specs

D. Units shall contain hermetic multi-cylinder compressors, which shall have positive constant
pressure lubrication. Units shall contain indoor and outdoor coils, of non-ferrous construction with
aluminum plate fins mechanically bonded to seamless copper tubing with all joints brazed.
E. The supply fans shall be capable of delivering required cfm of air against external static pressure
scheduled. The supply fans shall be centrifugal type, belt driven by permanently lubricated
motors and variable sheaves.
F. Condenser fans shall be propeller type, direct driven by permanently lubricated motors.
G. Refrigeration system shall be protected by high and low pressure stats, loss of charge and indoor
coil freeze-up protection devices, current and temperature sensitive compressor motor protectors,
and a device which prevents starting of compressor more than once every five minutes.
H. Rooftop units as scheduled shall be combined heating, electric cooling units with ARI certified
rating.
I. Units as scheduled will have economizers, motorized outside air dampers and motorized relief
dampers. The mechanical contractor shall field install the economizer hood shipped with the unit.
J. Prior to final acceptance, unit manufacturer shall furnish, in triplicate, certification that rooftop
units are installed and operating in accordance with plans and specifications and all safety
controls are functioning satisfactorily.
K. Certain units shall have a factory installed GFI weather proof convenience receptacle. The
receptacle shall be powered by the electrical contractor.
L. The units shall have factory installed filter racks and access doors with one set of filters installed.
The filters shall 2” pleated media (refer to the filter paragraph below for specification). Refer to the
schedule for additional options and accessories.
M. Theatre rooftop units shall be Lennox. The outside air controller (from the CO2) shall be
proportional, not stepped.
2.12 EQUIPMENT ELECTRICAL REQUIREMENTS
A. All equipment with integral heaters, motors and devices which require electrical voltage or phase
voltage different from primary service voltage to the unit shall be internally equipped with
transformers so only a single electrical service is required to the unit.
B. If the electrical characteristics of the equipment actually furnished differs from that scheduled, the
HVAC contractor is responsible for:
1. Coordinating the changes with the electrical contractor
2. The cost incurred by the electrical contractor associated with the change.
3. Design costs associated with the change required for resubmission to the governing
authorities.
2.13 INSTRUCTION AND INSTRUCTION BOOKLETS
A. Instruct Owner or representative thoroughly in proper operation of systems.
B. Provide at least two copies of instruction booklets, including simple step instructions for normal
operation, minor maintenance suggestions and control diagram.
C. After compliance with above, secure letter from Owner acknowledging same, give letter together
with two additional instruction booklets to Architect for his permanent file.
2.14 TESTING AND BALANCING
A. The Section 15034 Test and Balance (TAB) Contractor shall balance the entire system for proper
operation. Refer to Section 15034 for additional information.
B. Contractor shall provide for a second start-up of each unit at the beginning of the season opposite
that in which the system is first operated and tested.
D. The HVAC contractor shall make any changes or replacements to the sheaves, belts, dampers,
valves, etc. required for correct balance as advised by the TAB Contractor, at no additional
expense to the Owner.
Cinemark 15500 - 8 Heating, Ventilating and Air Conditioning
South Napa Century Center XD 12 EnviroDesign, Inc., Bid Issue 7-7-11