Venmar 41502 User manual

VB0069
VB0074
These products earned the ENERGY STAR®by
meeting strict energy efficiency guidelines set by
Natural Resources Canada and the US EPA. They
meet ENERGY STAR requirements only when used
in Canada.
06010A rev. 17
INSTALLATION GUIDE FOR
VENMAR AVS UNITS
CONSTRUCTO 1.0 HRV AND CONSTRUCTO 1.0 ERV
Model no.: 41502
(HRV with top ports)
Model no.: 41500
(HRV with side ports)
Model no.: 41506
(ERV with top ports)
Model no.: 41504
(ERV with side ports)
VB0070
VB0071
RESIDENTIAL USE ONLY
READ AND SAVE THESE INSTRUCTIONS
! !

2
Because of the large amount of models covered by this publication, the illustrations are typical ones. Some details of your unit may be
slightly different than the ones shown.
Please take note that this manual uses the following symbols to emphasize particular information:
NOTE: Indicates supplementary information needed to fully complete an instruction.
We welcome any suggestions you may have concerning this manual and/or the unit, and we would appreciate hearing your comments on
ways to better serve you. Please contact us by phone at 1-800-567-3855.
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, may severely damage the unit and/or its components.
ABOUT THIS MANUAL
ABOUT THESE UNITS
LIMITATION
For residential (domestic) installation only. Installation work and electrical wiring must be done by a qualified person(s) in accordance with
all applicable codes and standards, including fire-rated construction codes and standards.
iWARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSON(S) OBSERVE THE FOLLOWING:
1. Use this unit only in the manner intended by the manufacturer. If you have questions, contact the manufacturer at the address or
telephone number listed in the warranty.
2. Before servicing or cleaning the unit, disconnect power cord from electrical outlet.
3. This unit is not designed to provide combustion and/or dilution air for fuel-burning appliances.
4. When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden utilities.
5. Do not use this unit with any solid-state speed control device other than following main wall controls:
6. This unit must be grounded. The power supply cord has a 3-prong grounding plug for your personal safety. It must be plugged into a
mating 3-prong grounding receptacle, grounded in accordance with the national electrical code and local codes and ordinances. Do
not remove the ground prong. Do not use an extension cord.
7. Do not install in a cooking area or connect directly to any appliances.
8. Do not use to exhaust hazardous or explosive materials and vapors.
9. When performing installation, servicing or cleaning these units, it is recommended to wear safety glasses and gloves.
10. Due to the weight of the unit, two installers are recommended to perform installation.
11. When applicable local regulation comprise more restrictive installation and/or certification requirements, the aforementioned
requirements prevail on those of this document and the installer agrees to conform to these at his own expense.
CAUTION
1. To avoid prematurate clogged filters, turn OFF the unit during construction or renovation.
2. Please read specification label on product for further information and requirements.
3. Be sure to duct air outdoors – Do not intake/exhaust air into spaces within walls or ceiling or into attics, crawl spaces, or garage.
4. Intended for residential installation only in accordance with the requirements of NFPA 90B (for a unit installed in U.S.A.) or Part 9 of the
National Building Code of Canada (for a unit installed in Canada).
5. Do not run any air ducts directly above or closer than 2 ft (0.61 m) to any furnace or its supply plenum, boiler, or other heat producing
appliance. If a duct has to be connected to the furnace return plenum, it must be connected not closer than 9’10” (3 m) from this plenum
connection to the furnace.
6. The ductwork is intended to be installed in compliance with all local and national codes that are applicable.
7. When leaving the house for a long period of time (more than two weeks), a responsible person should regularly check if the unit
operates adequately.
8. If the ductwork passes through an unconditioned space (e.g.: attic), the unit must operate continuously except when performing
maintenance and/or repair. Also, the ambient temperature of the house should never drop below 18°C (65°F).
MAIN CONTROL AUXILIARY CONTROLS
ALTITUDE, DECO-TOUCH, LITE-TOUCH CONSTRUCTO,
SIMPLE-TOUCH CONSTRUCTO OR CONSTRUCTO
DEHUMIDISTAT,
20/40/60 MINUTE PUSH-BUTTON TIMER
20-MINUTE LIGHTED PUSH-BUTTON TIMER
AND 60-MINUTE CRANK TIMER

3
TABLE OF CONTENTS
1. T YPICAL INSTALLATIONS ......................................................................................................................... 4-5
1.1 FULLY DUCTED SYSTEM ..........................................................................................................................................4
1.2 CENTRAL DRAW POINT ...........................................................................................................................................4
1.3 SIMPLIFIED INSTALLATION .........................................................................................................................................4
1.4 ATTIC INSTALLATION FOR ERV UNITS ONLY ...............................................................................................................5
2.INSTALLATION..................................................................................................................................... 5-10
2.1 INSPECT THE CONTENT OF THE BOX........................................................................................................................ .5
2.2 LOCATING THE UNIT ...............................................................................................................................................5
2.3 UNIT PREPARATION ............................................................................................................................................ 5-6
2.4 HOW TO HANG THE UNIT ........................................................................................................................................6
2.5 PLANNING OF THE DUCTWORK..................................................................................................................................7
2.6 INSTALLING THE DUCTWORK AND REGISTERS ..........................................................................................................7-8
2.7 CONNECTING THE DUCTS TO THE UNIT ......................................................................................................................9
2.8 INSTALLING THE TANDEM®TRANSITION KIT..................................................................................................................9
2.9 INSTALLING 2 EXTERIOR HOODS .............................................................................................................................10
3.CONTROLS.......................................................................................................................................10-12
3.1 INTEGRATED CONTROL ..........................................................................................................................................10
3.2 ELECTRICAL CONNECTION TO OPTIONAL WALL CONTROLS ..................................................................................... 11-12
3.2.1 ELECTRICAL CONNECTION TO ALTITUDE MAIN WALL CONTROL ....................................................................................11
3.2.2 ELECTRICAL CONNECTION TO DECO-TOUCH MAIN WALL CONTROL..............................................................................11
3.2.3 ELECTRICAL CONNECTION TO LITE-TOUCH CONSTRUCTO OR SIMPLE-TOUCH CONSTRUCTO MAIN WALL CONTROLS .............11
3.2.4 ELECTRICAL CONNECTION TO CONSTRUCTO MAIN WALL CONTROL ..............................................................................11
3.2.5 ELECTRICAL CONNECTION TO OPTIONAL AUXILIARY WALL CONTROLS ...........................................................................12
4.ELECTRICAL CONNECTION TO THE FURNACE ................................................................................................12
5.WIRING DIAGRAM ..................................................................................................................................13
6.BALANCING THE UNIT ..............................................................................................................................14
7. C ONNECTING THE DRAIN (HRV UNITS ONLY).............................................................................................15
8.SERVICE PARTS.....................................................................................................................................16
9.TROUBLESHOOTING ...........................................................................................................................17-18

4
1. TYPICAL INSTALLATIONS
Installations may vary according to the type of unit and the ports configuration (top or sides). Use the following illustrations as guidelines
to help you decide on how the unit will be installed.
All the units should be hung from the joists.
In every case, bathroom fans and a range hood should be used to exhaust stale air. Also, for homes with more than one level, we
recommend one exhaust register at the highest level.
There are 3 installation methods: Fully ducted, Central Draw Point and Simplified Installation.
NOTE: An electrical outlet has to be available within 3 feet of the unit.
1.1 FULLY DUCTED SYSTEM (PRIMARILY FOR HOMES WITH RADIANT HOT WATER OR ELECTRIC BASEBOARD HEATING)
VH0055
Stale air coming from the registers located at the highest level of the house
is exhausted outdoors. Fresh air from outdoors is filtered and supplied by
the register located in the lowest liveable level.
Homes with more than one level require at least one exhaust register at the
highest level.
See figure at right.
1.2 CENTRAL DRAW POINT (CONNECTION TO AFORCED AIR SYSTEM)
VH0056
Stale air coming from the registers located at the highest level of the house
is exhausted outdoors. Fresh air from outdoors is filtered and supplied to the
return (plenum) or the supply duct of the forced air unit. See figure at right.
For this type of installation, it is not essential that the forced air system
blower runs when the unit is in operation, but we recommend it.
NOTE: Home with multiple forced air systems should have one unit on each
system.
1.3 SIMPLIFIED INSTALLATION (CONNECTION TO AFORCED AIR SYSTEM)
VH0057
Stale air is exhausted outdoors. Fresh air from outdoors is filtered and
supplied to the return (plenum) or the supply duct of the forced air unit.
See figure at right.
To avoid cross-contamination and achieve the highest efficiencies, the
forced air system blower must always be ON.
NOTE: Home with multiple forced air systems should have one unit on each
system.

5
1. TYPICAL INSTALLATIONS (CONT’D)
1.4 ATTIC INSTALLATION FOR ERV UNITS ONLY
All 3 types of installations can be used in the attic (Fully ducted system, Central Draw Point or Simplified). The example shown below is a
Simplified installation (connection to a forced air system).
NOTE: To get the most of your ERV unit, the ambient temperature around the unit should be conditioned. If the unit has to be installed in
an unconditioned space, the heat gains or losses from the unit and the ducts could increase the operation costs of the unit.
CAUTION
• Due to the potential temperature difference between the attic and the rest of the house, all unit ducts must be insulated.
• The attic temperature must always be above 0°C (32°F) and under 65°C (149°F).
Stale air is exhausted outdoors. Fresh air from outdoors is filtered and
supplied to the return (plenum) of the forced air unit. See figure at right.
To avoid cross-contamination and achieve the highest efficiencies, the
forced air system blower must always be ON.
NOTE: Home with multiple forced air systems should have 1 unit on
each system.
VH0058
2. INSTALLATION
2.1 INSPECT THE CONTENTS OF THE BOX
• Inspect the exterior of the unit for shipping damage. Ensure that there is no damage to the door, door latches, power cord, etc.
• Remove and discard both transport brackets (A) and open the door. Discard the styrofoam
fillers (ERV units only) and remove the hardware kit from the unit. Inspect the interior of the
unit for damage. Ensure that heat or energy recovery core, core filters, insulation, dampers,
etc. are all intact.
2.2 LOCATING THE UNIT
Choose an appropriate location for the unit.
• Within an area of the house where the ambient temperature is kept between 18°C (65°F) and 40°C (104°F).
• So as to provide easy access to the interior of the unit, for semi-annual and annual maintenance.
• Close to an exterior wall, so as to limit the length of the insulated flexible duct to and from the unit.
• Away from hot chimneys and other fire hazards.
• Allow for a power source (standard 3-prong grounding outlet).
• For HRV units ONLY: Close to a drain. If no drain is close by, use a pail to collect run-off.
2.3 UNIT PREPARATION
Both HRV and ERV units are equipped with 2 ports having integrated balancing damper.Turn the thumb screw
(B) clockwise to manually open and adjust the damper (C).
HRV UNITS: Set the Fresh air to building port to wide open position, and adjust the Exhaust air to outdoors port
to 3rd notch.
NOTE: If the unit needs to be balanced, adjust the damper of the Exhaust air to outdoors port to wide open
position. See Section 6.
ERV UNITS: Set both Fresh air to building port and Exhaust air to outdoors port to wide open position.
VD0183
A
V
J003
2
B
C
Port with integrated balancing
damper - Top view

6
2. INSTALLATION (CONT’D)
2.3 UNIT PREPARATION (CONT’D)
The door latches location can be changed from sides to front of the unit, according to the installation needs.
To do so, turn the unit upside down. Open the latches an unscrew them from the unit. Install the latches on their new locations.
VD0176
Latches on sides of the unit Latches in front of the unit
VB0094
VO0089
VO0090
2.4 HOW TO HANG THE UNIT
Hang the unit with the 4 chains, hooks and springs
provided.
CAUTION
Make sure the unit is level.
VD0184
VD0185
VD0187
If there is not enough space on top of the unit, slightly bend the hooks and install them
lower on the unit. See figure at right.

7
2. INSTALLATION (CONT’D)
2.5 PLANNING OF THE DUCTWORK
• Keep it simple. Plan for a minimum of bends and joints.
• Keep the length of insulated ducts to a minimum.
• Do not ventilate crawl spaces or cold rooms. Do not attempt to recover the exhaust air from a dryer or a range hood. This would
cause clogging of the filters and recovery module.
• If the house has two floors or more, be sure to plan for at least one exhaust register on the highest lived-in level.
2.6 INSTALLING THE DUCTWORK AND REGISTERS
2.6.1 FULLY DUCTED SYSTEM (AS ILLUSTRATED IN SECTION 1.1)
Stale air exhaust ductwork:
• Install the stale air exhaust registers where the contaminants are produced: Kitchen, living room, etc. Position the registers as far
from the stairway as possible and in such a way that the air circulates in all the lived-in spaces in the house.
• If a register is installed in the kitchen, it must be located at least 4 feet (1.2 m) from the range.
• Install the registers 6 to 12 inches (152 to 305 mm) from the ceiling on an interior wall OR install them in the ceiling.
Fresh air distribution ductwork:
• Install the fresh air distribution registers in bedrooms, dining rooms, living room and basement.
• Keep in mind that the fresh air registers must be located as far as possible from the stale air registers.
• Install the registers in the ceiling OR 6 to 12 inches (152 to 305 mm) from the ceiling on an interior wall.The duct length should be
at least 15’ (4.6 m). (The fresh air will then flow through the room and mix with room air, ensuring a continuous renewed airflow.)
• If a register must be floor installed, direct the airflow up the wall.
2.6.2 CENTRAL DRAW POINT SYSTEM (AS ILLUSTRATED IN SECTION 1.2)
Stale air exhaust ductwork:
Same as for Fully Ducted System, described on point 2.6.1
Fresh air distribution ductwork:
There are 2 methods for connecting the unit to the furnace/air handler:
Method 1: Supply side connection
• Cut an opening into the furnace supply duct at least 18 inches (0.5 m) from the
furnace/air handler.
• Connect this opening to the Fresh air to building port of the HRV/ERV (use steel
duct, see figure at right).
• Make sure the HRV/ERV duct forms an elbow inside the furnace/air handler ductwork.
• If desired, interlock (synchronize) the furnace/air handler blower operation (see
Section 4).
Method 2: Return side connection
• Cut an opening into the furnace return duct not less than 10 feet (3.1 m) from the
furnace/air handler (A+B).
• Connect this opening to the Fresh air to building port of the HRV/ERV(see figure at right).
NOTE: For Method 2, it is not essential that the furnace/air handler runs when the unit is in
operation, but we recommend it. If desired, interlock (synchronize) the furnace/air
handler blower operation (see Section 4).
WARNING
Never install a stale air exhaust register in a closed room where a combustion device operates, such as a gas furnace, a gas
water heater or a fireplace.
!
WARNING
When performing duct connections, always use approved tools and materials. Respect all corresponding laws and safety
regulations. Please refer to your local building code.
!
CAUTION
When performing duct connections to the furnace supply duct, this duct must be sized to support the additional airflow
produced by the HRV/ERV. Also, use a steel duct.
VJ0036
STEEL DUCT
MINIMUM 18"
(0.5 M)
B
A
VJ0035 A+B= NOT LESS
THAN 10' (3.1 M)

8
2. INSTALLATION (CONT’D)
2.6 INSTALLING THE DUCTWORK AND REGISTERS (CONT’D)
2.6.3 SIMPLIFIED INSTALLATION (AS ILLUSTRATED IN SECTION 1.3)
There are 2 methods for connecting the unit to the furnace/air handler:
Method 1: Supply-return connection Method 2: Return-return
Stale air intake:
• Cut an opening into the furnace/air handler return duct not less than 10 feet (3.1 m) from the furnace/air handler (A+B).
• Connect this opening to the Exhaust air from building port of the HRV/ERV.
Fresh air distribution:
• Same instructions as for Method 1 or Method 2, Section 2.6.2.
For Method 2 (Return-return), make sure there is a distance of at least 3 feet (0.9 m) between the 2 connections to the furnace/
air handler.
NOTE: For Method 1, it is not essential to synchronize the furnace blower operation with the unit operation, but we recommend it.
WARNING
When performing duct connections, always use approved tools and materials. Respect all corresponding laws and/or safety
regulations. Please refer to your local building code.
!
CAUTION
When performing duct connections to the furnace supply duct, this duct must be sized to support the additional airflow
produced by the HRV/ERV. Also, use a steel duct. For a Return-Return installation, the furnace blower must be in operation
when the HRV/ERV is in operation.
B
A
VJ0038
B
A
VJ0037
STEEL DUCT
MINIMUM 18"
(0.5 M)
A+B= NOT LESS
THAN 10' (3.1 M)
MINIMUM 3'
(0.9 M)
A+B= NOT LESS
THAN 10' (3.1 M)
CAUTION
If using Method 2, make sure the furnace/air handler blower operation is synchronized with the unit operation! See Section 4.

9
2. INSTALLATION (CONT’D)
2.7 CONNECTING THE DUCTS TO THE UNIT
Insulated flexible ducts:
Use the following procedure for connecting the insulated flexible ducts to the port of the unit (Exhaust air to outdoors and Fresh
air from outdoors ports).
CAUTION
Make sure the balancing dampers are set to their appropriate position before connecting the ducts to the ports. See Section 2.3.
VJ0039 VJ0040 VJ0043 VJ0041 VJ0042
Pull back the insulation to expose
the flexible duct.
Attach the flexible duct
to the port using tie
wrap.
Pull the insulation over
the joint and tuck in
between the inner
and outer rings of the
double collar.
Pull the vapor barrier
over the insulation and
over the outer ring of
the double collar.
Apply duct tape to
the joint making an
airtight seal. Avoid
compressing the
insulation when pulling
the tape tightly around
the joint.
Compressed insulation
loses its R value and
causes water dripping
due to condensation
on the exterior surface
of the duct.
CAUTION
Make sure the
vapor barrier on
the insulated ducts
doesnot tearduring
installation to avoid
condensation
within the ducts.
Rigid ducts:
Use a small length of flexible duct to connect the rigid duct to the ports in order to avoid vibration transmissions. Use tie-wraps to
perform connections.
CAUTION
Do not use screws to connect the rigid ducts to the ports.
2.8 INSTALLING THE TANDEM®TRANSITION* KIT
The joist opening needed to install the Tandem®transition must be 9¾” minimum. The
maximum height of the Tandem®transition is 8¾”.
To connect the insulated flexible ducts to the Tandem®transition (Exhaust air to
oudoors and Fresh air from outdoors), follow the instructions included with the
Tandem®transition kit (part no.14690).
*Patented.
NOTE: If the joist are perpendicular to the ducts, or if the connection to the exterior hood is in a limited area, the installation will need
2 exterior hoods instead of one. See next Section 2.9 INSTALLING 2 EXTERIOR HOODS.
VR0003
Tandem® transition kit

10
2. INSTALLATION (CONT’D)
2.9 INSTALLING 2 EXTERIOR HOODS
Choose an appropriate location to install the exterior hoods:
• There must be a minimum distance of 6’ (1.8 m)
between the hoods to avoid cross-contamination
• There must be a minimum distance of 18” (457 mm)
from the ground
Refer to figure at right for connecting insulated ducts to
the exterior hoods. An “Anti-gust intake hood” should be
installed in regions where a lot of snow is expected to fall.
WARNING
Make sure the intake hood is at least 6 feet (1.8 m)
away from any of the following:
• Dryer exhaust, high efficiency furnace vent, central
vacuum vent
• Gas meter exhaust, gas barbecue-grill
• Any exhaust from a combustion source
• Garbage bin and any other source of contamination
!
3. CONTROLS
3.1 INTEGRATED CONTROL
All units are equipped with an integrated control, located under the unit, in front of the
electrical compartment. Use the push button (1) to control the unit. The LED (2) will then
shows on which mode the unit is in. Refer to table below.
WARNING
Risk of electric shock. Before performing
any maintenance or servicing, always
disconnect the unit from its power source.
AVERTISSEMENT
Danger d’électrocution. Débranchez
toujours l’appareil avant d’entreprendre
des travaux d’entretien ou de réparation.
CAUTION
Unscrew both screws to open the electrical
compartment. To completely remove, detach
from its retention wire inside.
ATTENTION
Dévisser les deux vis pour ouvrir le compartiment
électrique. Pour retirer complètement, le
détacher de son fil de rétention intérieur.
No l igh t OFF or remote controled
Amber light LOW speed
Green ligh HIGH speed
Blinking light See User Manual
Sans lumière Arrêté ou contrôlé
par contrôle mural
Lumière ambre Basse vitesse
Lumière verte Haute vitesse
Clignotant Voir guide d’utilisation
VD0182 12
LED COLOR RESULTS
AMBER UNIT IS ON LOW SPEED
GREEN UNIT IS ON HIGH SPEED
NOLIGHT UNIT IS OFF OR CONTROLLED BY AMAIN CONTROL
VD0028
EXHAUST HOOD
INTAKE HOOD
TAPE AND DUCT TIE
18"
(457 MM)
6'
(1.8 M)
18"
(457 MM)
18"
(457 MM)
6'
(1.8 M)
6" Ø
(152 MM)
OPTIONAL DUCT
LOCATION
If a problem occurs during the unit operation, its integrated control LED (2) will blink. The color of the blinking light depends on the type of
error detected. Refer to Section 9 TROUBLESHOOTING on page 17 for further details.
3.1.1 BOOT SEQUENCE
The unit boot sequence is similar to a personal computer boot sequence. Each time the unit is plugged after being unplugged, or
after a power failure, the unit will perform a 30-second booting sequence before starting to operate. During the booting sequence,
the integrated control LED will light GREEN or AMBER for 5 seconds, and then will shut off for 2 seconds. After that, the LED will
light RED for the rest of the booting sequence. During this RED light phase, the unit is checking and resetting the motorized damper
position. Once the motorized damper position completely set, the RED light turns off and the booting sequence is done.
NOTE: No command will be taken until the unit is fully booted.

11
3. CONTROLS (CONT’D)
3.2 ELECTRICAL CONNECTION TO OPTIONAL WALL CONTROLS
For more convenience, this unit can also be controlled using an optional main wall control.
NOTES: 1. The integrated control must be turned OFF to use an optional main control.
2. If an optional auxiliary control is used, if activated, this auxiliary control will override the optional main control.
WARNING
Always disconnect the unit before making any connections. Failure in disconnecting power could result in electric shock or
damage of the wall control or electronic module inside the unit.
!
CAUTION
Never install more than one optional main wall control per unit. Make sure that the wires do not short-circuit between
themselves or by touching any other components on the wall control. Avoid poor wiring connections. To reduce electrical
interference (noise) potential, do not run wall control wiring next to control contactors or near light dimming circuits, electrical
motors, dwelling/building power or lighting wiring, or power distribution panel.
Use the terminal connector included in the installation kit to perform the electrical
connection for main and optional wall controls. Check if all wires are correctly inserted in
their corresponding holes in the terminal block. (A wire is correctly inserted when its orange
receptacle is lower than another one without wire. On illustration at right, wire Ais correctly
inserted, but not wire B.)
3.2.1 ELECTRICAL CONNECTION TO ALTITUDE
MAIN WALL CONTROL
3.2.2 ELECTRICAL CONNECTION TO DECO-TOUCH
MAIN WALL CONTROL
3.2.3 ELECTRICAL CONNECTION TO LITE-TOUCH
CONSTRUCTO OR SIMPLE-TOUCH CONSTRUCTO
MAIN WALL CONTROLS
3.2.4 ELECTRICAL CONNECTION TO CONSTRUCTO
MAIN WALL CONTROL
NO C NC I OC OL Y R G B
VE0175
SMART
SET
MODE
PREF
NO C NC I OC OL Y R G B
VE0250
NO C NC I OC OL Y R G B
BG
MAIN WALL
CO
NTR
O
L
LITE-TOUCH CONSTRUCTO
and
SIMPLE-TOUCH CONSTRUCTO
REAR VIEW
G B
Y
VE0325A
Y
NO C NC I OC OL Y R G B
VE0102
--5°C
23° F
5°C
41°F
C
O
M
F
O
R
T
Z
O
N
E
-20°C
-4°F
OFF MIN MAX
#
X
X
X
X
X
0
1
/
9
8
CONSTRUCTO
VE0272
A
B
NOTE: On some older wall control models, the left
terminal is identified OC instead of Y; connect
this terminal to Yon terminal connector.

12
3. CONTROLS (CONT’D)
3.2 ELECTRICAL CONNECTION TO OPTIONAL WALL CONTROLS (CONT’D)
3.2.5 ELECTRICAL CONNECTION TO OPTIONAL AUXILIARY WALL CONTROLS
NOTE: If an optional auxiliary wall control is
activated and then, the Dehumidistat is
being activated, this one will override the
auxiliary wall control commands.
NO C NC I OC OL Y R G B
20/40/60-MINUTE or 20-MINUTE
PUSH-BUTTON SWITCHES
(5 MAXIMUM)
60-MINUTE
CRANK TIMER
VE0089A
DEHUMIDISTAT
Once the wall control(s) connections have been made, insert the terminal connector in the bottom of the unit, on the electrical compartment
front face.
WARNING
Risk of electric shock. Before performing
any maintenance or servicing, always
disconnect the unit from its power source.
AVERTISSEMENT
Danger d’électrocution. Débranchez
toujours l’appareil avant d’entreprendre
des travaux d’entretien ou de réparation.
CAUTION
Unscrew both screws to open the electrical
compartment. To completely remove, detach
from its retention wire inside.
ATTENTION
Dévisser les deux vis pour ouvrir le compartiment
électrique. Pour retirer complètement, le
détacher de son fil de rétention intérieur.
No l igh t OFF or remote controled
Amber light LOW speed
Green ligh HIGH speed
Blinking light See User Manual
Sans lumière Arrêté ou contrôlé
par contrôle mural
Lumière ambre Basse vitesse
Lumière verte Haute vitesse
Clignotant Voir guide d’utilisation
VD0182
TERMINAL
CONNECTOR
NOTE: For information about the operation of the wall controls, refer to the Main and auxiliary wall controls user guide.
4. ELECTRICAL CONNECTION TO THE FURNACE
WARNING
Never connect a 120-volt AC circuit to the terminals of the furnace interlock (standard wiring). Only use the low voltage class
2 circuit of the furnace blower control.
!
For a furnace connected to a cooling system:
On some older thermostats, energizing the “R” and “G” terminals at the furnace has the effect of energizing “Y” at the thermostat and
thereby turning on the cooling system. If you identify this type of thermostat, you must use the ALTERNATE FURNACE INTERLOCK WIRING.
STANDARD FURNACE INTERLOCK WIRING ALTERNATE FURNACE INTERLOCK WIRING
W R G Y
W
R
G
C
Y
UNIT TERMINAL CONNECTOR
THERMOSTAT
TERMINALS
FOUR
WIRES
TWO WIRES
heating only
FURNACE
24-VOLT
TERMINAL BLOCK TWO WIRES COOLING SYSTEM
NO C NC I OC OL Y R G B
W R G Y
W
R
Y
R
G
Y
C
THERMOSTAT
TERMINAL
4 WIRES
2 WIRES
heating only wiring
nuts
FURNACE
24-VOLT
TERMINAL BLOCK 2 WIRES COOLING SYSTEM
NO
NC
C
UNIT TERMINAL CONNECTOR
NO C NC I OC OL Y R G B
VE0108A

13
5. WIRING DIAGRAM
WARNING
• Risk of electric shocks.Before performing any maintenance or servicing,always disconnect the unit from its power source.
• This product is equipped with an overload protection (fuse). A blown fuse indicates an overload or a short-circuit situation.
If the fuse blows, unplug the product and check the polarity and voltage output from the outlet. Replace the fuse as per the
servicing instructions (refer to wiring diagram for proper fuse rating) and verify the product. If the replaced fuse blows, it may
be a short-circuit and the product must be discarded or returned to an authorized service center for examination and/or repair.
!
Field wiring
remote control
(see notes 3 & 4)
120 V, 60 Hz W1
J5 J7 J6 J4 ELECTRONIC
ASSEMBLY
1 2 3 1 2 1 2 1 2 3
1234
12
12345
12345
J8
J9
J11
J10
12
J12
J13
J14
10
9 8 7 6 5 4 3 2 1
BK
24 V class 2
9.5 V class 2
120V, 60Hz
Neutral
120 V, 60 Hz
Line
CPU
K2 K4 K5
J5-2
J10-1J10-2
See note 1
120 V
106 V
81 V
neutral
Door interlock switch
(magnetically actuated
Exhaust fan
motor
1234512
12
J3
J2 J1
t°
Damper motor
BK
Override switch
Furnace blower interlock
J14-1 : NO J14-2 : COM J14-3 : nc
(optional; see notes 3, 5)
DAMPER ELECTRONIC ASSEMBLY
Defrost temperature sensor
WIRING DIAGRAM LOGIC DIAGRAM
Exhaust fan motor
Supply fan motor
J5-1 J5-3 J7-2 J7-1 J4-1 J4-3 J6-2 J6-1
K1 K3
K2
24 V class 2
9.5 V class 2
120 V
neutral
J9-1
J9-2
J9-3
J4-2
J9-4 Exhaust fan motor
capacitor
Supply fan motor
capacitor
J8-1 J8-2 J8-4 J8-5
K4 J12-2
J12-1
A1
Damper motor
J3-2 J3-1
J2-2 J2-1
F1
J12-5 J12-4 J12-3 J2-3
J2-4 J2-5
Door interlock switch
J11-2 J11-1
K1 K3
K5 J14-3
J14-1 J14-2
Furnace blower interlock (optional; see notes 3, 5)
J14-4 J14-5 J14-6 J14-7 J14-8 J14-9
J14-10
Override switch (optional; see notes 3, 4) Field wiring remote control (see notes 3, 4)
ICP
BK
YRG
W W
BK
W
BL
G
BK BL BN
BN
R R R R
BK BL
Exhaust fan
motor
capacitor
Supply fan
motor
capacitor
Supply fan
motor
G
G
O
O
Y
Y
BK W
A2
A2
M3
T1
S1
R1
A1
F1
M1
C1 C2
M2
(optional; see
notes 3 & 4)
VE0324A
COLOR CODE
BK BLACK BL BLUE BN BROWN G GREEN RRED W WHITE Y YELLOW nc no connection
Critical characteristic.
reed switch)
JU1
1
23
MED HI
321
HI MED
JU1
NOTES
1. Use specified UL listed/CSA Certified line fuse
(3A, 3AG Type).
2. If any of the original wire, as supplied, must
be replaced, use the same equivalent wire.
3. Field wiring must comply with applicable
codes, ordinances and regulations.
4. Remote controls (class 2 circuit) available, see instruction manual.
5. Furnace fan circuit must be class 2 circuit only.
Ref
1
Ref
1
FAN MOTORS SPEED SELECTION
SETTING Ref 1 FAN SPEEDS (Voltage) Factory shipped Low - High (106) Med-High select Med (64) - High (106) Low-Med select Low - Med (81)
BL BL
BK R
BL BL
GR R
PBL
BK R
71 V
64 V 57 V
R
BL
BL R
BK
P
P
BN
BN
GR
GR
nc nc nc
GR GREY
O ORANGE P PURPLE
O O
Y
Y
106 V
81 V
71 V
64 V 57 V
BK
W
BL
R
P
BN
GR
BK
W
BL
R
P
BN
GR
120 V
106 V
81 V
71 V
64 V 57 V
Rnc
BK
Low speed
capacitor C1 BK
BL
MED
R
LO
BK
Low speed
capacitor
BK
Line voltage factory wiring Class 2 low voltage factory wiring Class 2 low voltage field wiring
Setting for test purpose only
1
23
MED HI
BL BL
BK R
Ref 1 JU1
Low - High (120)

14
6. BALANCING THE UNIT
To avoid balancing, the difference between stale air ducts total length and fresh air ducts total length must not exceed 50 ft. However, even
if the stale air ducts and fresh air ducts lengths are almost equal, your local building codes may require balancing the unit.
If the unit does not need to be balanced, shut all the pressure taps (located on the unit door) with the small plastic plugs included in the
hardware kit.
6.1 WHAT YOU NEED TO BALANCE THE UNIT
• A magnehelic gauge capable of measuring 0 to 0.5 inch of water (0 to 125 Pa) and 2 plastic
tubes.
• The balancing chart located on the unit door.
6.2 PRELIMINARY STAGES TO BALANCE THE UNIT
• Seal all the unit ductwork with tape. Close all windows and doors.
• Turn off all exhaust devices such as range hood, dryer and bathroom fans.
• Make sure the integrated balancing dampers are fully open. Turn the thumb screw (A) clockwise to
manually open the dampers. Both are located on the Exhaust air to outdoors port and on Fresh air
to building port.
• Make sure all filters are clean (if it is not the first time you balance the unit).
6.3 BALANCING PROCEDURE
1. Set the unit to high speed.
Make sure that the furnace/air handler blower is ON if the installation is in any way
connected to the ductwork of the cold air return. If not, leave furnace/air handler blower
OFF. If the outdoor temperature is below 0°C/32°F, make sure the unit is not running in
defrost while balancing. (By waiting 10 minutes after plugging the unit in, you are assured
that the unit is not in a defrost cycle.)
2. Place the magnehelic gauge on a level surface and adjust it to zero.
3. Connect tubing from gauge to exhaust air flow pressure taps (see diagram at right).
Be sure to connect the tubes to their appropriate high/low fittings. If the gauge drops below
zero, reverse the tubing connections.
NOTE: It is suggested to start with the exhaust air flow reading because the exhaust
has typically more restriction than the fresh air, especially in cases of fully ducted
installations or source point ventilation. Place the magnehelic gauge upright and level. Record equivalent air flow of the
reading according to the balancing chart.
4. Move tubing to fresh air flow pressure taps (see diagram). Adjust the fresh air balancing damper until the fresh air flow is
approximately the same as the exhaust air flow. If fresh air flow is less than exhaust air flow, then go back and adjust the exhaust
balancing damper to equal the fresh air flow.
5. Secure both dampers thumb screw in place with tape.
6. Write the required air flow information on a label and stick it near the unit for future reference (date, maximum speed air flows,
your name, phone number and business address).
NOTE: The unit is considered balanced even if there is a difference of ±10 cfm (or ± 5 l/s or 17 m³/h) between the two air flows.
VP0009
V
J003
2
A
Port with integrated balancing
damper - Top view
VP0015
1 12 12 11
1 12 12 11
3 13 33 23
1 12 12 11
1 12 12 11
3 13 33 23
BALANCING
CHART
EXHAUST
AIR FLOW
FRESH
AIR FLOW

15
7. CONNECTING THE DRAIN (HRV UNITS ONLY)
VD0181
A
From the inner side of the unit door, using
the provided drain tube, punch out both drain
holes (A). VO0091
In order to keep the drain pan intact, hand
tighten the 2 plastic drain fittings to the unit
door using the gaskets and nuts as shown.
VO0092
Cut 2 sections of plastic tubing, about 12” long
and attach them to each drain fitting. Join the
2 short sections to the “T” junction and main
tube as shown.
VO0093
Make a water trap loop in the tube to prevent
the unit from drawing unpleasant odors from
the drain source. Make sure this loop is
situated BELOW the “T” as shown. This will
prevent water from being drawn back up into
the unit in case of negative pressure. Run the
tube to the floor drain or to an alternative drain
pipe or pail. Be sure there is a slight slope for
the run-off.
VD0231A
± 1”
If using a pail to collect water, locate the tube
end approximately 1” from the top of the pail in
order to prevent water from being drawn back
up into the unit.
TIE-WRAP
TODRAIN

16
8. SERVICE PARTS
REPLACEMENT PARTS AND REPAIR
In order to ensure your ventilation unit remains in good working condition, you must use Venmar Ventilation ULC genuine replacement
parts only. The Venmar Ventilation ULC genuine replacement parts are specially designed for each unit and are manufactured to
comply with all the applicable certification standards and maintain a high standard of safety. Any third party replacement part used may
cause serious damage and drastically reduce the performance level of your unit, which will result in premature failing. Also, Venmar
Ventilation ULC recommends to contact a certified service depot for all replacement parts and repairs.
NO.DESCRIPTION PART NO.41500 HRV
SIDE PORTS
41502 HRV
TOP PORTS
41504 ERV
SIDE PORTS
41506 ERV
TOP PORTS
1OVAL PORT (FITS 5” DIAMETER DUCTS) 16040 1111
2DOOR LATCH WITH SCREWS 16035 2222
3OVAL PORT WITH INTEGRATED BALANCING DAMPER 16041 2222
4MOTOR & WHEEL ASSEMBLY (5 µF MOTOR
CAPACITOR AND INLET RING INCLUDED)183012222
5CAPACITOR 5 µF (QTY.: 2) 16042 1111
6CAPACITOR 18µF 611271111
7E
LECTRONIC BOARD 16038 1111
8ERVFOAM FILTERS (QTY.: 2) 16031 N/A N/A 1 1
9ERVCORE (WITH 2 FILTERS) 16033 N/A N/A 1 1
10 DRAIN CONNECTOR KIT 03203 1 1 N/A N/A
11 DOOR ASSEMBLY 16094 1111
12 HRV CORE (WITH 2 FILTERS) 18300 1 1 N/A N/A
13 HRV FOAM FILTERS (QTY.: 2) 16032 1 1 N/A N/A
14 MOTORIZED DAMPER PORT ASSEMBLY 16029 1111
15* ES TRANSFORMER 18302 1111
* NOT SHOWN.
VL0053
4
1
2
3
8
9
4
567
13
12
11
14
3
10

17
9. TROUBLESHOOTING
If the unit does not work properly, reset the unit by unplugging it for one minute and then replug it. If it still not working properly,
refer to table below.
If the integrated control LED of the unit is flashing, this means the unit sensors detected a problem. See the table below to know where
the problem occurs on the unit.
LED SIGNAL ERROR TYPE ACTION UNIT STATUS
LED flashes GREEN Thermistor error Replace the entire port assembly
(fresh air from outdoors port)
Unit works but will defrost
frequently
LED flashes AMBER Damper error Go to point 5 Unit does not work
LED flashes RED • The door is open and
the unit is not unplugged
• Exhaust motor error
• Close the door and press once on the
integrated control push button to reset the unit
• Go to 8 B, C, D, or E
Unit does not work
• Unplug the unit. Disconnect
the main control and the
auxiliary control(s) (if need
be). Jump Gand Bterminals.
Plug the unit back and wait about 10 seconds. If the motors
run on high speed and the damper opens, the circuit board
is not defective.
• Check if fuse F1 (located on the PCB) is blown. In that case,
replace fuse F1 as per product nameplate.
NO C NC I OC OL Y R G B
VE0097
PROBLEMS POSSIBLE CAUSES YOU SOULD TRY THIS
1
The error code E1 is
displayed on Altitude or
Deco-Touch wall control
screen.
• The wires may be in reverse position.
• The wires may be broken.
• The wires may have a bad
connection.
• Ensure that the color coded wires have been connected to
their appropriate places.
• Inspect every wire and replace any that is damaged.
• Ensure the wires are correctly connected.
2
There is no outdoor
temperature displayed
on Altitude wall control
screen __.
• The unit thermistor is defective (the
integrated control LED of the unit
must flash GREEN).
NOTE: At its very start-up or after a power failure, it takes
some minutes before the outdoor temperature appears
on screen. The delay duration depends on which
operation mode the wall control is set. The shortest
delay is obtained when the wall control is set on MIN
or MAX in VENT Mode.
• Replace the unit thermistor.
3
Altitude or Deco-Touch
wall control screen
alternates between
normal display and E3.
• The Altitude or Deco-Touch wall
control may be defective.
• Replace the Altitude or Deco-Touch wall control.
4
Unit does not work. • The circuit board may be defective.
• The fuse may be defective.
5
The damper actuator
does not work.
• The damper actuator or the
integrated damper mechanism may
be defective.
• The circuit board may be defective.
• Unplug the unit. Disconnect the main control and the
auxiliary control(s) (if need be). Wait 10 seconds and plug
the unit back. Check if the damper opens. If not, use a
multimeter and check for 24 VAC on J12-1 and J12-2 (on
circuit board). If there is 24 VAC, replace the entire damper
assembly.
NOTE: It is normal to experience a small delay (7-8 seconds)
before detecting the 24 VAC signal at starting-up.
This signal will stay during 17-18 seconds before
disappearing.
• If there is no 24 VAC, replace the circuit board.
6
The wall control does not
work.
• The wires may be in reverse position.
• The wires may be broken.
• The wire in the wall OR
the wall control may be defective.
• Ensure that the color coded wires have been connected to
their appropriate places.
• Inspect every wire and replace any that are damaged.
• Remove the wall control and test it right beside the unit
using another shorter wire. If the wall control works there,
change the wire. If it does not, change the wall control.

18
9. TROUBLESHOOTING (CONT'D)
PROBLEMS POSSIBLE CAUSES YOU SOULD TRY THIS
7
The Dehumidistat
does not work OR the
20-minute push button or
20/40/60 minute
push-button timer does
not work OR its indicator
light does not stay on.
• The wires may be in reverse postion.
• The Dehumidistat or push button
may be defective.
8
A.The supply motor does
not work, but exhaust
motor works on both
high and low speeds.
B.The integrated control
LED flashes RED.
C.The integrated control
LED flashes RED;
exhaust motor does not
work on both high and
low speeds.
D.The integrated control
LED flashes RED;
exhaust motor does not
work on low speed but
works on high speed.
E.The integrated control
LED flashes RED;
exhaust motor does not
work on high speed but
works on low speed.
• The supply motor may be defective.
• The supply motor capacitor or the
PCB may be defective.
• The door is open and the unit is not
unplugged.
• The exhaust motor may be defective.
• The exhaust motor capacitor may be
defective.
• The transformer or the PCB may be
defective.
• The 18 µF low speed capacitor wires
may have a loose connection.
• The 18 µF low speed capacitor or
the PCB may be defective.
• The connection between BLUE wire
from J9 connector to BLUE wire from
transformer may be loose.
• The transformer or the PCB may be
defective.
• Plug supply motor to J5 connector and exhaust motor to
J4 connector. If the integrated control LED flashes RED,
the supply motor is defective. If exhaust motor works, plug
back supply motor to J4 connector and exhaust motor to J5
connector, then check for supply motor capacitor validity.
• Plug supply motor capacitor to J7 connector and exhaust
motor capacitor to J6 connector. If the integrated control
LED flashes RED, the supply motor capacitor is defective. If
there is no change, the PCB is defective.
• Put a magnet over the door switch or close the door and
press once on the integrated control push button to reset the
unit. Check both high and low speeds using integrated push
button.
• Plug exhaust motor to J4 connector and supply motor to J5
connector. If supply motor works but exhaust motor does
not, exhaust motor is defective. If exhaust motor works, plug
back supply motor to J4 connector and exhaust motor to J5
connector, then check for exhaust motor capacitor validity.
• Plug exhaust motor capacitor to J6 connector and exhaust
motor capacitor to J7 connector. If exhaust motor works
but supply motor does not, the exhaust motor capacitor is
defective. If there is no change, check validity of transformer
or PCB.
• Move JU1 jumper from pins 2 and 3 to pins 1 and 2. Set
the unit on high speed (press 2 times on integrated push
button, the LED will light GREEN). If exhaust motor works,
the transformer is defective. If it still does not, change the
PCB.
• Check both low speed capacitor wires connections.
• Plug the RED wire from J9 connector to RED wire from
transformer. If it works, the 18 µF low speed capacitor is
defective. If it is not working, the PCB is defective.
• Check BLUE wires connection.
• Move JU1 jumper from pins 2 and 3 to pins 1 and 2. Set
the unit on high speed (press 2 times on integrated push
button, the LED will light GREEN). If exhaust motor works,
the transformer is defective. If it still does not, change the
PCB.
9
The defrost cycle does
not work (the fresh air
duct is frozen) OR the
fresh air distributed is very
cold.
• Ice deposits may be hindering the
damper operation.
• The damper rod or the port damper
itself may be broken.
• The damper actuator or circuit board
may be defective.
• Remove the ice.
• Inspect these parts and replace if necessary.
• See point 5.
10 The integrated control
push button does not work.
• The 30-second boot sequence is not
completed.
• See Section 3.1.1 Boot Sequence.
• Ensure that the color coded wires have been connected to
their appropriate places.
• Jump the OL and OC
terminals. If the unit switch
to high speed, remove the
Dehumidistat or push button
and test it right beside the unit using another shorter wire.
If it works here, change the wire. If it doesn’t, change the
Dehumidistat or the push button.
NO C NC I OC OL Y R G B
VE0098