Venmar 600 cfm, 1200 cfm, 700 cfm User Manual

Light Commercial

Heat Recovery Ventilators

Installation, Operation and Service Instructions

VB0002

VB0003

600 cfm 700 cfm

VB0001

1200 cfm

06/00 04597

Contents

1 Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Installation

2.1 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Mounting Location Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.3 Mounting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.4 Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.5 Internal Grilles and Diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.6 Exterior Hoods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.7 Drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.8 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.2 Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.3 Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.4 Remote Wall Control (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4 Airflow Measurement and Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4.1 Flow Station Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4.2 Balancing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5 Maintenance and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5.1 Bi-Monthly Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5.2 Annual Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Appendix A - Mounting Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Appendix B - Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Appendix C - Flow Station Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Appendix D - Drain Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Appendix E - Terminal Control Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Appendix F - Electrical Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Appendix G - Make-up Heat Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Appendix H - Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Appendix I - Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Page 2

1 Safety Considerations

2.3 Mounting Options

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 literature and on
labels attached to unit. Follow all safety codes.

WARNING

Disconnect main power switches to unit before
performing service or maintenance. Electric shock
can cause personal injury or death.

2 Installation

2.1 Inspection

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
exchange cores, insulation, dampers, actuators and
drain pans are all intact.

If transportation damage is found, file a claim
immediately with the transportation agency. Remove
all packaging, tape, etc. from the cabinet.

2.2 Mounting Location Requirements

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.

There are several options for hanging or floor

mounting the unit.

NOTE:

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" (10mm)
threaded rod and U channels or angles (not supplied)
as shown in Appendix A.

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 51mm) 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 1/4"/foot) (6mm/305mm). 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.

2.4 Ductwork

NOTE:

These Heat Recovery Ventilators have minimum
clearance requirements when mounting. See Appendix B
for specific clearance requirements. Mounting options
must allow 6" (152mm) clearance in front of control
cover for access.

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.

The supply and exhaust duct connections on the

unit are as follows:

UNIT DUCT SIZE

600 cfm/700 cfm 14" x 8" (356 x 203mm)

1200 cfm 20" x 8" (508 x 203mm)

NOTE:

Duct sizes are for connection purposes only.
Ducts should be sized to keep noise and pressure drop
to a minimum.

Page 3

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 cfm and 1200 cfm units have
1" (25mm) flanges to facilitate the installation of the
ductwork. Please note that the "Fresh Air from
Outside" port has a defrost 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" (51mm)
flanges to facilitate the installation of the ductwork.
Please note the "Fresh Air From Outside" connection
is factory set to be the left side upper port. It is
possible to reverse the operation of the defrost
damper in order to use the port on top of the
cabinet for "Fresh Air From Outside" connection.

To change the "Fresh Air From Outside" from the
side to the top use the following directions. For port
locations see Appendix B.

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 1100 ft/min (5.6 m/sec) 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.

2.6 Exterior Hoods

It is important that the fresh air intake hood be
positioned well away from any source of contamination.
The exterior supply and exhaust hoods must be
separated enough to prevent cross-contamination
and at an elevation that will prevent blockage by
snow, dirt and leaves.

NOTE:

Consult local building code for restrictions in
your area.

A rodent screen with 1/4" (6mm) mesh must be
installed to prevent the intake of large debris and
animals. A backdraft damper may need to be
installed in the exhaust duct to prevent cold air entering
the building if the unit is to be shut off for a long
period of time.

To maintain optimum airflow performance,
exterior hood selection must be such that the
minimum free area of opening is as follows:
140 inches

2

(0.09m2).

Remove the cover of the damper motor with a flat
screwdriver. 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 "Fresh Air From
Outside" connection to the top port will be:
#1 - White, #2 - Red, #3 - Orange.

2.5 Internal Grilles and Diffusers

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 ft/min
(2 m/sec) for normal applications.

Page 4

2.7 Drains

The drain fittings provided with the unit will
accept a 3/4" (19mm) 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.

NOTE:

Consult local building code for plumbing requirements
in your area. If copper pipe is to be used, ensure not
to solder to the 3/4" (19mm) coupler while it is
attached to the plastic drain fitting as deformation may
occur. Ensure adequate slope is present to allow good
drainage (minimum 1/4" per foot or 6mm per 305mm).

2.8 Electrical Connections

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:

600 cfm 700 cfm 1200 cfm

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, defrost damper (if equipped) closes off
fresh air from outside.

VOLTAGE 115V 115V 115V
MCA 8.65 6.63 13.4
MOP 12.5 9.13 20

Control Box Access For Low Speed Setting
(600 cfm/1200 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.

3 Controls

3.1 General Information

Fan Interlock Relay Output (FF)

External fan control can be achieved by connecting an
external 24 volts fan control through dry contacts (FF).
These contacts are closed on a call for ventilation or
defrost. See wiring diagram shown in Appendix E-5.

___ Power connected, low speed call - Both fans on

low speed internal defrost damper (if equipped)
opens fresh air from outside. If equipped with
recirculation module, the internal defrost
damper closes recirculation opening.

___ Power connected, high speed call - Both fans on

high speed, defrost damper opens fresh air from
outside. If equipped with recirculation module,
the internal defrost damper closes recirculation
opening.

___ Power connected, occupied timer/sensor connection

open (unoccupied mode) - Both fans are off, defrost
damper closes fresh air from outside. If equipped
with recirculation module, the internal defrost
damper opens recirculation opening.

___ Power connected, FF control contacts close

during unit ventilation or defrost cycle.

3.3 Defrost

Speed Selection (600 cfm/1200 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 on the blower motors. If necessary, the
medium speed tap can be used instead of the low
speed tap. See Appendix E-2 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-2.

3.2 Sequence of Operation

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-2.

The unit functions are controlled by integrated
controls in the unit which may include Exhaust Only
Defrost or Recirculation Defrost (via the recirculation
module - 600 cfm and 1200 cfm units only). In cold
temperatures, defrost cycles will remove frost from
the heat exchanger to maintain good operation.

Exhaust Only Defrost (Optional)

Frost removal occurs when the supply blower
de-energizes, the supply air damper and the core
damper close and the exhaust fan continues to circulate
only warm inside air through the heat recovery core
to maintain ventilation. This process prevents the build
up of ice in the core. Defrost is temperature initiated
at 23°F to -22°F (-5°C to -30°C) and time based.

WARNING

A negative building pressure may develop during
the defrost cycle with possible backdrafting fumes
from combustion equipment.

Page 5

Recirculation Defrost Module
(Optional - Factory Installed)

The Recirculation Defrost Module is only available
with the 600 cfm and 1200 cfm units. The defrost
cycle is electronically controlled in response to the
outside temperature 23°F to -22°F (-5°C to -30°C).
On a call for defrost, the supply air damper in the
recirculation module closes, exhaust fan is de-energized
and the supply fan continues to recirculate warm air
through the heat recovery core. It is possible to extend
the defrost times during very cold weather by removing
the jumper JU1-F on the circuit board as shown in
Appendix F. For dimension and weight changes to
the 600 cfm and 1200 cfm models with recirculation
defrost, see Appendix B-2 and B-4.

3.4 Remote Wall Control (Optional)

Remote mounted wall control options can be used
to control the ventilators from a location remote to
the installed unit location. The connection from the
ventilator to the control is low voltage and requires a
4 conductor (24 ga. minimum) LVT cable. Models
are available with either a dehumidistat control or
gas sensor. The following four options are available.

Slide Switch Type

Dehumidistat to engage high speed exchange.
Slide switch operation supporting continuous low
exchange and continuous high exchange.

Push Button Electronic Type

Dehumidistat to engage high speed exchange.
Push-button operation supporting: intermittent
(stand-by) ventilation, continuous low exchange,
continuous high exchange, maintenance indicator
light and exchange indicator light.

Pool Electronic Type

Ideal for pool dehumidification. Dehumidistat to
engage high speed exchange. Push-button operation
supporting: intermittent (stand-by) ventilation, continuous
low exchange, continuous high exchange, maintenance
indicator light and exchange indicator light.

Pollutant Detector Type

Pollutant monitor to engage low/high exchange.
Push-button operation supporting: intermittent
(stand-by) ventilation, continuous low exchange,
continuous high exchange, maintenance indicator
light and exchange indicator light.

4 Airflow Measurement

and Balancing

Once installation is complete, the supply and
exhaust airflows should be balanced. This will
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
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 203mm) or
20" x 8" (508 x 203mm) rectangular duct and a range
of round duct sizes. Please ask your supplier for
more information.

4.1 Flow Station Positions

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" (305mm)
from any damper. In straight sections of pipe,
the FMS should be installed at least 30" (762mm)
from any fan outlet. This applies to the "Supply Air
Opening" connection on the heat recovery ventilator
and the "Exhaust Air Opening" connection.

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.

Page 6

4.2 Balancing Procedure

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
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.

5 Maintenance and Service

5.1 Bi-Monthly Maintenance

WARNING

Disconnect power before maintaining unit.

1

1

2

VL0001

600 cfm and 1200 cfm

1. Washable foam filter

2. MEF filter - optional

1 or 2

1

VL0002A

700 cfm

Drain Pans and Interior of Unit

With the filters removed from the unit, the foil
faced insulation surfaces and the drain pans should
be wiped clean with a soft cloth and mild cleaning
solution. Also ensure that the drain fittings are free
from dirt and are draining freely.

5.2 Annual Maintenance

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 air
stream is available from your supplier. This filter
is disposable and should be replaced when it
becomes dirty.

WARNING

Disconnect power before maintaining unit.

Annual service 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.

Heat Recovery Core

The heat recovery core must be handled with care.
It is recommended that it be washed once a year
following the season of most intense use, in order to
ensure maximum efficiency of the partitions.

Page 7

Allow the heat recovery core to soak for three
hours in warm water and mild soap. Rinse under a
heavy stream of water.

WARNING

Hot water and a strong cleaning agent could
damage the polypropylene core. Ensure the core is
returned to the unit in the correct orientation. Use
the sticker as a guide.

Fans

Blower wheels and fan housing should be checked
for dirt build-up. If they appear dirty, it may be
necessary to remove the blower assembly and then
vacuum the dust out through the fan mouth. See the
following page for instructions on removing the
blower assembly.

System Operation Check

Verification of all control modes should be
checked to ensure proper operation. Refer to the
Controls Section, 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.

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 115 volt power
source with an electrical cable, as follows:

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 heat recovery core
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
2 SCREWS

LOCKING PLATE

CAPACITOR

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
defrost relay or the main circuit board.

600/1200 cfm ONLY: (CAUTION: 120VAC) 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 pins J1-9 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 defrost all of 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.

VD0004A

600 cfm and 1200 cfm

THUMBSCREW

SERVICE CONNECTOR

VD0001A

700 cfm

Page 8

Space must be left to allow connection
of drain lines with adequate slope for drainage

Wooden Curb (Supplied by others)

Bolt to Floor

Rubber Vibration Isolator

(Supplied by others)

U Channel

(Supplied by others)

3/8" (10mm)
Threaded Rod
(Supplied by others)

NOTE:

Diagrams show standard unit configuration.
For units with the reversed door option, the
door will be located here.

Reinforced
Rubber Strap

VD0002A

Mounting Diagrams

600 cfm and 1200 cfm

Recirculation Module

(Factory Installed)

Recirculation Module

(Factory Installed)

Appendix A

Recirculation Module

(Factory Installed)

Dry Contacts

VD0003A

3/8" (10mm)
Threaded Rod
(Supplied by others)

Cabinet Mounted
U Channel

Rubber Vibration
Isolater

700 cfm

Dry Contacts

Page 9

Bolt to Floor

Wooden Curb
(Supplied by others)

Space must be left to allow
connection of drain lines with
adequate slope for drainage

Appendix B

Unit Dimensions

B-1: 600 cfm (without recirculation module)

Kg

20.00

13.00

26.72

17.30

LBS

44.21

28.67

58.92

38.21

A

B

C

D

PTS

HRV600i ALUMINUM CORE

Kg

11.32

17.45

23.26

15.08

LBS

38.49

24.96

51.29

33.26

Direction of airflow

Center of gravity

Dimensions in [ ] are in millimeters

NOTES:

HRV600i POLY CORE

PTS

A

B

C

D

B

77.11

170.00

TOTAL

67.13

148.00

TOTAL

3/4" NPT

CONNECTION SIZES

CONNECTION TABLE

14 Gauge wire nut

Condensate drain fitting (2x)

A

B

D

6.500"

[597]

14.000"

23.500"

LOCATION

STRAP MOUNTING

[165]

[356]

[70]

2.750"

[203]

8.000"

OPENING

OUTDOOR AIR

[622]

24.500"

OUTDOOR AIR

[203]

8.000"

OPENING

RETURN AIR

[102]

4.000"

RETURN AIR

[358]

14.103"

[196]

7.705"

[130]

5.125"

RIGHT SIDE

DRAIN LINE FITTING

A

[305]

12.005"

[864]

TOP

[340]

13.375"

C

34.000"

A

[149]

5.859"

[711]

28.005"

4.000"

LINE POWER

[102]

4.028"

[356]

14.000"

[102]

EXHAUST AIR

EXHAUST AIR

[203]

8.000"

OPENING

[102]

4.000"

SUPPLY AIR

LOW VOLTAGE

TERMINAL STRIPS

SUPPLY AIR

[203]

8.000"

OPENING

[488]

19.207"

NOTE: FOR UNITS WITH THE REVERSED DOOR OPTION,

INTERIOR COMPONENTS WILL APPEAR AS A MIRROR

IMAGE OF THE ABOVE DIAGRAM.

CONTROL BOX

ACCESS

[254]

10.005"

B

[90]

3.535"

OPTION

REVERSE DOOR

FRONT

LEFT SIDE

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.

ACCESS DOOR

A MINIMUM OF 12.000" [305] CLEARANCE FROM ANY OBSTRUCTION

IS REQUIRED FOR REMOVAL OF CONTROL BOX.

NOTE: THIS MODEL HAS A DAMPER LOCATED ON THE OUTDOOR INTAKE CONNECTION. THIS DAMPER WILL CLOSE DURING A DEFROST 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.

HEAT RECOVERY CORE

CONTROL PLATE

REVERSED DOOR OPTION

[381]

15.000"

[305]

12.000"

VK0001A

Page 10

Appendix B Continued

Unit Dimensions

B-2: 600 cfm with recirculation module (factory installed)

Kg

231 105

LBS

[180]

7.10"

with recirculation module

PTS

HRV 600i ALUMINUM CORE

TOTAL

Kg

90

[356]

14.00"

197

LBS

HRV 600i POLY CORE

PTS

with recirculation module

NOTE: Dimensions in [ ] are millimetres.

TOTAL

Location

Strap Mounting

[203]

8.00"

Fresh Air

From Outside

4.00"

[102]

8.00"

Exhaust Air

[203]

From Building

[44]

1.75"

[358]

14.10"

Access Door

Drain Fitting

Reversed Door Option

[381]

15.00"

49.550" [1259]

2.75" [70]

28.12" [714]

14.00" [356]

Line Power

Dry Contacts

To Outside

Exhaust Air

Fresh Air

To Building

A minimum of 15.00" [381] clearance from any obstruction is required for removal

of heat recovery cores, fans, etc.

5.125" [130]

19.207" [488]

NOTE:

For units with the reversed door option, interior components will appear

as a mirror image of the above diagram.

Control Box

Reverse Door Option

The access door can be removed from cabinet with only 2.00" [51] of clearance.

A minimum of 6.00" [152] clearance from any obstruction

is required for removal of control box.

Access Door

Heat Recovery Core

[305]

12.00"

1.75" [44]

4.00" [102]

8.00"

[203]

4.00"

[102]

[622]

24.50"

8.00"

[203]

3.53"

[90]

Page 11

Control Plate

VK0004A

Kg

27.40

19.77

27.40

LBS

60.41

43.59

60.41

A

B

C

PTS

HRV1200i ALUMINUM CORE

Kg

24.50

17.68

24.50

LBS

54.02

38.98

54.02

Direction of airflow

Center of gravity

NOTES:

Dimensions in [ ] are in millimeters

HRV1200i POLY CORE

PTS

A

B

C

19.77

43.59

D

17.68

38.98

D

94.34

208.00

TOTAL

84.36

186.00

TOTAL

Appendix B Continued

Unit Dimensions

B-3: 1200 cfm (without recirculation module)

[622]

24.500"

[203]

8.000"

EXHAUST AIR

FROM BUILDING

[102]

4.000"

[508]

20.000"

DRAIN FITTING

ACCESS DOOR

RIGHT SIDE

3/4" mpt

CONNECTION SIZES

CONNECTION TABLE

14 GAUGE WIRE NUT

CONDENSATE DRAIN FITTING (2X)

A

B

[251]

9.878"

[508]

20.000"

[279]

11.000"

STRAP MOUNT

LOCATION

[203]

8.000"

FRESH AIR

FROM OUTSIDE

[70]

2.750"
REVERSED DOOR OPTION

[381]

15.000"

[102]

RETURN AIR

SUPPLY AIR

LOW VOLTAGE

TERMINAL STRIPS

[130]

5.125"

[488]

19.207"

NOTE: FOR UNITS WITH THE REVERSED DOOR OPTION,

INTERIOR COMPONENTS WILL APPEAR AS A MIRROR

IMAGE OF THE ABOVE DIAGRAM.

CONTROL BOX

ACCESS

[288]

11.325"

FRONT VIEW

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.

ACCESS DOOR

A MINIMUM OF 12.000" [305] CLEARANCE FROM ANY OBSTRUCTION

IS REQUIRED FOR REMOVAL OF CONTROL BOX.

HEAT RECOVERY CORE

[305]

12.000"

OUTDOOR AIR

B

A

[524]

20.620"

D

[864]

34.000"

TOP

[362]

14.250"

C

EXHAUST AIR

LINE POWER

A

[145]

5.715"

4.028"

[1047]

41.206"

[1024]

40.326"

[508]

20.000"

[254]

10.000"

TO OUTSIDE

EXHAUST AIR

[203]

8.000"

Page 12

FRESH AIR

[102]

4.000"

TO BUILDING

B

LEFT SIDE

OPTION

REVERSE DOOR

NOTE: THIS MODEL HAS A DAMPER LOCATED ON THE OUTDOOR INTAKE CONNECTION. THIS DAMPER WILL CLOSE DURING A DEFROST 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.

CONTROL COVER

VK0034A

Appendix B Continued

Unit Dimensions

B-4: 1200 cfm with recirculation module (factory installed)

Kg

10.000"

269 122

LBS

avec module recirc.

VRC 1200i NOYAU ALU

PTS

TOTAL

20.000"

Kg

112

247

LBS

avec module recirc.

PTS

VRC 1200i NOYAU POLY

TOTAL

[254]

[508]

[203]

8.00"

d’air frais

Aspiration

4.00"

[102]

[203]

8.00"

d’air vicié

Évacuation

NOTE: Les dimensions entre [ ] sont en millimètres.

Localisation de la

courroie de fixation

[44]

1.75"

[508]

20.000"

Porte d’accès

5.125" [130]

Raccord de drain

Option de porte inversée

[381]

15.00"

Un dégagement minimum de 15.00" [381] est requis pour retirer les noyaux de

récupération, les ventilateurs, etc.

La porte d’accès peut être retirée du cabinet avec seulement 2.00" [51 ]de dégagement.

Noyau de

de chaleur

récupération

49.550" [1259]

2.75" [70]

[508]

20.00"

41.24" [1047]

[254]

10.00"

Borniers

Alimentation

électrique

vicié

Sortie d’air

Entrée

d’air frais

[488]

19.207"

NOTE:

Pour les appareils munis de l’option de porte inversée, les pièces

intérieures apparaîtront à l’inverse du dessin ci-dessus (image miroir).

Boîtier

électronique

Option de porte inversée

Porte d’accès

[305]

12.00"

Un dégagement minimum de 12.00" [305] est requis pour

retirer le boîtier électronique.

boîtier

Couvercle du

VK0003F

1.75"

[44]

8.00"

[203]

[102]

4.00"

24.50"

[622]

8.00"

[203]

3.53"

[90]

Page 13

3/4" mpt

CONNECTION SIZES

Appendix B Continued

Unit Dimensions

B-5: 700 cfm

[48]

[203]

1.875"

8.000"

[273]

10.750"

7.500"

8.000" [203]

[191]

[527]

CONNECTION TABLE

LBS Kg

32.74 14.85

68.46 31.05

35.20 15.97

A

PTS

10.000"

B

[254]

C

73.60 33.38

210.00

D

TOTAL 95.25

22.500"

14 gauge wire nut

A

[572]

HRV700i

Center of gravity

Direction of airflow

Dimensions in [ ] are in millimeters

NOTES:

TOP

AB

CD

20.750"

Condensate drain fitting (2x)

B

2.000"

[1194]

47.000"

DEFROST AIR

OPENING

[203]

8.000"

[51]

A

OPENING

EXHAUST AIR

EXHAUST

AIR

2.157"

Line Voltage In

[940]

37.000"

[55]

SUPPLY AIR

SUPPLY

OPENING

12.104"

AIR

[307]

[269]

10.605"

Low Voltage

Terminal Strips

[628]

24.736"

RIGHT SIDEFRONT

A minimum of 12.00" [305] clearance from any

obstruction is required for power hook-up, low

voltage remote connection, and control panel access.

[533]

21.000"

A minimum of 21.00" [533] clearance from any obstruction

is required for removal of heat recovery cores, fans, etc.

The access door can be removed from cabinet with only 2.00" [51] of clearance.

[789]

31.080"

[1295]

51.000"

HEAT RECOVERY CORE

ACCESS DOOR

[356]

14.000"

[92]

3.625"

[51]

2.000"

[48]

1.875"

[95]

3.750"

2.000"

OUTDOOR AIR

OPENING

OUTDOOR AIR

[203]

8.000"

12.250"

Page 14

[51]

[311]

40.500"

RETURN AIR

8.000"

[1029]

RETURN AIR

OPENING

[203]

B

15.250"

CONDENSATE DRAIN

[387]

LEFT SIDE

VK0002A

Appendix C

Flow Station Positions

600 cfm and 1200 cfm

VP0001A

Min. 12"

(305mm)

Balancing Damper

Flow Measuring Station (FMS)

Min. 30"

(762mm)

Canvas Vibration Isolator

Reverse Door Option

Min. 8" (203mm)

(Optional) Canvas Vibration Isolator

Fresh Air
From Outside

Exhaust Air
From Building

Min. 12"

(305mm)

VP0002A

Min.12"

(304mm)

Flow Measuring
Station (FMS)

Canvas Vibration Isolator

700 cfm

Dry Contacts

Min. 30"

(762mm)

Balancing Damper
(not supplied)

Min. 12"

(304mm)

Page 15

Appendix D

Drain Connections

600 cfm and 1200 cfm

Note:

All hose, pipe &
couplers to be
supplied by others

3/4"NPT

Coupler

Plastic Hose

Water Trap

700 cfm

Plastic Drain Fittings

To Drain

Copper or
Plastic Pipe

To Drain

3/4" NPT

Coupler

Plastic Hose

Water Trap

Plastic Drain Fitting

Note:

All hose, pipe,
and couplers to be
supplied by others.

To Drain

Copper or
Plastic Pipe

Page 16

Appendix E

Terminal Control Diagrams

E-1: Terminal Label

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 4 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

4 wire LVT 24 gauge minimum

Occupied (Night set back) Timer/Sensor

24 VAC, needs dry contact

E-2: Wall Control Connection

Four types of remote wall controls are available:

1. Slide Switch Wall Control with fan switch and
dehumidistat control

2. Push Button Electronic Wall Control with fan
mode selection, dehumidistat control and
maintenance indicator

3. Pollutant Wall Control with fan mode selection
and air pollutant sensor/control

4. Pool Wall Control with fan mode selection,
dehumidistat control and high speed
recirculation mode.

The remote wall controls work with the micro­processor electronic control within the unit to
control ventilation sequences. Each wall control has
different features and require 4-wire connection to
the unit as shown below. Without the wall control,
fans can be operated with a remote fan switch as
shown in Appendix E-4.

LOW - COM - HIGH

Remote fan switching requires a single pole, double

throw switch (SPDT)

Fan Interlock Relay Output (FF)

Dry contact closes on ventilation or defrost. Used

to control external fan.

VE0002A

WALL CONTROL

Black

Red

OCCUPIED
TIMER/
SENSOR

F

F

CLASS 2 VOLTAGE

NOTE:

Connections are all dry
contacts except wall control
and 24VAC power supply.

Use of 24VAC circuit
requires isolating contacts
(ex. thermostat) to prevent
interconnection of Class 2
outputs.

Green

Yellow

LOW

COMMON

HIGH

NOTE:

An occupied timer or sensor device cannot be used
with the push button pool or pollutant wall controls.

JUMPER

VE0006A

WALL CONTROL

Black

Red

OCCUPIED
TIMER/
SENSOR

F

F

CLASS 2 VOLTAGE

NOTE:

Connections are all dry
contacts except wall control
and 24VAC power supply.

Use of 24VAC circuit
requires isolating contacts
(ex. thermostat) to prevent
interconnection of Class 2
outputs.

Green

Yellow

LOW

COMMON

HIGH

Wall

Control

Page 17

Appendix E Continued

Terminal Control Diagrams

E-3: 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.

NOTE:

An occupied timer or sensor device cannot be used
with the push button or pollutant wall controls.

OCC. CONTROL

(field installed)

WALL CONTROL

Black

Red

OCCUPIED
TIMER/
SENSOR

F

F

CLASS 2 VOLTAGE

NOTE:

Connections are all dry
contacts except wall control
and 24VAC power supply.

Use of 24VAC circuit
requires isolating contacts
(ex. thermostat) to prevent
interconnection of Class 2
outputs.

Green

Yellow

LOW

COMMON

HIGH

(factory installed)

Black

Red

JUMPER

NOTE:

Connections are all dry
contacts except wall control
and 24VAC power supply.

Use of 24VAC circuit
requires isolating contacts
(ex. thermostat) to prevent
interconnection of Class 2
outputs.

VE0003A

JUMPER

WALL CONTROL

OCCUPIED
TIMER/
SENSOR

F

F

CLASS 2 VOLTAGE

LOW

COMMON

HIGH

Green

Yellow

NSB Timer

Venmar PN 1604128

1M2345

24 (-) VAC

24 (+) VAC

E-4: 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, CO

sensor, light sensor, timer,

2

building management system, etc. The illustration
below represents a switch connected to the unit.

JUMPER

VE0005A

WALL CONTROL

Black

Red

OCCUPIED
TIMER/
SENSOR

F

F

CLASS 2 VOLTAGE

NOTE:

Connections are all dry
contacts except wall control
and 24VAC power supply.

Use of 24VAC circuit
requires isolating contacts
(ex. thermostat) to prevent
interconnection of Class 2
outputs.

LOW

COMMON

HIGH

Green

Yellow

FAN

REMOTE

SWITCH

LOW HIGH

FOUR
WIRES

TWO WIRES

heating only

FURNACE

24-VOLT

TERMINAL BLOCK

VE0010A

W

R

G

C

Y

W R G

Y

THERMOSTAT

TERMINALS

TWO WIRES

E-5: Fan Interlock Wiring Diagrams

W

W

R

R

G

C

Y

Y

*FURNACE INTERLOCK RELAY, PART # 12658

HR V CONTROL CONNECTOR

J3

I OC OL Y R G BF F

COOLING SYSTEM

987654321

Page 18

4 WIRES

2 WIRES

heating only

FURNACE

24-VOLT

TERMINAL BLOCK

VE0009A

Unit Control Module

THERMOSTAT

G

R

Y

TERMINAL

wiring
nuts

RED

GREEN

BLUE

*FURNACE INTERLOCK

2 WIRES

J1

GRAY BROWN

NC NO

COM

RELAY

COOLING SYSTEM

9-PIN AMP PLUG

7

124

7

568

93

VE0001A

Appendix F

Electrical Connection Diagrams

Control Box Assembly 600 cfm and 1200 cfm

Remote control access plate

Remote wiring terminal block
Control box

HRV Cabinet

Control cover plate

Low Speed Setting Wire Connections 600 cfm and 1200 cfm

12 pin

2 pin

LOW SPEED SETTING
To change the minimum speed setting from
Low To Medium, move the fork connector:

from here

OL
OC

FF1 YRGB

to here

J3

7

9

Low Speed (Red)

Med Speed (Blue)

Remove power

before installing

or removing

JU1-F Extended

Defrost Jumper

VE0004A

ed

R

ABCDEFG

JU1

1J2J4

4

321

6

Page 19

Appendix G

Make-up Heat Requirements

600 cfm and 700 cfm

1200 cfm

and Cp = .24 Btu/lbm°F

and Cp = 1.0 KJ/Kg°C

3

3

Desired Air Temperature Desired Air Temperature Desired Air Temperature Desired Air Temperature Desired Air Temperature

13.35 lb/ft

standard air at: 1.2 Kg/m

The data does not reflect a reduction in effectiveness due to frosting. Based on the

Although the 600 cfm, 700 cfm and 1200 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.

NOTE:

The table below gives the heating requirements at different temperatures and airflows.

OUTDOOR AIR -40°F (- 40°C) OUTDOOR AIR -22°F (-30°C) OUTDOOR AIR -4°F (-20°C) OUTDOOR AIR +14°F (-10°C) OUTDOOR AIR +32°F (0°C)

CFM UNIT

600 and 700

) 55°F(13°C) 68°F(20°C) 73°F(23°C) 55°F(13°C) 68°F(20°C) 73°F(23°C) 55°F(13°C) 68°F(20°C) 73°F(23°C)

23°C

°F(

kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW

55°F(13°C) 68°F(20°C) 73°F(23°C) 55°F(13°C) 68°F(20°C) 73

(cfm) (L/s)

Supply Air Supply Air

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

) 55°F(13°C) 68°F(20°C) 73°F(23°C) 55°F(13°C) 68°F(20°C) 73°F(23°C) 55°F(13°C) 68°F(20°C) 73°F(23°C)

23°C

°F(

kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW

Desired Air Temperature Desired Air Temperature Desired Air Temperature Desired Air Temperature Desired Air Temperature

55°F(13°C) 68°F(20°C) 73°F(23°C) 55°F(13°C) 68°F(20°C) 73

OUTDOOR AIR -40°F (- 40°C) OUTDOOR AIR -22°F (-30°C) OUTDOOR AIR -4°F (-20°C) OUTDOOR AIR +14°F (-10°C) OUTDOOR AIR +32°F (0°C)

1200

(cfm) (L/s)

CFM UNIT

Supply Air Supply Air

1250 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

1200 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

1150 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

1100 519 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

1050 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

1000 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 5.1 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

Page 20

Appendix H

Wiring Diagram

Wiring Diagram for 600 cfm unit

ORANGE

RED

WHITE

WHITE/BLUE

115 VOLTS

LOW

VOLTAGE

ORW

W/BL

COLOR CODE

BLUE

BLACK

BLACK/RED

BLBKBK/R

W

CC

BLACK/YELLOW

BK/Y

NOTES

1- REMOVE THIS CONNECTION IF AUTOTRANSFORMER IS USED.

2- THE MEDIUM SPEED WIRES MAY OPTIONALLY REPLACE

THE LOW SPEED (RED) WIRES RUNNING FROM RELAY R4-1.

3- IF ANY OF THE ORIGINAL WIRE, AS SUPPLIED, MUST BE

REPLACED, USE THE SAME OR EQUIVALENT WIRE.

4- THE FIELD WIRING MUST COMPLY WITH APPLICABLE

CODES, ORDONNANCES AND REGULATIONS.

6

4

21

CONTROL BOX

BK

WALL CONTROL GREEN

WALL CONTROL YELLOW

LOW SPEED (3.9 K)

COM

9

1011121314

OCC./

UNOCC.

HIGH SPEED

BK
Y

R

G
BL

BL

REMOTE FAN

INTERLOCK (FF)

J3 9

J3 6

J3 7

J3 8
J3 2

J3 1

AUTOTRANSFORMER OPTION

ALTERNATE WIRING FOR LOW SPEED

065129

COMMON

-t

DEFROST

TEMP.

SENSOR

T7

8

T7

1234567

WHITE/RED

YELLOW

W/R

Y

GREEN

STANDARD HRV 600i WIRING

G

LOW SPEED

R2-1

5

COM

NO

3

NC

W

8 A

INPUT

1 2

MOTOR

INTAKE DAMPER

1 2

MOTOR

CORE DAMPER

BK/R

R

121

T2

121

R

R

BK

Y

OUTPUT

AUTOTRANSFORMER

W/R

R

J1 5

J1 4

W/R

2

2

BK/R

NOTE 1

1
2

MOTOR

EXHAUST

CLMH

R

W

BL

3

456

3

456

BL

R

W

R4-1

NO

NO

COM

COM

A B C D E F G

. .

. .

. .

JU1

CLMH

W/BL

BK/Y

7

8

9

7

8

9

BK/Y

MEDIUM SPEED

R

NO

COM

BK

J1 3

F F I OC OL Y R G B

1 2 3 4 5 6 7 8 9

J4

MOTOR

SUPPLY

R

BL

BK/Y

11

12

10

11

12

10

BL

BK/Y

SELECTION

(NOTE 2)

R4-2

NOCOM

O

J1 6

J1 8

W

J3

J2

1 2 3

N/C

N/O

COMM.

W

BK

BK/R

J1 9

4

G

J6

J5

NO

NC

COM

R3-1

769

8

J1

NEUT

L1

GND

120VAC 60Hz

W/BL

W

W

J1 2

J1 1

3 2 1

48445 POWER

CONTROL BOARD

WALL CONTROL RED

WALL CONTROL BLACK

VE0023A

Page 21

VE0024A

NOTES

WALL CONTROL GREEN

WALL CONTROL YELLOW

LOW SPEED (3.9 K)

COM

T7

T7

WALL CONTROL BLACK

HIGH SPEED

8

9

1011121314

1234567

OCC./

UNOCC.

REMOTE FAN

INTERLOCK (FF)

WALL CONTROL RED

Appendix H Continued

Wiring Diagram

Wiring Diagram for 700 cfm unit

110 VOLTS

LOW VOLTAGE

AND FIELD WIRE

1- IF ANY OF THE ORIGINAL WIRE, AS

SUPPLIED, MUST BE REPLACED,

USE THE SAME OR EQUIVALENT WIRE.

2- THE FIELD WIRING MUST COMPLY

WITH APPLICABLE CODES,

ORDONNANCES AND REGULATIONS.

BK
Y

R

G
BL

BL

A B C D E F G

1
2

. .

. .

. .

JU1

LO

COMM

PART # 201234

EXHAUST MOTOR

J4

HIGH

3

2

1

R

BK/Y

W/BL

J3

F F I OC OL Y R G B

1 2 3

1

J2

N/C

N/O

COMM.

GND

4

G

769

4

8

J1

3 2 1

LO

1

R

J1 4

COMM

HIGH

3

2

W/Y

BK/Y

J1 6

J1 5

GND

4

G

BK/Y

W/BL

PART # 201234

SUPPLY MOTOR

BK

J1 2

J1 3

J1 9

BK/R

8

6
4
2

K7

115 VOLT RELAY

120VCA 60Hz

L1

GND

NEUT

W

W

W

W

J1 8

J1 9

W/R

BK/R

7

8

6

5
3

4

1

2

K6

PART # 202729

115 VOLT RELAY

RED

RWW/BL

COLOR CODE

BLUE

BLBKBK/R

H1 H2

120 VAC

Transformer

PAR T

J1 8

# 065106

W/R

7
5

3

1

PART # 202729

WHITE

WHITE/BLUE

WHITE/RED

WHITE/YELLOW

W/R

W/Y

BLACK

BLACK/RED

BLACK/YELLOW

GREEN

BK/YGO

W

24 VAC

X2 X1

BL

R
O

YELLOW

Y

ORANGE

SENSOR

DEFROST

TEMPERATURE

JU1G - INTERMITTENT STANDBY (SI)

-t

JU1 - F EXTENDED DEFROST

CONTROL BOX

48444 POWER CONTROL BOARD

Page 22

Appendix H Continued

Wiring Diagram

Wiring Diagram for 1200 cfm unit

ORANGE

RED

WHITE

WHITE/BLUE

WHITE/RED

115 VOLTS

LOW

VOLTAGE

ORW

W/BL

W/R

COLOR CODE

NOTES

1- REMOVE THIS CONNECTION IF AUTOTRANSFORMER IS USED.

2- IF ANY OF THE ORIGINAL WIRE, AS SUPPLIED, MUST BE

REPLACED, USE THE SAME OR EQUIVALENT WIRE.

3- THE FIELD WIRING MUST COMPLY WITH APPLICABLE

CODES, ORDONNANCES AND REGULATIONS.

BLUE

BLACK

BLACK/RED

BLACK/YELLOW

BLBKBK/R

BK/Y

W

CC

GREEN

G

6

4

21

CONTROL BOX

W

WALL CONTROL GREEN

WALL CONTROL YELLOW

LOW SPEED (3.9 K)

COM

9

1011121314

OCC./

UNOCC.

HIGH SPEED

BK
Y

R

G
BL

BL

REMOTE FAN

INTERLOCK (FF)

J3 9

J3 6

J3 7

J3 8
J3 2

J3 1

AUTOTRANSFORMER OPTION

ALTERNATE WIRING FOR LOW SPEED

COMMON

-t

DEFROST

TEMP.

SENSOR

T7

8

T7

1234567

YELLOW

Y

LOW SPEED

R2-1

5

COM

NO

3

NC

1 2

MOTOR

INTAKE DAMPER

1 2

MOTOR

CORE DAMPER

STANDARD HRV 1200i WIRING

R

121

T2

121

R

BK

10 A

Y

BK

INPUT

OUTPUT

AUTOTRANSFORMER

J1 4

W

BK

MOTOR

CLMH

W/BL

8

9

8

9

10

10

SUPPLY

R

BL

BK/Y

11

12

11

12

R

BL

MOTOR

EXHAUST

CLMH

W/R

R

W

2

2

BK/R

3

3

BL

456

456

BL

R

BK/Y

7

7

BK/Y

BK/R

R

BK/Y

MEDIUM SPEED

CONNECTIONS

J6

J5

NEUT

L1

GND

G

120VAC 60Hz

W/BL

W

W

NOTE 1

R4-1

NO

COM

NC

R3-4

NO

COM

NO

COM

W/R

BL

J1 5

W

J1 7

J1 1

A B C D E F G

1
2

. .

. .

. .

JU1

J4

R

R4-2

NOCOM

NO

COM

NO

COM

O

BK

J1 3

1 2 3

N/O

4

J2

BK/R

J1 6

J1 9

769

8

J1

W

J1 1

F F I OC OL Y R G B

J3

1 2 3 4 5 6 7 8 9

N/C

COMM.

NC

R3-1

W

J1 2

3 2 1

48445 POWER

CONTROL BOARD

WALL CONTROL RED

WALL CONTROL BLACK

VE0022A

Page 23

Appendix I

Trouble Shooting

SYMPTOMS POSSIBLE CAUSES SOLUTIONS

Inside air is too dry Over ventilation - speed setting Adjust speed setting

too high
Dehumidistat setting is too low Set dehumidistat control in a

higher position (if applicable)

Persistent condensation on Improper adjustment of Adjust dehumidistat control knob
windows, walls, ceilings, etc. dehumidistat control to a lower setting

Improper ventilation rate Install a dehumidistat (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 cores 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 exchange core freezing up Imbalance of supply and exhaust air Check filters and cores for blockage

Check balance of airflows

Defrost damper not functioning Check for operation of both

defrost damper actuators

For technical assistance and warranty information,

please call your local supplier.