Education Building - 95% Mechanical Specifications

DIVISIONS 21, 22 & 23 - TITLE PAGE 

SPECIFICATIONS 

FOR THE 

CONSTRUCTION OF 

SAINT CLOUD STATE UNIVERSITY 

EDUCATION BUILDING HVAC UPGRADE PROJECT 

ST. CLOUD, MINNESOTA 

CAIN OUSE ASSOCIATES, INC. 

PROJECT NUMBER 2010-108 

I hereby certify that this plan, specification or report was prepared by me, or under my 

direct supervision, and that I am a duly Licensed Professional Engineer under the laws 

of the State of Minnesota. 

Name 

SCOTT D. THOMAS, P.E. 

Signature 

Date: NOVEMBER 5, 2010 (95% SUBMITTAL Registration No. 21659

BLANK PAGE

MECHANICAL SPECIFICATIONS INDEX 

FIRE PROTECTION 

21 01 00 FIRE PROTECTION GENERAL PROVISIONS 

21 13 00 FIRE PROTECTION 

PLUMBING 

22 01 00 PLUMBING GENERAL PROVISIONS 

22 01 10 PLUMBING SYSTEMS TESTING 

22 05 00 PLUMBING BASIC PRODUCTS AND METHODS 

22 07 00 PLUMBING SYSTEMS INSULATION 

22 11 00 DOMESTIC BUILDING WATER SYSTEMS 

22 13 00 SOIL AND WASTE PIPING SYSTEMS 

22 42 00 PLUMBING FIXTURES 

HEATING, VENTILATING AND AIR CONDITIONING 

23 01 00 HVAC GENERAL PROVISIONS 

23 05 00 HVAC BASIC PRODUCTS AND METHODS 

23 05 40 MECHANICAL SOUND AND VIBRATION CONTROL 

23 05 90 TESTING, ADJUSTING AND BALANCING 

23 07 00 HVAC SYSTEMS INSULATION 

23 08 00 HVAC SYSTEMS COMMISSIONING 

23 09 00 AUTOMATIC TEMPERATURE CONTROL 

23 21 00 HYDRONIC PIPING SYSTEMS 

23 21 20 HYDRONIC SYSTEMS EQUIPMENT 

23 31 00 AIR DISTRIBUTION DUCT SYSTEM 

23 31 90 DUCTWORK CLEANING 

23 34 00 AIR DISTRIBUTION EQUIPMENT 

SCSU Education Building HVAC Upgrade Project 

Cain Ouse Associates, Inc. 

Project Number 2010-108

SCSU Education Building HVAC Upgrade Project 

Cain Ouse Associates, Inc. 

Project Number 2010-108 

BLANK PAGE





SECTION 21 0100 

FIRE PROTECTION GENERAL PROVISIONS 

PART 1 

REFERENCE 

1.01 GENERAL 

A. Division 00 Conditions of the Contract and Division 01 General Requirements are hereby 

made a part of this division. 

B. All reference to Fire Protection Work or Division 21 in other Divisions are hereby made a 

part of this division. 

C. Division 21 work shall include all Fire Protection work referenced in other Divisions of the 

work unless explicitly indicated otherwise. 

D. If any statements contained in Division 21 should conflict with the conditions of the 

contract or the General Requirements, the statement requiring the greater quantity, 

superior quality, or condition most favorable to the owner shall take precedence. 

E. If any statements contained in Division 21 conflict within the other Divisions of the work, 

the statement requiring the greater quantity, superior quality, or condition most favorable 

to the owner shall take precedence. 

F. Where words fire protection contract(s), fire protection contractor, fire protection, fire 

protection work, sprinkler contractor, sprinkler contract, sprinkler or sprinkler work appear 

in contract documents, that shall be taken to mean or refer to contracts or subcontracts 

for plumbing work required as scope of Division 21 work. 

G. Contract drawings show arrangements and sizes of principal apparatus and devices to 

be provided under this contract and connections thereto. These shall be followed as 

closely as actual building construction will permit. 

H. Drawings are diagrammatic and are a graphic representation of contract requirements, 

produced according to best available standards to an optimum scale. Dimensions of 

work as indicated on plans are not guaranteed to be as-built dimensions. No 

measurements shall be scaled from drawings and used as a definite dimension for layout 

or fitting work in place. 

I. Dimensions and ratings of equipment herein specified or indicated on drawings are 

indicated to establish desired outlines and characteristics of such equipment. Minor 

deviations will be permitted to allow manufactures specified to bid on their nearest stock 

equipment providing that substituted equipment equals or exceeds the basic 

performance conditions indicated. Contractor making substitution shall pay any 

increments costs incurred; contractor shall bear all costs of modifying substituted product 

to fit conditions shown or modifying building or other systems to receive product. 

HVAC UPGRADE PROJECT 210100 - 1 of 8 FIRE PROTECTION GENERAL PROVISIONS



EDUCATION BUILDING HVAC UPGRADE PROJECT PROJECT NUMBER 2010-108 

J. The mechanical reference symbols used on the drawings refer to the symbol sheets on 

the drawings or bound herein. These symbols shall designate materials, type, line 

descriptions and valve types for use on this project. 

K. Give careful consideration to work by all contractors on the job and organize the work so 

that it will not interfere with work of other trades. Consult the drawings and specifications 

for work to be provided by other trades for correlating information, and the architectural 

and structural drawings for details, dimensions, foundations, pits, etc. The contractor 

shall verify all dimensions and conditions before starting their work. 

L. Manufactured material hereinafter specified or shown on drawings shall be installed or 

applied according to manufacturers' directions unless specifically designated otherwise. 

M. Provide shall be defined as furnish and install. Therefore, where documents call for this 

division of the work to provide a certain item, this contractor shall be responsible for 

furnishing and installing that item. 

1.02 WORK INCLUDED 

A. Work includes furnishing all labor, material, equipment, service and the completion of 

details not mentioned or shown which are necessary for and reasonable incidental to 

successful operation of all mechanical systems as shown on drawings and as specified, 

except as such items as are specifically noted as being furnished under other sections of 

specifications. 

B. Drawings and specifications are to be considered as supplementing each other. Work 

specified but not shown, or shown but not specified, shall be performed or furnished as 

though mentioned in both specifications and drawings. 

C. Minor items, accessories or devices reasonably inferable as necessary for completion 

and proper operation of any system shall be provided by contractor or subcontractor for 

such system whether or not specifically called for by specifications or drawings. 

D. The only fire protection work not included shall be those items explicitly indicated 

otherwise. 

E. Layout of equipment as shown on drawings shall be checked and exact locations 

determined from dimensions or equipment approved by engineer. Adequate space for 

operation and maintenance shall be maintained. 

1.03 EXAMINATION OF DOCUMENTS 

A. Carefully read the project drawings and project specifications before submitting bid on 

the work to be done. Any doubt as to the true meaning of any part of the project 

specifications or other proposed contract documents shall be submitted in writing to the 

engineer for an interpretation thereof. 

B. The person submitting the request will be responsible for its prompt delivery. 

C. Interpretation of the proposed contract documents will be made only in writing duly 

issued, a copy of which will be mailed or delivered to each bidder receiving a copy of the 

FIRE PROTECTION GENERAL PROVISIONS 210100 - 2 of 8 HVAC UPGRADE PROJECT





project drawings and project manual and to such other prospective bidders as have 

requested they be furnished with a copy of each. 

1.05 SUBSTITUTE MATERIAL 

A. Requirements Division 0 Conditions of the Contract and Division I General Requirements 

apply to this article. 

B. If contractors wish to use item of equipment and/or materials other than those named in 

specification, apply in writing to the architect/engineer for approval of substitution prior to 

opening of bids, submitting with request for approval complete, descriptive and technical 

data on the items or item proposed to be furnished. Prior approval period shall be as 

indicated in the General Conditions. 

C. System design is based on first manufacturer mentioned. Additional listed manufacturers 

may be used in the base bid provided that this division of the work assumes responsibility 

for correct size and capacity, space limitations, plumbing and electrical deviations. This 

responsibility to include any redesign of the structure, foundations, utilities, piping, wiring 

or any other part of the structural, mechanical, sanitary or electrical work. The cost of all 

such redesign, drawings, detailing and accompanying additional costs of any such items 

of the work, shall be paid by this section of the work and such redesign shall be subject 

to the approval of the engineer. 

1.06 GUARANTEES 

A. Requirements of Division 00 Conditions of the Contract and Division 01 General 

Requirements apply to this article. 

B. This contractor is responsible for any defects which may develop in any part of the 

mechanical systems, caused by faulty workmanship, material or equipment, and shall 

agree to replace any such faulty workmanship, material or equipment during the period of 

one year from date of substantial completion of the work without cost to owner. 

Acceptance of this work shall not waive this guarantee. 

1.07 CODES AND STANDARDS 

A. The mechanical design is intended to conform with all local codes, including the 

applicable requirements of the latest edition of the following standards and/or regulations. 

All material and equipment must conform to these codes. This shall not permit a lower 

grade of construction where the drawings or specifications call for workmanship or 

materials in excess of code requirements. 

International Building Code with State of Minnesota Amendments 

International Fire Code 

State of Minnesota Plumbing Code 

Iternational Mechanical Code with State of Minnesota Amendments 

State of Minnesota Energy Code 

Local Codes 

American Concrete Institute 

American Conference of Governmental Industrial Hygienists 

American Institute of Steel Construction 





American Gas Association 

Institute of Electrical and Electronic Engineers 

American Society of Mechanical Engineers 

American Society of Testing Materials 

American Standards Association 

American National Standard Institute 

Sheet Metal, Air Conditioning and Roofing Contractors Association 

American Welding Society 

National Board of Fire Underwriters 

National Fire Protection Association 

National Bureau of Standards 

National Electric Code 

National Electrical Manufacturers Association 

National Sanitation Foundation 

American Air Balance Council 

American Society of Heating, Refrigeration and Air Conditioning Engineers 

National Safety Code for Mechanical Refrigeration 

National Association of Sheet Metal and Air Conditioning Engineers 

Environmental Protection Agency 

Pollution Control Agency 

Occupational Safety and Health Act 

1.08 FEES AND PERMITS 

A. All fees, permits and licenses required for the mechanical work are to be included in the 

contract. Fees shall also include Plan Review Fees required by the State. 

B. Any inspection charges by governing authorities shall be requested and paid for under 

this contract. 

1.09 Submittals 

A. Division 01 General Requirements shall apply to this Division of the Contract. 

B. Submit shop drawings for the following equipment and materials: 

Valves 

Piping and Associated Specialties 

Hangers, Supports and Anchors 

Sprinkler Heads 

Piping Identification 

FM 200 Systems 

Miscellaneous Specialties 

C. Refer to individual specification sections for additional specific requirements. 

D. Submit job tailored piping diagrams for equipment with unit mounted piping systems. 

E. Submit job tailored wiring diagrams for equipment with unit mounted control systems. 

F. See other Division 21 Sections for further requirements. 






PART 2 

PRODUCTS 

NOT APPLICABLE 

PART 3 

EXECUTION 

3.01 CUTTING AND PATCHING 

A. All cutting, fitting, repairing, and finishing of carpentry work, metal work or concrete work, 

etc., which may be required for the work installed under this division, shall be done by 

workers skilled in their respective trades at the expense of this contractor. When cutting 

is required, it shall be done in such a manner as not to weaken walls, partitions or floors 

and holes required to be cut in floors must be drilled without breaking out around the 

holes. The contractor shall make arrangements with the trades to do all work covered by 

their respective trades. 

B. Before doing any cutting, the contractor shall obtain permission from the engineer and 

follow engineer's instructions as to the method of cutting. All holes shall be cut as small 

as possible to admit piping and with as much care as possible. This shall include cutting 

of all floors that are poured where sleeves or openings are omitted. 

C. Avoid cutting insofar as possible by setting sleeves, frames, etc., or requesting openings 

in advance. 

D. Assist general contractor in framing openings for ducts and/or piping by checking location 

of openings required and checking sizes of openings required. 

E. If cutting of existing work or newly furnished work is required by the contractor, contractor 

is responsible for the work to its original condition. 

3.02 TEMPORARY WATER AND SEWER 

A. Carefully examine all parts of Division 00 Conditions of the Contract, and Division 01 

General Requirements for requirements regarding temporary sewer, water, gas, etc. 

Each contractor shall provide for these requirements. 

3.03 ENTRY OF EQUIPMENT 

A. Make all provisions for the entry of equipment provided under contract to the installed 

locations. Provide all openings in the building, if necessary, and do all excavating, 

backfilling and repair necessary. 

3.04 CONNECTIONS AND LAYOUT 

A. Piping and equipment shall be installed substantially as shown on the drawings. Exact 

location of each and every pipe and piece of equipment cannot be given by scaling the 

drawings, but shall in every case be placed so as to avoid interference with other work. 

Should it be necessary to make minor changes in the location of any pipe or piece of 





equipment for its proper installation and operation, or to avoid conflict with other trades, it 

shall be done by the contractor without extra cost. 

B. Where connections are made to equipment furnished by others, the contractor shall 

obtain exact location of connection from persons furnishing said equipment. 

C. Pipes shall be run with proper grade to provide for easy draining. Pipes must be 

thoroughly reamed and cleaned before installation. Consult and cooperate fully with the 

other contractors so as to obtain the proper grouping of pipes and to avoid interference. 

Pipes run overhead shall be placed as close to the ceiling structure as possible to 

maintain proper headroom and to present a neat appearance, all consistent with the 

correct pitching of pipes. Consult the engineer before installing any pipe lines or 

ductwork which will reduce the proper headroom or ceiling in any way. Piping shall be 

run as shown on the drawings, but the engineer reserves the right to make slight 

changes, without extra charge, to avoid interference with other work or unforeseen 

structural interference. 

3.05 CLEANING AND HOUSEKEEPING 

A. Requirements of Division 00 Conditions of the Contract, and Division 01 General 


B. Each contractor shall clear away all debris, surplus materials, etc., resulting from the 

work or operation, leaving the job and the equipment furnished under the contract in a 

clean condition. 

C. Fixtures and equipment shall be thoroughly cleaned, removing all plaster, paint, stickers, 

rust, stains, and other foreign matter or discolorations, leaving every part in an 

acceptable condition and ready for use. 

3.06 IDENTIFICATION 

A. The fire protection contractor shall be responsible for and provide the identification and 

labeling of all equipment and piping. All identification shall conform to the requirements 

of the International Mechanical Code and as follows: 

1. Label all lines using Seton Company or equal prepared label, or the stencil 

method with black lettering on all light colored lines and white lettering on all dark 

colored lines. 

2. Pipe Labeling Locations: 

a) Whenever a pipe turns 90 degrees out of sight from identification. 

b) Wherever a pipe passes through a wall, bands shall occur close to the 

wall on both sides. 

c) In all other locations deemed necessary by architect/engineer for ease of 

maintenance. 

d) At no more than 25 foot intervals. 

3. Adjacent to each color band or set of bands, the function of the particular pipe 

and an arrow denoting the direction of flow shall be stenciled in black. Stenciled 

letters shall be a minimum of 1" high and along with the arrow, shall be applied in 






3.07 PAINTING 

a position that is easily read from the normal location of personnel within the 

space. 

4. Equipment shall be identified with 1" high letters indicating unit abbreviation and 

number. For example, water heaters shall be identified as WH-1 and WH-2. 

A. This Contractor shall do no painting except as hereinafter specified. 

3.08 ELECTRICAL 

1. This contractor shall paint all unpainted brackets, stands, supports, etc., with one 

coat of Rust-Oleum metal primer and one coat of Rust-Oleum grey paint. 

A. This section includes all electrical wiring systems for the mechanical work as hereinafter 

described. Furnish and set in place all motors required for the operation of equipment 

furnished in this contract. 

B. All electrical and motor characteristics shall be as shown on the electrical and 

mechanical drawings or specifications. 

C. Electrical contractor will furnish all disconnects and starters as required for all motors, 

unless noted otherwise. 

D. Unless indicated otherwise, the electrical contractor will mount the disconnects and 

starters and will wire through the disconnect, through the starter and make connections 

to motors unless mounted and wired as part of package equipment. 

E. Unless indicated otherwise, all control devices and all control wiring required for the 

proper operation of all plumbing equipment shall be furnished and installed complete by 

this contractor. 

F. Motor control wiring done by this contractor shall conform to the requirements of the 

Electrical Specifications. 

G. Changes to the electrical system necessitated by equipment, motors, etc., furnished by 

this contractor that differ from those specified shall be paid for by this contractor. 

H. Single phase motors shall be permanent split capacitor type, drip-proof. Three phase 

motors general purpose, squirrel cage induction type unless specified otherwise. 

Minimum service factors shall be 1.15. All motors single speed, 1750 RPM, unless 

specified otherwise for specific equipment. 

I. All three phase motors for mechanical equipment rated 3 horsepower and larger shall be 

high efficiency type. Motors shall be labeled to comply with NEMA Standard MG1-12.53 

with the nominal efficiency printed on the nameplate. Efficiency shall be based on 

dynamometer testing per IEEE, Standard 112, Method B. Motors shall be equivalent to 

Delco E2, Ground-Century, E-Plus, G.E. Energy Saver, Reliance XE or Westinghouse 

Lifeline Tee II. 





J. Wiring work by this Division of the Work shall be performed in accordance with the 

requirements of the Division 16 Specifications and the latest edition of the National 

Electric Code. 

3.09 TRAINING 

A. Prior to on-site training, provide classroom training at a site approved by the Owner. 

B. Provide additional on site training to walk through start-up, shut down and preventative 

maintenance procedures. 

C. Provide additional on site training at the time of final completion to refresh the owner on 

the proper operation of the system. 

D. Training shall be video taped with the video tape furnished to the Owner. 

E. Contractor shall coordinate training between equipment suppliers and the Owner so the 

equipment suppliers actually perform the training. 

END OF SECTION 







FIRE PROTECTION 

PART 1 

GENERAL 

1.01 REFERENCE 

A. Requirements of Section 210100 General Provisions apply to all work under this section. 

1.02 SCOPE 

A. This section includes all labor, material, equipment, skill and tools necessary to furnish 

and install the sprinkler piping, sprinkler risers, and sprinklers from five feet outside of the 

building. 

B. The installation shall comply with all local rules and regulations and with all rules and 

regulations of the National fire Protection Association #13, #20, #24, #231, #231C, and 

#291. 

C. Separate domestic and fire services shall be provided as shown on the plans. 

D. Areas subject to freezing shall be provided with a dry system. Dry pipe valves shall be 

located at the water service or as noted. 

E. Provide stand-pipe systems in the Stairwells in accordance with NFPA 14, City of St. 

Cloud requirements and State of Minnesota requirements. 

F. Zoning: provide one zone per floor complete with isolation valve (with tamper switch) and 

flow switch for each floor level. Floor zone valve assemblies shall be located in the 

Lower Level Mechanical Room at location shown on the plans. 

1.03 QUALIFICATIONS OF CONTRACTOR 

A. The contractor for this fire protection installation shall be a duly licensed and qualified fire 

protection contractor, and regularly engaged in the installation of automatic sprinkler 

systems. 

1.04 WORKING DRAWINGS 

A. Before commencing fire protection installation, the fire protection contractor shall submit 

installation drawings and hydraulic calculations to the local fire marshal and the owner's 

insurance company for approval. Installation drawings and hydraulic calculations shall 

be certified by a Minnesota Registered Professional Engineer. 

B. The installation drawings shall be coordinated with the work of other trades to avoid 

conflict with conduit, lights, piping, mechanical equipment, and structural elements. 

C. After fire marshal and insurance company approval, the sprinkler contractor shall submit 

the working drawings and hydraulic calculations to the architect and shall secure agency 

HVAC UPGRADE PROJECT 231300 - 1 of 4 FIRE PROTECTION




approvals before commencing work at the job site. Copies of installation approval letters 

or certificates shall be delivered by sprinkler contractor to architect at completion of work. 

D. Professional Liability/Errors & Omissions Insurance: At the time of Shop Drawing 

Submittal, submit a Certificate of the Professional Liability/Errors and Omissions 

Insurance. Contractor shall carry Engineer’s Professional Liability insurance policy 

coverage with a $1,000,000.00 limit for each occurrence and $2,000,000.00 annual 

aggregate coverage. 

1.05 SPRINKLER DENSITIES 

A. Densities indicated herein are minimum requirements. The owner's insurance company, 

NFPA and local requirements that mandate greater densities shall prevail. 

B. Sprinkler system serving office and classroom areas shall be hydraulically designed for 

.10 GPM per square foot over the most remote 1500 square feet (Light Hazard) with 100 

GPM hose stream. 

C. Sprinkler system serving storage rooms/areas and mechanical spaces shall be 

hydraulically designed for .15 GPM per square foot over the most remote 1500 square 

feet (Ordinary Hazard Group I) with 250 GPM hose stream. 

1.06 HYDRAULIC DESIGN BASIS 

A. Provide system design and hydraulic calculation based on water flow test as specified in 

this Section of the Specification. 

1.07 WATER FLOW TEST 

A. A water flow test was performed on July 27, 2010 that yielded a static pressure of 63 psig 

and a residual pressure of 60 psig with a flow rate of 3570 gpm. The test hydrants were 

located east of the Education building and west of the Engineering Building. The flow 

hydrant was located directly in front of the Engineering Building and the test hydrant was 

located southwest of the Engineering Building. 

PART 2 

MATERIALS AND INSTALLATION 

2.01 MATERIALS, EQUIPMENT, VALVES AND DEVICES 

A. All materials, equipment valves and devices installed and/or furnished under this section 

shall be listed and/or approved for use in fire protection installation by the authorities, 

agencies, codes, and standards named in this section of the specifications. 

B. Backflow Prevention: As a minimum, provide a Detector Check Valve Assembly in 

accordance with the requirements of the State of Minnesota Plumbing Code. 

FIRE PROTECTION 211300 - 2 of 4 HVAC UPGRADE PROJECT





2.02 PERMITS AND FEES 

A. Any permits or fees for the installation or construction of any portion of the automatic 

sprinkler system which are required by any of the authorities and/or agencies having 

jurisdiction, shall be obtained and paid for by this contractor. 

2.03 SPRINKLER HEADS 

A. Sprinkler heads shall be U.L. listed, 1/2" orifice and 165 degrees F. rated. Sprinkler 

heads located in the computer room shall be high temperature 212 degrees F. rated. 

Sprinkler heads installed are to be sidewall, upright or pendant as conditions require and 

shall be one of the following types and finishes: 

1. Upright sprinklers with plain brass finish in rooms without ceilings. 

2. Sidewall type sprinklers throughout room areas with finished ceilings shall be 

chrome plated complete with escutcheon plates. 

3. Finished areas with ceilings shall be provided with fully/semi-recessed pendent 

type heads and escutcheons of white finish. 

4. Sprinkler heads shall be quick response type where required by Code. 

B. Furnish spare sprinkler heads as required by NFPA. 

2.04 NUMBER OF SPRINKLER HEADS 

A. The contractor shall provide engineering drawings showing risers, cross main, branch 

main spacing, zones and head location and quantity. If more or less heads are required 

to obtain agency approval, the contract price will not be adjusted. The fewer or additional 

heads will be considered incidental to the installation. 

B. Provide wet sprinkler system complete with fire department connection. 

2.05 ALARM DEVICES 

A. Riser waterflow alarm switches to be Automatic Sprinkler Corporation Model 86-100, 15 

amp or approved equal and 10", 120 volt alarm bells on the outside wall and inside wall 

of the building and one 125 volt flashing beacon on outside wall all located where 

approved by local fire marshall. Connect to adjacent 120 volt circuit provided by Division 

16. 

B. Provide tamper switches for valves as indicated on the plans. 

2.06 FIRE DEPARTMENT CONNECTION 

A. Provide fire department Siamese connection as indicated on the plans. Fire department 

connection shall be Elkhart #156 or approved equal, polished brass wall type with 2 1/2" 

X 2 1/2" X 4" body and escutcheon in accordance with local fire department 

requirements. 

2.07 DRAINS 

A. System drains shall be discharged to the outside of the building. 

HVAC UPGRADE PROJECT 231300 - 3 of 4 FIRE PROTECTION




2.08 STANDPIPES 

A. Provide Class I standpipes where shown on plans. 

PART 3 

EXECUTION 

3.01 GUARANTEE 

A. The entire fire protection installation, as specified under this section of the specifications, 

shall be guaranteed for one (1) year against defective equipment, materials and 

workmanship. The guarantee period is to begin on the date the equipment is placed in 

operation at the owner's request or for owner's convenience, or from the date a 

successful acceptance test is made, whichever occurs first. 

B. This guarantee shall not be construed to render service or maintenance required in the 

normal operation of the equipment, or to make repairs that may be needed due to normal 

wear and tear or the owner's negligence, abuse or breakage. 

3.02 SYSTEM CLEANING AND TESTS 

A. Flush system of foreign matter in accordance with NFPA 13. 

B. At completion of installation, hydrostatically test system in accordance with NFPA 13. 

C. Test shall be witness by Fire Marshal, owner and/or architect/engineer. 

3.03 INSTALLATION 

A. Place pipe runs to minimize obstruction to other work. 

B. Where ceilings will exist, place piping in concealed spaces above finished ceilings. 

C. Sprinkler heads in areas with finished ceilings shall be installed such that in a ceiling grid, 

heads shall not be any closer than 1'-0" from any side of the ceiling tile (a tolerance of + 

or - of one inch will be allowed). Where necessary, relocate existing sprinkler heads to 

avoid new ceiling heights and light fixtures. 


FIRE PROTECTION 211300 - 4 of 4 HVAC UPGRADE PROJECT






PLUMBING GENERAL PROVISIONS 

PART 1 

REFERENCE 

1.01 GENERAL 



B. All reference to plumbing work or Division 22 in other Divisions are hereby made a part of 

this division. 

C. Division 22 work shall include all mechanical work referenced in other Divisions of the 


D. If any statements contained in Division 22 should conflict with the conditions of the 






F. Where words "plumbing contract(s)", "plumbing contractor", "plumbing" or "plumbing 

work" appear in contract documents, that shall be taken to mean or refer to contracts or 

subcontracts for plumbing work required as scope of Division 22 work. 











deviations will be permitted to allow manufactures specified to bid on their nearest stock 

equipment providing that substituted equipment equals or exceeds the basic 

performance conditions indicated. Contractor making substitution with prior approved 

products shall pay any increments costs incurred; contractor shall bear all costs of 

modifying substituted product to fit conditions shown or modifying building or other 

systems to receive product. 

HVAC UPGRADE PROJECT 220100 - Page 1 of 10 PLUMBING GENERAL PROVISIONS

















N. Where the documents refer to “approved equal”, it shall mean “prior approved equal”. 

Manufacturers must be approved prior to the closing of the bids to be allowed on the 

project. Manufacturers must be indicated by name in the project manual, on the 

drawings or in the Addenda to be allowed on the project. 













D. The only mechanical work not included shall be those items explicitly indicated otherwise. 




1.03 EXAMINATION AND LOCATION OF SITE 

A. Visit the building site and become familiar with all the existing conditions before 

submitting bid. Failure to visit site will in no way relieve the contractor from necessity of 

furnishing any material or performing any work that may be required to complete the work 

in accordance with the drawings and specifications which could be only determined by 

visiting the site. 

PLUMBING GENERAL PROVISIONS 220100 - Page 2 of 10 HVAC UPGRADE PROJECT
















A. Requirements Division 0 Conditions of the Contract and Division I General Requirements 

apply to this article. 





































Local Codes 



























contract. 



C. SAC and WAC (Sewer and Water Availability Charges) will be paid for by the Owner. 

D. Saint Cloud State University will pay for Plan Review Fees. 









Valves 



Insulation Materials 

Plumbing Fixtures 

Floor Drains 

Clean Outs 


Vacuum Breakers and Backflow Preventers 




PART 2 

PRODUCTS 


PART 3 

EXECUTION 



etc., which may be required for the work installed under this division, shall be done by 











in advance. 









3.02 TEMPORARY WATER AND SEWER 


General Requirements for requirements regarding temporary sewer, water, gas, etc. 

Each contractor shall provide for these requirements. 







































A. The plumbing contractor shall be responsible for and provide the identification and 

labeling of all equipment and piping insulated or uninsulated. All identification shall 

conform to the requirements of the International Mechanical Code and as follows: 

3.07 PAINTING 









maintenance. 


e.) Non-Potable water shall be labeled “NONPOTABLE WATER” with yellow 

labels and domestic cold water shall be labeled “SAFE WATER” with 

green labels. Points of outlets for nonpotable water shall be marked with 

a tag or color coded. 





space. 


number. For example, water heaters shall be identified as WH-1 and WH-2. 










C. Electrical contractor will furnish all disconnects and starters as required for all motors, 






D. Unless indicated otherwise, the electrical contractor will mount the disconnects and 

starters and will wire through the disconnect, through the starter and make connections 

to motors unless mounted and wired as part of package equipment. 


proper operation of all plumbing equipment shall be furnished and installed complete by 

this contractor. 

F. Motor control wiring done by this contractor shall conform to the requirements of the 









high efficiency type. Motors shall be labeled to comply with NEMA Standard MG1-12.53 

with the nominal efficiency printed on the nameplate. Efficiency shall be based on 

dynamometer testing per IEEE, Standard 112, Method B. Motors shall be equivalent to 

Delco E2, Ground-Century, E-Plus, G.E. Energy Saver, Reliance XE or Westinghouse 

Lifeline Tee II. 


requirements of the Division 16 Specifications and the latest edition of the National 

Electric Code. 

3.09 TRAINING 









3.10 SERVICE INTERRUPTIONS 

A. Service interruptions shall be coordinated with and approved by the Owner. 

B. Service interruptions shall be limited to unoccupied hours of operation. 






C. This Article shall apply to the following services: 

1. Domestic Water 

2. Hydronic Hot and Chilled Water 

3. Fire Protection Water 

3.11 REMOVAL WORK 

A. Remove existing piping, ductwork, controls and equipment as required to allow 

installation of new systems shown on the plans. 

B. Turn over any existing materials or equipment that the Owner deems suitable for 

salvage. All other materials and equipment shall be removed and disposed of at the 

expense of this Contractor. 

C. Connect to existing piping systems as shown on the plans. 






BLANK PAGE 







PLUMBING SYSTEMS TESTING 

PART 1 

GENERAL 

1.01 SCOPE 

A. Section 22 01 00, Plumbing General Provisions of this project manual applies to all work 

under this section. 

B. All work shall be inspected, tested and approved as required by State and local 

regulations and/or as specified in this Section, with State and local regulations 

establishing minimum requirements. 

C. All tests shall be subject to witness by State and/or local authorities and the 

Architect/Engineer, and test results recorded and reported on appropriate certificates 

submitted to the Architect/Engineer in three copies. 

1.02 TESTS 

A. Domestic Water: Water piping shall be tested hydrostatically at 125 PSIG or 1-1/2 times 

the operating pressure, whichever is greater, for a period of two hours prior to application 

of pipe insulation and final connection to fixtures. 

B. Sanitary Waste, Vent and Rainwater Systems: All interior and exterior piping shall be 

tested with air at 5 PSIG for a period of 15 minutes. Air pressure shall be maintained for 

duration indicated. An air pressure drop will not be allowed. 

PART 2 

PRODUCTS 

NOT APPLICABLE. 

PART 3 

EXECUTION 

3.01 DOCUMENTATION 

A. Time, date and listing of testing procedures shall be logged and shall be submitted with 

the O & M Manuals at the completion of the project. Data shall be documented in 

typewritten fashion. Hand written notes will not be acceptable. 

B. Any leaking fittings or piping shall be documented and recorded and repair and re-testing 

procedures shall be recorded. 


HVAC UPGRADE PROJECT 220110 - 1 of 2 TESTING, ADJUSTING & BALANCING




BLANK PAGE 

TESTING, ADJUSTING & BALANCING 220110 - 2 of 2 HVAC UPGRADE PROJECT






PLUMBING BASIC PRODUCTS AND METHODS 

PART 1 

GENERAL 

1.01 QUALIFICATIONS 

A. Materials are listed by manufacturer, product type and number which indicates the 

quality, class and type of materials required. 

B. The methods describe the general installation minimum acceptable requirements and 

system operation functions. 

C. Materials and system identification are indicated on the drawings by reference to the 

symbol key thereon. 

D. This Section of the Work shall apply to all Sections of Division 22 scope of work. 

1.02 PRODUCT DELIVERY, STORAGE AND HANDLING 

A. Materials selected must meet delivery requirements for this project that will allow 

installation within the project completion schedule. 

B. The storage and handling of materials shall be coordinated with all construction trades so 

as not to block site access and so as to allow efficient handling of materials as used. The 

materials shall be protected as required to maintain standards acceptable within the 

industry. 

PART 2 

PRODUCTS 

2.01 PIPE AND FITTINGS 

A. Approved product sources: 

MATERIALS 

Copper pipe and 

fittings 

Cast iron soil 

Valves 

MANUFACTURER 

Chase Brass and Copper, 

Reading Tube, Mueller, 

Bundy, Nibco 

Tyler Pipe, Star Pipe 

Apollo, Nibco, Red & White, Watts and Milwaukee 

B. Furnish and install where shown on the drawings pipe, pipe nipples and fittings of type 

and material listed below as required to connect fixtures and equipment. 

C. The following types of pipe are acceptable only if they meet State and local codes and 

ordinances. Other types of pipes that meet codes and ordinances will be considered. 

HVAC UPGRADE PROJECT 220500 - 1 of 9 PLUMBING BASIC PRODUCTS & METHODS




D. Domestic cold water and hot water. 

1. Pipe: Type L hard copper, ASTM B88. 

Fittings 1/2"-1": Cast bronze solder or wrought solder type. 

Fittings 1 1/4"-2": Wrought solder type, ANSI B16.22. 

Solder: 95/5. 

Pro-Press fittings will also be acceptable. 

2. Underground piping shall be type K soft copper (ASTM B88) continuous without 

any joints. Underground piping shall be provided with a cold tar epoxy coating as 

manufactured by Tapecoat or Bitumastic installed in accordance with 

manufacturer's recommendations. 

3. Pipe 2 1/2" and above: Schedule 40 galvanized steel. 

Fittings 2 1/2" and above: Screwed galvanized type. Grooved fittings as 

manufactured by Victaulic will also be acceptable. 

F. Soil, waste, vent, and rainwater piping underground (inside or within 5' of building). 

1. Pipe: Service weight cast iron, centrifugally cast, ASTM A-74 latest edition, or 

hubless cast iron, ASTM-A-888, CISPI 301 latest editions. Pipe must be marked 

with the name of the manufacturer. 

Fittings: Service weight cast iron, ASTM A-74, or hubless ASTM-A-888/CISPI 

301. 

Joints: Lead and Oakum, ANSI A40.8, or neoprene TySeal gasket, ASTM C- 

564, or mechanical No Hub Coupling with neoprene gasket inside a Stainless 

Steel Housing per CISPI 310 latest edition. 

2. Pipe: PVC schedule 40, ASTM D2665. 

Fittings: PVC schedule 40, ASTM D2665. 

Joints: Fusion or solvent cement, ASTM D2855. Provide primer of contrasting 

color than the pipe. 

Note: Lay pipe on continuous granular bed. Not allowed where cast iron is required by 

plan notes. 

G. Waste, vent, and rainwater piping (above ground). 

1. Pipe: Schedule 40 galvanized steel or cast iron, ASTM A120. 

Fittings: Screwed cast iron, black, ANSI B16.12. 

2. Pipe: Service weight cast iron, centrifugally cast, ASTM A74, or hubless cast 

iron, ASTM A-888 and CISPI 301 latest editions. Pipe must be marked with 

name of manufacturer. 

3. Fittings: Service weight cast iron, ASTM A-74, or hubless cast iron per ASTM A- 

888, CISPI 301. 

4. Joints: Lead and oakum, ANSI A40.8, or TYSeal neoprene gasket, ASTM C- 

564, or mechanical No Hub Coupling with neoprene gasket inside Stainless Steel 

Housing, CISPI 310 latest edition. 

H. Water Heater High Efficiency Appliance Flue and Combustion Air Piping 

1. Schedule 40 CPVC in accordance with manufacturer’s recommendations. 

I. Condensate drain. 

1. Pipe: Schedule 40 PVC. 

Fittings: DWV solvent cement welded type. 

PLUMBING BASIC PRODUCTS & METHODS 220500 - 2 of 9 HVAC UPGRADE PROJECT




J. Compressed air piping. 

1. Pipe: Copper, Type L hard temper, ASTM B88. 

Fittings: Cast bronze or wrought copper. 

Solder: 15% silver solder (sil-Fos). 

K. Pressure Washer Piping: 

1. Pipe: Schedule 80 Galvanized Steel with threaded XS, Schedule 80 fittings. 

2.02 VALVES 

A. Valves shall be furnished and installed at each plumbing fixture, piece of equipment, and 

each heating or refrigeration group, and at points required for adequate service and 

drainage of the system. Acceptable manufacturers are listed in Article 2.01, paragraph 

A. 

B. All valves must be located in accessible locations or in "Milcor" amply sized recessed 

which shall be supplied by the mechanical contractor to the general contractor who will 

install them. Panels shall have trim finish to match adjacent materials and be provided 

with key lock hardware. 

C. Check valves located in the vertical position or located on the discharge side of hydronic 

pumps shall be of the non-slam type. 

E. Gate valves will not be allowed for water systems. Ball valves shall be used for water 

systems. 

F. Valve Schedule. 

1. The listed valves shall be used in systems as per following usage schedule. 

Plumbing water and waste piping-A 

2. Shut Off Valves Size Pressure No. Usage 

Ball valve, Teflon 

seats & seals, add 

stop for balancing 

threaded Apollo 1 1/4"-4" 150 PSI 77-200 A 




soldered Apollo 1/4"-4" 150 PSI 82-200 A 

3. Check Valves 

Size Pressure No. Usage 

Check, bronze 

body, screwed 0"-3" 200#WSP B-345 A 

Check, bronze 

body, solder 

joint 0"-3" 125#WSP B-309 A 





Check, iron 

body, flanged or 

wafer, non-slam, 

Titan FCI 4"&up 125#WSP G-931 A 

Check, semi-steel, 

bronze trim, 

flanged, silent, 

Williams Hager 1"&up 125#WSP 329 A 

2.03 UNIONS AND DIELECTRIC FITTINGS 

A. Use universal insulating unions or dielectric coupling connections at all points where 

dissimilar metals are joined. Epco is approved equal. 

B. Unions on piping 2" and smaller shall be an approved ground joint type for 150 pounds 

working pressure. Unions and flanges on copper tubing shall be of solder joint type. 

C. Unions shall be provided in all pipe connections to equipment and where necessary to 

facilitate removal and/or repair of equipment. 

PART 3 

EXECUTION 

3.01 PIPING SYSTEMS INSTALLATION AND METHODS 

A. This contractor shall consult and cooperate fully with other contractors so as to avoid 

interference with ducts, electrical installation, etc. Plumber shall consult engineer before 

installing any pipe lines which will reduce the proper headroom in any way. Piping shall 

be run as shown on the drawings but engineer reserves the right to make minor changes, 

without extra charge, to avoid interference. Except for piping running in crawl spaces, 

tunnels, equipment rooms and unfinished areas, all piping shall be concealed unless 

specifically indicated otherwise on drawings or directed by engineer. 

B. All water piping shall be pitched to drain and vent points 1" in 40' wherever possible. 

Provide 3/4" ball valve drain at end of each main and elsewhere as indicated on 

drawings. 

C. Consult manufacturer's data and the large scale architectural details of rooms containing 

plumbing fixtures before roughing in piping. Plug or cap piping immediately after 

installation. Waste stuffed in open ends of piping shall be removed before installation of 

next length of pipe. 

D. The piping system shall be installed substantially as shown on the drawings. The exact 

position of pipes cannot be scaled from the drawings, but they shall be placed to avoid 

interference with other work. Should it be necessary to make minor changes in location 

of any pipe for its proper installation and operation, or to avoid conflict with other trades, it 

shall be done by this contractor without extra charge. 

E. All piping in finished rooms shall be concealed in partitions, furred spaces or suspended 

ceilings wherever possible. All piping shall be installed so as to present a neat 





appearance and the overhead piping shall be arranged to provide for maximum head 

room. There shall be absolutely no pipe cutting or threading on concrete floor areas. 

3.02 EXCAVATION, TRENCHING AND BACKFILLING. 

A. All excavation and backfilling for pipelines inside and outside the building shall be done 

by contractors pertaining to their work. 

B. Trenches for all underground pipelines shall be excavated to the required depths. In no 

case shall the pipe trench be excavated by machinery less than 6" above the final trench 

bottom. The width of the trench shall be such as to give clearance of not less than 6" on 

each side of the pipe. The banks of the trenches shall be dug to the soil's angle of 

repose and where required, shall be properly sheeted and braced. The remaining 6" to 

the final trench bottom shall be excavated by hand just before the laying of the pipe so 

that the bottom of the trench is properly formed to give uniform support and necessary 

grade to the piping with proper bearing on undisturbed earth. Where piping would 

otherwise bear on fill, disturbed earth, or unstable soil, the contractor shall provide 

poured concrete piers to support the pipe at correct elevation of each joint, and the base 

of each pier shall bear upon stable, undisturbed earth. Bell holes shall be excavated so 

that pipe will rest on solid ground for its entire length. 

C. Where existing conduits, sewers, drains, piping, manholes, catch basins and other 

structures are encountered, they shall be carefully supported and protected from injury. 

In case of injury, they shall be restored to original condition under this contract without 

additional compensation. 

D. Keep the excavation free of water at all times with the provision of dams or other 

structures as required and necessary and provide all necessary pumping and bailing. 

E. The spaces between the pipe and sides of the trench shall be filled by hand and 

compacted and tamped in successive layers approximately 6" in depth when compacted 

up to a level not less than 16" above the top of the pipe. The remainder of the trench or 

excavation shall be compacted and tamped in successive layers approximately 6" in 

depth when compacted. The fill material shall be clean and free from debris, clay, 

topsoil, boulders or other such elements and shall be as approved by the 

architect/engineer. Each layer shall be kept level and smooth before the succeeding 

layer is placed and each layer shall be thoroughly compacted by puddling and/or 

mechanical tamping over its entire surface until there is no loss of elevation. Compaction 

under paving, walks and structures shall be minimum 95% Modified Proctor Density. 

This contractor shall arrange for a laboratory to test the fill for compaction at locations 

indicated by the architect/engineer. The results of the tests shall be submitted to the 

architect/engineer for approval before the pouring of any slabs or surfacing in such 

areas. 

F. All excavated materials not required for fill or backfill shall be disposed of or removed 

from the site by this contractor. 

3.03 PIPE HANGERS, INSERTS AND SUPPORTS 

A. Furnish and install required pipe hangers and supports of the various types specified 

herein or detailed on the drawings, with inserts, beam clamps, sockets, bolts, clips or 





rods to complete all hangers and supports. No chain, wire, strap or perforated strap will 

be used. Hangers of Anvil International, Inc. manufacture are specified, but hangers of 

Fee and Mason or Elcen which comply to the specifications will be accepted. 

B. Piping suspended from construction above shall be hung from Anvil Fig. 152 to 730 lb. 

load and 282 up to 1140 lb. loads on concrete construction, Fig. 133 I-beam clamps on 

bar joist construction, Fig. 217 type 3 Simplex side I-beam clamp on steel beams, and 

Fig. 202 side beam bracket on wood construction. The Fig. 202 bracket must be 

attached with through going bolts. Six inch and larger piping shall be supported from two 

or more bar joists. 

C. Hangers for pipes 1\2" and smaller shall be Anvil split ring hanger Fig. 108. Hangers for 

3/4" and larger shall be Anvil wrought clevis hanger Fig. 260 or 65. All hangers to be 

complete with sockets, rods, turnbuckles, nuts, etc. 

D. Hangers for copper piping shall be Anvil CT-69 adjustable wrought pip ring with copper 

plated finish in lieu of specified above. 

E. Vertical piping shall be supported at each floor with Anvil riser clamp Fig. 261. Vertical 

copper piping shall be supported at each floor by clamps placed under coupling installed 

in the pipe. 

F. The following rod sizes shall be minimum permissible for pipe hangers. 

Pipe Sizes - Inches 

Hanger Rod Dia. - Inches 

up to 2 3/8 

2 1/2 to 3 1/2 1/2 

4 to 5 5/8 

6 3/4 

8 to 12 7/8 

14 & up (within loading limits) 1 

Trapeze hanger rods * 

* As required to carry weight of trapeze channel, span of piping with contents, insulation 

and supports plus a 200 pound live load. Loading not to exceed 4000 PSI on hanger 

rods. 

G. The following support intervals shall be the maximum permissible, but may be closer if 

necessary for proper support. Whenever pipe run changes direction, two hangers shall 

be used. 

1. Maximum distance between supports for steel piping. 


Spacing of Hangers 

1/2 5'-0" centers 

3/4 6'-0" centers 

1 7'-0" centers 

1 1/2 9'-0" centers 


2 1/2 11'-0" centers 


3 1/2 13'-0" centers 








8 or larger 19'-0" centers 





2. Maximum distance between supports for copper tubing. 

Pipe Sizes - Inches Spacing of Hangers 

1/2 5'-0" centers 

3/4 6'-0" centers 


1 1/4 6'-0" centers 

1 1/2 8'-0" centers 


2 1/2 10'-0" centers 


3 1/2 11'-0" centers 


H. Groups of pipes at the same elevation or graded flow may be supported on trapeze 

hangers using Unistrut P-1000 channels with threaded rods and connected to inserts. 

Furnish pipe clamps to control spacing to span the outer surface of the insulation for 

pipes 4" and smaller and rollers for pipes 5" and larger. Spacing shall conform to pipe 

requiring shortest span. Anvil Powerstrut is an approved equal. 

I. Hangers for piping with insulation shall be large enough to encompass the insulation and 

the metal saddle. 

3.04 PIPE SLEEVES 

A. This contractor shall be responsible for coordinating the location and size with the 

general contractor of all openings that pertain to the phase of work that passes through 

walls, floors or partitions including field core drilled precast. All sleeves shall be 

fabricated of new material, cut square and reamed. 

B. Sleeves shall be 1/2" greater in inside diameter than the external diameter of the pipe 

passing through. Pipes specified to be insulated shall have sleeves large enough for 

through-going covering. 

C. Sleeves through partition walls shall be schedule #40 steel pipe extending through the 

full thickness of the wall and shall be flush with the finished surfaces. 

D. Sleeves through floor slabs in exposed areas (offices, etc.) shall be schedule #40 steel 

pipe and shall finish flush with the finished floor surface. 

E. Sleeves through floor slabs for concealed piping (in pipe chases, pipe spaces, within 

walls or partitions) shall be constructed on No. 22 gauge galvanized iron. Sleeves in 

floors shall extend 2" above floor. 

F. Sleeves through floor slabs concealed under cabinets, equipment and exposed pipes 

passing through floor slab in equipment rooms shall be schedule #40 steel pipe 

extending 2" above the finished floor. 

G. Seal the space between all sleeves (or openings) and pipe with fire retardant packing 

and install a 1" depth of fire retardant caulking compound flush with the top of the 

sleeves. Pipe insulation shall not be continued through fire rated construction. 





H. Generally, no sleeves will be required through slabs on grade. Sleeves shall be set and 

maintained in place by the contractor pertaining to the work during the progress of the 

work and during the pouring of the floor slabs or walls. 

I. Cutting of new floors will not be permitted without the consent of the architect/engineer. 

3.05 VALVE INSTALLATION 

A. Furnish and install all valves indicated on the drawings and specified in these 


B. All valves shall be easily accessible for maintenance. Provide access panels, if 

necessary. 

C. All valves of copper piping 2" and below shall be solder joint type. 

D. Install ball valves on all water lines to all individual equipment except those specified to 

be equipped with stop valves. 

E. Butterfly valves used for shutoff at pumps, equipment, etc. must be furnished with tapped 

lugs to keep valve in place when equipment is removed. Seat construction shall be 

Buna-N or Neoprene bonded permanently to a hard integral backing. 

F. Ball valves must have seals good for both pressure and vacuum service. 

G. All similar valves in the building shall be the same manufacturer. The manufacturer's 

name and pressure rating shall be stamped or inscribed on each valve. 

3.06 EQUIPMENT BASES AND SUPPORTS 

A. This Contractor shall furnish and install all bases and supports as shown on the drawings 

and as specified herein. 

1. All supports for air handling units, tanks and other miscellaneous mechanical 

equipment shall be furnished and installed. Note special details. 

2. Concrete pads and bases shall also be provided by this Contractor. Concrete 

work shall be performed by skilled workmen in the concrete trade. 

3.08 LUBRICATION 

A. At the time of installation, and before any equipment is operated, properly lubricate all 

items pertaining to the work in contract, according to manufacturer's recommendations. 

Prior to performance tests, provide all required lubrication services. Prepare a typed 

lubrication schedule to be framed in the equipment room for all items of equipment. 

Where special greases or oils are required, the contractor shall furnish to the owner, at 

any time of performance tests, a one year's supply of such special lubricants. 

B. Maintain all lubrication and gaskets during construction and assure that at the time of 

acceptance by the owner, all are in first class operating condition. 








PLUMBING SYSTEMS INSULATION 

PART 1 

GENERAL 

1.01 GENERAL 

A. The work covered by this specification consists of furnishing all labor, equipment, 

accessories and materials and in performing all operations necessary for the installation 

of insulation for the plumbing systems. 

B. Insulation shall be installed in a quality manner by skilled workers regularly engaged in 

this type of work. Insulation shall be Owens-Corning, Johns-Manville, CSG or Armstrong 

subject to the approval of the architect/engineer prior to installation. 

1.02 GENERAL INSULATION REQUIREMENTS 

A. All insulations shall have fire and smoke hazard ratings not exceeding the following 

unless otherwise specified: 

Flame Spread 25 

Smoke Developed 50 

B. Insulation on all cold surfaces shall be complete with vapor barrier jackets and shall be 

applied with a continuous unbroken vapor seal. Hangers, supports, anchors, etc., that 

are secured directly to cold surfaces must be adequately insulated and vapor sealed to 

prevent condensation. 

C. Provide support inserts or saddles at location where pipe insulation and hangers come in 

contact with each other. Inserts between the pipe and pipe hangers shall be constructed 

of material meeting required flame spread and smoke developed ratings of same 

thickness as the pipe insulation. Inserts shall be sealed with vapor barrier mastic. 

Saddles shall be constructed of 12" long galvanized steel installed between insulation 

and hanger. 

D. Ends of insulation shall be tapered and neatly finished with fabric. 

E. Inserts shall be installed in a manner to completely support the pipe and not crush the 

insulation or damage the vapor barrier. 

F. The precut pipe fitting insulation shall be applied to the fitting to make a snug fit of equal 

thickness against the adjoining pipe insulation. The fitting covers shall be secured by 

stapling and taping the ends to the adjoining pipe insulation. 

G. On cold water piping, all cover seam edges shall be additionally sealed with vapor barrier 

adhesive and ends wrapped with vapor barrier tape overlapping the adjacent jacket. 

H. Optional pipe fitting insulation for size 4" and smaller shall be to insulate with mineral 

fiber cement to a thickness of adjoining pipe insulation. 

HVAC UPGRADE PROJECT 220700 - 1 of 6 PLUMBING SYSTEMS INSULATION




I. Fittings over 4" shall be insulated with 3/4 lb. density Fiberglass blanket compressed to a 

thickness equal to adjoining pipe insulation or mitered pipe insulation segments or 

premolded fittings secured with 3-ply jute twine, Fiberglass tape or 18 gauge galvanized 

steel wire and finished with a smooth coat of mineral fiber cement. 

J. After the cement is dry, fittings shall be finished with a 4 oz. canvas or equal smoothly 

adhered with a suitable adhesive. 

K. Cold water fittings shall be sealed with vapor barrier mastic over the canvas. 

L. All jackets and end laps shall be sealed with Chicago Mastic 17-465 or equal applied to 

two surfaces or with self-sealing type lap system. 

PART 2 

PRODUCTS 

2.01 CODE I FIBERGLASS PIPE INSULATION 

A. The insulation shall be rated for an operating temperature of 850 degrees Fahrenheit. 

B. Owens-Corning One or Two-Piece Pipe Insulation 

1. Fiberglass 25 ASJ - All service jacket 

2. Fiberglass 25 ASJ - SSL - All service jacket 

C. Johns-Manville Flame Safe Pipe Insulation 

1. All purpose jacket - AP 

2. All purpose jacket - AP self-sealing lap system 

D. Knauf Fiberglass Pipe Insulation 

1. All service jacket 

2. All service jacket wit self-sealing lap 

2.02 CODE II ONE PIECE PVC INSULATED FITTING COVERS 

A. JM Uni-Fit 

B. Zeston 

C. Speed-Line 

D. Proto 

2.03 CODE III EXTERNAL RIGID FIBERGLASS BOARD INSULATION 

A. Owens-Corning 3 lb. density Fiberglass board 700 series with FRK foil reinforced facing. 

B. Certain-Teed/St. Gobain, 4.2 lb. density Fiberglass board, 1B-420 complying with 

Owens-Corning product specified above. 

PLUMBING SYSTEMS INSULATION 220700 - 2 of 6 HVAC UPGRADE PROJECT





C. Johns-Manville 3 lb. density Fiberglass board 800 series complying with Owens-Corning 

product specified above. 

D. Knauf, 3 lb. Density Fiberglass board with FSK foil reinforced facing complying with 


PART 3 

EXECUTION 

3.01 DOMESTIC PIPING SYSTEMS 

A. All piping in concealed and exposed areas shall be insulated with Fiberglass pipe 

insulation with all service jacket of grades mentioned in Article 2.01, Code I. Thickness 

shall be as follows: 

INSULATION THICKNESS 

Domestic 

Non-circu Circu Mains and Runouts 

Piping Temp Runouts 1" 2 1/2" 5" 8" 

System F. up to to to to and 

2" * 2" 4" 6" up 

Hot Water 170-180 1/2 1 1-1/2 2 2 

and 140-160 1/2 1/2 1 1-1/2 1 1/2 

recirc 100-130 1/2 1/2 1/2 1 1 

Cold water & 

hydronic 

make-up 40-55 1/2 1/2 1/2 ½ 1/2 

* = Runouts not exceeding twelve feet in length. 

** = Also applies to sump pump discharge piping. 

B. Fittings, valve bodies and flanges for pipe sizes 4" and smaller shall be finished with 

mineral fiber cement to a thickness of adjoining pipe insulation. Over 4" shall be 

insulated with 3/4 lb. density Fiberglass blanket compressed to a thickness equal to 

adjoining pipe insulation or mitered pipe insulation segments to premolded fittings 

secured with three-ply jute twine, Fiberglass tape or 18 gauge galvanized steel wire and 

finished with a smooth coat of mineral fiber cement. 

C. In place of method outlined in paragraph B, the contractor may use insulated fitting 

covers, Article 2.02, Code II as follows: 

1. The precut insulation shall be applied to the fitting to make a snug fit of equal 

thickness against the adjoining pipe insulation. The fitting covers shall be 

secured by stapling and taping the ends to the adjoining pipe insulation. 

2. On cold water piping, all cover seam edges shall be additionally sealed with 

vapor barrier adhesive and ends wrapped with vapor barrier tape overlapping the 

adjacent jacket. 





3.02 ROOF DRAIN PIPING 

A. All horizontal and the first 6'-0" of vertical rain leader pipes and vertical rain leader pipes 

located in inaccessible chases shall be insulated with 1" thick Fiberglass pipe insulation 

as specified for domestic water piping. 

1. Roof drain bodies shall be insulated with 3/4 lb. Fiberglass blanket compressed 

to a thickness equal to the adjoining pipe insulation secured with 3-ply jute twine, 

fiberglass tape or 18 gauge galvanized steel wire and finished with a one-coat 

mineral fiber cement. 

2. After the cement is dry, the fitting shall be finished with 4 oz. canvas embedded 

between two layers of vapor barrier mastic. 

3.03 EXPOSED PIPING UNDER LAVS 

A. Insulate with 1/2" thick foam tube insulation as listed for Code VIII material. Insulation 

shall be covered with 20 mil thick PVC jacketing as manufactured by Handi Lav-Guard 

(model #102G) or approved equal. 

3.04 PIPING SYSTEMS LOCATED IN THE WASH BAY 

A. Provide VentureClad 1577CW system or weatherproofing for protection of the insulation 

located in the Wash Bay. Jacketing system shall be white finish/color and shall be a 5 

ply self-adhesive material with zero permeability. 

B. Overlap tape joints in accordance with manufacturer’s recommendations. 

C. Other acceptable manufacturers are Polyguard or approved equal. 

3.05 COIL CONDENSATE DRAIN PIPING 

A. Air conditioning, coil condensate drain lines located indoors shall be insulated, as 

specified for domestic water piping. 

3.06 FOUNDATION SUMP PUMP DISCHARGE PIPING 

A. Insulate with 1/2" thick fiberglass pipe insulation as specified for domestic water piping. 

3.07 EQUIPMENT INSULATION 

A. Insulate domestic hot water storage tanks with 2" thick insulation as specified by Article 

2.05, Code V. 

B. Apply insulation over pins welded to the vessel. Provide tightly butted shiplapped and 

stapled joints. 

C. Pins and joints shall be covered with five inch wide pressure sensitive joint sealing tape 

matching the insulation jacket. 

3.08 HEAT TRACED PIPING 






A. Where noted on the plans, piping shall be insulated with 1” thick fiberglass pipe insulation 

as specified for domestic water piping. This will allow the Division 16 Contractor to 

provide electrical heat tape for these lines. Coordinate the installation with the Division 

16 Contractor. 

3.09 EXPOSED PIPING IN WASH BAY 

A. Provide VentureClad 1577CW system or weatherproofing for protection of the insulation 

located outdoors. Jacketing system shall be natural aluminum finish/color and shall be a 

5 ply self-adhesive material with zero permeability. 

B. Overlap tape joints in accordance with manufacturer’s recommendations. 






BLANK PAGE 







DOMESTIC BUILDING WATER SYSTEMS 

PART 1 

GENERAL 

1.01 GENERAL 

A. The building water supply shall be an underground service connection installed at a 

depth of seven (7) feet of cover extending to 5'-0" outside of the building. All water used 

shall be metered and piped to all plumbing fixtures, lawn and service faucets, and the 

domestic hot water system. 

PART 2 

WORK INCLUDED AND EXECUTION 

2.01 DOMESTIC WATER METER 

A. Provide water meter of size indicated on plan. 

B. Meter shall be provided by this contractor. This contractor shall purchase meter from 

local water utility. Meter shall be complete with remote gauge installed at location 

required by local water utility. 

2.02 INTERIOR DOMESTIC WATER PIPING INSTALLATION 

A. Piping systems within the building, including hot water and cold water piping, shall be 

installed as shown on the drawings and as specified herein. 

B. Consult manufacturer's data and the large scale details of rooms containing plumbing 

fixtures on the architectural drawings before roughing in piping. Plug or cap piping 

immediately after installation. 

1. All water piping shall be pitched 1" in 40' insofar as possible and shall be 

provided with drains at all low points consisting of a tee, nipple valve. Drains 

shall be located inaccessible locations. 

2. Reduction in size of horizontal water circulation piping shall be made with 

eccentric reducers with straight-side at top. 

3. Provisions for expansion shall be made in the piping with elbows, swing joints, 

etc. 

4. Minimum size of all water piping shall be 1/2" except for short stubs immediately 

at fixture. 

2.03 HOT WATER RECIRCULATION PUMPS 

A. Bell and Gossett, Taco or approved equal of size and capacity indicated on plan. 

B. Pump shall be of all bronze construction. 

HVAC UPGRADE PROJECT 221100 - 1 of 4 DOMESTIC BUILDING WATER SYSTEMS




2.04 MISCELLANEOUS SPECIALTIES 

A. Shock absorbers: Provide Josam, Wade, Smith or Zurn shock absorbers at all plumbing 

fixture groups sized in accordance with P.D.I. recommendations. 

2.05 TEMPERATURE REGULATING VALVES 

A. Valve series numbers indicated are as manufactured by Powers, Symmons or approved 

equal manufacturers are acceptable. 

B. Valves that serve eyewash stations shall be Model TA-300 rated for a flow capacity of .5- 

8 gpm with ½” inlets and a ½” outlet. 

PART 3 

EXECUTION 

3.01 DOMESTIC WATER METER 

A. Provide isolation valves and a valved bypass to allow servicing. 

3.02 INTERIOR DOMESTIC WATER PIPING INSTALLATION 

A. Piping systems within the building, including hot water and cold water piping, shall be 

installed as shown on the drawings and as specified herein. 

B. Consult manufacturer's data and the large scale details of rooms containing plumbing 

fixtures on the architectural drawings before roughing in piping. Plug or cap piping 

immediately after installation. 

1. All water piping shall be pitched 1" in 40' insofar as possible and shall be 

provided with drains at all low points consisting of a tee, nipple valve. Drains 

shall be located inaccessible locations. 

2. Reduction in size of horizontal water circulation piping shall be made with 

eccentric reducers with straight-side at top. 

3. Provisions for expansion shall be made in the piping with elbows, swing joints, 

etc. 

4. Minimum size of all water piping shall be 1/2" except for short stubs immediately 

at fixture. 

3.03 STERILIZATION OF WATER PIPING 

A. Upon completion of the cold, hot and recirculating hot water systems, this contractor shall 

sterilize these systems with chlorine before they are placed in operation. The amount of 

chlorine applied shall be such as to provide a dosage of not less than 50 parts per 

million. Following a contact period of not less than 24 hours, the heavily chlorinated 

water shall be flushed from the system with clean water until the residual chlorine content 

is not greater than 0.2 parts per million. All valves in water lines being sterilized shall be 

open and closed several times during the 24-hour period. 

1. All sterilization work shall be performed in a manner and with methods such as to 

meet the approval of the Board of Health and at this contractor's expense. 

DOMESTIC BUILDING WATER SYSTEMS 221100 - 2 of 4 HVAC UPGRADE PROJECT





3.04 DOMESTIC HOT WATER RECIRCULATION SYSTEMS 

A. Provide pump with isolation valves, balancing valve and strainer complete with pressure 

gauges. 

B. Provide the system with balancing valves and balance the system to provide recirculation 

system flow throughout the building. 

3.05 THERMOSTATIC MIXING VALVES 

A. Adjust and test valve for proper supply temperature leaving the valve. 


HVAC UPGRADE PROJECT 221100 - 3 of 4 DOMESTIC BUILDING WATER SYSTEMS




BLANK PAGE 

DOMESTIC BUILDING WATER SYSTEMS 221100 - 4 of 4 HVAC UPGRADE PROJECT






SOIL AND WASTE PIPING SYSTEMS 

PART 1 

REFERENCES 

1.01 GENERAL 

A. This section includes all labor, materials, equipment, skill and tools necessary to furnish 

and install a sanitary sewer service to 5'-0" outside of the building. Sanitary sewers shall 

be a continuous waste and vent system. 

PART 2 

WORK INCLUDED AND EXECUTION 

2.01 INTERIOR SOIL, WASTE AND VENT PIPING INSTALLATION 

A. 2" and smaller waste and vent piping shall be pitched 1/4" per foot minimum. 3" and 

larger waste and vent piping shall be pitched 1/8" per foot minimum. 

1. Underground piping must be laid on undisturbed or compacted soil. Joints in 

cast iron soil piping shall be installed in the best standard practice and as 

recommended by manufacturer. 

2.02 CLEANOUTS 

A. Full size cleanout plugs (to a maximum size of 4") shall be furnished and installed at the 

foot of all waste stacks and downspouts, in all waste and downspout piping not over 50 

feet apart for 3" or less and 100 feet for 4" and larger, at all 90 degree turns in mains, 

where the waste and downspout piping leaves the building, at all points shown on the 

drawings, and where necessary to permit the entire system to be rodded out easily. All 

Cleanouts shall be located in easily accessible positions. 

1. Cleanout covers shall be provided as follows: 

a. Finished floors with asphalt, vinyl, rubber or other composition tile – 

Gasketed ABS plug cleanout with nickel bronze frame and recessed 

cover. Josam 56010-12 

b. Unfinished floors and traffic areas – Gasketed ABS plug cleanout with 

cast iron frame and cover. Josam 56050 

c. Finished walls and ceilings - Provide threaded bronze plug with seating 

flanges and four (4) square lugs for plug removal. Install plug with lead 

gasket. Provide nickel bronze square frame and cover with minimum 

opening size of 6" x 6". Josam 58640. 

d. Carpet areas - Provide Josam 56010-14 

B. Cleanouts by Zurn, Wade or Jay R. Smith may be used. Submit shop drawings for 

approval. 

HVAC UPGRADE PROJECT 221300 - 1 of 4 SOIL & WASTE SYSTEMS




2.03 FLOOR DRAINS AND FLOOR SINKS 

A. Furnish and install floor drains and floor sinks as hereinafter specified and located where 

indicated on the drawings. Deep seal "P" traps with a minimum water seal of three (3) 

inches shall be used on all floor drains and floor sinks specified without an integral trap 

unless noted otherwise. The strainers on floor drains and floor sinks shall have a free 

area of not less than 150% of the area of the drain outlet pipe. All areas except 

equipment rooms shall be considered finished areas. 

B. Floor drains and floor sinks shall be furnished as follows: 

1. Floor drains on grade 

a. Finished areas 

1) Body - Coated cast iron, bottom caulked or no-hub outlet, 

drainage flange and weepholes. 

2) Strainer - 6" round, threaded adjustable height with satin nickel 

finish and swing check type backwater valve. 

3) Manufacturers - Josam 30000-6AJ 

Smith 2005-6V 

Zurn ZN-415-6BV, Type B Strainer 

b. Equipment rooms 

1) Body - Coated cast iron, bottom caulked or no-hub outlet, 

drainage flange, weepholes and Josam 67100A backwater 

valve, with ball-float and elastomer seat. 

2) Strainer - 9" round, (cast iron, medium duty top). 

3) Manufacturers - Josam 32100 

Smith 2110 

Zurn Z-507, Type N Strainer 

2. Floor drains above grade 

a. Finished areas 

1) Body - Coated cast iron, bottom caulked or no-hub outlets, 

drainage flange, weepholes, flashing collar. 

2) Strainer - 6” round, threaded adjustable height, satin nickel 

finish. 

3) Manufacturers - Josam 30000-6A 

Smith 2005-6A 

Zurn ZN-415-7B 

b. Equipment rooms 

1) Body - Coated cast iron, bottom caulked or no-hub outlets, 

drainage flange, weepholes, flashing collar. 

2) Strainer - 9” round, extra heavy duty, cast iron, loose set, antitilting. 

3) Manufacturers - Josam 36000 

Smith 2120 

Zurn Z-508 

C. Area Drains: Area drains shall be without an integral p-trap for compliance with code. 

Provide Josam 32330 Series drains with 12 5/8” diameter top with 7” deep by 8” diameter 

sediment bucket. Provide stainless steel mesh bucket liner. Also provide cast iron 

undergrate and satin finish bronze top. 

SOIL & WASTE SYSTEMS 221300 - 2 of 4 HVAC UPGRADE PROJECT





E. Equivalent drains of Josam, Zurn, Jay R. Smith and Wade will be accepted. Submit shop 

drawings for approval. 

2.04 ROOF JACKETS 

A. Vent stacks from sewer, soil, waste and drain pipes shall be extended at least 12" above 

the roof and shall be encased in galvanized iron frost proof jackets, Moore No. 1, having 

an air space of at least 1" between the outside surface of the pipe and the inside surface 

of the frost jacket. The top of the frost jacket shall be designed to permit the insertion 

therein of a testing plug of such form that it can be readily seen until removed and said 

plug shall be removed at once after a final inspection has been made an approved. 

2.05 TRAPS 

A. Running traps, "P" traps or drum traps, as required, shall be provided in the drain 

connection from each fixture and piece of equipment requiring connection to the drainage 

system, except where inflammable waste trap is indicated as being required. Traps shall 

conform to the requirements of the Plumbing Code. 

B. Inflammable waste trap 

1. 70 cubic feet retention of 3/16" thick welded black steel with outside surfaces 

covered with cold tar epoxy complete with Neenah R-6461GH, 24 inch diameter 

cast iron manhole frame and gastight, bolted lid suitable for vehicular traffic. 

C. Grease trap 

1. Josam, 60100A series coated cast iron on floor type with cascade bottom, 

removable baffles, gasketed cover and flow control fitting. 

D. Plaster traps shall be Josam, 61040 series top access on floor type of coated cast iron 

construction, gasketed cover and removable galvanized steel basket with bronze 

screens. Other acceptable manufacturers are Zurn, Jay R. Smith, Wade or approved 

equal. 

2.06 DRAIN AND CLEANOUT FLASHING 

A. Provide drains and cleanouts located above grade with chloraloy polyethylene laminated 

flashing or 4 lb. per square foot lead of 32" x 32" minimum dimension. 


HVAC UPGRADE PROJECT 221300 - 3 of 4 SOIL & WASTE SYSTEMS




BLANK PAGE 

SOIL & WASTE SYSTEMS 221300 - 4 of 4 HVAC UPGRADE PROJECT






PLUMBING FIXTURES 

PART 1 

GENERAL 

1.01 SCOPE 

A. Provide and install the plumbing fixtures listed herein and/or shown on the drawings. Any 

fixtures specified or shown as being furnished by others shall be roughed-in and final 

connection by the mechanical contractor. 

PART 2 

MATERIALS AND INSTALLATION 

2.01 MANUFACTURERS 

A. Specific fixtures are taken mainly from the American Standard catalog to designate type 

of fixtures desired. Kohler, Crane and Elkay fixtures using brassware listed by Fixture 

Mfr., Chicago Faucet Co. of similar type and grade as that listed may be Sloan or Zurn. 

Toilet seats shall be Olsonite or Beneke. 

2.02 FINISH OR TRIMMINGS 

A. Exposed flush, waste and supply pipes at the fixtures shall be chromium plated. Water 

lines to all individual fixtures where exposed shall be equipped with high grade loose key 

chromium brass stop valves. Each individual fixture shall be provided with stop valve on 

the supply line. 

B. Caulk and seal fixtures with white silicone based caulking compound wherever they 

come in contact with general construction materials. 

C. Fixture stop valves shall be Chicago 1025 CP angle type with slow compression 

cartridge, of chrome polished construction complete with escutcheon. 

2.03 FIXTURE SUPPORTS 

A. Provide and install all back or side support anchor brackets, braces and concealed 

hangers as necessary to support each plumbing fixture. Concealed hangers for 

lavatories, urinals and similar fixtures shall be provided with carrier type fastening 

devices to securely anchor fixtures to floor. 

B. Provide wall hung water closets with chair carriers and fittings. In general, all fittings are 

vertical or horizontal "adjustable" type but when there are space limitations, vertical nonadjustable 

types can be used with the approval of the architect/engineer. All carriers are 

to have adjustable foot supports. Provide vandal-proof trim for installation in institutions. 

Carriers to be horizontal or vertical. Monolithic or thinline as required to meet job 

conditions. 

HVAC UPGRADE PROJECT 224200 – 1 of 4 PLUMBING FIXTURES




C. Carriers for other fixtures shall be as follows: 

1. Josam, 17100 series for single wall hung lavatories. 

2. Josam, 17105 series for back to back wall hung lavatories. 

3. Josam, 17720 series for service sinks arranged for exposed supports. 

4. Josam, 17810 series for wall hung urinals. 

5. Josam, 17900 series for single electric water coolers. 

6. Josam, 17905 series for dual height electric water coolers. 

D. Carriers shall be as manufactured by Josam. Equal units as manufactured by Zurn, 

Wade, Smith or Blade will be acceptable. 

2.04 CLEANING 

A. After fixtures and trim are installed, place suitable guards on fixtures and trim to 

prevent use and protect from damage, paint and plaster during construction. 

Cleanliness of fixtures shall be maintained until areas are accepted by owner. 

2.05 SHOP DRAWINGS 

A. The contractor shall submit eight (8) portfolios showing fixtures and trim. The portfolios 

shall be set up in order of fixture specified. 

2.06 FIXTURE MOUNTING HEIGHTS 

A. All fixture mounting heights shall comply with the applicable regulations and codes. 

FIXTURE MOUNTING HEIGHT 

Water closet - regular 15" (with seat 16") 

Water closet - handicapped 18" (with seat 19") 

Urinal - regular 

25" to top of rim 

Urinal Handicapped 

17" to top of rim 

Lavatory - regular 

32" top, 26" clearance below 

Lavatory handicapped 

29" Clearance below 

Lavatory - counter 

Verify arch. detail 

Electric water cooler - regular 42” to bubbler outlet 

Electric water cooler – handicapped 36” to bubbler outlet 

2.07 PLUMBING FIXTURE SCHEDULE 

A. The fixtures listed herein refer to fixture numbers on the drawings unless listed otherwise, 

all type numbers are American Standard. 

UR URINAL 

Remove and reinstall existing fixtures as indicated on the plans. Provide new trim. Trim 

shall consist of 1-1/4" top inlet, 2" threaded outlet, Sloan Royal 8180-1.0 optima plus hard 

wired 1.0 GPF hands free flush valves with screwdriver angle stops, vacuum breaker, 

and wall and spud flanges. Install at ADA compliant height where ADA is noted on plans. 

Provide control transformers and low voltage wiring from transformers as required for 

complete operating systems. 

PLUMBING FIXTURES 224200 – 2 of 4 HVAC UPGRADE PROJECT




LAV WALL HUNG LAVATORIES 

Remove and reinstall existing fixtures as indicated on the plans. Provide new trim. 

Provide new hands free faucets shall be Chicago 680-4 hard wired type with an internal 

mixing valve, traditional styling and 2.0 gpm laminar flow fitting. Fixture shall be 

complete with strainer drain and 1 1/4" tail piece. Provide flexible supply pipes with loose 

key stops, "P" trap with cleanout plug, waste to wall and escutcheons. 

ADA Fixtures: Insulate supply and waste piping as specified in Section 22 0700. The 

complete installation shall be ADA compliant. 

Carriers: Fixtures shall also be provided with new concealed arm carriers with floor 

anchored supports. 

Wiring: Provide control transformers and low voltage wiring from transformers as 

required for complete operating systems. 

EWC ELECTRIC WATER COOLERS –DUAL HEIGHT-HANDICAPPED 

Elkay Model LZTL-8 wall hung barrier free (wheelchair usage) dual height electric water 

coolers with one piece backsplashes and basins polished to a satin finish and stainless 

steel flexi-guard bubblers. Units shall have the capacity to cool 8 gallons of water from 

80 degrees F. to 50 degrees F. with 90 degrees F ambient. Units shall include air cooled 

condensers, hermetic refrigeration systems with 1/5 HP motors, 120/1/60 with overload 

protection evaporator and related piping all contained in an angle iron frame. Water 

supplis shall include shut-off valves. Entire units shall be stainless steel with a polished 

finish. The complete installation shall be ADA compliant. Hazardous locations: Electrical 

equipment shall be located in the higher cooler to ensure that all electrical components 

are a minimum of 18” above the floor. 

WC WATER CLOSETS 

Remove and reinstall fixtures as noted on the plans., Sloan Royal 180-1.5 hands free 

hard wired sensor operated optima flush valve with screwdriver angle stops, vacuum 

breaker, seal bumper, wall and spud flanges. The flush valve construction shall utilize 

synthetic chemical resistant rubber components and a filtered bypass. 

Seats: Provide Olsonite 95SS.white open front seats, less cover of posturemold design of 

institutional grade solid plastic construction with stainless steel self sustaining hinges. 

Carriers: Provide new carriers for fixtures. Four carrier bolts shall be cemented in place 

at the wall and the installation shall be approved by the University prior to applying wall 

finish. 

Wiring: Provide control transformers and low voltage wiring from transformers as 

required for complete operating systems. 

EW EMERGENCY EYEWASH (FLOOR MOUNTED) 

Haws, Model 7001 pedestal mounted with floor flange eye wash unit with “omni flo” wraparound 

continuous spray outlet. Head cover shall be bright yellow ABS plastic. Receptor 

shall be safety green ABS plastic. Activation shall be either by stainless steel hand push 

flag or foot pedal that shall open stay open chrome plated brass ball valve. This 

Contractor shall provide piping complete with thermostatic mixing valve (see Section 22 

1100). The complete installation shall be in accordance with code and recognized ANSI 

Standards. Provide testing to verify operation within the requirements of ANSI 

Standards. Coordinate operation and testing requirements with the Owner. The drain 

opening shall be directed to the floor drain near the eyewash. 





2.08 EQUIPMENT FURNISHED BY OTHERS (F.B.O.) 

A. This contractor shall provide rough-ins and final connections to all equipment furnished 

and installed by others. See schedule on drawings for pipe sizes. 








HVAC GENERAL PROVISIONS 

PART 1 

REFERENCE 

1.01 GENERAL 



B. All reference to mechanical work or Division 23 in other Divisions of the work are hereby 


C. Division 23 work shall include all mechanical work referenced in other Divisions of the 


D. If any statements contained in Division 23 that should conflict with the conditions of the 






F. Where words "mechanical contract(s)", "mechanical contractor", "mechanical" or 

"mechanical work" appear in contract documents, that shall be taken to mean or refer to 

contracts or subcontracts for HVAC work. 











deviations will be permitted to allow prior approved manufactures specified to bid on their 

nearest stock equipment providing that prior approved equipment equals or exceeds the 

basic performance conditions indicated. Contractor making substitution with prior 

approved products shall pay any increments costs incurred; contractor shall bear all 

costs of modifying prior approved product to fit conditions shown or modifying building or 

other systems to receive product. 

HVAC UPGRADE PROJECT 230100 - 1 of 10 HVAC GENERAL PROVISIONS

















N. Where the documents refer to “approved equal” it shall mean “prior approved equal”. 

Manufacturers must be approved prior to the closing of the bids to be allowed on the 

project. Manufacturers must be indicated by name in the project manual, on the 

drawings or in the Addenda to be allowed on the project. 













D. The only mechanical work not included shall be those items explicitly indicated otherwise. 




1.03 EXAMINATION AND LOCATION OF SITE 

A. Visit the building site and become familiar with all the existing conditions before 

submitting bid. Failure to visit site will in no way relieve the contractor from necessity of 

furnishing any material or performing any work that may be required to complete the work 

in accordance with the drawings and specifications which could be only determined by 

visiting the site. 

HVAC GENERAL PROVISIONS 230100 - 2 of 10 HVAC UPGRADE PROJECT
















A. Requirements Division 00 Conditions of the Contract and Division 01 General 






































Local Codes 



























contract. Fees shall also include Plan Review Fees required by the State. 



C. Fees shall include gas utility service extension charges. 

D. State of Minnesota Plan Review Fees will be paid by St. Cloud State University. 









Valves 



Insulation Materials 


Heat Pump Units 

Energy Recovery Unit 

Ductwork System and Specialties 

Volume Dampers 

Fire Dampers 

Unit Heaters 

Grilles, Diffusers and Registers. 

Automatic Temperature Controls 

Fans 




F. Submit ¼” scale ductwork drawings to the engineer for review prior to fabrication of any 

ductwork. Ductwork drawings shall indicate ceiling, structural and ductwork elevations. 

The ductwork drawings shall also indicate light fixture locations and piping systems for 

coordination purposes. 

PART 2 

PRODUCTS 


PART 3 

EXECUTION 



etc., which may be required for the work installed under this division shall be done by 















in advance. 





3.02 TEMPORARY HEAT 


General Requirements for requirements regarding temporary heat, etc. Each contractor 

shall provide for these requirements. 





B. Break down equipment as required to allow entry of equipment into the building. Attic 

equipment is intended to be brought into the Attic through the Elevator Hoistway. 


































D. The heating contractor shall thoroughly clean all equipment and covers, traps, strainers, 

etc., leaving every part in a first class condition. 

E. The ventilation contractor shall clean air surfaces of all coils, fan housings, fan wheels, 

replace air filters with new filters if replaceable type, clean "cleanable" type air filters, 

leaving the installation in a first class condition. 


A. The mechanical contractor shall be responsible for and provide the identification and 

labeling of all equipment and piping insulated or uninsulated. All identification shall 

conform to the requirements of the International Mechanical Code and as follows: 









maintenance. 






space. 


number. For example, air handling units shall be identified as AHU-1 and AHU- 

2. 





3.07 PAINTING 



1. All mechanical equipment shall have a prime coat only unless specified with a 

factory finish coat of paint. 

2. All equipment specified with a factory finish coat of paint shall be repainted to the 

satisfaction of the engineer by the contractor if so directed by the engineer due to 

damage during shipment and/or installation. 



4. This contractor shall paint ductwork and framing exposed to view (from standing 

on floor or on grade) behind louvers, grilles, registers and diffusers with two 

coats of flat black paint. 

5. Gas Piping located outdoors and in the Wash Bay shall be painted with two coats 

of Rust-Oleum paint of battleship grey color. Provide complete primer coverage 

prior to application of finish coats. 






C. Electrical Contractor will furnish all disconnects and starters as required for all motors, 


D. Unless indicated otherwise, Electrical Contractor will mount the disconnects and starters 

and will wire through the disconnect, through the starter and make connections to motors 

unless mounted and wired as part of package equipment. 


proper operation of all mechanical equipment shall be furnished and installed complete 

by this contractor. 

F. Motor control wiring done by this contractor shall conform to the requirements of 














premium high efficiency type. Motors shall be labeled to comply with NEMA Standard 

MG1-12.53 with the nominal efficiency printed on the nameplate. Efficiency shall be 

based on dynamometer testing per IEEE, Standard 112, Method B. Motors shall be 

equivalent to Delco E2, Ground-Century, E-Plus, G.E. Energy Saver, Reliance XE or 

Westinghouse Lifeline Tee II. 


requirements of the electrical Specifications and the latest edition of the National Electric 

Code. 

3.09 TRAINING 









3.10 SERVICE INTERRUPTIONS 

A. Service interruptions shall be coordinated with and approved by the Owner. 

B. Service interruptions shall be limited to unoccupied hours of operation. 

C. This Article shall apply to the following services: 

1. Domestic Water 

2. Hydronic Hot and Chilled Water 

3. Fire Protection Water 

3.11 REMOVAL WORK 

A. Remove existing piping, ductwork, controls and equipment as required to allow 

installation of new systems shown on the plans. 

B. Turn over any existing materials or equipment that the Owner deems suitable for 

salvage. All other materials and equipment shall be removed and disposed of at the 

expense of this Contractor. 

C. Connect to existing piping systems as shown on the plans. 






BLANK PAGE 







HVAC ALTERNATES 

PART 1 

REFERENCE 

1.01 GENERAL 



1.02 ALTERNATIVE BIDS 

A. Alternative Bid No. HV-1: State the amount to be deducted from the base bid for reusing 

the existing reheat coils and installing retrofit type VAV boxes instead of VAV boxes with 

integral hydronic hot water coils. New booster coil control valves shall still be provided as 

part of the alternate. 

B. Alternative Bid No. HV-2: State the amount to be deducted from the base bid for omitting 

the run-around heat recovery system and associated piping, coils and controls shown on 

the plans. 


HVAC UPGRADE PROJECT 230101 - 1 of 2 HVAC ALTERNATES




BLANK PAGE 

HVAC ALTERNATES 230101 - 2 of 2 HVAC UPGRADE PROJECT






HVAC BASIC PRODUCTS AND METHODS 

PART 1 

GENERAL 

1.01 QUALIFICATIONS 

A. Materials are listed by manufacturer, product type and number which indicates the 

quality, class and type of materials required. 

B. The methods describe the general installation minimum acceptable requirements and 

system operation functions. 

C. Materials and system identification are indicated on the drawings by reference to the 

symbol key thereon. 

D. This Section of the Work shall apply to all Sections of Division 23 scope of work. 

Therefore, this Section applies to sheet metal work in addition to piping work. 

1.02 PRODUCT DELIVERY, STORAGE AND HANDLING 

A. Materials selected must meet delivery requirements for this project that will allow 

installation within the project completion schedule. 

B. The storage and handling of materials shall be coordinated with all construction trades so 

as not to block site access and so as to allow efficient handling of materials as used. The 

materials shall be protected as required to maintain standards acceptable within the 

industry. 

PART 2 

PRODUCTS 

2.01 PIPE AND FITTINGS 

A. Approved product sources: 

MATERIALS MANUFACTURER 

Steel pipe, steel Youngstown, Wheeling, 

tube and fittings National Tube, Grinnell, 

Tube Turn, Bonney, Crane 

Copper pipe and 

fittings 

Chase Brass and Copper, 

Reading Tube, Mueller, 

Bundy, Nibco 

HVAC UPGRADE PROJECT 230500 - 1 of 8 HVAC BASIC PRODUCTS & METHODS




Valves 

Apollo, Nibco, Red & White, Watts and Milwaukee 

B. Furnish and install where shown on the drawings pipe, pipe nipples and fittings of type 

and material listed below as required to connect fixtures and equipment. 

C. The following types of pipe are acceptable only if they meet State and local codes and 

ordinances. Other types of pipes that meet codes and ordinances will be considered. 

D. Condensate drain. 

1. See Section 22 05 00 for condensate drain piping requirements. 

E. Hydronic piping systems (above floor). 

1. Pipe: Schedule 40 black steel, ASTM A53B. 

Fittings: 2" and smaller shall be Cast Iron, 125 lb screwed ANSI B16.12. 2 1/2" 

and larger shall be schedule 40, black steel, welded or 150 lb. flanges. Grooved 

fittings as manufactured by Victaulic or Anvil-Gruvlock will also be acceptable 

provided they use rigid lock type fittings. 

2. Pipe: Copper, Type L hard temper, ASTM B88. 

Fittings: Cast bronze or wrought copper. 

Solder: 95/5. 

Pro-Press fittings will also be acceptable. 

2.02 VALVES 

A. Valves shall be furnished and installed at each plumbing fixture, piece of equipment, and 

each heating or refrigeration group, and at points required for adequate service and 

drainage of the system. Acceptable manufacturers are listed in Article 2.01, paragraph 

A. 

B. All valves must be located in accessible locations or in "Milcor" amply sized recessed 

which shall be supplied by the mechanical contractor to the general contractor who will 

install them. Panels shall have trim finish to match adjacent materials and be provided 

with key lock hardware. 

C. Check valves located in the vertical position or located on the discharge side of hydronic 

pumps shall be of the non-slam type. 

E. Gate valves will not be allowed for water systems. Ball valves shall be used for water 

systems. 

F. Valve Schedule. 

1. The listed valves shall be used in systems as per following usage schedule. 

Hydronic systems-C. 

2. Shut Off Valves Size Pressure No. Usage 




soldered Apollo 1/4"-4" 150 PSI 82-200 C 

HVAC BASIC PRODUCTS & METHODS 230500 - 2 of 8 HVAC UPGRADE PROJECT





3. Check Valves 

Check, iron 

body, flanged or 

wafer, non-slam, 

Check, semi-steel, 

bronze trim, 

flanged, silent, 

Size Pressure No. Usage 

4"&up 125#WSP G-931 C 

1"&up 125#WSP 329 C 

5. Balancing Valves Size Pressure No. Usage 

Balancing valve, 

semi-steel eccentric 

plug with 

adjustable collar 

& lever handle, 

1 1/4"-4" 150#WOG 101 C 


semi-steel eccentric 

plug with 

Adjustable stop 

collar & lever 

handle, 5"-6" 150#WOG 118 C 


DeZurik semi-steel 

eccentric plug with 

adjustable stop 

collar & worm gear 

actuator 8"&up 150#WOG 118 C 

Bronze cocks- 

Bronze cocks- 

1/2"-2" 150#WOG 955 C 

2 1/2"-4" 100#WOG 955 C 

Butterfly, HIB 

infinite trottling 

handle with balance 

stop, Bubble. tight 

2 1/2"-6" 150 PSI A C 

Butterfly, worm 

gear operator 

with indicator, Bubble tight 

8"&up 150 PSI A C 





2.03 UNIONS AND DIELECTRIC FITTINGS 

A. Use universal insulating unions or dielectric coupling connections at all points where 

dissimilar metals are joined. Epco is approved equal. 

B. Unions on piping 2" and smaller shall be an approved ground joint type for 150 pounds 

working pressure. Unions and flanges on copper tubing shall be of solder joint type. 

C. Unions shall be provided in all pipe connections to equipment and where necessary to 

facilitate removal and/or repair of equipment. 

PART 3 

EXECUTION 

3.01 PIPING SYSTEMS INSTALLATION AND METHODS 

A. This contractor shall consult and cooperate fully with other contractors so as to avoid 

interference with ducts, electrical installation, etc. Pipe fitter shall consult engineer before 

installing any pipe lines which will reduce the proper headroom in any way. Piping shall 

be run as shown on the drawings but engineer reserves the right to make minor changes, 

without extra charge, to avoid interference. Except for piping running in crawl spaces, 

tunnels, equipment rooms and unfinished areas, all piping shall be concealed unless 

specifically indicated otherwise on drawings or directed by engineer. 

B. All water piping shall be pitched to drain and vent points 1" in 40' wherever possible. 

Provide 3/4" hose bibb drain at end of each main and elsewhere as indicated on 

drawings. 

C. Consult manufacturer's data and the large scale architectural details of rooms containing 

plumbing fixtures before roughing in piping. Plug or cap piping immediately after 

installation. Waste stuffed in open ends of piping shall be removed before installation of 

next length of pipe. 

D. The piping system shall be installed substantially as shown on the drawings. The exact 

position of pipes cannot be scaled from the drawings, but they shall be placed to avoid 

interference with other work. Should it be necessary to make minor changes in location 

of any pipe for its proper installation and operation, or to avoid conflict with other trades, it 

shall be done by this contractor without extra charge. 

E. All piping in finished rooms shall be concealed in partitions, furred spaces or suspended 

ceilings wherever possible. All piping shall be installed so as to present a neat 

appearance and the overhead piping shall be arranged to provide for maximum head 

room. There shall be absolutely no pipe cutting or threading on concrete floor areas. 

3.02 EXCAVATION, TRENCHING AND BACKFILLING. 

A. All excavation and backfilling for pipelines and underground ductwork inside and outside 

the building shall be done by contractors pertaining to their work. 

B. Trenches for all underground pipelines shall be excavated to the required depths. In no 

case shall the pipe trench be excavated by machinery less than 6" above the final trench 

bottom. The width of the trench shall be such as to give clearance of not less than 6" on 

each side of the pipe. The banks of the trenches shall be dug to the soil's angle of 

repose and where required, shall be properly sheeted and braced. The remaining 6" to 






the final trench bottom shall be excavated by hand just before the laying of the pipe so 

that the bottom of the trench is properly formed to give uniform support and necessary 

grade to the piping with proper bearing on undisturbed earth. Where piping would 

otherwise bear on fill, disturbed earth, or unstable soil, the contractor shall provide 

poured concrete piers to support the pipe at correct elevation of each joint, and the base 

of each pier shall bear upon stable, undisturbed earth. Bell holes shall be excavated so 

that pipe will rest on solid ground for its entire length. 

C. Where existing conduits, sewers, drains, piping, manholes, catch basins and other 

structures are encountered, they shall be carefully supported and protected from injury. 

In case of injury, they shall be restored to original condition under this contract without 

additional compensation. 

D. Keep the excavation free of water at all times with the provision of dams or other 

structures as required and necessary and provide all necessary pumping and bailing. 

E. The spaces between the pipe and sides of the trench shall be filled by hand and 

compacted and tamped in successive layers approximately 6" in depth when compacted 

up to a level not less than 16" above the top of the pipe. The remainder of the trench or 

excavation shall be compacted and tamped in successive layers approximately 6" in 

depth when compacted. The fill material shall be clean and free from debris, clay, 

topsoil, boulders or other such elements and shall be as approved by the 

architect/engineer. Each layer shall be kept level and smooth before the succeeding 

layer is placed and each layer shall be thoroughly compacted by puddling and/or 

mechanical tamping over its entire surface until there is no loss of elevation. Compaction 

under paving, walks and structures shall be minimum 95% Modified Proctor Density. 

This contractor shall arrange for a laboratory to test the fill for compaction at locations 

indicated by the architect/engineer. The results of the tests shall be submitted to the 

architect/engineer for approval before the pouring of any slabs or surfacing in such 

areas. 

F. All excavated materials not required for fill or backfill shall be disposed of or removed 

from the site by this contractor. 

3.03 PIPE HANGERS, INSERTS AND SUPPORTS 

A. Furnish and install required pipe hangers and supports of the various types specified 

herein or detailed on the drawings, with inserts, beam clamps, sockets, bolts, clips or 

rods to complete all hangers and supports. No chain, wire, strap or perforated strap will 

be used. Hangers of Anvil International, Inc. manufacture are specified, but hangers of 

Fee and Mason or Elcen which comply to the specifications will be accepted. 

B. Piping suspended from construction above shall be hung from Anvil Fig. 152 to 730 lb. 

load and 282 up to 1140 lb. loads on concrete construction, Fig. 133 I-beam clamps on 

bar joist construction, Fig. 217 type 3 Simplex side I-beam clamp on steel beams, and 

Fig. 202 side beam bracket on wood construction. The Fig. 202 bracket must be 

attached with through going bolts. Six inch and larger piping shall be supported from two 

or more bar joists. 

C. Hangers for pipes 1\2" and smaller shall be Anvil split ring hanger Fig. 108. Hangers for 

3/4" and larger shall be Anvil wrought clevis hanger Fig. 260 or 65. All hangers to be 

complete with sockets, rods, turnbuckles, nuts, etc. 

D. Hangers for copper piping shall be Anvil CT-69 adjustable wrought pip ring with copper 

plated finish in lieu of specified above. 





E. Vertical piping shall be supported at each floor with Anvil riser clamp Fig. 261. Vertical 

copper piping shall be supported at each floor by clamps placed under coupling installed 

in the pipe. 

F. The following rod sizes shall be minimum permissible for pipe hangers. 


Hanger Rod Dia. - Inches 

up to 2 3/8 

2 1/2 to 3 1/2 1/2 

4 to 5 5/8 

6 3/4 

8 to 12 7/8 

14 & up (within loading limits) 1 

Trapeze hanger rods * 

* As required to carry weight of trapeze channel, span of piping with contents, insulation 

and supports plus a 200 pound live load. Loading not to exceed 4000 PSI on hanger 

rods. 

G. The following support intervals shall be the maximum permissible, but may be closer if 

necessary for proper support. Whenever pipe run changes direction, two hangers shall 

be used. 

1. Maximum distance between supports for steel piping. 


Spacing of Hangers 

1/2 5'-0" centers 

3/4 6'-0" centers 


1 1/2 9'-0" centers 


2 1/2 11'-0" centers 


3 1/2 13'-0" centers 





2. Maximum distance between supports for copper tubing. 

Pipe Sizes - Inches Spacing of Hangers 

1/2 5'-0" centers 

3/4 6'-0" centers 


1 1/4 7'-0" centers 

1 1/2 8'-0" centers 


2 1/2 10'-0" centers 


3 1/2 11'-0" centers 


H. Groups of pipes at the same elevation or graded flow may be supported on trapeze 

hangers using Unistrut P-1000 channels with threaded rods and connected to inserts. 

Furnish pipe clamps to control spacing to span the outer surface of the insulation for 

pipes 4" and smaller and rollers for pipes 5" and larger. Spacing shall conform to pipe 

requiring shortest span. Anvil Powerstrut is an approved equal. 






I. Hangers for piping with insulation shall be large enough to encompass the insulation and 

the metal saddle. 

3.04 PIPE SLEEVES 



walls, floors or partitions including field core drilled precast. All sleeves shall be 

fabricated of new material, cut square and reamed. 

B. Sleeves shall be 1/2" greater in inside diameter than the external diameter of the pipe 

passing through. Pipes specified to be insulated shall have sleeves large enough for 

through-going covering. 

C. Sleeves through partition walls shall be schedule #40 steel pipe extending through the 

full thickness of the wall and shall be flush with the finished surfaces. 

D. Sleeves through floor slabs in exposed areas (offices, etc.) shall be schedule #40 steel 

pipe and shall finish flush with the finished floor surface. 

E. Sleeves through floor slabs for concealed piping (in pipe chases, pipe spaces, within 

walls or partitions) shall be constructed on No. 22 gauge galvanized iron. Sleeves in 

floors shall extend 2" above floor. 

F. Sleeves through floor slabs concealed under cabinets, equipment and exposed pipes 

passing through floor slab in equipment rooms shall be schedule #40 steel pipe 

extending 2" above the finished floor. 

G. Seal the space between all sleeves (or openings) and pipe with fire retardant packing 

and install a 1" depth of fire retardant caulking compound flush with the top of the 

sleeves. Pipe insulation shall not be continued through fire rated construction. 

H. Generally, no sleeves will be required through slabs on grade. Sleeves shall be set and 

maintained in place by the contractor pertaining to the work during the progress of the 

work and during the pouring of the floor slabs or walls. 

I. Cutting of new floors will not be permitted without the consent of the architect/engineer. 

3.05 WELDING 

A. Welding requirements where called for shall be that all joints between sections of pipe 

and between pipe and fittings 1 1/2" and larger may be fusion welded. All changes in 

direction and insertions of lines shall be made with welding fittings except as otherwise 

specifically permitted hereinafter. Mitering of pipe to form elbow, notching straight runs to 

form tees, or any similar construction will not be permitted. Welding fittings shall be Tube 

Turn, Bonney Weldolets, Anvil Anvilets or equal and approved. Shop fabricated welded 

headers will be acceptable. 

3.06 VALVE INSTALLATION 

A. Furnish and install all valves indicated on the drawings and specified in these 


B. All valves shall be easily accessible for maintenance. Provide access panels, if 

necessary. 





C. All gate valves shall be of the rising stem type. 

D. All valves of copper piping 2" and below shall be solder joint type. 

E. Install ball valves on all water lines to all individual equipment except those specified to 

be equipped with stop valves. 

F. Butterfly valves used for shutoff at pumps, equipment, etc. must be furnished with tapped 

lugs to keep valve in place when equipment is removed. Seat construction shall be 

Buna-N or Neoprene bonded permanently to a hard integral backing. 

G. Ball valves must have seals good for both pressure and vacuum service. 

H. All similar valves in the building shall be the same manufacturer. The manufacturer's 

name and pressure rating shall be stamped or inscribed on each valve. 

3.07 EQUIPMENT BASES AND SUPPORTS 

A. This Contractor shall furnish and install all bases and supports as shown on the drawings 

and as specified herein. 

1. All supports for air handling units, tanks and other miscellaneous mechanical 

equipment shall be furnished and installed. Note special details. 

2. Concrete pads and bases shall also be provided by this Contractor. Concrete 

work shall be performed by skilled workmen in the concrete trade. 

3.08 LUBRICATION 

A. At the time of installation, and before any equipment is operated, properly lubricate all 

items pertaining to the work in contract, according to manufacturer's recommendations. 

Prior to performance tests, provide all required lubrication services. Prepare a typed 

lubrication schedule to be framed in the equipment room for all items of equipment. 

Where special greases or oils are required, the contractor shall furnish to the owner, at 

any time of performance tests, a one year's supply of such special lubricants. 

B. Maintain all lubrication and gaskets during construction and assure that at the time of 

acceptance by the owner, all are in first class operating condition. 






EDUCATION BUIDLING HVAC UPGRADE PROJECT 


MECHANICAL SOUND AND VIBRATION CONTROL 

PART 1 

GENERAL 

1.01 SCOPE 

A. Section 23 01 00, General Provisions - HVAC of this project manual applies to all work 


B. Provide vibration eliminators required to prevent excessive vibration transfer to occupied 

areas. 

C. Mechanical equipment which shall have vibration isolation are fans, supply air unit and all 

moving or rotating units. 

D. Provide substantial bases under all units, fans and motors elevated above floor as noted 

on drawings. Unit suspended from overhead construction shall be spring isolated from 

the structural framework. 

1.02 RELATED WORK 

A. Section 23 05 00 - Basic Products and Methods 

1.03 SUBMITTALS 

A. Submit shop drawings. 

B. Identify equipment type of isolation and deflection. 

PART 2 

PRODUCTS 

2.01 PIPING FLEXIBLE CONNECTIONS 

A. Acceptable manufacturers are Mason Industries, Flexonics, Flex-weld, Resistoflex, 

Apache. 

B. Flexible connection for refrigerant, air, and condenser water piping shall be Mason 

Industries, BBF or approved equal of braided bronze construction with sweat ends. 

C. Flexible pump connectors shall be constructed of nylon tire cord reinforcing with Nordel 

cover and liner. Rated for 250 PSIG and 250 degrees F. Mason Industries MFNC or 

approved equal. 

2.01 DUCTWORK FLEXIBLE CONNECTIONS 

A. Acceptable manufacturers are Vent-Fan, Elgin, Armstrong or Metra-Flex. 

B. Flexible duct connection material shall be neoprene-coated glass fiber or fabric type, 6” 

wide with metal edging for fastening. 

HVAC UPGRADE PROJECT 

230540 - 1 of 4 MECHANICAL SOUND & VIBRATION CONTROL



EDUCATION BUILDING HVAC UPGRADE PROJECT NUMBER 2010-108 

2.03 EQUIPMENT VIBRATION ISOLATORS 

A. Manufacturer model numbers listed are Mason Industries, other acceptable 

manufacturers are Vibration Mountings, Amber Booth, Vibration Eliminator Company and 

Consolidated Kinetics. 

B. Vibration isolators shall be selected in accordance with the weight distribution so as to 

produce reasonably uniform deflection. Isolator deflection shall be as indicated in Part 3 

- Execution of this section. 

C. Equipment mounting type schedule: 

1. Type A: Double deflection neoprene mountings shall have a minimum static 

deflection of 0.35”. All metal surfaces shall be neoprene covered to avoid 

corrosion and have friction pads both top and bottom so they need not be bolted 

to the floor. Bolt holes shall be provided for those areas where bolting is 

required. On equipment such as small vent sets and close coupled pumps, steel 

rails shall be used above the mountings to compensate for the overhang. 

Mountings shall be ND or rails DNR. 

2. Type B: Spring isolators shall be freestanding and laterally stable without any 

housing and complete with 1/4” neoprene acoustical friction pads between the 

base plate and the support. All mountings shall have leveling bolts that must be 

rigidly bolted to the equipment. Spring diameters shall be no less than 0.8 of the 

compressed heights of the spring at rated load. Springs shall have a minimum 

additional travel to solid equal to 50% of the rated deflection. Submittals shall 

include spring diameter deflections, compressed spring height and solid spring 

height. Mounting shall be SLF. 

3. Type C: Equipment exposed to the wind such as condensing units and cooling 

towers shall be mounted on spring mounting as described under Type B, but a 

housing shall be used that includes vertical resilient limit stops to prevent spring 

extension when weight is removed. The housing blocking during erection and 

the installed and operating heights shall be the same. A minimum clearance of 

1/2” shall be maintained around restraining bolts and between the housing and 

the spring so as to not interfere with the spring action. Limit stops shall be out of 

contact during normal operation. Mountings used out of doors shall be hot 

dipped galvanized. Mounting shall be SLR. 

4. Type D: Vibration hangers shall contain a steel spring and a double deflection 

neoprene element in series. Neoprene elements shall have a minimum deflection of 

0.35". Spring diameters shall be no less than 0.8 of the compressed height of the 

spring at rated load. Springs shall have a minimum additional travel to solid equal to 

50% of the rated deflection. Hangers shall be PC30N. 

2.04 INERTIA BASES 

A. Mason, BMK/KSL six inch high base complete with SLF spring isolator corner mounts. 

MECHANICAL SOUND & VIBRATION CONTROL 230540 - 2 of 4 

HVAC UPGRADE PROJECT




EDUCATION BUIDLING HVAC UPGRADE PROJECT 

PART 3 

EXECUTION 

3.01 DUCTWORK FLEXIBLE CONNECTIONS 

A. Connections to be made with 1" x 1" x 1/8" angle on all rectangular openings and two 

#14 gauge 1" band on all round openings. Use 5/16" stove bolts or self-tapping screws 

located 6" o.c. for fastening flexible duct to ductwork. 

B. Flexible connectors shall be 6" wide and installed in a 4" space to allow for ample slack. 

C. Provide flexible connections for air handling units, makeup air units, inline fans, 

centrifugal fans and at other locations shown on the plans. 

3.02 PIPING FLEXIBLE CONNECTIONS 

A. Piping connections shall be made with flexible connections for the following types of 

equipment: 

1. Air Cooled Condensing Unit. 

2. Air Compressors 

3. Dry coolers 

4. Base mounted pumps 

5. Heat Pump Units 

6. Chillers 

7. Cooling Towers 

8. Other types of equipment as detailed on the plans. 

3.03 EQUIPMENT VIBRATION ISOLATORS 

A. Utility fans and tubular centrifugal fans shall be provided with Type "B" isolators as 

specified in Part 2 - Products. 

B. Provide chillers, air compressors and vertical inline pumps with Mason, Type “W” 

neoprene waffle pads. 

C. Inline fans, unit ventilators, fan coil units, horizontal cabinet unit heaters and heat pump 

units shall be provided with Type “D” isolators as specified in Part 2 - Products. 

D. Provide cooling towers, condensing units and dry coolers with Type “C” isolators as 

specified in Part 2 - Products. 

E. Provide base mounted pumps located above grade with inertia bases as specified in Part 

2-Products. This contractor shall install the reinforcing steel and fill the bases with 

concrete. Fans located in built-up air handling units shall also be equipped with inertia 

bases. 


HVAC UPGRADE PROJECT 

230540 - 3 of 4 MECHANICAL SOUND & VIBRATION CONTROL



EDUCATION BUILDING HVAC UPGRADE PROJECT NUMBER 2010-108 

BLANK PAGE 

MECHANICAL SOUND & VIBRATION CONTROL 230540 - 4 of 4 

HVAC UPGRADE PROJECT






TESTING, ADJUSTING AND BALANCING 

PART 1 

GENERAL 

1.01 SCOPE 

A. Section 23 01 00, HVAC General Provisions of this project manual applies to all work 


B. All work shall be inspected, tested and approved as required by State and local 

regulations and/or as specified in this Section, with State and local regulations 

establishing minimum requirements. 

C. All test shall be subject to witness by State and/or local authorities and the 

Architect/Engineer, and test results recorded and reported on appropriate certificates 

submitted to the Architect/Engineer in three copies. 

D. Instruments used for balancing system must have been calibrated within a period of six 

(6) months prior to balancing. 

E. The TAB work will be contracted directly with St. Cloud State University. This 

Section of the Work shall replace motors and drive sheaves as indicated in Part 3 

of this Section. 

F. Assist Commissioning Agency as specified in Section 23 0800. 

1.02 TESTS 

A. Ventilation Tests 

1. Terminal Devices: Upon completion of the work and prior to final inspection, all 

ventilating equipment shall be placed in operation and adjustments made as 

necessary in fan speeds and damper settings to provide air quantities shown on 

plans at all terminal devices. Testing shall be performed and paid for by this 

contractor. Any and all dampers required to obtain the scheduled air quantities 

shall be provided. Velocity readings taken at all supply, return, exhaust and fresh 

air grilles, registers, louvers and hoods with Alnor, Anemotherm or equal 

instruments as approved by the Architect/Engineer. Not less than three readings 

shall be taken at each device and the corresponding air volume computed. 

Submit copy of test results to Engineer for review. 

2. Fans and Motors: Test under load conditions with static pressures at fan inlet 

and outlet, fan RPM and motor amperage and voltage recorded. 

3. Cleaning: After all plastering and millwork has been completed and before the 

final coat of paint is applied to the building interior, all ductwork, grilles, registers, 

diffusers, louvers, and hoods shall be cleaned. All units with filters shall have 

new unused filter media. 





B. Hydronic Systems 

1. Piping: Test hydrostatically at not less than 100 PSIG or 1-1/2 times the system 

working pressure, whichever is greater for a period of two hours, prior to 

application of pipe insulation and final connection to equipment. The testing for 

proper water flow balancing shall be performed and paid for by this Contractor. 

PART 2 

PRODUCTS 

NOT APPLICABLE. 

PART 3 

EXECUTION 

3.01 VENTILATION AND HYDRONIC SYSTEMS BALANCING 

A. The balancing of the hydronic heating systems and ventilation systems shall be 

performed by an independent test and balance agency retained by the contractor. The 

agency shall be a fully certified member of the AABC or the NEBB. International Test & 

Balance will not be an acceptable testing agency. The testing agency shall make any 

adjustments necessary to fan speeds, and balancing valves, etc. to meet the required 

volumes. Furnish to the Engineer three (3) typewritten copies of all tabulations bound in 

three-ring hard cover binders. 

B. After this contractor has completed adjusting all air handling systems, he shall submit to 

Engineer a properly identified schedule showing unit number, room number, test and 

adjusted results of air flow through each register, grille and diffuser. Tabulation data shall 

also include the following for each fan units: CFM of each fan, air pressure drop across 

filters and coils, static pressure at blower discharge and suction, unit external statics, 

RPM of blower, amperage and voltage at motor and motor horsepower. Proper air 

distribution shall be derived through manipulation of dampers in ducts and not be 

restricting of discharge openings with dampers on registers in diffusers. Fan CFM's shall 

be derived via pitot tube duct traverse method. If required to obtain good readings, more 

than one traverse shall be performed. Duct holes from traverses shall be plugged with 

caps. Belt drive fan CFM's shall be adjusted by manipulation of fan sheave to obtain CFM 

specified. 

C. Pitot tube traverse methods shall be used to verify the accuracy of airflow measuring 

stations. 

D. Hydronic systems pump performance, heating coils, heat pumps, crossover bridges, 

terminal units, etc., shall be tested. Test all motors and equipment under specified load 

conditions. Contractor shall properly balance the fluid flow to and from each device and 

report shall include RPM, amperage, flow and operating pressure (suction and 

discharge). 

E. The contractor shall be certain that all systems are ready for operation prior to balancing 

and adjusting with clean filters and other system elements, e.g. coils. Temperature 

control calibration, electrical interface, etc., shall also be complete prior to balancing and 

adjusting. All equipment shall be freshly oiled. The Contractor shall instruct his 






employees and subcontractors to leave all balancing devices in a wide open position and 

free all operating arms and adjustments so that they can be easily operated. 

F. Summary of Work: 

1. The three existing supply fans and two existing return/relief fans shall be 

rebalanced for air volumes indicated on the plans. 

2. The six existing pumps shall be rebalanced. 

3. Balance the Run-Around Heat Recovery system (Alternate Bid). 

4. Balance exhaust systems for air volumes indicated on the plans. 

3.02 DIVISION 23 CONTRACTOR RESPONSIBILITIES 

A. Purchase or replacement of belts, sheaves, motors or any integral component of 

equipment drive assemblies as required allowing the systems to operate at the design 

volumes specified. It will be unacceptable to use the variable frequency drives to limit fan 

volumes unless specifically noted on the schedule that the system is designed for future 

and the installation shall operate at reduced volumes. 






BLANK PAGE 







HVAC SYSTEMS INSULATION 

PART 1 

GENERAL 

1.01 GENERAL 

A. The work covered by this specification consists of furnishing all labor, equipment, 

accessories and materials and in performing all operations necessary for the installation 

of insulation for the plumbing and duct systems. 

B. Insulation shall be installed in a quality manner by skilled workers regularly engaged in 

this type of work. Insulation shall be Owens-Corning, Johns-Manville, CSG or Armstrong 

subject to the approval of the architect/engineer prior to installation. 

1.02 GENERAL INSULATION REQUIREMENTS 

A. All insulations shall have fire and smoke hazard ratings not exceeding the following 

unless otherwise specified: 


Smoke Developed 50 

B. Insulation on all cold surfaces shall be complete with vapor barrier jackets and shall be 

applied with a continuous unbroken vapor seal. Hangers, supports, anchors, etc., that 

are secured directly to cold surfaces must be adequately insulated and vapor sealed to 

prevent condensation. 

C. Provide support inserts or saddles at location where pipe insulation and hangers come in 

contact with each other. Inserts between the pipe and pipe hangers shall be constructed 

of material meeting required flame spread and smoke developed ratings of same 

thickness as the pipe insulation. Inserts shall be sealed with vapor barrier mastic. 

Saddles shall be constructed of 12" long galvanized steel installed between insulation 

and hanger. 

D. Ends of insulation shall be tapered and neatly finished with fabric. 

E. Inserts shall be installed in a manner to completely support the pipe and not crush the 

insulation or damage the vapor barrier. 

F. The precut pipe fitting insulation shall be applied to the fitting to make a snug fit of equal 

thickness against the adjoining pipe insulation. The fitting covers shall be secured by 

stapling and taping the ends to the adjoining pipe insulation. 

G. On cold water piping, all cover seam edges shall be additionally sealed with vapor barrier 

adhesive and ends wrapped with vapor barrier tape overlapping the adjacent jacket. 

H. Optional pipe fitting insulation for size 4" and smaller shall be to insulate with mineral 

fiber cement to a thickness of adjoining pipe insulation. 

I. Fittings over 4" shall be insulated with 3/4 lb. density Fiberglass blanket compressed to a 

thickness equal to adjoining pipe insulation or mitered pipe insulation segments or 

HVAC UPGRADE PROJECT 230700 - 1 of 6 HVAC SYSTEMS INSULATION




premolded fittings secured with 3-ply jute twine, Fiberglass tape or 18 gauge galvanized 

steel wire and finished with a smooth coat of mineral fiber cement. 

J. After the cement is dry, fittings shall be finished with a 4 oz. canvas or equal smoothly 

adhered with a suitable adhesive. 

K. Cold water fittings shall be sealed with vapor barrier mastic over the canvas. 

L. All jackets and end laps shall be sealed with Chicago Mastic 17-465 or equal applied to 

two surfaces or with self-sealing type lap system. 

PART 2 

PRODUCTS 

2.01 CODE I FIBERGLASS PIPE INSULATION 

A. The insulation shall be rated for an operating temperature of 850 degrees Fahrenheit. 

B. Owens-Corning One or Two-Piece Pipe Insulation 

1. Fiberglass 25 ASJ - All service jacket 

2. Fiberglass 25 ASJ - SSL - All service jacket 

C. Johns-Manville Flame Safe Pipe Insulation 

1. All purpose jacket - AP 

2. All purpose jacket - AP self-sealing lap system 

D. Knauf Fiberglass Pipe Insulation 

1. All service jacket 

2. All service jacket wit self-sealing lap 

2.02 CODE II ONE PIECE PVC INSULATED FITTING COVERS 

A. JM Uni-Fit 

B. Zeston 

C. Speed-Line 

D. Proto 

2.03 CODE III DUCT LINERS (1 1/2#/ft3 density) 

A. Owens-Corning Fiberglas – Aeroflex PLUS Type 200 (2 #/cu. Ft. density) 

B. Johns-Manville – Microlite complying with Owens-Corning product specified above. 

C. Certain-Teed/St. Gobain – Ultraliner complying with Owens-Corning product specified 

above. 

D. Knauf – EM Series complying with Owens-Corning product specified above. 

2.04 CODE IV EXTERNAL WRAP INSULATION 

A. Owens-Corning, Fiberglas All Service Duct Wrap, Type 100 (1 #/cu. Ft. density) with FRK 

vapor barrier facing and 2” tabs. 

HVAC SYSTEMS INSULATION 230700 - 2 of 6 HVAC UPGRADE PROJECT





B. Johns-Manville, complying with Owens-Corning product specified above. 

C. Certain Teed/St. Gobain, complying with Owens-Corning product specified above. 

D. Knauf, complying with Owens-Corning product specified above. 

2.05 CODE V EXTERNAL RIGID FIBERGLASS BOARD INSULATION 

A. Owens-Corning 3 lb. density Fiberglass board 700 series with FRK foil reinforced facing. 

B. Certain-Teed/St. Gobain, 4.2 lb. density Fiberglass board, 1B-420 complying with 


C. Johns-Manville 3 lb. density Fiberglass board 800 series complying with Owens-Corning 

product specified above. 

D. Knauf, 3 lb. Density Fiberglass board with FSK foil reinforced facing complying with 


2.06 CODE VI NON-COMBUSTIBLE WOOL INSULATION 

A. U.S. Gypsum, Thermofiber, 8 lb. density, long, resilient inorganic glass fibers bonded 

with a thermosetting resin rated for an operating temperature of 1000 degrees F. 

Insulation shall be complete with a white foil faced backing. 

2.07 CODE VII REFRACTORY CERAMIC FIBER INSULATION 

A. Unifrax, FyreWrap, 3M Firemaster or approved equal duct wrap insulation rated for an 

operating temperature of 2300 degrees Fahrenheit. Insulation shall be complete with an 

aluminum foil faced scrim backing. 

B. Banding shall be provided as required to provide ratings per U.L. testing. 

2.08 CODE VIII FOAM PLASTIC PIPE AND SHEET INSULATION 

A. Insulation shall meet the following fire hazard ratings: 

Sheet 


Smoke Developed 

1/4" 75 

3/8" 110 

1/2" 150 

3/4" 225 

B. For service temperatures of negative 40 degrees F. to positive 220 degrees F. 

1. Armstrong FR Armaflex 

2.09 CODE IX DUCT LINERS (CLOSED CELL TYPE INSULATION) 

A. Armaflex, Armacell insulation with a self-adhering backing. Insulation shall have a 

minimum thermal conductivity of .27/in. of thickness and the insulation shall meet NFPA 

90A 25/50 smoke and flame ratings to be used as part of the duct material. 

B. Nomaco K-Flex duct liner. 





2.10 CODE X ACOUSTICAL LAGGING INSULATION 

A. Sound Seal, Model B-10 LAG/QFA-9 or Audio Seal, Model AB10-LAG-QFA3 of two inch 

thick foil faced construction. 

PART 3 

EXECUTION 

3.01 HYDRONIC PIPING SYSTEMS 

A. All piping in concealed and exposed areas shall be insulated with Fiberglass pipe 

insulation with all service jacket of grades mentioned in Article 2.01, Code I. Thickness 

shall be as follows: 

INSULATION THICKNESS 

Heating 

Piping Temp Runouts 1" 2 1/2" 5" 8" 

System F. up to to to to and 

2" * 2" 4" 6" up 

Hot water 

and glycol* 120-200 1/2 1 ½” 1 ½” 1-1/2 1-1/2 

Chilled Water 40-60 1/2 3/4” 1” 1” 1” 

**High pressure 

steam/ 

condensate 306-450 1-1/2 2-1/2 2-1/2 3 ½ 3-1/2 

**Medium pressure 

steam/ 

condensate 251-305 1-1/2 2 ½ 2-1/2 3-1/2 3 ½ 

**Low pressure 

steam/ 

condensate 201-250 1 1-1/2 1-1/2 2 2 3 ½ 

* = Runouts not exceeding twelve feet in length. 

** = Also applies to feed water piping. 

B. Fittings, valve bodies and flanges for pipe sizes 4" and smaller shall be finished with 

mineral fiber cement to a thickness of adjoining pipe insulation. Over 4" shall be 

insulated with 3/4 lb. density Fiberglass blanket compressed to a thickness equal to 

adjoining pipe insulation or mitered pipe insulation segments to premolded fittings 

secured with three-ply jute twine, Fiberglass tape or 18 gauge galvanized steel wire and 

finished with a smooth coat of mineral fiber cement. 

C. In place of method outlined in paragraph B, the contractor may use insulated fitting 

covers, Article 2.02, Code II as follows: 

1. The precut insulation shall be applied to the fitting to make a snug fit of equal 

thickness against the adjoining pipe insulation. The fitting covers shall be 

secured by stapling and taping the ends to the adjoining pipe insulation. 

2. On cold water piping, all cover seam edges shall be additionally sealed with 

vapor barrier adhesive and ends wrapped with vapor barrier tape overlapping the 

adjacent jacket. 






3.02 EQUIPMENT INSULATION 

A. Insulate chilled water pumps and air separators with 2" thick insulation as specified by 

Article 2.05, Code V. 

B. Apply insulation over pins welded to the vessel. Provide tightly butted ship-lapped and 

stapled joints. 

C. Pins and joints shall be covered with five inch wide pressure sensitive joint sealing tape 

matching the insulation jacket. 

D. Score and miter the insulation as required for a first class installation. 

3.03 DUCTWORK INSULATION 

A. Scope 

1. Outside air ductwork (external) 

2. Relief air ductwork (external) 

3. Exhaust air ductwork (external) 

4. Combustion air ductwork (external) 

5. Supply air ductwork (external) 

B. Installation Details 

1. The insulation shall be complete with foil reinforced Kraft facing and shall be 

applied with edges tightly butted and secured to the metal surface with strips of 

insulation bonding adhesive. At all joints the facing shall be lapped over the 

adjacent facing 2" and sealed with lap adhesive. The lap shall be further 

secured with staples on 6" centers. Seal edges and joints with 9" wide foil 

reinforced tape. The board shall be additionally secured to the duct with 

mechanical fasteners such as welded pins and clips not covering more than one 

square foot of area. All pin clips shall be sealed with matching tape patches. 

2. Exposed ductwork and ductwork located in unfinished spaces shall be covered 

with fiberglass board with a foil reinforced Kraft facing of grades as mentioned in 

Article 2.05, Code V. 

3. Ductwork located above ceilings shall be covered with fiberglass wrap insulation 

with an all purpose vapor barrier jacket of grades mentioned in Article 2.04, Code 

IV. 

4. Insulation thicknesses indicated are minimums. 

C. Relief and exhaust ductwork located within ten feet of an exterior building penetration 

shall be covered with 1" of insulation. 

D. Exhaust air ductwork located within ten feet of power roof ventilators (not serving grease 

exhaust) shall be covered with 1" of insulation. 

E. All outside air and mixed air ductwork shall be covered with 2" of insulation. 

F. Air Conditioned supply ductwork shall be covered with 1" of insulation. Therefore all air 

conditioned supply ductwork shall be covered with insulation unless specified to be lined. 

Note that supply ductwork that does not have air conditioned does not require insulation. 





G. Unused portions of louvers shall be covered with two inches of board insulation. 

3.07 DUCT LINING 

A. Ductwork sizes indicated on the plans are internal dimensions. Outside ductwork 

dimensions shall be adjusted to allow installation of duct lining insulation thickness 

specified. Lining shall be installed in accordance with manufacturer's recommendations. 

B. Unless indicated otherwise, transfer ducts shall be provided with a 1" thick acoustical 

lining of grade noted in Article 2.03, Code III. 

C. Return air ducts located within ten feet of the air conditioned Air Handling Units shall be 

lined with 1” thick acoustical lining of grade noted in Article 2.09, Code IX. 

D. Supply ducts located within ten feet of the air conditioned Air Handling Units shall be 

lined with 1” thick closed cell liner of grade noted in Article 2.09, Code IX. 

E. Existing return air shafts shall be lined with 1” thick closed cell liner of grade noted in 

Article 2.09, Code IX. 








HVAC SYSTEMS COMMISSIONING 

PART 1 

GENERAL 

1.01 DESCRIPTION 

A. Purpose 

1. An independent commissioning authority shall be utilized to verify operation and 

functional performance of HVAC systems for compliance with the specifications. 

The Commissioning Agent will be contracted directly with St. Cloud State 

University. 

2. This Division of the Work shall work with the Commissioning Authority to provide 

Functional Performance Testing Compliance. 

3. This Division shall coordinate and direct training to personnel for operation and 

maintenance of HVAC equipment and systems. 

1.02 QUALITY ASSURANCE 

A. Reference: ASHRAE Guideline 0-2005, Guideline for Commissioning of HVAC Systems. 

B. Commissioning Agent shall be a Certified Commissioning Authority by either ASHRAE or 

the Building Commissioning Association. 

C. Assist Commissioning Authority to perform all Commissioning processes as 

recommended by ASHRAE Guideline 0-2005. 

PART 2 

EQUIPMENT 

2.01 INSTRUMENTATION 

A. Instrumentation shall be provided by agency performing prior tests. Instruments shall be 

operated by individual agency requested by the HVAC Commissioning Authority, as 

specified elsewhere herein. 

PART 3 

EXECUTION 

3.01 GENERAL 

A. HVAC Commissioning Authority shall actively participate in construction phase of the 

project to assure compliance with HVAC Commissioning requirements. 





3.02 PROCEDURE 

A. Attend pre-construction meeting and establish requirements for HVAC commissioning 

authority process throughout construction phase. 

B. Periodically attend construction and coordination meetings. 

3.03 HVAC COMMISSIONING 

A. HVAC Commissioning shall begin after HVAC equipment and systems, along with related 

equipment, systems, structures and areas are complete. 

B. Verify the following TAB readings: 

1. Fan performance 

2. Hydronic performances 

3. Refrigeration side performance 

C. Verify calibration of thermostats and sequences of controls. 

3.04 TRAINING 

A. Provide four hours of classroom training at a site designated by the University located 

within the Campus. 

B. Provide an additional four hours of on site training to walk through start-up, shut down 

and preventative maintenance procedures. 

C. Provide an additional four hours of on site training at the time of final completion to 

refresh the owner on the proper operation of the system. 

3.05 COMMISSIONING REPORT 

A. Submit three copies of a typewritten commissioning report completely describing the 

commissioning procedures utilized. As a minimum, the following checklists shall be 

utilized. 

1. Functional performance tests shall be completed by the Commissioning Authority 

in the presence of the following entities: 

a. Mechanical Contractor 

b. Controls Contractor 

c. Electrical Contractor 

d. City’s Representative. 

2. Commissioning report shall completely describe the results of the functional 

performance tests. If equipment does not perform as specified, the 

Commissioning Authority shall document remedial action required and 

reschedule functional performance testing. 

B. AIR HANDLING UNITS 

1. Prior to Functional Performance Test. 

a. Fans equipped with vibration isolators and return fan and flexible 

connections. 

b. Verify that adequate service clearances have been provided 

c. Verify that clean filters have been installed complete with inclined 

manometers. 

d. Verify that air measuring stations are equipped with CFM gauges. 






2. Functional Performance Test 

a. Activate fan via the controls. 

b. Verify proper control valve operation for the heating and cooling coils. 

c. Verify proper fan rotations. 

d. Verify proper control damper operation for outside air, return air, and 

relief air dampers. Check for economizer and unoccupied sequences. 

e. Verify fan shutdown, outside air damper closure and alarm initiation upon 

freeze and smoke shutdown conditions. 

f. Verify that variable frequency drives provide proper fan speed control in 

response to duct static pressure control and fan tracking control. 

g. Verify that air measuring stations provide accurate velocity pressure 

readings at 50%, 75%, and 100% fan volume. 

h. Verify that outside air minimum changes in response to increased levels 

of carbon dioxide in the return air duct. 

i. Verify gas detection sensors are functioning properly. 

j. Verify fan interlocks are functioning properly. 

k. Verify occupied and unoccupied sequences are operating properly. 

C. Chilled Water Cooling and Steam Heating Coils. 

1. Prior to functional performance test. 

a. Verify piping connections are as shown on the plans. Verify that cooling 

coils are equipped with trapped drain piping. 

b. Physically inspect the installation to verify that air is not bypassing the 

coils. 

c. Verify that controls are connected to the control valves. 

2. Functional Performance. 

a. Initiate a need for cooling and from the controls. 

b. Physically observe modulation of the control valves. 

c. Document the following entering and leaving conditions during heating 

and cooling modes. 

1) Water temperatures 

2) Water pressures 

3) Air temperatures 

4) Air pressures 

d. Verify that moisture carryover is not occurring. 

e. Verify that drain pan drains rapidly. 

D. Building Pressurization Verification 

1. Building shall operate for one week under normal conditions. Provide data logs 

that shall indicate building pressure on an hourly basis for the entire week to 

verify that the building remains positively pressurized for the entire duration of 

the one week time period. 

E. Run Around Heat Recovery System (Alternate Bid) 

1. Prior to Functional Performance Test 

a. Verify duct systems are sealed and do not have leakage. 

b. Verify piping details at the pumps and coils. 

c. Verify controls are connected to the dampers and control valves. 

d. Verify that air measuring equipment has been installed and connected to 

the control system. 

e. Verify Condensate pumps have been installed at exhaust coils. 

2. Functional Performance Test 

a. Verify that energy recovery is not activated during economizer mode. 

b. Verify that fluid temperature entering the exhaust coil does not go below 

35°F. 





c. Verify relief fan tracking controls are properly operating. 

d. Verify proper operation of Condensate pumps that serve exhaust coils. 








AUTOMATIC TEMPERATURE CONTROL 

PART 1 

GENERAL 

1.01 SCOPE 

A. Section 230100, HVAC General Provisions - Mechanical, of this project manual applies 

to all work under this Section. 

1.02 DESCRIPTION OF WORK 

A. Work under this Section includes the furnishing of all equipment, materials and 

performing all labor necessary to complete the automatic temperature and humidity 

control systems, for the hot water heating, steam heating, ventilation, air conditioning and 

refrigeration systems. 

B. Existing pneumatic tubing shall be removed. All new controls shall be electric/electronic 

devices. 

1.03 SUBMITTALS 

A. Shop drawings shall include a control diagram of each system, a brochure(s) of 

component parts, written sequence of operation and control program logic diagrams (flow 

chart showing inputs, outputs, and software logic). 

1.04 SYSTEM DESCRIPTION 

A. Provide a complete D.D.C. building automation system. The system shall be as 

manufactured by Trane. 

B. Unless indicated otherwise, all valve and damper actuators shall be electric devices with 

D.D.C. sensors and controllers. 

C. Software shall include complete graphics package including the following graphic 

displays: 

1 Building floor plan. 

2. System schematics for status and indication. 

a. Existing Air Handling Units with all associated components. 

b. VAV boxes and associated reheat coils and finned tube radiation. 

c. System Pumps 

d. Steam to hot water convertors/heat exchangers. 

D. Interface with BAS system network for completer interoperability with existing systems. 

HVAC UPGRADE PROJECT 230900 - 1 of 17 AUTOMATIC TEMPERATURE CONTROL




PART 2 

PRODUCTS 

2.01 GENERAL 

A. The automatic temperature control system shall be installed by expert workmen in the 

full-time employ of the temperature control manufacturer. 

B. Service and Guarantee 

1. The direct digital control building automation system herein specified shall be 

free from defects in workmanship and material under normal use and service. If, 

within the warranty period, any equipment or workmanship is found defective, it 

shall be replaced or repaired free of charge. The Contractor shall provide all 

service incidental to the proper performance of the control system under 

guarantee during this period. After completion of the installation, the control 

Contractor shall regulate and adjust all thermostats, valves, operators, and other 

equipment provided under this contract. 

C. Building Operator Interface 

1. All controls and points shall be interconnected to existing building front end 

computer system. 

2.02 CONTROL DEVICES AND EQUIPMENT 

A. Actuators 

1. Control valves and control dampers located in building shall be electric devices 

as manufactured by Belimo. 

B. Relays and Switches 

1. Relays shall be of positive and gradual-acting type and switches shall be 

furnished and installed as required for the successful operation of the system. All 

switches shall include suitable identification plates. Provide positive positioning 

operators if required to accomplish the sequencing as specified. 

C. Freezestats shall be equipped with 20 foot long sensing element, shall have adjustable 

setpoint and shall have manual reset. Freezestat shall only be responsive to lowest 

temperature at any point along element. 

D. Valves 

1. All control valves shall have brass bodies rated at a minimum of 125 psi and 

250F. The valves shall have replaceable discs, stainless steel stems and selfadjusting 

packing. The actuators shall be of sufficient size to position the valve 

upon receipt of a control signal from the controller, and to close off against the 

required head pressure. Pneumatic actuators shall be equipped with replaceable 

rolling neoprene diaphragms and a minimum of three replaceable spring 

selection ranges or pilot positioners. Valve pressure drop shall not exceed 3 PSI 

at full design flow. 

2. Solenoid valves for plumbing systems shall not exceed a pressure drop of 1 psig 

at full design flow. 

E. Temperature Control Wiring 

AUTOMATIC TEMPERATURE CONTROL 230900 - 2 of 17 HVAC UPGRADE PROJECT





1. All control wiring (line voltage or low voltage) required to complete the 

temperature control system shall be installed by the Temperature Control 

Subcontractor. 

2. All wiring of switches and electric/electronic control devices shall be by this 

Subcontractor. 

3. All control wiring (line and low voltage) shall be run in conduit. 

4. Electrical Contractor will provide two 20 amp/120 volt circuits to master control 

panels located in the Mechanical Rooms. All other line voltage wiring required for 

direct digital control panels shall be by this contractor fed from master panel 

power sources. Power connections by Electrical will be at the following 

locations: 

a. In the mechanical room near Air Handling Units, AHU-1 & 2. 

b. In the mechanical room near Air Handling Unit, AHU-3. 

6. Complete installation shall comply with the latest edition of the National Electrical 

Code. 

F. Operating Instructions 

1. Upon completion of the work, the manufacturer shall have a qualified 

representative fully acquainted with the installation to instruct the Owner's 

Operator in the fundamentals and operation of the system. This instruction 

period shall not be less than the time required for complete familiarity. 

Manufacturer shall also, upon completion and acceptance of the work, provide 

the owner with three (3) typewritten and/or printed sets of operating maintenance 

instructions including sheets describing fundamentals of each system in the 

installation. One (1) similar set shall be provided for the Architect/Engineer, all 

sets being neatly clipped in heavy manila folders. 

2. The manufacturer shall also mount one (1) set of drawings consisting of 

complete control diagrams, wiring diagrams, etc., adjacent to the equipment in a 

conspicuous location. 

G. Control Dampers 

1. Frames shall be constructed of two hot dipped sheets welded together to form a 

corrugated blade. Frames shall be hot dipped galvanized steel. Blade width 

shall be a maximum of 8". All blades shall have replaceable rubber seals along 

the blade edge. Dampers shall have nylon bearing and oil impregnated shafts. 

All linkages shall have oil impregnated bearings and shall be enclosed in the 

damper frame. Ruskin, Model CD-50, Penn, Model OBD-8 or Johnson Controls, 

Model D-1300. 

2.03 ELECTRONIC DATA INPUTS AND OUTPUTS 

A. Input/output sensors and devices shall be closely matched to the requirements of the 

Global Communications Module (GCM) for accurate, responsive, noise free signal 

input/output. Control input response shall be high sensitivity and matched to the loop 

gain requirements for precise and responsive control. In no case shall computer inputs 

be derived from pneumatic sensors. In no case shall thermocouples or thermistors be 

used. 

B. Temperature sensors shall be Resistance Temperature Detector (TTD) type of 500 OHM 

balco, 100 or 3000 OHM platinum. 

1. Space temperature sensors shall be wireless type with blank commercial type 

locking satin chrome covers (mounted 60” above finished floor) that will only be 

adjustable through the BAS. 





2. Duct temperature sensors shall be averaging type with a minimum sensor length 

of 20 feet. 

3. Water sensors shall be provided with a separable copper, monel or stainless 

steel well. Outside air wall mounted sensors shall be provided with a sun shield. 

4. Dewpoint sensors shall be employ a non-reactive organic bobbin material to give 

precise dewpoint readings with accuracy of not more than +/- 1.5 degrees F. 

The dewpoint sensor shall incorporate an integral draft shield as part of the 

instrument for air velocities in excess of 50 feet per minute. The dewpoint sensor 

shall operate over a minimum dewpoint temperature range suitable to 

application. 

5. Outside air, return air, discharge air, space sensors, and well sensors shall be 

linear within +/- .7 degrees F. Between 32 degrees F and 212 degrees F, this 

linearity shall be that of the sensor itself and not accomplished by software at the 

EMP. 

C. Relative humidity sensors shall be constructed of a solid state copolymer wafer that 

detects humidity by adsorption. Sensors shall have 0% to 90% range with +/- 2% RH 

accuracy. Duct mounted humidity sensors shall be provided with a sampling chamber. 

Wall mounted sensors shall be provided with covers identical to temperature sensors. 

D. Kilowatt transducers shall be the integrated electronic type with accuracy of .2% of scale. 

For balanced (such as motors) three phase loads, two current transformer (CT'S) shall 

be provided and for unbalanced loads, three CT'S shall be provided. Two or three 

potential transformer (PT'S) shall be provided as recommended by the manufacturer for 

the application. Output shall be 4 to 20 ma. Suitable CT'S and PT'S shall be provided 

and installed unless specifically specified with other equipment. 

E. Outputs-Control relays and analog outputs shall be compatible with the system signals. 

Relays shall be suitable for the loads encountered. Analog outputs shall be designed for 

precision closed loop control with repeatability error no greater than 1 1/2 percent. 

F. Differential and Static Pressure Sensors and Switches 

1. Fan proof-of-flow switches shall be adjustable set point and differential pressure 

type. Switches shall be piped to fan discharge except where fans operate at less 

than one inch WG they shall be piped across the fan. For fractional horsepower 

and non-ducted fan, relays or auxiliary contacts may be used. Maximum 

pressure rating shall be a least 10 inches WG. 

2. Air flow and static pressure analog sensors shall be high accuracy suitable for 

the low velocity pressures to be encountered, be selected for approximately 50% 

overrange and have a 4 to 40 ma output. These differential pressure sensors 

shall be connected to the airflow measuring station with valve lines for testing 

and calibration and shall have adjustments for zero and span. 

3. Water flow analog sensors shall be provided complete with flow element and 

shall be an all solid-state precision industrial type with stainless steel meter body, 

maximum error of no more than .5% of span and 4 to 20 ma output. Sensor shall 

be rated for 250 PSI minimum and installed in strict accordance to the 

manufacturers instructions complete with three valve manifold for calibration and 

maintenance. 

G. Duct Mounted Carbon Dioxide sensors shall be GE Ventostat 8007 Series or approved 

equal duct complete with pitot tube type sensor and a calibration guarantee. Sensors 

shall be specifically designed for demand controlled ventilation. 






H. Air Measuring Devices—Outside Air and Relief Air 

1. Outside air measuring shall be accomplished with Tek-Air, Model IAQ-Tek 

suitable for measuring air velocities from 75 to 1000 fpm. This Section shall 

install the sensors in the outside air intakes to provide accurate outdoor air 

measurement to maintain minimum outside air volumes throughout the entire 

range of unit operation. 

2. Velocity sensing probes shall be large area impact type—install on the upstream 

side of the outside air control dampers. Provide the quantity of probes in 

accordance with the air measuring station manufacturer’s recommendations. 

The probes shall be of Kynex plastic construction and shall also be UL listed (UL- 

94-VO and UL-94-5VB). 

3. Provide IAQ-TEK remote transducer and monitor for a complete operating 

system complete with tubing from the velocity sensing probes. Install the 

transducer and the monitor in accordance with the manufacturer’s 

recommendations. Note that the monitor has a 4-20 ma output for integration 

with the building automation system. 

4. Install the system in accordance with the manufacturer’s recommendations for a 

complete operating system. 

5. Note that the system is equipped with three outside air dampers. One damper is 

to provide minimum outside air control and the other two dampers are for airside 

economizer control. 

I. Air Measuring Devices—Supply and Return Fans 

1. Provide airflow measuring devices of the Vortex Shedding type, capable of 

continuously monitoring the airflow volume of the duct served and electronically 

transmitting a signal linear to the airflow volume, shall be provided where 

indicated. Provide Tek-Air T-FP7000 Series fan inlet probes for each fan. 

Provide end support brackets for mounting in the fan inlet bells. 

2. Individual airflow sensors shall be of rugged construction, and shall not require 

special handling during installation. Sensors shall be mounted on support bars, 

as required to achieve an equal area traverse. Standard Materials shall be 

aluminum bars with aluminum and ABS sensors. Support bars over one foot in 

length shall be supported on both ends. Where utilized in corrosive air streams, 

sensors and support bars shall be manufactured of corrosion resistant CPVC 

and ABS. All mounting hardware required shall be furnished by the Laboratory 

Airflow Control System Manufacturer. 

3. Individual velocity sensors shall not be effected by dust, temperature, pressure, 

or humidity. The sensors shall be passive in nature, with no active parts within 

the air stream. The output from individual sensors shall be linear with respect to 

airflow velocity and shall be capable of sensing airflow in one direction only. The 

velocity sensors shall not require calibration. 

4. Velocity measurements from individual sensors shall be summed in the 

associated Airflow Controller via integral Airflow Measurement circuitry. The 

measurement shall be input and conditioned digitally to eliminate Analog-to- 

Digital conversion error. The airflow measurement shall be incorporated in the 

control sequence as performed by the Airflow Controller, and communicated to 

other Airflow Controllers, via the network, as required. Measurement system 

accuracy shall be plus or minus 2% of volumetric airflow rate. Turndown 

capability shall be at least ten to one. 

5. Provide necessary transducers and programming for a complete operating 

system. 

2.04 DIRECT DIGITAL CONTROL (DDC) COMPONENTS 





A. BAS/DDC Field Control Components 

1. BAS/DDC Field Control and Monitoring components shall be microcomputer 

based units with built in Local Area Network communications capability. The 

Control Monitoring system shall consist of one or more Master Panels and 

sufficient distributed Control Panels to meet the requirements of the specification. 

2. The Communications Network shall conform to EIA Standard RS485, serial, 2- 

wire differential, low noise party bus. The communications shall operate at 

approximately 38,400 BPS. Communications shall be half duplex binary 

encoded with the Executive Master continuously polling the Distributed modules. 

Cyclic Redundancy Checking shall be used for error detection and correction. 

Each of the System controllers shall be able to operate in a stand alone mode in 

the event of loss of communications or the failure of any of the other control 

system components. 

B. System Architecture 

1. Main network bus for the systems front end shall be an Ethernet bus arranged for 

a TCP/IP network protocol. 

2. Components on the main network bus shall be BacNet level 5.0 or Echelon, Lon 

works certified by Lon Mark. 

3. Main system and unit controllers shall be configured on a peer to peer network. 

4. Terminal unit controllers can be arranged with sub-lans with a pooling type 

network. 

2.05 SOFTWARE 

A. Graphical Programming 

1. The system shall include the ability for an operator to create his own graphic 

programming. 

2. Full simulation capability shall be provided with the graphic programming such 

that the user shall be able to fully simulate the constructed sequence on screen 

before the sequences are downloaded into the controllers. 

B. Operator access: Provide operator access via software passwords with four levels of 

access. 

C. Alarm Management Sortware (AMS) 

1. The AMS shall be part of the system software. 

2. Alarms shall keep type of alarm and time of occurrence records. 

3. Alarms shall be designated as “critical” and “non-critical” where critical alarms 

are delivered immediately and non-critical alarms are reported at user defined 

intervals. 

D. Operator Interface Software: The building operator shall be able to communicate and 

direct all control functions through the use of a two button “mouse” operator interface to 

monitor and control all functions and sequences within the system. The following 

information shall be selectable from a “pop-up” menu available on various graphics. 

1. Quit 

2. Reports 

3. Schedules 

4. Schedule graphs 

5. Utilities 

6. Groups 






7. Trends 

8. Setpoints 

9. Module Status 

10. Parameters 

2.06 HEATING/COOLING CONTROL SETPOINTS 

A. Control setpoints for heating/cooling systems shall have a dead-band of 5°F as required 

for compliance with ASHRAE 90.1. 

2.07 VARIABLE FREQUENCY DRIVES 

A. General: Provide VFD’s for existing air handling unit fans and existing pumps as noted on 

the plans. VFD’s shall be complete with integral LON Control cards. 

1. The adjustable frequency controller (AFC) shall convert three-phase, 60 HZ utility 

power to adjustable voltage and frequency, three-phase, AC power for stepless 

motor speed control from 10% to 100% of the motor's 60 HZ speed. Input 

voltage shall be as specified on the drawing schedules. 

2. The AFC shall include a converter and an inverter section. The converter section 

shall convert fixed frequency and voltage AC utility power to a variable DC 

voltage. AFC's that use silicon controlled rectifiers in the converter bridge shall 

also include input line reactors. 

3. The inverter section of the AFC shall invert the variable DC voltage into a sixstep 

waveform, adjustable voltage and frequency output for stepless motor 

speed control. 

4. The AFC maximum output current rating shall be 110% of the motor nameplate 

full load current. 

5. The AFC and options shall be tested to ANSI/UL Standard 508 and listed by a 

nationally recognized testing agency such as UL or ETL. 

6. The AFC shall comply with the applicable requirements of the latest standards of 

ANSI, IEEE, and the National Electrical Code. 

7. Power line noise shall be limited to a voltage distortion factor and line notch 

depth as defined in IEEE Standard 519-1981, Guide for Harmonic Control and 

Reactive Compensation of Static Power Converters. 

8. The AFC shall not emit either conducted or radiated RFI in excess of the 

limitations set forth in the FCC Rules and Regulations, Part 15, Subpart J. 

9. Drive manufacturer shall coordinate any special motor requirements with 

successful manufacturers motors. 

10. Drives shall be PWM (Pulse Width Modulated) and IGBT technology. 

11. Drives must accept 4-20 ma or 0-10 volt DC control signal input. 

12. Provide Normally Open contacts for Start/Stop Control. 

B. Basic Features 

1. The AFC shall be housed in a NEMA 1 enclosure. 

2. The following operator controls shall be located on the front of the enclosure: 

a) Hand/off/auto selector switch to start and stop the motor. In the auto 

position, the drive will start/stop from a remote contact closure. 

b) Auto/manual selector switch. In the auto position, motor speed is 

determined by the follower signal. In the manual positions, motor speed 

is determined by the manual speed potentiometer. 

c) Manual speed potentiometer. 





d) Power on pilot light to indicate that the AFC is being supplied by the 

power line. 

e) Fault pilot light to indicate that the AFC has tripped on a fault condition. 

f) Digital meter with selector switch to indicate percent speed and percent 

load. 

3. A set of for C, normally open dry contacts to start/stop AFC. 

4. A set of form C, normally open dry contacts to indicate when the AFC is in the 

run mode. 

5. A set of form C, normally open dry contacts to indicate when the AFC is in the 

fault mode. 

6. A set of form C, normally open dry contacts to indicate when the AFC is in 

Bypass mode. 

7. When input power returns to normal following a fault trip for undervoltage, 

overvoltage, or phase loss, the AFC shall automatically restart. The AFC shall 

not automaticall restart following fault trips due to overload or overcurrent. 

8. The AFC shall include a door interlocked, padlockable, input power disconnect 

switch. 

C. Protective Features 

1. Protection against input transient voltage spikes. 

2. Separate overload protection for each motor controlled. 

3. Protection against input power undervoltage, and phase loss. 

4. Protection against output current overload and overcurrent. 

5. Protection against overtemperature within the AFC enclosure. 

6. Protection against overvoltage on the DC bus. 

7. Coordinate with Division 16 that any disconnect switches between the AFC and 

the motor shall include an auxiliary contact interlocked to the AFC fault trip 

circuit. In the event that a disconnect switch is opened while the drive is running, 

the drive shall shut down. The AFC shall include an adjustable time delay to 

prevent AFC from starting into a rotating motor when the disconnect switch is 

closed. 

8. DC bus discharge circuit for protection of service personnel. 

9. Insensitive to incoming power phase sequence. 

D. Adjustments 

1. Maximum speed, adjustable 50-100% base speed. 

2. Minimum speed, adjustable 0-50% base speed. 

3. Acceleration time, adjustable 2-60 seconds. 

4. Deceleration time, adjustable 2-60 seconds with override circuit to prevent 

nuisance trips if decel time is set too short. 

5. Current limit, adjustable 0-100%. 

E. Service Conditions 

1. Ambient temperature, 0-40 degrees Celsius. 

2. 0-95% relative humidity, non-condensing. 

3. Elevation to 3300 feet without derating. 

4. AC line voltage variation, -5% to +10% of nominal. 

F. Special Features 

1. Manual bypass 






a) Manual bypass shall provide all the circuitry necessary to transfer the 

motor from the AFC to the power line, or from the line to the controller 

while the motor is at zero speed. The bypass circuitry shall be mounted 

in a separate section of the AFC enclosure. 

b) Two motor contactors, electrically interlocked, shall be utilized. One 

contactor is to be between the controller and the motor. The other 

contactor is to be between the bypass power line and the motor 

providing across-the-line starting. Motor overload protection is to be 

provided in both the controller mode and the bypass mode. 

c) The bypass section door shall include a switch to transfer motor 

operation from drive to line or line to drive, and a pilot light to indicate 

whether motor is operating in drive or line mode. 

d) The bypass circuitry shall include a fused disconnect switch or circuit 

breaker to provide a means of disconnecting all power to both the 

bypass circuitry and the controller. The disconnect switch or circuit 

breaker shall be door interlocked and padlockable. The fuses or circuit 

breaker shall be sized to provide short circuit protection for the motor 

when in the bypass mode per the NEC. 

G. Quality Assurance 

1. To insure quality and minimize infantile failures at the jobsite, the AFC shall be 

burned in at an ambient of 40 degrees Celsius minimum for at least 24 hours. 

The AFC shall be operating a dynamometer and the load and speed shall be 

cycled during the test. 

2. All optional and special features shall be functionally tested at the factory for 

proper operation. 

H. Warranty 

1. The AFC shall be warranted by the manufacturer for a period of 36 months from 

date of shipment. The warranty shall include parts, labor, travel costs, and living 

expenses incurred by the manufacturer to provide factory authorized service. 

I. Start-up 

1. Manufacturer's authorized representative shall provide start-up service which 

shall include the following. 

a. Start adjustment percent speed. 

b. Stop adjustment percent speed. 

c. Coordination of control input requirements with Section 15950 

contractor. 

J. Approved Manufacturers 

1. ABB 

2. Reliance Electric 

3. Toshiba 

4. Louis Allis 

5. Mitsubishi 

2.08 VARIABLE SPEED PUMP CONTROLLERS 

A. Pump Controllers shall be as manufactured by Bell & Gossett or Systecon and shall be 

complete with the following. 





1. NEMA 1 enclosure. 

2. Automatic alternation of pumps. 

3. Automatic startup of lag pump upon lead pump failure. 

4. Pilot lights and control switches. 

5. Door interlock circuit breaker. 

6. Alpha-numeric display and keypad programming. 

PART 3 

EXECUTION 

3.01 INSTALLATION 

A. All wiring and tubing shall be properly supported and run a neat and workmanlike 

manner. All wiring and tubing exposed and in equipment rooms shall run parallel to or at 

right angles to the building structure. All piping and wiring within enclosures shall be 

neatly bundled and anchored to prevent obstruction to devices and terminals. 

B. The Temperature Control Contractor shall be responsible for all electrical installation 

required for a fully functional system and not shown on the electrical plans or required by 

the electrical specifications. All wiring shall be in accordance to all local and national 

codes. All line voltage wiring, all wiring exposed, and all wiring in equipment rooms shall 

be installed in conduit accordance to the electrical specifications. All electronic wiring 

shall be #18 AWG minimum THHN and shielded if required. 

3.02 INSTALLATION ENGINEER 

A. The automatic temperature control system shall be installed under the supervision of an 

authorized installation engineer. 

3.03 FANS AND PUMPS 

A. Building Automation System shall provide status indication for all new and existing fans 

and pumps. 

B. Existing Toilet Exhaust fans shall be provided with time of day schedule for occupied and 

unoccupied sequences such that toilet exhaust fans shall be locked out during the 

unoccupied mode and shall be energized during the occupied mode. 

3.04 UNIT HEATERS AND CABINET UNIT HEATERS 

A. Provide a space temperature sensor mounted 60” AFF interlocked with BAS for each unit 

that upon a decrease in space temperature below setpoint, shall modulate the control 

valve towards the open position. Provide an end switch on the control valve that shall 

energize the unit fan when the valve is fully open. 

B. Provide an aqua-stat that shall sense return fluid temperature and shall lockout the fan 

operation when the return fluid temperature is below setpoint of 100 degrees F. 

3.05 FIN TUBE RADIATION 






A. Provide a space temperature sensor for each unit mounted 60” AFF that shall upon a 

decrease in space temperature below setpoint, shall modulate the control valve towards 

the open position. Control valves shall be power open/fail closed. 





3.06 VAV BOXES 

A. General: VAV boxes are pressure independent. This Section of the Work shall furnish 

the damper actuators and box reset controllers to the successful VAV box manufacturer 

for factory installation. Boxes shall be arranged for direct-acting normally open operation. 

B. Provide reheat boxes with dual minimums that shall be indexed to "summer" or "winter" 

mode of operation through an outdoor air temperature sensor. Dual minimum boxes 

shall be indexed to the "winter" mode of operation whenever the outside air temperature 

is below 60 degrees F. thus providing scheduled volume at winter minimum. Dual 

minimum boxes shall be provided with fully adjustable controls to override summer 

minimum volume adjustment for winter operation. Winter minimum adjustment shall be 

coordinated with the balancing contractor. 

C. Reheat Boxes and Finned Tube Radiation 

1. Provide a space temperature sensor such that upon a decrease in space 

temperature below setpoint, shall modulate box from full volume down to 

minimum volume. Upon a further decrease in space temperature below setpoint, 

the reheat coil and finned tube radiation two-way control valves shall be 

modulated towards the open position. Dual maximum boxes (noted as such on 

VAV Box Schedule) shall modulate to full air volume upon a further decrease in 

space temperature below setpoint after the heating control valves are fully open. 

Upon an increase in space temperature, the reverse shall occur. 

2. Provide two outputs from the VAV box controller. One for the reheat coil and one 

for the finned tube radiation. Finned Tube control valve shall be closed in the 

cooling season. 

3. Provide control valves with electronic actuators under the base bid and the 

deduct alternate. Therefore, the deduct alternate still requires new control valves 

complete with new actuators. 

E. Building automation system shall provide the following indication and adjustment for each 

zone: 

1. Space temperature indication. 

2. Setpoint temperature indication and adjustment CFM of air being delivered to the 

space. 

3. CFM of air being delivered to the space. 

4. Control valve positions. 

5. Maximum and minimum CFM indication and adjustment. 

6. Reheat coil discharge air temperature. 

7. Where applicable, room carbon dioxide level in ppm. 

F. Programming shall provide separate summer/winter setpoints as indexed from outside air 

temperature. 

G. Provide space carbon dioxide sensors at locations shown on the plans. See Air Handling 

Unit Sequence for outside air control associated with carbon dioxide sensors. Upon an 

increase in space carbon dioxide level above setpoint, the VAV box minimum shall be 

doubled. After ten minutes, if the carbon dioxide level is still above setpoint, the box 

volume shall go to maximum. 






3.07 EXISTING AIR HANDLING UNITS (S1, S2, S3 and RE1 & RE2) 

A. Provide unit with an independent timeclock function with annual programming capability 

(accounting for leap years) to index system to "occupied", and "unoccupied" modes of 

operation. 

B. With system indexed to occupied, the supply Fan, shall run continuously with the outside 

air control damper open to it’s minimum position setpoint subject to the freeze stat and 

the demand ventilation controls. 

C. Outside air minimum shall be CFM controlled to maintain outside air minimum volume 

during all modes of operation. Therefore, the outside air damper shall be modulated to 

maintain CFM as sensed by the outside air measuring stations. 

1. Standard Minimum shall be 10% of the unit volume (4300 CFM). 

2. Upon an increase in Classroom carbon dioxide level above setpoint of 700 to 

1100 ppm, the outside air minimum shall be slowly modulated to provide up to 

the minimum volumes scheduled on the plans on the IAQ Schedules to decrease 

carbon dioxide levels in the building. Upon a decrease in carbon dioxide levels 

below setpoint, the outside air dampers shall revert back to 10% minimum. 

3. Upon still a further increase in Classroom carbon dioxide levels above setpoint 

with the outside air volumes at IAQ minimums, an alarm shall be initiated through 

the Building Automation System. 

D. Zone temperature sensors shall be cumulated to maintain discharge air temperature 

control required by the room calling for the most cooling. 

E. Provide a controller with its sensor in the discharge air that shall reset the supply air 

temperature between 55 degrees F and 75 degrees F based on the room thermostat 

calling for the most cooling. Discharge air temperature shall be maintained by 

modulating the coil control valves. Existing chilled water two way control valves are to 

remain and be reused. Existing hot water three way control valves shall be replaced with 

new two way control valves. 

F. Provide outside air and mixed air temperature and enthalpy sensors that shall maintain a 

mixed air setpoint by modulating return air, relief air, and outside air control dampers in 

sequence above their minimum positions. 

G. Provide differential pressure switches across the supply and return fans that shall upon 

failure of the either one of the fans, shall close the outside air and relief air dampers, 

open the return air damper, de-energize the fans and sound an alarm. Provide 

necessary interlocks to prevent false alarms. 

H. Provide a freeze detection thermostat on the leaving side of the heating coil section that 

shall stop the fans, close the outside and relief air dampers, open the return air damper, 

fully open the heating coil control valve and sound an alarm whenever the discharge 

temperature is 35 degrees F or below. 

I. Interlock with smoke detectors such that upon a smoke condition, the fans shall be deenergized 

and outside, relief and return air dampers shall fully close. 

J. Provide duct static pressure sensor two-thirds the distance down the supply duct that 

shall provide input signal to control the supply fan variable frequency drives (VFD’s). The 





VFD’s shall be in 25% open position upon startup to prevent over pressurization of duct 

system. 

K. Provide high limit duct static pressure sensors in the supply and return ducts near the 

unit that upon a high limit condition shall sound an alarm, de-energize the fans and close 

the outside air and relief air dampers. 

L. Unoccupied mode: Fans shall normally be off. Outside air and relief air control dampers 

shall be fully closed during all periods of unoccupied operation. Upon a decrease below 

night setback setpoint from any of the associated VAV Box zone temperature sensors, 

the respective units shall be energized with the outside air and relief air dampers 

remaining closed and the heating coil valve shall be modulated to maintain a discharge 

air temperature of 75 degrees F. VAV boxes shall simply be controlled per the normal 

sequence to maintain the day time setpoint. 

M. Return Fan Control: Provide return fan tracking control to maintain volume differential 

between the supply and return fans. Provide air volume differential control for return fan 

tracking control. Return fans shall be arranged to maintain a volume differential of 3,000 

CFM less than the Supply Fans. Therefore, if the summation of Supply Fan volumes is 

30,000 CFM, the RE Fans shall be controlled for 15,000 CFM each. Provide fan volume 

sensing at fan suction for the return fans. Provide fan measurement sensors as 

indicated in Part 2 of this Section. Note that there are two return fans and three supply 

fans. 

N. Outside Air Minimum Override: Provide carbon dioxide sensors in the return air ducts that 

upon an increase in carbon dioxide above setpoint, shall modulate the outside air control 

damper towards the open position and sequence the return and relief air dampers 

accordingly subject to the freeze stat. Provide outside air measurement devices as 

indicated in Part 2 of this Section. 

O. Optimized Start: Provide optimized start programming to provide system start up prior to 

switching from “unoccupied” to “occupied” modes of operation. Outside air and relief air 

dampers shall be fully closed during “warm-up” sequence. 

P. Filter Pressure Drop Indication: Provide pre-filters and final filters with separate pressure 

drop indication and monitoring. Provide alarms when pre-filter pressure drop exceeds .6” 

W.C. and final filter pressure drop exceeds 1.0” W.C. Note that there are pre-filters for 

both the supply air and return air. 

Q. Provide all controllers and components required for the operation of this system. Provide 

the following alarms and status indication at the building automation system front end 

personal computer. 

1. Temperature indication for return air, mixed air, supply air, relief air and outside 

air. 

2. Fan failure alarms. 

3. System "off" on freeze condition alarm. 

4. System "off" on smoke condition alarm. 

5. Audible alarms. 

6. Audible alarm silence capability. 

7. Supply and Return fan status 

8. Supply and Return fan CFM as calculated from velocity pressure. 

9. Duct static pressure setpoint indication and adjustment. 

10. Actual duct static pressure. 






11. Discharge air temperature setpoint. 

12. Outside air CFM. 

13. Return air CFM. 

14. Percent open positions of control dampers and control valves. 

15. Filter pressure drop alarms and indication. 

16. Return air carbon dioxide level in parts per million. 

17. High limit duct static pressures (actual and setpoint). 

S. Provide interlocks with the Supply Fan variable frequency drives such that the associated 

VAV boxes shall go to full open position when the drive is operated in the bypass mode. 

Drive status (automatic, off or bypass) shall be provided through the building automation 

system. 

T. Provide the Classrooms with carbon dioxide sensors for increased ventilation/outside air 

volumes upon an increase in carbon dioxide levels above setpoint. Classroom carbon 

dioxide levels shall be indicated on the BAS at the respective VAV box page. 

U. Existing Outside air dampers shall be reconditioned with new vinyl blade seals. 

V. Replace existing pneumatic damper actuators with new electric actuators as 

manufactured by Belimo or approved equal. 

W. Replace existing hot water and chilled water coil control valves with new valves complete 

with electric actuators. 

X. S-3 is currently a Multi-Zone unit that shall be converted to a VAV system. Replace 

existing hot deck and cold deck control dampers and provide discharge air controls in the 

common supply air ducts of the four associated zones. Maintain discharge air control by 

modulating heating or cooling control valves. Hot and cold deck dampers shall be two 

position such the only airflow shall flow through the cold deck during cooling mode and 

only airflow shall flow through the hot deck during the heating mode. 

3.08 EXISTING CONVERTORS AND ASSOCIATED HEATING PUMPS 

A. Replace existing steam control valves with new valves and provide new hot water supply 

temperature sensors to provide control for the two existing convertors. One convertor 

serves perimeter finned tube radiation and the other convertor serves the heating coils 

(booster coils Air Handling Unit Heating Coils). 

B. Provide reset schedule to vary the supply water temperature between 120°F and 180°F 

as the outside air temperature varies between 50°F and 0°F. 

C. Radiation Convertor and four associated radiation Pumps shall be locked out whenever 

the outside air temperature is above 40°F. 

D. Coil Pumps are sized for summer and winter modes. The larger pump shall is sized for 

winter mode and the smaller pump is sized for summer mode. Operation shall be 

indexed based on outside air temperature. Changeover from summer to winter shall 

occur as the outside air temperature goes above or below 50°F. Both pumps shall 

operate whenever the outside air temperature is below 0°F. 





E. Radiation Pumps shall be provided with differential pressure bypass control valves and 

pressure sensors 2/3 the distance into their respective systems to prevent their 

respective pumps from “dead-heading”. 

F. Coil Pumps, HWP-1 & HWP-2 shall be provided with a differential pressure bypass 

control valve and pressure sensor that shall open upon a increase in pressure above 

setpoint. Provide Coil Pumps with VFD’s for pump speed control complete with Variable 

Speed Pump controls as specified in Part 2 of this Section. Provide differential pressure 

bypass control complete with sensor and control valve as detailed and at location shown 

on the plans. 

G. Interlock the steam control valve with the associated pumps such that when all of the 

associated pumps serving the heat exchanger are de-energized or fail, the steam control 

valve shall be closed. 

3.09 CHILLED WATER PUMP AND ASSOCIATED CHILLED WATER COILS 

A. Chilled water is fed from the existing central plant and thus a chilled water pump is not 

required. 

B. The existing chilled water control valves are two way type and shall be reused. 

3.10 RUN AROUND HEAT RECOVERY SYSTEMS (ALTERNATE BID) 

A. Provide controls for run around heat recovery systems as shown on the plans. 

B. Provide each exhaust coil with three way control valve that shall be controlled to maintain 

a minimum fluid temperature of 35°F entering the exhaust coil to prevent frosting on the 

exhaust coils. 

C. Interface with economizer controls to lockout the heat recovery system when the air 

handlers are in economizer mode. Lockout of the heat recovery system shall close 

energy recovery coil control dampers, de-energize heat recovery pumps and de-energize 

prop exhaust fans, EF-1, 2, 3 & 4. Energy recovery system shall be locked out whenever 

the outside air temperature is between 40 and 80°F. 

D. Provide Variable Frequency Drives for the Exhaust Fans, EF-1 ,2 , 3 & 4 to allow tracking 

of the heat recovery relief flow with the outside air volume. Provide airflow measuring on 

the outside air and exhaust air systems to allow proper tracking of the airflow. Demand 

ventilation controls are arranged for a 10% minimum to a full minimum of approximately 

30%. Energy Recovery coils are sized for full minimum of 30%. 







BLANK PAGE 







HYDRONIC PIPING SYSTEMS 

PART 1 

GENERAL 

1.01 SCOPE 

A 

This section includes all labor, materials, equipment, skill and tools necessary to furnish 

and install the hydronic piping systems and associated specialties. 

PART 2 

EQUIPMENT 

2.01 HYDRONIC SYSTEMS ACCESSORIES 

A. Expansion Tank - Furnish and install Bell & Gossett compression tanks on hydronic 

systems where indicated on the drawings of size and capacity indicated. Each tank shall 

be constructed and stamped for ASME PSI working pressure. Tanks shall be provided 

with all tappings required and indicated including a gauge glass. Provide diaphragm type 

tanks where detailed on the plans. Other approved equals are Armstrong, Amtrol, Taco, 

and Thrush. 

B. Tank Fitting - Furnish and install in each compression tank, a Bell & Gossett Air-Trol tank 

fitting or approved equals listed above, size as scheduled on drawings. 

C. Drain-O-Tank - Furnish and install in each compression tank, an Amtrol or Bell & Gossett 

Drain-O-Tank air charger fitting of proper size. 

D. Air-Trol Fitting - Furnish and install each hydronic system with a Bell & Gossett Rolairtrol 

air separator of size noted on drawing. Unit shall be furnished with a galvanized steel 

strainer with 3/16" diameter perforations with minimum free area of five times the cross 

sectional area of connecting piping. Approved equals listed above. 

E. Relief Valve - Furnish and install Bell & Gossett, or approved equal, ASME relief valve on 

each system. 

F. Drain Valves - Drain valves for hydronic systems, at risers and low points of mains, shall 

be bronze body ball valve, 3/4" threaded inlet, 3/4" male hose thread outlet with cap and 

chain. Manufacturer: Watts, B-6000-CC, Milwaukee BA100-H, or approved equal. 

G. Air Vents 

1. Hoffman #79 vents shall be used on piping mains and within equipment areas. 

2. Cole #14 key operated with 1/4" copper tubing shall be used on small branch 

runouts and individual terminal heating units. 

3. Comparable air vents by American Tube and Controls, Taco, Armstrong, or Bell 

& Gossett shall be acceptable. 

HVAC UPGRADE PROJECT 232100 - 1 of 6 HYDRONIC PIPING SYSTEMS




H. Triple Duty Valves 

1. General - Triple duty valves may be used in lieu of check valve, balance valve 

and isolation valve on pump discharge. 

2. Manufacturer: Bell & Gossett, Taco, Titan Flow Control, Thrush. 

I. Automatic Flow Control Fittings (Constant Flow Regulators) 

1. Griswold threaded mini, threaded flange, and class 150 flange type. Other 

acceptable manufacturers are Bell & Gossett and Auto Flow. 

2. Gray iron or cast iron housings with threaded or flanged ends, all stainless steel 

spring loaded pressure compensating cartridge. Maximum of 2 PSI differential 

across the unit (2-32 psi spring range). Accuracy ratings of +/- 5%. 

3. Units shall be warranted to provide accurate flow rates for a period of five years. 

J. Thermometers 

1. General 

a) Case: Aluminum, 9", clear plastic or glass window 

b) Scale and Tube: Black on white, red reading, mercury filled. 

c) Stem and Well: Angle adjustable stem, separable well. 

d) Dial type shall be Trerice mercury actuated type with 3 1/2" polished 

stainless case. 

2. Range: 30 degrees F. to 240 degrees F. 

3. Manufacturers: 

a) March 

b) Marshalltown 

c) Moeller 

d) Trerice 

e) U.S. Gauge 

f) Weksler 

K. Pressure Gauges 

1. General 

a) Dial: 4 1/2" black on white, red tip pointer 

b) Case: Aluminum, clear glass window 

c) Bordon Tube: Bronze, silver brazed 

d) Movement: Brass-bronze bushed-rotary type 

2. Range - One and one half (1 1/2) times the maximum system pressure. 

3. Manufacturers: 

a) March 

b) Marshalltown 

c) Moeller 

d) Trerice 

e) U.S. Gauge 

f) Weksler 

L. Pressure-Temperature Taps (PTT) 

1. Pressure-temperature taps suitable for pressure of 200 PSI shall be provided. 

Taps shall consist of 1/4" MPT fitting to receive a pressure or temperature probe 

1/8" O.D. Fittings shall be solid brass with valve core of Nordel gasket. Provide 

extension pieces on insulated piping systems. 

HYDRONIC PIPING SYSTEMS 232100 - 2 of 6 HVAC UPGRADE PROJECT





2. Gauges shall be 1/8" O.D. stainless steel 5" long probes. Furnish two (2), 0-200 

PSIG. Pressure gauges, two (2) 50 degree - 200 degree pocket testing 

thermometers and two (2) 25 degree - 125 degree pocket testing thermometers. 

3. Units shall be equal to those manufactured by Peterson Engineering Company 

(Pete's Plug). 

M. Strainers 

1. Furnish and Install a Y-Pattern Strainer upstream of all pumps and control 

valves. For pipe sizes 2” and smaller furnish an ASTM A126 threaded Cast Iron 

strainer, ANSI 250 lb. Class with 20 or 30 Mesh Stainless Steel Screen equal to 

Titan Flow Controls, Inc. YS-12-CI; for pipe sizes 2-1/2” and Above furnish an 

ASTM A126 Flanged Cast Iron strainer, ANSI 125 lb. Class with 1/16” or 1/8” 

Perforated Stainless Steel Screen equal to Titan Flow Control Inc. YS-58-CI. 

2.02 FLOW MEASURING VENTURIS (FLOW METERS) 

A. Construction 

1. 1 1/4" thru 2", brass screwed ends 

2. 2 1/2" and larger, butt welded ends 

B. Accessories 

1. Nipple, valves, disconnects 

2. Chained metal tag with location of name, size, GPM, meter reading (Pressure 

drop) for GPM specified 

C. Pressure drop not to exceed 40" W.C. for specified flow. 

D. Acceptable manufacturers: Barco, Ken Gerrish or Flow Set. 

2.03 CHEMICAL TREATMENT - HYDRONIC SYSTEMS CHILLED WATER AND HOT 

WATER HEATING 

A. Qualifications 

1. The water treatment chemical and service shall be provided by a supplier that is 

a recognized specialist, active in the field of industrial water treatment whose 

major business is in the field of water treatment, and shall have regional water 

analysis laboratories, development facilities and service department, plus fulltime 

service personnel located within the trading area of the job site. 

B. Chemical Feeder 

1. Provide each system with a shot type feeder with funnel, air release valve 

designed to meet pressure requirements of systems. 

2. Feeder capacity shall be at least 9.1% of the system capacity but no less than 

two (2) gallons. 

C. Chemical Treatment Program. When the system(s) has been flushed and cleaned as 

specified in the Section, the water treatment supplier shall furnish the following: 

1. Water testing and analysis 

2. Recommendations for treatment 

3. Start-up assistance 





4. Training of operating personnel 

5. Field service and consultation as required 

6. Initial charge plus one year's supply of chemical to control scale and corrosion. 

PART 3 

EXECUTION 

3.01 HYDRONIC PIPING SYSTEMS INSTALLATION 

A. Particular care must be given toward keeping the piping systems clean during the 

installation. Each length of pipe, fittings, etc., must be thoroughly cleaned of all dirt, 

filings, etc., before assembling. 

B. The workmanship shall be of the highest throughout. The pipe runs must be straight and 

of uniform pitch and the complete work must present a first class and finished 

appearance. All piping shall pitch not less than 1" in 40' of the direction of water flow or 

air vent points, and shall be so installed as to prevent vibration and water hammer. 

Eccentric reducers or eccentric fittings must be used at all points where pipe sizes 

change and particular care must be taken to eliminate all pockets for the trapping of air. 

3.02 AIR VENTS 

A. Install air vents as required to remove air at all high points in the systems and other 

places air may become trapped. 

B. Air vents shall be located so they are accessible. Provide tubing as required so the air 

vents are in accessible locations. 

3.03 CLEANING AND FLUSHING OF HYDRONIC PIPING SYSTEMS 

A. General: New and existing piping systems shall be cleaned and flushed. Existing 

systems shall be drained and provided with new fluid. 

1. Each system shall be prepared for operation as described herein in the presence 

of the engineer or his appointed representative. The entire building chilled water 

and hydronic hot water piping systems shall be cleaned and flushed in 

accordance with this specification. Isolate the chilled water piping systems from 

the central plant at the existing chilled water pumps to remain. 

2. Chemicals and testing shall be provided by a recognized specialist, active in the 

field of industrial water treatment, whose business is in the field of water 

treatment and shall have water analysis laboratories, development facilities and 

service department. 

B. Procedure 

1. After the piping systems have been completed and pressure tested, set all hand 

valves and control valves in an open position. 

2. Fill the systems with clean water and start the system pumps. 

3. Using the chemical feeders on the hydronic systems, add dosage as 

recommended by chemical supplier per gallon of water in system. 

4. After the cleaner has been added to the system, continue to run the pumps for a 

period of four hours. During this period, the pump strainers shall be inspected 

and cleaned as required to prevent damage to the pumps, but in no case shall 

inspection and cleaning be done at greater than one hour intervals. 






5. At the end of the four hour run, drain all systems completely, then flush with 

clean water for a two hour period, or until all traces of the cleaning chemicals are 

gone, periodically discharging dirty water to sewer. 

6. Remove, clean and replace all strainer screens. 

3.04 GLYCOL SYSTEMS 

A. General: Heat Recovery System is a glycol system. The hot water heating and chilled 

water cooling systems are 100% water systems. The heat recovery system is a deduct 

alternate bid. 

B. Glycol solutions shall be 40% glycol/60% water premixed in factory. 

C. Glycol shall be Dow-Frost, or approved equal food grade propylene based inhibited 

solution. 

D. Contractor shall keep adding glycol solution until all of the air is purged/bled from the 

system. 






BLANK PAGE 







HYDRONIC SYSTEMS EQUIPMENT 

PART 1 

GENERAL 

1.01 SCOPE 


and install the hydronic systems equipment as specified in this section. 

PART 2 

PRODUCTS 

2.01 HYDRONIC SYSTEM PUMPS (IN-LINE) 

A. The mechanical contractor shall furnish and install factory fabricated in-line circulating 

hydronic water pumps, all as scheduled on the drawings and specified herein. For pump 

numbers used, prefer to the Bell & Gossett Company product catalog. Other acceptable 

makes are Taco and Chicago. 

B. The units shall be designed for 250 degrees F. temperature application with cast iron 

construction, bronze fitted bronze impellers, stainless steel shafts, high temperature 

seals, oil lubricated bearings, and a high efficiency national make motor operating at 

1750 RPM. The electrical characteristics shall be as scheduled on the drawings. The 

pumps shall be Bell & Gossett Company models scheduled for hydronic use. The pumps 

listed shall have mechanical leakproof seals, BunaN Bellows, carbon ceramic faces, 

brass metal parts and stainless steel spring. Provide one extra seal with metal tag ID for 

each hydronic pump of this project. 

C. Pump motors shall be premium high efficiency as specified in the General Provisions 

Section. 

PART 3 

EXECUTION 

3.01 PUMPS 

A. Install pumps as detailed on the plans. 

B. See Section 23 0540 for vibration isolation requirements. 

C. Each set of pumps shall be provided with a venturi type flow meter as specified in 

Section 23 2100 for balancing. 

D. Provide existing pumps with new pressure gauges upstream and downstream of the 

pump. 


HVAC UPGRADE PROJECT 232120 - 1 of 2 HYDRONIC SYSTEMS EQUIPMENT




BLANK PAGE 

HYDRONIC SYSTEMS EQUIPMENT 232120 - 2 of 2 HVAC UPGRADE PROJECT






AIR DISTRIBUTION DUCT SYSTEM 

PART 1 

GENERAL 

1.01 SCOPE 


and install the ductwork, housing, drain pans, dampers, louvers, connections, grills, 

register, diffusers, test openings, and access panels and as specified herein. 

B. New systems shall be protected from construction dust and debris. Ductwork openings 

shall be covered with plastic or filter cloth to prevent dust and debris from entering the 

ductwork systems. 

C. All ductwork and associated specialties shall be clean and in new condition prior to 

startup of systems. Systems shall not be used for temporary heat or ventilation during 

the construction process. 

D. See Section 15010 for further requirements. 

PART 2 

MATERIALS AND EXECUTION 

2.01 LOW PRESSURE RECTANGULAR DUCTWORK (under 3" S.P.) 

A. This contractor shall furnish and install all ductwork as shown on the drawings and as 

called for in these specifications unless specifically noted to be by others. The 

architect/engineer reserves the right to make minor changes in the run of certain ducts 

without extra cost to the owner, if necessary, to avoid unforeseen structural or other 

interferences. 

B. All ductwork shall be fabricated according to standard industry practice and in 

accordance with the most recent "ASHRAE Guide and Data Book" as published by the 

American Society of Heating, Refrigeration and Air-Conditioning Engineers, Inc., and 

most recent "Duct Manual" as published by the Sheet Metal & Air Conditioning 

Contractors National Association. 

C. All ductwork except that associated with grease exhaust systems shall be constructed of 

galvanized sheet steel. All sheet steel, unless specified otherwise, shall be the best 

grade and of gauge indicated below. 

RECTANGULAR DUCTS 

Width in Inches Gauge of Steel 

4 to 12 #26 

14 to 30 #24 

31 to 54 #22 

55 to 84 #20 

85 and above #18 

HVAC UPGRADE PROJECT 233100 - 1 of 10 AIR DISTRIBUTION DUCT SYSTEM




D. All panels over 12" wide or deep shall be crossbroken for strength. 

E. The architect/engineer reserves the right to order additional bracing if deemed 

necessary. 

F. All ductwork must be made practically air tight. The architect/engineer reserves the right 

to order any open seams that may be present made right by soldering and riveting. No 

open joints at corners or elsewhere will be tolerated. As a minimum, all joints and seams 

shall be sealed with hard cast iron grip number 601 sealer. 

G. Ductwork shall be run as high as possible in all rooms to maintain proper headroom. 

Whenever possible, ducts shall be run close to beams or floor slabs above and where 

two or more ducts cross each other, they must be arranged in such a manner as to give 

the greatest possible clearance underneath. Ventilating contractor shall not cover any 

electrical outlets. This contractor shall consult with the other trades to avoid interference 

with piping runs, etc. This contractor shall inform the architect/engineer before 

proceeding with any concealed ductwork that will require a ceiling to be lowered or shaft 

to be increased in size, etc. 

H. All ductwork shall be substantially supported with hangers to the ceiling or otherwise, 

depending upon local conditions, placing supports not over eight feet apart along the 

length of a duct. All hangers shall be made of heavyweight straps, not less than 1" in 

width, secured to the side of the duct. The hangers shall be securely fastened to the 

building construction by approved methods. 

I. Rectangular duct takeoff fittings shall be 45 degree "EL" type conforming to 

recommendations of the latest SMACNA guide. 

J. Screen material for duct openings to be covered with screen shall be 1/2" mesh of 

galvanized steel construction. 

2.02 FLEXIBLE DUCTWORK 

A. Furnish and install flexible air duct where shown on the drawings. 

B. Flexible duct shall be factory pre-insulated duct composed of a corrosion-resistant 

reinforcing wire helix permanently bonded and enclosed in polyester film, then covered 

with 1 1/2", 3/4 lb. density fiberglass insulation blanket sheathed in a vapor barrier of 

aluminum metalized polyester film laminated to glass mesh, elastomer back-coated. The 

duct must meet GSA standards, must comply with the latest NFPA Bulletin 90A and be 

listed as Class 1 Air Duct Material, UL Standard 181. Duct shall be Type WK as 

manufactured by the Wiremold Company. 

C. Air duct shall be sealed to the male outlet with 3M Company EC-800 and finally fastened 

by the use of a strap clamp. 

D. Maximum length of each flexible air duct shall be 5'-0". 

E. flexible ducts shall be attached with a minimum of two sheet metal screws at each 

connection. 

AIR DISTRIBUTION DUCT SYSTEM 233100 - 2 of 10 HVAC UPGRADE PROJECT





F. Flexible ducts will only be allowed on runouts to diffusers. VAV box connections shall be 

hard ducted. 

2.03 SPIRAL DUCTWORK 

A. United States Metal, Uniform, Ajax or Semco or equal. Galvanized steel with "paint-grip" 

finish meeting ASTM A-527-71 constructed using spiral lockseam and in the minimum 

gauges listed. 

ROUND DIAMETER 

GAUGE 

3" thru 14" 26 ga. 

15" thru 26" 24 ga. 

27" thru 36" 22 ga. 

37" thru 50" 20 ga. 

51" thru 60" 18 ga. 

61" thru 72" 14 ga. 

B. The spiral duct shall have locked seams so as to eliminate any leakage under the 

pressure for which this system has been designed. 

C. All fittings are to have continuous welds along all seams. All divided flow fittings are to 

be manufactured as separate fittings, not as tap collars welded into spiral duct sections. 

D. All 90 degree tees and 45 degree laterals (Wyes) up to and including 12" diameter tap 

size shall have a radiused entrance into the tap, produced by machine or press forming. 

The entrance shall be free of weld build-up, burrs or irregularities. 

E. Elbows in diameters 3" through 8" shall be two-section stamped elbows. All other elbows 

shall be gored construction with all seams continuous welded. Elbows shall be 

fabricated to a center line radius of 1.5 times the cross section diameter. All elbows not 

die-stamped shall be fabricated according to the following schedule: 

ELBOW ANGLE 

NO. OF GORES 

Less than 35 deg. 2 

36 deg. thru 71 deg. 3 

Over 71 deg. 5 

F. Galvanized areas that have been damaged by welding shall be coated with corrosion 

resistant aluminum paint. 

G. Pipe-to-pipe joints in diameters to 36", shall be by the use of sleeve couplings, reinforced 

by rolled beads. 

H. Pipe-to-fittings joints in diameter to 50", shall be by slip-fit of projecting collar of the fitting 

into the pipe. 

I. Insertion length of sleeve coupling and fitting collar is 2" for diameters through 9" and 4" 

for diameters 10" and up. 





J. Pipe-to-pipe and pipe-to-fitting connections in diameters above 36" shall be made by the 

loose ring "Van Stone" flange. A 5/8" flange shall be provided for the body ends of duct 

sections and fittings to act as a gasketing surface for sealing. The angle ring shall be a 

rolled welded ring 2" X 2" X 3/16". 

K. Bolt hole spacing for angle rings shall not exceed 6". 

2.04 HOUSINGS AND PLENUMS 

A. Furnish and install all housings and plenums indicated on the drawings in connection 

with the air intakes, etc. The housings shall be prefabricated Uni-Housing system as 

manufactured by United McGill, Industrial Acoustics, Haakon or approved equal. 

Housing construction shall be of double wall #18 gauge galvanized sheet steel properly 

reinforced with 2" X 2" X 1/4" vertical angles on sides of housings and 3" X 3" X 1/4" 

horizontal angles on top of housing spaced no more than 24" on center. Provide 2” of 

3#/ft3 insulation between the metal walls. 

B. Angle irons and projections shall be installed on the interior of the housing to give a 

smooth exterior for insulation. Angle iron stops shall be installed around access panels 

and doors on exterior of housing to provide stops for insulation. 

C. No floors will be required for housings resting on concrete floors, however, 2" angles 

shall be grouted and bolted to floor all around and shall be made airtight. 

D. Access Doors: Doors shall be prefabricated heavy-duty type HF series as manufactured 

by Cesco, Greenheck or approved equal, complete with the following: 

2.05 DAMPERS 

1. Double wall galvanized steel construction with 2” of 3#/cubic foot density 

insulation. 

2. 4” wide X 60” high unless noted otherwise on the plans. 

3. 12” X 12” wire glass. 

4. Continuously hinged and gasketed with two level handled latches per door. 

Latches shall be operable from either side of the door. 

5. Mitered, flanged and gasketed frames. 

A. Furnish and install all dampers indicated on the drawings at all branch takeoffs from the 

main vertical or horizontal ducts and at all locations required to properly balance the 

supply, return or exhaust systems. 

B. Dampers shall be butterfly, or multi-louvered type, fabricated of #16 gauge galvanized 

steel. Dampers over 10" in width shall be multi-louvered type with blades not over 10" in 

width. Multi-louvered dampers shall be interconnected by linkage at the midpoint of each 

damper blade. 

C. Each damper shall be supported by an end bearing plate similar to Young Regulator 

Company No. 656. 

D. Surface mounted quadrant damper regulators shall be Young No. 401 for each damper 

located in exposed ductwork. 






E. Damper regulators located above plastered ceilings or concealed spaces shall be Young 

No. 301 concealed regulator with chrome plated cover and screws. Regulator shall be 

adaptable to 5/16" or 3/8" cold rolled steel damper rod and shall be adjusted and locked 

with a key. 

F. Provide all necessary adaptors, couplings, rods and bearing sets necessary for a 

complete installation of all dampers. 

G. Young No. 900 operator shall be used on all splitter dampers. 

2.06 FIRE DAMPERS 

A. Furnish and install fusible link fire dampers at all locations indicated on the drawings and 

all other locations required by the State Fire Marshall, the National Board of Fire 

Underwriters, and prevailing codes. Fire dampers shall have ratings as required by the 

general construction. See the architectural plans for ratings. 

B. Fire dampers shall be constructed in accordance with NBFU Bulletin No. 90A. 

C. Dampers shall be designed to close automatically with the flow of air and remain closed 

by the use of a spring clip. Hinges or gearings shall be made of corrosion resistant 

material. Provide a #16 gauge sleeve, approved access door, counterweight or spring 

and fusible link as shown; a #16 gauge galvanized steel sleeve shall extend through the 

full thickness of the wall. 

D. The fusible link shall be designed to melt 50 degrees above the maximum temperature 

normally encountered. 

E. Dampers located behind grilles or registers shall have the linkage and spring catches 

accessible by removing the grille or register. 

F. All sleeves and damper units shall be painted with a rust inhibitive metal primer paint 

except for galvanized metal parts. 

G. Dampers shall be minimum nominal 90% free area type (Model F2) as manufactured by 

Tuttle & Bailey. Determine clearance for all dampers and notify architect/engineer if 

there is conflict with ceiling, etc. 

2.07 CONNECTIONS TO MISCELLANEOUS EQUIPMENT 

A. This contractor shall furnish and install all ductwork as shown on the drawings for 

equipment furnished by others. All necessary transitions, angles, bracing and hangers 

for connection to the equipment shall be furnished and installed. 

2.08 GRILLES, REGISTERS, DIFFUSERS 

A. Furnish and install all grilles, registers and diffusers of size and location as scheduled on 

the drawings. All grilles, registers and diffusers shall be fitted with gaskets, drawn tight to 

the surface, and securely fastened to eliminate gaps and dirt streaking. Ducts behind 





grilles, registers and diffusers shall be rigidly fastened and extra screws shall be added if 

necessary to draw the grilles, registers and diffusers tight to the surface. 

B. At all points indicated on the drawings, furnish and install individually adjustable 

deflecting vanes that will deflect the supply air for even distribution through a supply 

grille, register or diffuser. 

C. Grilles, registers and diffusers of Titus are listed on the drawings, however, products of 

Krueger, Price, Nailor, Tuttle and Bailey or Carnes manufacture, fully complying with the 

specifications, will be accepted. 

2.09 DUCT ACCESS PANELS 

A. Duct access panels shall be provided at all locations shown on the drawings and at all 

filters, reheat coils, fire damper, motorized dampers, control equipment, and at any 

location necessary for duct or equipment inspection or adjustment. 

B. Duct access panels shall have a minimum size of 24" X 24" or 2" smaller than the duct 

for ducts under 24" in width or depth. 

C. Duct access panels shall be Cesco, HAD-10 Series or approved equal of double wall 

insulated galvanized steel construction with one side of the access panel continuously 

hinged. The other side of the access panel shall be provided with cam latches. 

D. Duct access panels shall be provided upstream and downstream of booster coils. 

2.10 DUCT SLEEVES 



walls, floors or partitions. All sleeves shall be fabricated of new material, cut square and 

reamed. 

B. Furnish and install sleeves at all locations where ducts pass through walls, floors or 

partitions. Sleeves shall be fabricated of 16 gauge galvanized iron with angle iron 

stiffeners as required to prevent bending. 

C. Sleeves shall be 1/2" larger in dimension than the duct passing through and shall be 1/2" 

larger than through-going insulated duct. 

D. Sleeves passing through finished walls, ceilings and partitions shall be set flush with the 

finished surfaces. 

E. Sleeves through floors in exposed and concealed areas shall be extended 2" above the 

finished floors and shall be finished off with a 2” angle iron caulked and sealed for a 

watertight assembly. 

F. Seal the space between all sleeves and pipe or ducts passing through floors in exposed 

or concealed areas with fire resistant packing and install a 1" depth of plastic caulking 

compound flush with the top of the sleeves. Plastic caulking compound shall be Prestite 

or Dura-Gum. 






G. Generally, no sleeves will be required through slabs on grade. Sleeves shall be set and 

maintained in place by the contractor pertaining to contractor's work during the progress 

of the work and during the pouring of the floor slabs or walls. 

H. Cutting of new floors will not be permitted without the consent of the architect/engineer. 

2.11 TURNING VANES 

A. Provide commercial turning vanes such as "duct-turns" or approved equal, or construct 

the vanes to conform with the following requirements. Vanes shall be well braced and 

rough or raw edges shall be avoided to prevent objectionable noise; they shall be the 

double thickness type and shall be the same gauge as the duct in which they are 

installed. Vanes shall be preassembled on runners before being installed in the elbow. 

Vanes shall conform to the following table: 

Inside Outside 

Duct Vane Blade Blade Runner 

Width Spacing Radius Radius Width 

Inches Inches Inches Inches Inches 

Up to 25 1 1/2" centers 2 1 5 

Above 25 3 1/4" centers 1 1/2 2 1/4 9 

2.12 TAKE-OFF FITTINGS 

A. Manufactured spin-in conical converging type constructed of galvanized steel. 

B. Use for all round take-offs from low or high pressure ductwork. 

C. Provide with factory installed locking type balancing damper where installed on 

downstream side of variable air volume boxes or where indicated on the drawings. 

D. All exposed edges of take-off openings in ductwork shall be completely enclosed by the 

fitting to prevent air leakage. In addition, seal with a bead of mastic. 

2.13 GRAVITY BACKDRAFT DAMPERS 

A. Ruskin BD6 or approved equal. 

B. Extruded aluminum frames and blades, 1/2" diameter, cycoloy 300 bearings, vinyl blade 

seals, jamb seals and adjustable counter-balance. 

2.14 COMBINATION FIRE AND SMOKE DAMPERS 

A. Furnish and install at locations shown on plans combination fire and smoke dampers 

meeting or exceeding the following specifications. 

B. Frame shall be a minimum of 16 gauge galvanized steel formed into a structural hat 

channel shape with tabbed corners for reinforcement. 

C. Bearings shall be stainless steel sleeve turning in an extruded hole in the frame. 





D. The blades shall be airfoil shaped double skin construction with 14 gauge equivalent 

thickness with opposed blade action. Blade edge seals shall be silicone rubber designed 

to withstand 450 degrees F. and jamb seals shall be stainless steel flexible metal 

compression type. 

E. Each combination fire/smoke damper shall be 1-1/2 hour or 3 hour fire rated under UL 

Standard 555 and shall further be classified by Underwriters Laboratories as a leakage 

rated damper under the latest version of UL555S and bear a UL label attesting to same. 

See the architectural plans for general construction ratings. Damper manufacture shall 

have tested and qualified with UL, a complete range of damper sizes covering all 

dampers, required by this specification. Testing and UL qualifying a single damper size is 

not acceptable. The leakage rating under UL555S shall be no higher than leakage Class 

I (4 cfm/ft. at 1" w.g. and 8 cfm/ft at 4" w.g.). As part of the UL qualifications, dampers 

shall have demonstrated a capacity to operate (to open and close) under HVAC system 

operating conditions with pressures of at least 4" w.g. in the closed position and 4000 

fpm air velocity in the open position. In addition to the leakage ratings already specified 

herein, the combination fire/smoke dampers shall be qualified under UL555S to an 

elevated temperature of 250 degrees F. 

F. Manufacturer shall provide factory assembled sleeve of 16" minimum length (contractor 

to verify requirement). Sleeve shall be 20 gauge for dampers through 36" X 48" and 18 

gauge above 36" X 48". 

G. Damper assembly shall be factory cycled ten times to assure operation. 

H. Each damper shall be complete with an electric fuse link that shall active at 165 degrees 

F. and close damper in a locked position. 

I. Damper actuators shall be normally closed, 120 volt type and shall be U.L. labeled per 

UL555S for smoke damper applications at temperatures in excess of 250 degrees F. 

Damper power requirements shall not exceed 100 watts. 

J. Manufacturers shall be Ruskin, Model FSD60, Prefco, Greenheck or approved equal. 

K. Coordinate smoke detector installation and damper wiring requirements with Division 16 

contractor. 

2.15 SMOKE DAMPERS 

A. Furnish and install at locations shown on plans smoke dampers meeting or exceeding 

the following specifications. 

B. Frame shall be a minimum of 16 gauge galvanized steel formed into a structural hat 

channel shape with tabbed corners for reinforcement. 

C. Bearings shall be stainless steel sleeve turning in an extruded hole in the frame. 

D. The blades shall be airfoil shaped double skin construction with 14 gauge equivalent 

thickness with opposed blade action. Blade edge seals shall be silicone rubber designed 






to withstand 450 degrees F. and jamb seals shall be stainless steel flexible metal 

compression type. 

E. Each smoke damper shall be classified by Underwriters Laboratories as a leakage rated 

damper under the latest version of UL555S and bear a UL label attesting to same. 

Damper manufacture shall have tested and qualified with UL, a complete range of 

damper sizes covering all dampers required by this specification. Testing and UL 

qualifying a single damper size is not acceptable. The leakage rating under UL55S shall 

be no higher than leakage Class I (4 cfm/ft at 1" w.g. and 8 cfm/ft at 4" w.g.). As part of 

the UL qualifications, dampers shall have demonstrated a capacity to operate (to open 

and close) under HVAC system operating conditions with pressures of at least 4" w.g. in 

the closed position and 4000 fpm air velocity in the open position. In addition to the 

leakage ratings already specified herein, the combination fire/smoke dampers shall be 

qualified under UL555S to an elevated temperature of 250 degrees F. 

F. Manufacturer shall provide factory assembled sleeve of 16" minimum length (contractor 

to verify requirement). Sleeve shall be 20 gauge for dampers through 36" X 48" and 18 

gauge above 36" X 48". 

G. Damper assembly shall be factory cycled ten times to assure operation. 

H. Damper actuators shall be normally closed, 120 volt type and shall be U.L. labeled per 

UL555S for smoke damper applications at temperatures in excess of 250 degrees F. 

Damper power requirements shall not exceed 100 watts. 

I. Manufactures shall be Ruskin, Model FSD60, Prefco, Greenheck or approved equal. 

J. Coordinate smoke detector installation and damper wiring requirements with Division 16 

contractor. 






BLANK PAGE 







DUCTWORK CLEANING 

PART 1 

GENERAL 

1.01 SCOPE 

A. Section 23 01 00, HVAC General Provisions of this project manual applies to all work 


1.02 DESCRIPTION WORK 

A. The work involved in this section of the specification and accompanying drawings consist 

of cleaning the interior of all existing ductwork systems identified to remain on the 

mechanical drawings. 

B. Scope of work shall also include cleaning the interior of existing air handling equipment to 

remain. 

C. Interior of air shafts shall be cleaned. 

D. Ceiling plenum spaces shall be cleaned. 

E. Coordinate removal of existing ceilings to provide cleaning above the ceilings prior to 

removal of existing ceilings to provide for containment of dust and debris currently 

located above the ceilings. 

1.03 RELATED WORK SPECIFIED ELSEWHERE 

A. Section 23 05 00 – HVAC BASIC MATERIALS AND METHODS 

B. Section 23 34 00 - AIR DISTRIBUTION EQUIPMENT 

C. Section 23 31 00 - AIR DISTRIBUTION DUCT SYSTEM 

PART 2 

PRODUCTS 

A. Not applicable to this section. 

PART 3 

EXECUTION 

3.01 CLEANING OF EXISTING DUCTWORK 

A. Completely clean existing duct systems and air handling units to remain. Cleaning of 

systems shall be conducted by Vac Systems Industries, Mavo Systems, KMS, DCI or 

approved equal. 

HVAC UPGRADE PROJECT 233190 - 1 of 4 DUCTWORK CLEANING




B. Prior to the cleaning of existing ductwork, submit a plan to the Architect/Engineer 

coordinating phasing of work and any total or partial shutdown of the ductwork system 

required. 

C. Install at predetermined and selected locations into the Air Systems the required quantity 

of Access Points. Actual position to be predetermined and approved by prior to 

installation. Contractor shall show exact locations on drawings of the existing ductwork 

systems. 

D. Receive approval from Architect/Engineer and install Access Points in new ductwork for 

future system cleaning. Provide protection of areas downstream from receiving 

particulates during the installation of access points. 

E. Coordinate the installation of approved new access panels required for the duct cleaning 

process with the General Contractor. 

F. Prior to commencement of any cleaning, seal off area to prevent any air borne 

particulates from leaving area. All air exhausted from the cleaning process shall be 

filtered through a 99.97% HEPA filter. 

G. Equipment which generates noise such as the vacuum unit and the air compressor shall 

be isolated from occupied areas or as directed by the Owner's Representative. 

H. Upon completion of cleaning a ductwork section, visually inspect using the fiberoptic 

borescope to ensure that no areas are left uncleaned. Photograph interior areas of 

ductwork using the borescope and include photos in Post Project Report. At this time, 

allow a spot check inspection by Architect/Engineer. Any areas found not clean shall be 

redone and rechecked by Architect/Engineer before proceeding to the next section of 

ductwork. 

I. Cut no holes except those required to install the Access Points into the ductwork for 

cleaning purposes. 

J. All diffusers, grilles and registers in affected ductwork shall be removed vacuum cleaned, 

washed and reinstalled unless indicated otherwise. 

K. All access holes larger than a 1" diameter shall be sealed with galvanized sheet metal of 

the same gauge as the existing ductwork and in compliance with the latest edition of 

SMACNA. 

L. Apply silicone chalking around all access holes. 

M. All surrounding work areas shall be thoroughly cleaned after work is completed. 

N. In all areas, prior to start up of system, cover all openings with a temporary cheesecloth 

(30 percent per ASHRAE Standard 52-68). Remove cheesecloth three hours after 

startup. 

O. Provide covers as required to protect Owner's equipment and furnishing from damage 

during the cleaning operation. 

DUCTWORK CLEANING 233190 - 2 of 4 HVAC UPGRADE PROJECT




P. Provide post project report. Include photographic evidence of both pre and post 

conditions in the Post Project Report. The Contractor is responsible for leaving all 

individual units in the operating mode. 

Q. Upon completion of cleaning existing air systems, submit to the Engineer a composite 

layout of the ductwork systems, showing photo locations and all positions of Access 

Points. Each Access Point shall be labeled with the size of opening. 

R. The Post Project Report shall be delivered to the Architect/Engineer upon completion of 

work. 

S. Pressure wash all coils to insure thorough cleaning. Vacuum water from all areas of coil 

and ductwork. Allow proper drying time before placing coil back in service. Water will 

not be allowed to go over two feet on either side of coils. Provide waterproof membrane 

and/or drain pan under coil to prevent damage to ceiling or equipment under ductwork. 

T. Thoroughly clean fan blades of existing fans to be reused. Use damp cloth to wipe 

blades clean. 

3.02 Return Duct Shaft 

A. Scope of work shall include removal of the existing return duct liner material in 

accordance with the requirements of Article 3.01 in this Section. 

B. Patch/Seal existing metal where stick pins previously penetrated the metal material. 

C. Remove any glue/adhesive from the previous installation. 

D. Level of cleaning shall provide a like new clean surface to allow installation of new selfadhering 

closed cell insulation as duct liner material. 

3.03 Cleaning of Existing Finned Tube Radiation Elements 

A. Remove existing covers/enclosures after new sheet rock work is complete. 

B. Use compressed air to remove dust/debris on the elements. Provide dust collection with 

HEPA filtration as specified in 3.01. 

C. Wipe between elements with a wet cloth soaked in a mild detergent to remove and 

dust/debris not removed by the air. 

D. Reinstall the old covers/enclosures. Provide new hardware and fasteners where 

required.” 






BLANK PAGE 







AIR DISTRIBUTION EQUIPMENT 

PART 1 

GENERAL 

1.01 SCOPE 


and install the fans, blowers, and factory assembled heating, ventilating and air 

conditioning units. 

PART 2 

EQUIPMENT 

2.01 FAN DRIVES 

A. All belt drive fans and air handling units shall have Gates, Dodge, Goodyear or Browning 

drives selected to conform with the following requirements. 

B. All V-belt drives shall be equipped with adjustable pitch motor sheaves. 

C. All adjustable motor sheaves shall be selected to produce the specified fan speed while 

operating at approximately the midpoint of the motor sheave pitch adjustment. 

D. All V-belt drives shall be sized at least 50% above operating horsepower requirements. 

E. All drives shall be supplied with at least the minimum number of belts as outlined below 

with respect to motor horsepower: 

0 - 1 1/4 HP 1 belt 

2 - 7 1/2 HP 2 belts 

F. High capacity belts will be acceptable for all nonintermittent loads; that is, applications 

when the fan will not start and stop more than once per day. Standard belts will be 

required for all intermittent loads. 

G. All drives are to be selected to maintain belt speeds of from 3,500 to 4,500 FPM where 

space will permit. 

2.02 BELT GUARDS 

A. All fans shall be furnished and installed with guards to enclose all belt drives, drive 

sheaves and rotating equipment. These guards are to be constructed of 20 gauge 

galvanized steel with 16 gauge 3/4" diamond mesh screen or expanded metal. The 

mesh screen or expanded metal shall be spot or stitch welded to the frame. The guard 

shall be supported on bracket from the floor or fan base. Openings shall be provided in 

guards to permit tachometer readings for both motor and driven unit. Guards shall 

comply with the requirements of the Minnesota Industrial Commission and be designed 

for easy removal for belt replacement. 

HVAC UPGRADE PROJECT 233400 - 1 of 4 AIR DISTRIBUTION EQUIPMENT




2.03 EXISTING AIR HANDLING UNIT MODIFICATIONS 

A. Provide each unit with two complete sets of pre-filters and final filters. 

1. Pre-Filters shall be 2” thick 30% efficient per ASHRAE Standard 52—Merv 7. 

2. Final Filters shall be 12” thick 90% efficient per ASHRAE Standard 52—Merv 13. 

3. Provide frame accessories as required to allow installation of the filters. 

B. Replace existing fan motors with new premium efficiency fan motors as indicated on the 

plans. 

C. Provide new drive sets as required to accommodate higher static and to achieve design 

air volume specified on the Building Balance Schedule. 

2.04 VARIABLE AIR VOLUME BOXES 

A. Furnish and install Titus, Environmental Technologies, Carnes, Trane or approved equal 

Variable Air Volume Terminal Units of the size, capacity and performance as shown on 

the plans. VAV Boxes shall be pressure independent with multi-point averaging velocity 

pressure sensor mounted in box inlet. 

B. The air pressure drop through the terminal units shall not exceed values tabulated on the 

plans. All performance data shall be tested in accordance with ADC/ARI Industry 

Standard 880. 

C. Valve assembly to be constructed of galvanized steel with the damper mechanically 

fastened to a 3/8" shaft and isolated from the casing to eliminate the possibility of damper 

binding due to shipping or handling damage. Housing shall be constructed of 24 gauge 

galvanized steel. 

D. The valve shall be sealed and gasketed for minimum leakage. The average valve 

leakage of all unit sizes combined shall not exceed 1% at 3" inlet static pressure. 

E. Units shall be double wall construction where two layers of galvanized sheet metal 

encase 1/2" thick insulation. 

F. Actuators and volume controllers shall be furnished by Section 230900 and factory 

mounted by the VAV box manufacturer. Coordinate the installation with the successful 

Section 230900 Contractor/Manufacturer. 

G. Hot water reheat coils shall be S and Drive or flange connected as an integral part of the 

terminal unit. If insulation is required, it must be field supplied and installed. One and 

two row coils shall be constructed using 3/8" O.D. staggered copper tubes, 1-1/4"x1.08" 

rippled fins 0.0006" thick. Fin spacing shall be 10 F.P.I. Standard tube wall thickness is 

.017". Coil connections shall be either right or left hand. Reheat boxes shall be provided 

with an integral access panel located upstream of the coil. 

AIR DISTRIBUTION EQUIPMENT 233400 - 2 of 4 HVAC UPGRADE PROJECT





2.05 WALL MOUNTED PROPELLER FANS 

A. Provide Greenheck, Carnes, Penn, Acme or approved equal wall mounted prop fans of 

quantities and capalities indicated on drawings. 

B. Blades shall be die formed aluminum riveted to a steel hub. 

C. Fans shall be belt driven axial type complete with OSHA approved fan and motor guard. 

D. Fan panel shall be steel construction with prepunched mounting holes, formed flanges 

and a deep spun venturi all with an epoxy based finish. 

E. Fans shall be complete with neoprene vibration isolators. 

F. Fans shall bear AMCA seal for air performance. 

2.06 EXISTING RETURN FAN MODIFICATIONS 

A. Replace existing existing fan motors with new premium efficiency motors as noted on the 

plans. 

B. If required, provide new drive set to achieve air volume noted on the plans. 

PART 3 

EXECUTION 

3.01 GENERAL 

A. Install fan systems in accordance with manufacturers recommendations. 

3.02 EXISTING AIR HANDLING UNITS 

A. Provide filters as specified. Modify existing filter racks as required to allow installation of 

pre-filters and final filters. 

B. Provide new drive sets as required to accommodate more static for the final filters and to 

achieve air volume indicated on the plans. 

C. Coordinate Cleaning requirements of the units. 

D. Replace existing fan motors with new premium efficiency motors of size indicated on the 

plans. 

3.03 EXISTING RETURN FANS 

A. Replace existing fan motors with new premium efficiency motors of size indicated on the 

plans. 

B. Provide new drive sets if required to achieve air volume indicated on the plans. 


HVAC UPGRADE PROJECT 233400 - 3 of 4 AIR DISTRIBUTION EQUIPMENT




BLANK PAGE 

AIR DISTRIBUTION EQUIPMENT 233400 - 4 of 4 HVAC UPGRADE PROJECT

Education Building - 95% Mechanical Specifications

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