VCES-HRV-IOM-1 - HRV600i, HRV700i ... - Venmar CES Inc.

HRV
Heat Recovery Ventilators
Installation, Operation and Maintenance Instructions Manual
Capacity: 300 to 1,260 cfm
Model: HRV600i, HRV700i, HRV1200i
©2012 Venmar CES Inc.

Table of Contents
Nomenclature......................................................................................................................................................................3
Safety.Considerations..........................................................................................................................................................4
Installation...........................................................................................................................................................................4
Inspection.......................................................................................................................................................................4
Mounting.Location.Requirements................................................................................................................................4
Mounting.Options.........................................................................................................................................................5
Ductwork........................................................................................................................................................................5
Internal.Grilles.and.Diffusers........................................................................................................................................6
Drains.............................................................................................................................................................................6
Electrical.Connections...................................................................................................................................................6
Controls................................................................................................................................................................................6
General.Information......................................................................................................................................................6
Sequence.of.Operation.................................................................................................................................................7
Frost.Control..................................................................................................................................................................7
Airflow.Measurement.and.Balancing.................................................................................................................................8
Flow.Station.Positions...................................................................................................................................................8
Balancing.Procedure......................................................................................................................................................8
System.Service......................................................................................................................................................................9
Bi-monthly.Maintenance...............................................................................................................................................9
Annual.Maintenance.....................................................................................................................................................9
Appendix.A:.Mounting.Diagrams.....................................................................................................................................11
Appendix.B:.Unit.Dimensions...........................................................................................................................................12
Appendix.C:.Flow.Station.Positions..................................................................................................................................17
Appendix.D:.Drain.Connections........................................................................................................................................18
Appendix.E:.Terminal.Control.Diagrams..........................................................................................................................19
Appendix.F:.Electrical.Connection.Diagrams...................................................................................................................21
Appendix.G:.Make-up.Heat.Requirements......................................................................................................................22
Appendix.H:.Troubleshooting...........................................................................................................................................23
Manufacturer reserves the right to discontinue or change specifications or designs without notice or obligation.
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 2

HRV600i Nomenclature (300–750 cfm)
1. FROST CONTROL
D – Recirc defrost 1
E – Exhaust only
N – Non-defrost
2. ENERGY RECOVERY
P – Poly core
A – Aluminum core
H – HM core
3. EXTERNAL FINISH
W – White prepaint package
Note:
1 The recirculation defrost damper module is factory installed.
HRV700i Nomenclature (300–800 cfm)
1. FROST CONTROL
D – Recirc defrost
N – Non-defrost
HRV1200i Nomenclature (700–1,250 cfm)
1. FROST CONTROL
D – Recirc defrost 1
E – Exhaust only
N – Non-defrost
2. ENERGY RECOVERY
P – Poly core
A – Aluminum core
H – HM core
3. EXTERNAL FINISH
W – White prepaint package
C – Corrosion resistance package
Note:
1 The recirculation defrost damper module is factory installed.
Nomenclature
1 2 3 4
1 2
1 2 3 4
©Venmar CES Inc. 2012. All rights reserved throughout the world.
6. LOW SPEED
L – Reduced low speed
N – Normal low speed
5. ACCESS DOOR
S – Standard door
R – Reverse door
(right hand flow)
4. MEF FILTRATION
M – MEF supply filtration
X – No MEF supply filtration
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 3
5 6
5 6
2. EXTERNAL FINISH
C – Corrosion resistant package
6. LOW SPEED
L – Reduced low speed
N – Normal low speed
5. ACCESS DOOR
S – Standard door
R – Reverse door
(right hand flow)
4. MEF FILTRATION
M – MEF supply filtration
X – No MEF supply filtration
Illustrations cover the general appearance of Venmar CES products at the time of publication and Venmar CES reserves the
right to make changes in design and construction at any time without notice.

Warning, Caution and Important notes appear throughout
this manual in specific and appropriate locations to
alert Installing Contractors and maintenance or service
personnel of potential safety hazards, possible equipment
damage or to alert personnel of special procedures or instructions
that must be followed as outlined below.
! WaRnIng
Identifies an instruction which, if not followed, might cause
serious personal injuries including possibility of death.
CautIon
Identifies an instruction which, if not followed, might severely
damage the unit, its components, the assembly or
final installation.
IMpoRtant
Indicates supplementary information needed to fully
complete an instruction or installation.
Inspect the exterior of the unit for shipping damage by ensuring
that there is no damage to the door, door latches,
door hinges, damper, duct collars, cabinet, etc. Inspect the
interior of the unit for damage by ensuring that the fan
motors and housings, heat exchanger, insulation, dampers,
actuators and drain pans are all intact.
When determining an installation location, the unit must
be mounted in a heated area to prevent condensate drain
lines from freezing. The mounting location should be away
from occupied areas to provide quiet operation. The area
should also be easily accessible for maintenance.
IMpoRtant
These Heat Recovery Ventilators have minimum clearance
requirements when mounting. See Appendix B for
specific clearance requirements. Mounting options must
allow 6” [152 mm] clearance in front of control cover for
access.
Safety Considerations
Installation
Inspection
Mounting.Location.Requirements
Hazards may exist within this equipment because it contains
electrical and powerful moving components. Only
qualified service personnel should install or service this
equipment. Untrained personnel can perform basic maintenance
such as maintaining filters. Observe precautions
marked in the literature and on labels attached to the unit.
Follow all safety codes.
! WaRnIng
Disconnect the main power switch to the unit before performing
service or maintenance. Electric shock can cause
personal injury.
If transportation damage is found, file a claim immediately
with the transportation agency. Remove all packaging,
tape, etc. from the cabinet.
A mounting location close to an exterior partition will
minimize the length of insulated duct. The unit should be
close to a drain and 120 volt, 60 Hz power supply. The
unit should be mounted away from hot chimneys, electrical
panels and other hazards. The area should also be easily
accessible for maintenance.
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 4

There are several options for hanging or floor mounting
the unit.
IMpoRtant
In all cases, the unit must be level. Consult local building
code for restrictions in your area regarding installation.
Hang the unit with the reinforced rubber straps provided
as shown in Appendix A. Check with local building codes
regarding the use of rubber straps in commercial buildings.
Attach the straps to the unit with two #8 screws provided.
Then attach the other end of the strap to the ceiling
joists, trusses, custom frame, etc.
The unit can also be hung with 3/8” [10 mm] threaded
rod and U-channels or angles (not supplied) as shown in
Appendix A.
The supply and exhaust duct connections on the unit are
as follows:
Table 1: Supply and Exhaust Duct Connection Sizes
unit Duct Size
600 CFM or 700 CFM 14” x 8” [356 x 203 mm]
1,200 CFM 20” x 8” [508 x 203 mm]
IMpoRtant
Duct sizes are for connection purposes only. Ducts should
be sized to keep noise and pressure drop to a minimum.
The supply and exhaust ducts connected to outside, as
well as any ducts passing through an unconditioned space,
must have a minimum insulation value of R5. In addition,
a continuous integral vapor barrier over the duct insulation
must be used.
Air balancing dampers are recommended for both supply
and exhaust ducts to allow for adjustment of airflow. Also,
flexible canvas connectors should be installed close to the
unit in the supply duct to the building and the exhaust
duct from the building to reduce noise transmission from
the unit to the building (see Appendix C).
All ports on the 600 and 1,200 cfm units have 1” [25 mm]
flanges to facilitate the installation of the ductwork. Please
note that the outdoor air opening port has a frost control
Mounting.Options
Ductwork
When installing the unit, keep in mind that access to the
control panel may be required. Supply and exhaust ducts
to outside may have 1” to 2” [25 to 51 mm] of insulation
on them. Rubber vibration isolation may be required and is
recommended for quiet operation.
The unit can also be mounted on a metal or wooden
curb (not supplied) bolted to the floor as shown in Appendix
A. Space must be left under the unit to allow
connection of drain lines. A gradual slope is required for
the condensate water to drain by gravity (minimum ¼”
per foot) [6 mm per 305 mm]. If this is not possible, a
pump should be used. If attachment of the unit to the
curb is required, ensure that screws, bolts and mounting
hardware do not interfere with moving parts or that the
integrity of the cabinet insulation is not affected.
damper incorporated with it. Ensure that any mechanical
fasteners used to connect the duct do not interfere with
the operation of the damper. Screws can be installed on
the side of the cabinet rather than the flange for this port
only. For port locations see Appendix B.
All ports on the 700 cfm unit have 2” [51 mm] flanges to
facilitate the installation of the ductwork. Please note the
outdoor air opening connection is factory set to be the left
side upper port. It is possible to reverse the operation of
the frost control damper in order to use the port on top of
the cabinet for outdoor air opening connection.
To change the outdoor air opening from the side to the
top use the following directions. For port locations see Appendix
B.
Remove the cover of the damper motor with a flat screw
driver. Reverse the orange and red wires by moving the orange
from Terminal #2 to Terminal #3 and moving the red
wire from Terminal #3 to Terminal #2. The end result, in
order to have the outdoor air opening connection to the
top port, will be: #1 – white, #2 – red, #3 – orange.
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 5

Locate exhaust grilles and supply diffusers to provide effective
ventilation and avoid short circuiting of airflows.
Adjustable dampers should be provided at every grille and
diffuser location to make balancing of the system possible.
A proper selection of style and size of grilles and diffusers
is required to minimize pressure drop. The velocity of the
airflow should not exceed 400 feet per minute [2 meters
per second] for normal applications.
The drain fittings provided with the unit will accept a ¾”
[19 mm] NPT coupler (supplied by others). The drain line
for the unit must be fabricated on site and connected to
the building main. A loop in the hose or trap in the copper
or plastic pipe must be provided to prevent sewer gases
from entering the unit when connecting to a drain as illustrated
in Appendix D.
power
A terminal block and strain relief bushing or a junction box
is provided for line voltage to make the necessary power
connections.
The electrical requirements are as follows:
Table 2: Electrical Requirements
600 CfM 700 CfM 1,200 CfM
Voltage 120V 120V 120V
MCa 9.5 6.6 14.3
Mop 12.0 9.0 20.0
fan Interlock Switch (ff)
External fan control can be achieved by connecting an
external fan source (G) through dry contacts (FF). These
contacts are closed on a call for ventilation or frost control.
Speed Selection (600 cfm/1,200 cfm only)
There are three speed settings available with the controls,
only two of which can be functional at any one time. The
units are factory set to use the low and high speed taps
Internal.Grilles.and.Diffusers
Drains
Electrical.Connections
Controls
General.Information
The duct system should be designed according to the high
speed flow rate of the unit. In order to keep the noise and
pressure drop to a minimum, a maximum air velocity of
1,100 feet per minute [5.6 meters second] should be used
in calculations in duct design. The duct runs should be
kept as short as possible with the minimum amount of elbows
and transitions. The manufacturer recommends the
use of smooth radius elbows or square elbows with turning
vanes to achieve maximum performance.
IMpoRtant
Consult local building code for plumbing requirements
in your area. If copper pipe is to be used, ensure not to
solder to the ¾” [19 mm] coupler while it is attached to
the plastic drain fitting as deformation may occur. Ensure
adequate slope is present to allow good drainage (minimum
¼” per foot [6 mm per 305 mm]).
Control Box access for Low Speed Setting
(600 cfm/1,200 cfm only)
Disconnect power to the unit. Remove the four screws
securing the cover plate as shown in Appendix F. Lift off
the control cover plate and switch the red wire as shown
in Appendix F.
on the blower motors. If necessary, the medium speed
tap can be used instead of the low speed tap. See Appendix
F for instructions on how to make this change. Units
without the remote wall control option can be shut off by
opening the contact between Low-Com or High-Com as
shown in Appendix E, Terminal Label.
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 6

Before start-up, check the unit for obstructive packaging,
objects near or in blowers, dampers, heat exchangers, etc.
Once installation is complete, check all modes of operation
to ensure that the unit is working properly. Close the
doors and check for operation on Low, Com and High.
Use a wall control or the dry contact switching to run fan
speeds as shown in Appendix E, Wall Control Connection.
The 700 cfm unit is two-speed. Low speed can be initiated
by creating a closure across Low-Com or high speed can
be initiated by creating a closure across High-Com.
unit Check points
• Power connected, no ventilation call – Both fans
are off, frost control damper (if equipped) closes off
fresh air from outside.
• Power connected, low speed call – Both fans on low
speed, internal frost control damper (if equipped)
opens fresh air from outside. If equipped with recir-
The unit functions are controlled by integrated controls in
the unit which may include exhaust only defrost or recirculation
defrost. During cold outdoor air temperatures, frost
control cycles will remove frost from the heat exchanger to
maintain continuous operation.
Exhaust only Defrost (optional)
Frost removal occurs when the supply blower de-energizes,
the outside air damper and the heat exchanger
damper close and the exhaust fan continues to draw only
warm room air through the flat plate heat exchanger to
maintain ventilation. This process removes the build-up of
ice in the heat exchanger. Frost control is initiated at an
outdoor air temperature of 23°F [−5°C]. The defrost/ventilation
cycle is time based.
! WaRnIng
A negative building pressure may develop during the exhaust
only frost control cycle with possible backdrafting
of fumes from combustion equipment.
Recirculation Defrost (optional)
The recirculation frost control cycle is electronically controlled
in response to the outside air temperature. On a
call for defrost, the outside air damper closes, the exhaust
fan is de-energized and the supply fan circulates warm
air through the flat plate heat exchanger to remove the
build-up of ice. For the HRV700i, it is possible to extend
the frost control times during very cold weather by removing
the jumper JU1-F on the circuit board. Frost control is
Sequence.of.Operation
Frost.Control
culation module, the internal frost control damper
closes recirculation opening.
• Power connected, high speed call – Both fans on
high speed, frost control damper opens fresh air
from outside. If equipped with recirculation module,
the internal frost control damper closes recirculation
opening.
• Power connected, occupied timer/sensor connection
open (unoccupied mode) – Both fans are off,
frost control damper closes fresh air from outside. If
equipped with recirculation module, the internal frost
control damper opens recirculation opening.
• Power connected, FF control contacts close during
unit ventilation or frost control cycle.
initiated at an outdoor air temperature of 23°F [−5°C]. The
defrost/ventilation cycle is time based.
Table 3: Recirculation and Exhaust Only Defrost
HRV type of
Stage
Model Defrost
Initiate
temperature
Ventilation time
(Minutes) Defrost
time/Run time
Standard Extended
Remote Wall Control (optional)
Remote mounted wall control options are solid state controls
that can be used to control the ventilators from a
remote location. The connection from the ventilator to the
control is low voltage and requires a four conductor (24
gauge minimum) LVT cable. Models are available with a
dehumidistat control and speed switching. The following
three options are available:
Standard.Wall.Control
Dehumidistat to engage high speed exchange. Slide switch
operation supporting continuous low exchange and continuous
high exchange.
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 7
600i
1200i
700i
1
2
3
1
2
3
R/E
R/E
R/E
R
R
R
23ºF
5ºF
−21ºF
23ºF
5ºF
−21ºF
−5ºC
−15ºC
−30ºC
−5ºC
−15ºC
−30ºC
12/60
12/24
12/12
6/60
6/32
6/19
N/A
N/A
N/A
10/28
10/28
10/15

Xtra.Wall.Control
Dehumidistat to engage high speed exchange. Electronic
push button operation supporting intermittent (standby)
ventilation, continuous low exchange, continuous high
exchange, maintenance indicator light and exchange indicator
light.
Aqua.Air.Wall.Control
Ideal for pool dehumidification. Dehumidistat to engage
high speed exchange. Electronic push button operation
supporting intermittent (standby) ventilation, continuous
low exchange, continuous high exchange, maintenance
indicator light and exchange indicator light.
Airflow Measurement and Balancing
Once installation is complete, the supply and exhaust airflows
should be balanced to ensure proper operation and
a good quality installation. A well designed duct system
with properly sized duct runs and equal static pressure
losses of both the supply and exhaust will aid in balancing
the unit. However, it will be necessary to take flow
Whether flow stations are permanently installed or used
temporarily, the position they are placed in is very important
to ensure accuracy as shown in Appendix C. The best
locations for mounting the FMS is in the long straight sections
of ducting where airflow has stabilized across the
area of the duct. This position will provide the most accurate
measurements.
The next best location for the FMS is immediately before
or after a 90 degree elbow and 12” [305 mm] from any
damper. In straight sections of pipe, the FMS should be
installed at least 30” [762 mm] from any fan outlet. This
applies to the supply air opening connection on the heat
recovery ventilator and the exhaust air opening connection.
Before proceeding with balancing, all windows, overhead
doors and walk-in doors should be closed and exhaust systems
should be turned off.
The connections between the flow stations and the ducts
must be sealed with tape. Mount the magnehelic gauge in
a convenient location where it is level and will not vibrate
or be bumped. Zero the gauge. Measure the exhaust air
first as it is often the lowest due to a longer duct system.
With the fan speed at maximum, connect the hoses from
the FMS to the magnehelic gauge. If the needle falls
Flow.Station.Positions
Balancing.Procedure
measurements with the proper equipment to ensure a
balanced system. Magnehelic gauges and flow measuring
stations (FMS) are available for 14” x 8” [356 x 203 mm]
or 20” x 8” [508 x 203 mm] rectangular duct and a range
of round duct sizes. Please ask your supplier for more information.
With airflow measuring stations permanently installed,
balancing is done by measuring airflow on one side of the
heat recovery ventilator and then the other. Adjustments
can then be made to the damper to equalize airflows.
When using the temporary method, an FMS is installed in
one air duct of the heat recovery ventilator and the flow
recorded. The FMS is then relocated to the other air duct
and the airflow is recorded again. Dampers can then be
adjusted to equalize airflow. This procedure should be repeated
to ensure that the unit is balanced properly.
below zero, reverse the hose connections. Ensure that the
damper is wide open. Take a reading from the magnehelic
gauge and record it. Remove the FMS and place it in the
supply duct. This process is not necessary if the FMS is to
be permanently mounted.
Repeat the procedure. If the reading is higher in the supply
duct, adjust the damper until the reading is the same.
If the reading is lower, return the FMS to the exhaust duct
and adjust the damper to obtain the same reading as the
supply duct.
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 8

! WaRnIng
Disconnect power before maintaining the unit.
Bi-monthly maintenance should include:
air filters
The standard foam filters are washable. Under normal
conditions it is recommended that they be cleaned every
two months. More frequent cleaning may be required
under extremely dirty operating conditions. Use a vacuum
cleaner to remove the heaviest portion of accumulated
dirt, then wash with warm water.
A medium efficiency filter for the supply airstream is available
from your supplier. This filter is disposable and should
be replaced when it becomes dirty.
MEF filter (optional)
Figure 1: Filters – 600 cfm and 1,200 cfm
Annual maintenance should include:
air filters
Vacuum and wash standard foam filters. Replace medium
efficiency filter if present.
Drain pans and Interior of unit
Wash the foil faced insulation surfaces and wipe the drain
pans with a soft cloth and mild cleaning solution. Check
the drain fittings to ensure they are draining freely.
flat plate Heat Exchanger
! WaRnIng
Hot water and strong cleaning agents could damage the
heat exchanger. Ensure the heat exchanger is returned to
the unit in the correct orientation. Failure to do so may
result in damage to the exchanger. Follow instructions on
the label.
The flat plate heat exchanger must be handled with care.
Remove the flat plate heat exchangers by sliding them out
System Service
Bi-monthly.Maintenance
Washable foam filter
Annual.Maintenance
Drain pans and Interior of unit
With the filters removed from the unit, the foil faced insulation
surfaces and drain pans should be wiped clean with
a soft cloth and mild cleaning solution. Ensure that the
drain fittings are free from dirt and draining freely.
Washable
foam filter
Figure 2: Filters – 700 cfm
Washable foam filter or
MEF filter (optional)
from the tracks holding them in place. In order to ensure
maximum efficiency of the partitions, it is recommended
that the heat exchanger be cleaned once a year following
the season of most intense use. For polypropylene and aluminum
media, allow the heat exchanger to soak for three
hours in warm water and mild soap. Rinse under a heavy
stream of water. For HM heat exchangers, use a vacuum
cleaner or low pressure air. It is not recommended to use
solvents or detergents as these may damage the media
or structure of the heat exchanger. When replacing the
flat plate heat exchanger sections, ensure they are of the
proper vertical orientation. Failure to do so may result in
low airflow on the exhaust airstream due to system pressure
trapping or holding condensate in the flutes.
fans
Blower wheels and fan housing should be checked for
dirt buildup. If they appear dirty, it may be necessary to
remove the blower assembly and then vacuum the dust
out through the fan mouth. See Figure 3 and Figure 4 for
instructions on removing the blower assembly.
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 9

System operation Check
Verification of all control modes should be checked to ensure
proper operation. Refer to Sequence of Operation.
testing and Replacement of the Damper
actuator
Check damper operation by switching between Low-Com
or High-Com on the dry contact terminal or by switching
through the modes on the optional remote wall control.
If the damper does not respond in one or both directions,
check all connections.
700.cfm.Only
Check for 24 volt output between the white/red and the
white/orange wires at the damper motor. If 24 volts can
be measured at the damper motor, the problem is either
in the connections, the frost control relay or the main circuit
board.
600.and.1,200.cfm.Only
CautIon
120 VAC.
With the unit powered but off, check for 120 volt output
across the white/black wires. If 120 volt can be measured
at the motor, replace the motor. If 120 volt cannot be
measured at the motor, check for 120 volts across pins
J1-9 and J1-1 at the printed circuit board.
Main Circuit Board Replacement
The main circuit board must be replaced if an electronic
problem arises. For example, the unit suddenly stops, the
unit stays in frost control mode all the time or if control
functions are not working properly.
Ensure that power is reaching the board. Test the blower
motors and damper actuators for operation when directly
connected to the appropriate power voltage. If the motor
and damper actuators function normally, replace the main
circuit board.
Motor and Blower Removal and Installation
Disconnect power from the unit. To determine if the fan
motor is burned out, disconnect the four-wire service
connector between the motor and cabinet. Connect the
motor directly to a 120 volt power source with an electrical
cable as follows:
Table 4: Motor Connections
Red + White Low speed
Blue + White Medium speed
Black + White High speed
If the motor functions normally, there is a problem with
the wiring connections or the main circuit board. Check all
wiring and replace main circuit board if necessary.
If the blower does not run, it must be replaced. To replace
the motor, remove the flat plate heat exchanger from the
unit. Disconnect the four-wire service connector from the
unit. Remove the fasteners holding the motor assembly
in place. Lift the assembly up and out, using one hand
under the motor and one hand to steady it. Remove the
assembly carefully from the unit to avoid damage to the
insulation, shelf, etc. Install the repaired motor assembly
by following these instructions in reverse.
Remove these
two screws
Locking plate
Capacitor
Figure 3: Blower assembly removal – 600 cfm and 1,200 cfm
Figure 4: Blower assembly removal – 700 cfm
Thumbscrew
Service
connector
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 10

Reinforced
rubber strap
Appendix A: Mounting Diagrams
Recirculation
module
Recirculation
module
Bolt to floor
Space must be left to allow connection of
drain lines with adequate slope for drainage
Figure A1: Mounting – 600 cfm and 1,200 cfm
Dry contacts
Figure A2: Mounting – 700 cfm
U channel
(supplied by others)
Rubber vibration isolator
(supplied by others)
Wooden curb (supplied by others)
3/8” [10 mm]
threaded rod
(supplied by others)
Cabinet mounted
U channel
Rubber vibration
isolator
Note: Diagrams show standard unit configuration.
For units with the reversed door option, the door
will be located here.
Dry contacts
3/8” [10 mm]
threaded rod
(supplied by others)
Bolt to floor
Wooden curb
(supplied by others)
Space must be left to allow
connection of drain lines with
adequate slope for drainage
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 11

Notes: Dimensions in [ ] are millimeters.
Center of gravity
Direction of airflow
B
A
12.005”
[305]
HM Core
Kg
19
12
25
16
72
LBS
41
27
56
35
159
PTS
A
B
C
D
Total
Aluminum Core
PTS LBS Kg
A 40 18
B 26 12
C 55 25
D 34 15
Total 155 70
Kg
17
11
24
15
67
HRV600i
Poly Core
PTS LBS
A 38
B 25
C 52
D 33
Total 148
Connection Table
Connection Sizes
Line voltage in 14 gauge wire nut
Condensate drain fitting (2x) 3/4” MPT
C D
13.375”
[340]
Appendix B: Unit Dimensions
TOP VIEW
28.005”
[711]
23.500”
[597]
34.000”
[864]
5.859" [149]
A Line voltage
6.500”
[165]
14.000”
[356]
Strap mounting
location
2.750”
[70]
Figure B1: Unit dimensions – 600 cfm (with exhaust only defrost)
A
B
14.000”
[356]
4.000”
[102]
4.028”
[102]
8.000”
[203]
Exhaust air
Exhaust air
opening
8.000”
[203]
Outdoor air
opening
Outdoor air
24.500”
[622]
4.000” [102]
8.000”
[203]
4.000”
[102]
Supply air
Low voltage
terminal strips
8.000”
[203]
Return air
opening
Return air
Supply air
opening
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 12
3.535” [90]
Control box
access
14.103”
[358]
7.705”
[196]
5.125”
[130]
19.207”
[488]
10.005”
[254]
B Condensate drain
Note: For units with the reversed door option, interior
components will appear as a mirror image of the above diagram.
Reversed
door option
RIGHT VIEW
FRONT VIEW
LEFT VIEW
Note: This model has a damper located on the outdoor intake connection. This damper will close during a frost control cycle or when the unit is placed in the ‘Off‘ position with power maintained to the unit. This damper is not designed as a
backdraft damper and will remain open if power is disconnected from the unit for any reason.
Note: A minimum of 15.000” [381] clearance from any obstruction is required for
removal of heat recovery cores, fans, etc.
The access door can be removed from the cabinet with only 2.000” [51] of clearance.
Note: A minimum of 12.000” [305] clearance from any
obstruction is required for removal of the control box.
Access door
Control plate
Heat recovery core
Reversed
door option
15.000”
[381]
12.000”
[305]
RIGHT VIEW
FRONT VIEW

Note: Dimensions in [ ] are millimeters.
600i (with recirculation defrost)
Poly Core 197 LBS [90 kg]
Aluminum Core 204 LBS [93 kg]
HM Core 208 LBS [95 kg]
Connection Table
Connection Sizes
A Line voltage in 14 gauge wire nut
B Condensate drain fitting (2x) ¾” MPT
28.120”
[714]
49.550”
[1,259]
7.100”
[180]
14.000”
[356]
2.750”
[70]
Strap mounting
location
14.000”
[356]
4.000” [102]
1.750”
[44]
34.000”
[864]
Line voltage in
A
8.000”
[203]
Outdoor air
opening
Outdoor air
Exhaust air
8.000”
[203]
Exhaust air
opening
4.000”
[102]
Dry contacts
4.000”
24.500” [102]
[622]
8.000”
[203]
Return air
opening
Return air
Supply air
8.000”
[203]
Supply air
opening
3.530”
[90]
1.750”
[44]
For recirc defrost only
19.207”
[488]
Control box
14.100”
[358]
Access door
5.125”
[130]
Reversed door option
Condensate drain
B
Note:
For units with the reversed door option, interior components will appear
as a mirror image of the above diagram.
Figure B2: Unit dimensions – 600 cfm (with recirculation defrost)
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 13
RIGHT VIEW
FRONT VIEW
LEFT VIEW
Note: A minimum of 15.000” [381] clearance from any obstruction is required for removal
of heat recovery cores, fans, etc.
The access door can be removed from cabinet with only 2.000” [51] of clearance.
Note: A minimum of 12.000” [305] clearance from any obstruction
is required for removal of the control box.
Access
door
Control panel
Heat
recovery core
15.000”
[381]
12.000”
[305]
Reversed
door option
RIGHT VIEW
FRONT VIEW

Notes: Dimensions in [ ] are millimeters.
Center of gravity
Direction of airflow
B
A
HM Core
20.620”
[524]
Kg
27
20
27
20
94
LBS
59
43
59
43
204
PTS
A
B
C
D
Total
Aluminum Core
PTS LBS Kg
A 57 26
B 41 19
C 57 26
D 41 19
Total 196 90
Kg
25
18
25
18
86
HRV1200i
Poly Core
PTS LBS
A 54
B 39
C 54
D 39
Total 186
Connection Table
Connection Sizes
Line voltage in 14 gauge wire nut
Condensate drain fitting (2x) ¾” MPT
C D
14.250”
[362]
9.878”
[251]
20.000”
[508]
11.000”
[279]
41.206”
[1,047]
40.326”
[1,024]
Figure B3: Unit dimensions – 1,200 cfm (with exhaust only defrost)
A
B
TOP VIEW
5.715”
[145]
Strap mount
location
34.000”
[864]
20.000”
[508]
10.000”
[254]
Line voltage in
A
8.000”
[203]
Outdoor
air opening
2.750”
[70]
Exhaust air
8.000”
[203]
Outdoor air
4.028”
[102]
Exhaust air
opening
24.500”
[622]
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 14
4.000”
[102]
8.000”
[203]
Return
air opening
4.000”
[102]
Supply air
Low voltage
terminal strips
Return air
Supply air
opening
20.000”
[508]
Access door
B Condensate drain
19.207”
5.125”
[488]
[130]
Note: For units with the reversed door option, interior components
will appear as a mirror image of the above diagram.
Control box
access
11.325”
[288]
Reversed
door option
RIGHT VIEW
FRONT VIEW
LEFT VIEW
Note: This model has a damper located on the outdoor intake connection. This damper will close during a frost control cycle or when the unit is placed in the ‘Off’ position with power maintained to the unit. This damper is not designed as a backdraft damper and
will remain open if power is disconnected from the unit for any reason.
Note: A minimum of 15.000” [381] clearance from any obstruction
is required for removal of heat recovery cores, fans, etc.
The access door can be removed from the cabinet with only 2.000” [51] of clearance.
NOTE: A minimum of 12.000” [305] clearance from any obstruction
is required for removal of the control box.
Access
door
Control cover
Heat recovery
core
15.000”
[381]
12.000”
[305]
Reversed
door option
RIGHT VIEW
FRONT VIEW

Note: Dimensions in [ ] are millimeters
1200i (with recirculation defrost)
Poly Core 247 LBS [112 kg]
Aluminum Core 257 LBS [117 kg]
HM Core 264 LBS [120 kg]
Connection Table
Connection Sizes
A Line voltage in 14 gauge wire nut
B Condensate drain fitting (2x) ¾” MPT
41.240”
[1,047]
10.000”
[254]
20.000”
[508]
49.550”
[1,259]
20.000”
[508]
10.000”
[254]
Strap mounting
location
2.750”
[70]
A Line voltage in
1.750”
[44]
Dry contacts
8.000”
[203]
8.000”
[203]
Outdoor air
opening
Exhaust air
opening
4.000”
[102]
4.000”
[102]
24.500”
[622]
8.000”
[203]
8.000”
[203]
Return air
opening
Supply air
opening
3.530”
[90]
1.750”
[44]
For recirc defrost only
5.125”
[130]
19.207”
[488]
Control box
20.000”
[508]
Access door
B Condensate drain
Figure B4: Unit dimensions – 1,200 cfm (with recirculation defrost)
Reversed door
option
Note: For units with the reversed door option, interior components
will appear as a mirror image of the above diagram.
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 15
RIGHT VIEW
FRONT VIEW
LEFT VIEW
Note: A minimum of 15.000” [381] clearance from any obstruction is required for removal
of heat recovery cores, fans, etc.
The access door can be removed from cabinet with only 2.000” [51] of clearance.
Note: A minimum of 12.000” [305] clearance
from any obstruction is required for removal
of the control box.
Access
door
Control cover
Heat
recovery
core
15.000”
[381]
12.000”
[305]
Reversed door option
RIGHT VIEW
FRONT VIEW

Notes: Dimensions in [ ] are millimeters.
Center of gravity
Direction of airflow
A B
Kg
15
30
16
34
95
HRV700i
LBS
34
67
36
74
211
PTS
A
B
C
D
Total
10.000”
[254]
C D
22.500”
[572]
Connection Table
Connection Sizes
Line voltage in 14 gauge wire nut
Condensate drain fitting (2x) ¾” MPT
TOP VIEW
A
B
47.000”
[1,194]
Figure B5: Unit dimensions – 700 cfm
20.750”
[527]
8.000”
[203]
1.875”
[48]
2.000”
[51]
Defrost air
opening
3.625”
[92]
2.000”
[51]
14.000”
[356]
1.875”
[48]
3.750”
[95]
8.000”
[203]
Exhaust
air opening
Exhaust
air
Outdoor air
Outdoor
air opening
8.000”
[203]
10.750”
[273]
Line voltage in
A
37.000”
[940]
2.000”
[51]
12.250”
[311]
40.500”
[1,029]
2.157”
[55]
8.000”
[203]
Supply
air opening
Supply
air
12.104”
[307]
Return air
Return
air opening
8.000”
[203]
7.500” [191]
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 16
Condensate drain
B
10.605”
[269]
Low voltage
terminal strips
24.736”
[628]
31.080”
[789]
15.250”
[387]
Note: A minimum of 12.000” [305] clearance from any obstruction is
required for power hook-up, low voltage remote connection and control panel access.
51.000”
[1,295]
RIGHT VIEW
FRONT VIEW
LEFT VIEW
Note: A minimum of 21.000” [533] clearance from any obstruction
is required for removal of heat recovery cores, fans and control box access.
The access door can be removed from cabinet with only 2.000” [51] of clearance.
Note: Air is drawn in to the defrost air opening on top of the unit for recirculation defrost from the space or room in which the unit is mounted.
If this air is not suitable for supply air or if a negative pressure is created and is not acceptable, then the defrost air opening should be ducted
to a branch from the return air duct or from a suitable space.
21.000”
[533]
Heat recovery core
Access door
RIGHT VIEW

Min. 12”
[305 mm]
Appendix C: Flow Station Positions
Balancing damper
Min. 30”
[762 mm]
Flow measuring station (FMS)
Canvas vibration isolator
Figure C1: Flow station position – 600 cfm and 1,200 cfm
Min. 12”
[304 mm]
Flow measuring
station (FMS)
Canvas virbration isolator
Figure C2: Flow station position – 700 cfm
Dry contacts
Reverse door option
Min. 12”
[304 mm]
Min. 12”
[305 mm]
Min. 8” [203 mm]
Min. 12”
[304 mm]
Canvas vibration isolator (optional)
Fresh air
from outside
Exhaust air
from building
Balancing damper
(not supplied)
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 17

Appendix D: Drain Connections
Min. 3”
[76 mm]
Min. 1”
[25 mm]
To drain
Figure D1: Drain connections – 600 cfm and 1,200 cfm
Min..1”
[25.mm]
To.drain
Min..3”
[76.mm]
¾” NPT
coupler
Water trap
Plastic hose
Min. 3”
[76 mm]
Min. 1”
[25 mm]
Note: All hose, pipe and couplers to be supplied by others.
¾”.NPT
coupler
Water.trap
Plastic.hose
Min..3”
[76.mm]
Min..1”
[25.mm]
Plastic.drain.fitting
To.drain
Copper.or
plastic.pipe
note:.All.hose,.pipe.and.couplers.to.be.supplied.by.others.
Figure D2: Drain connections – 700 cfm
Plastic drain fitting
To drain
Copper or
plastic pipe
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 18

terminal Label
Appendix E: Terminal Control Diagrams
A low voltage remote control wiring interface is provided
on the unit. The connections for the low voltage remote
wiring are located on two terminals adjacent to the exhaust
fan outlet (or adjacent to the supply fan outlet on
the 700 cfm unit). All field installed wiring must be low
voltage Class II.
Remote.Wall.Control
Optional wall control requires a four-wire LVT 24 gauge
(or equivalent). This remote wall control runs on 12 VDC.
Low.Voltage.Controls
All other terminals are dry contacts.
Low voltage terminal control consists of the following:
Wall.Control
Four-wire LVT 24 gauge minimum.
Occupied.(Night.Setback).Timer/Sensor
24 VAC, needs dry contact.
Low-Com-High
Remote fan switching requires a single pole, double throw
switch (SPDT).
Fan.Interlock.switch.(FF)
Dry contact closes on ventilation or frost control. Used to
control external fan source (G).
1
2
3
4
5
6
7
8
9
10
BLACK
RED
WALL CONTROL
OCCUPIED
TIMER/
SENSOR
Figure E1: Terminal label
F
F
LOW
COMMON
HIGH
CLASS 2 VOLTAGE
GREEN
YELLOW
NOTE:
Connections are all dry
contacts except wall control
and 24 VAC power supply.
Use of 24 VAC circuit
requires isolating contacts
(ex. thermostat) to prevent
interconnection of Class 2
outputs.
1
2
3
4
5
6
7
8
9
10
Wall Control Connection
Three types of remote wall controls are available:
1. Standard wall control with fan switch and dehumidistat
control.
2. Xtra wall control with fan mode selection, dehumidistat
control and maintenance indicator.
3. Aqua Air wall control with fan mode selection, dehumidistat
control and high speed recirculation mode.
4. The remote wall controls work with the integrated
electronic controls within the unit to control ventilation
sequences. Each wall control has different features
and requires four-wire connection to the unit
as shown below. Without the wall control, fans can
be operated with a remote fan switch as shown in
Remote Fan Control.
IMpoRtant
An occupied timer or sensor device cannot be used with
the Xtra wall control.
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 19
JUMPER
1
2
3
4
5
6
7
8
9
10
BLACK
RED
WALL CONTROL
OCCUPIED
TIMER/
SENSOR
F
F
LOW
COMMON
HIGH
CLASS 2 VOLTAGE
GREEN
YELLOW
NOTE:
Connections are all dry
contacts except wall control
and 24 VAC power supply.
Use of 24 VAC circuit
requires isolating contacts
(ex. thermostat) to prevent
interconnection of Class 2
outputs.
Figure E2: Wall control connection
1
2
3
4
5
6
7
8
9
10
WALL
CONTROL

occupied timer/Sensor Connection
Occupancy control is achieved by connection to the terminal
interface shown below. These terminals require a dry
contact which could be provided by a number of types of
controls such as a timer, light sensor, occupancy sensor,
Building Management System or other. The unit will not
operate unless these contacts are closed!
The illustration below shows a factory installed jumper and
programmable timer option.
IMpoRtant
An occupied timer or sensor device cannot be used with
the Xtra wall control.
JUMPER
1
2
3
4
5
6
7
8
9
10
JUMPER
(factory installed)
BLACK
RED
OCCUPIED
TIMER/
SENSOR
F
F
WALL CONTROL
LOW
COMMON
HIGH
CLASS 2 VOLTAGE
GREEN
YELLOW
NOTE:
Connections are all dry
contacts except wall control
and 24 VAC power supply.
Use of 24 VAC circuit
requires isolating contacts
(ex. thermostat) to prevent
interconnection of Class 2
outputs.
1
2
3
4
5
6
7
8
9
10
NSB Timer
1 2 3 4 5
24 (+) VAC
24 (−) VAC
Figure E3: Occupied timer/sensor connection
M
1
2
3
4
5
6
7
8
9
10
WALL CONTROL
BLACK
GREEN
RED
OCCUPIED
TIMER/
SENSOR
F
F
OCC. CONTROL
(field installed)
LOW
COMMON
HIGH
YELLOW
CLASS 2 VOLTAGE
NOTE:
Connections are all dry
contacts except wall control
and 24 VAC power supply.
Use of 24 VAC circuit
requires isolating contacts
(ex. thermostat) to prevent
interconnection of Class 2
outputs.
1
2
3
4
5
6
7
8
9
10
Remote fan Control
Remote fan control can be achieved by connecting dry
contact controls to the terminal interface at terminals labeled:
Low-Com-High. These controls could be the following:
SPDT switch, dehumidistat, CO2 sensor, light sensor,
timer, Building Management System, etc. The illustration
below represents a switch connected to the unit.
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 20
JUMPER
1
2
3
4
5
6
7
8
9
10
BLACK
RED
WALL CONTROL
OCCUPIED
TIMER/
SENSOR
F
F
LOW
COMMON
HIGH
CLASS 2 VOLTAGE
GREEN
YELLOW
NOTE:
Connections are all dry
contacts except wall control
and 24 VAC power supply.
Use of 24 VAC circuit
requires isolating contacts
(ex. thermostat) to prevent
interconnection of Class 2
outputs.
Figure E4: Remote fan control
1
2
3
4
5
6
7
8
9
10
REMOTE FAN SWITCH
LOW HIGH

Appendix F: Electrical Connection Diagrams
Figure F1: Control box assembly – 600 cfm and 1,200 cfm
FU1015
5A-600i
8A-1200i
PJ2003
PJ2014
PJ1007
PJ1001A
XF1015
415VA
600i
1 2
3 4
5 6
CR1023
PJ2011
PJ1001
FILTRAN
CR1024 CR1026
A B
1
0
1
0
UCB1021
CR1029
NC NO
4
8
2
6
COM
XF1015
855VA
1200i
HRV cabinet
Control cover plate
Figure F2: Low speed setting wire connections – 600 cfm and 1,200 cfm
4
8
2
6
Remote control access plate
Remote wiring terminal block
Control box
Note: Low speed motor selection may be
replaced by medium speed. To make
this change, replace the low speed
wires (red) on relay CR1024 with the
medium speed wires (blue).
Note: Autotransformers (if equipped) are
mounted on the back of the control box.
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 21

Appendix G: Make-up Heat Requirements
Although the 600 cfm, 700 cfm and 1,200 cfm models
have good efficiencies, the supply air could be colder
than the ambient room air. It is possible to eliminate the
discomfort associated with this temperature difference by
installing an electric duct heater. This will temper the air
before it is distributed throughout the building. The table
below gives the heating requirements at different temperatures
and airflows.
IMpoRtant
The data does not reflect a reduction in effectiveness due
to frosting. Based on the standard air at: 1.2 Kg/m 3 and
Cp = 1.0 KJ/Kg°C 13.35 lb/ft 3 and Cp = 0.24 Btu/lbm°F.
Table G1: Make-up Heat Requirements – 600 and 700 cfm Unit
outdoor air outdoor air outdoor air outdoor air outdoor air
−40°f [−40°C] −22°f [−30°C] −4°f [−20°C] 14°f [−10°C] 32°f [0°C]
Desired air Desired air Desired air Desired air Desired air
Supply Supply
temperature temperature temperature temperature temperature
air air
55°f 68°f 73°f 55°f 68°f 73°f 55°f 68°f 73°f 55°f 68°f 73°f 55°f 68°f 73°f
(CfM) (L/s)
[13°C] [20°C] [23°C] [13°C] [20°C] [23°C] [13°C] [20°C] [23°C] [13°C] [20°C] [23°C] [13°C] [20°C] [23°C]
700 330 7.4 10.4 11.5 5.6 8.6 9.7 3.9 6.8 8.0 2.1 5.1 6.2 0.3 3.3 4.4
650 307 6.6 9.4 10.5 5.0 7.8 8.9 3.4 6.2 7.3 1.8 4.6 5.6 0.2 3.0 4.0
600 283 5.9 8.5 9.4 4.5 7.0 8.0 3.0 5.6 6.5 1.6 4.1 5.1 0.1 2.7 3.7
550 259 5.2 7.6 8.5 3.9 6.3 7.2 2.6 5.0 5.9 1.3 3.7 4.6 0.1 2.4 3.3
500 236 4.0 6.1 7.0 3.0 5.1 5.9 1.9 4.0 4.9 0.9 3.0 3.8 — 1.9 2.7
450 212 3.0 4.9 5.6 2.1 4.0 4.8 1.3 3.2 3.9 0.4 2.3 3.1 — 1.5 2.2
400 189 2.2 3.9 4.6 1.5 3.2 3.9 0.9 2.5 3.2 0.2 1.9 2.5 — 1.2 1.8
Table G2: Make-up Heat Requirements – 1,200 cfm Unit
outdoor air outdoor air outdoor air outdoor air outdoor air
−40°f [−40°C] −22°f [−30°C] −4°f [−20°C] 14°f [−10°C] 32°f [0°C]
Desired air Desired air Desired air Desired air Desired air
Supply Supply
temperature temperature temperature temperature temperature
air air
55°f 68°f 73°f 55°f 68°f 73°f 55°f 68°f 73°f 55°f 68°f 73°f 55°f 68°f 73°f
(CfM) (L/s)
[13°C] [20°C] [23°C] [13°C] [20°C] [23°C] [13°C] [20°C] [23°C] [13°C] [20°C] [23°C] [13°C] [20°C] [23°C]
1,250 590 14.6 19.9 21.9 11.2 16.5 18.5 7.8 13.1 15.2 4.4 9.7 11.8 1.0 6.3 8.4
1,200 566 13.5 18.6 20.6 10.4 15.5 17.4 7.2 12.3 14.3 4.0 9.1 11.1 0.8 5.9 7.9
1,150 542 12.6 17.4 19.3 9.6 14.5 16.4 6.6 11.5 13.4 3.6 8.5 10.4 0.7 5.5 7.4
1,100 675 11.2 15.9 17.7 8.5 13.2 15.0 5.8 10.5 12.3 3.1 7.7 9.6 0.4 5.0 6.8
1,050 495 10.7 15.2 16.9 8.1 12.6 14.3 5.5 10.0 11.7 2.9 7.4 9.1 0.4 4.8 6.5
1,000 472 9.9 14.1 15.7 7.4 11.7 13.3 5.0 9.3 10.9 2.6 6.9 8.5 0.2 4.4 6.1
900 425 8.5 12.4 13.8 6.4 10.2 11.7 4.3 8.1 9.6 2.2 6.0 7.5 0.1 3.9 5.4
800 377 7.0 10.4 11.7 5.2 8.6 9.9 3.4 6.8 8.2 1.7 5.0 6.4 — 3.3 4.6
700 330 5.0 8.1 9.3 3.7 6.7 7.9 2.3 5.3 6.5 0.9 3.9 5.1 — 2.5 3.7
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 22

Appendix H: Troubleshooting
Table H1: HRV600i, 700i and 1200i Troubleshooting
Symptoms possible Causes Solutions
Over ventilation – speed setting too high. Adjust speed setting.
Inside air is too dry.
Dehumidistat setting too low.
Set dehumidistat control in a higher position
(if applicable).
Adjust dehumidistat control knob to a lower
Improper adjustment of dehumidistat control.
Persistent condensation on windows,
setting.
walls, ceilings, etc.
Improper ventilation rate. Install a dehumisistat (option).
Window frame is too cold or leaky. Repair window frame.
Unit stops functioning. Electrical supply interrupted. Check the unit circuit breaker.
Air from supply diffusers too cold.
Imbalance of supply and exhaust air.
Check filters and heat exchangers for blockage.
Check balance of airflows.
Outdoor temperature very cold. Install electric duct heater if necessary.
Unit makes annoying noise. Blower wheel out of alignment.
Remove the motor/blower assembly and
adjust blower wheel.
Heat exchanger freezing up.
Imbalance of supply and exhaust air.
Frost control damper not functioning.
Check filters and heat exchangers for blockage.
Check balance of airflows.
Check for operation of both frost control
damper actuators.
Heat exchanger flutes are positioned in the
Low exhaust airflow in winter season.
exhaust airstream.
Remove flat plate heat exchanger sections
and re-position the flute side of the heat
exchanger into the supply airstream.
vces-HRv-iom-1 – HRv600i, HRv700i, HRv1200i 23

info@venmarces.com
www.venmarces.com
Venmar CES Inc. has a policy of continuous improvement and reserves
the right to change design and specifications without notice.
©2012 Venmar CES Inc.
VCES-HRV-IOM-1 (PN 206815)
August 2012