Venmar HRV CONSTRUCTO 1.5ES User guide

HRV CONSTRUCTO 1.5ES*
(PA RT NOS 46110 AND 1601702)
HRV CONSTRUCTO 2.0ES*
(PA RT NO. 47110)
ERV CONSTRUCTO 2.0ES
(PA RT NO. 47115)
HRV SOLO 1.5ES*
(PA RT NOS 46720 AND 46725)
HRV SOLO 2.0ES*
(PA RT NO. 47720)
* 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.
INSTALLER MANUAL
READ AND SAVE THESE INSTRUCTIONS
RESIDENTIAL USE ONLY
20503 REV. 04
VB0175 VB0176
VB0170
IMPORTANT INFORMATION FOR THIS UNIT ABOUT DRAIN
INSTALLATION IN COLD CLIMATES ON PA G E 12, SECTION 3.8.

ABOUT THIS MANUAL
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:
WARNING
Identifies an instruction which, if not followed, might cause serious personal injuries including possibility of death.
CAUTION
Denotes an instruction which, if not followed, may severely damage the unit and/or its components.
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.
ABOUT THESE UNITS
LIMITATION
For residential (domestic) installation only. These units must be installed in accordance with all national and local regulations, building
codes and safety codes.
WARNING
!
!
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 this 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:
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 this unit, 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 expenses.
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 outside – 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).
2
Units Optional Main Controls Optional Auxiliary Controls
Constructo Deco-Touch, Lite-Touch Constructo, Constructo Dehumidistat, 20-min. lighted push-button,
60-min. mechanical timer
Solo Altitude, Deco-Touch, Lite-Touch Constructo,
Simple-Touch Constructo, Constructo
Dehumidistat, 20/40/60-min. lighted push-button,
60-min. mechanical timer

TABLE OF CONTENTS
3
1. TECHNICAL DATA ..................................................................................................................................... 4-5
1.1 AIR DISTRIBUTION (NORMAL OPERATION) ............................................................................................................................ 4
1.2 AIR DISTRIBUTION (DEFROST MODE) .................................................................................................................................. 4
1.3 DEFROST CYCLES TABLES................................................................................................................................................. 4
1.4 DIMENSIONS.................................................................................................................................................................. 5
1.41 HRV CONSTRUCTO 1.5ES, HRV CONSTRUCTO 2.0ES, HRV SOLO 1.5ES AND HRV SOLO 2.0ES .................................................. 5
1.4.2 ERV CONSTRUCTO 2.0ES ....................................................................................................................................................... 5
1.5 SPECIFICATIONS ............................................................................................................................................................. 5
2. TYPICAL INSTALLATIONS ........................................................................................................................... 6
2.1 FULLY DUCTED SYSTEM ................................................................................................................................................... 6
2.2 EXHAUST DUCTED SYSTEM (SOURCE POINT VENTILATION) ...................................................................................................... 6
2.3 SIMPLIFIED (VOLUME VENTILATION) .................................................................................................................................... 6
3. INSTALLATION .........................................................................................................................................7-13
3.1 INSPECT THE CONTENT OF THE BOX ................................................................................................................................... 7
3.2 LOCATING AND MOUNTING THE UNIT .................................................................................................................................. 7
3.3 PLANNING OF THE DUCTWORK .......................................................................................................................................... 7
3.4 CALCULATING THE DUCT SIZE............................................................................................................................................ 8
3.4.1 EXAMPLE OF CALCULATION ......................................................................................................................................................... 8
3.4.2 EXAMPLE OF ADESIGN FOR AFULLY DUCTED SYSTEM ...................................................................................................................... 8
3.5 INSTALLING THE DUCTWORK AND THE REGISTERS ............................................................................................................. 9-10
3.5.1 FULLY DUCTED SYSTEM .............................................................................................................................................................. 9
3.5.2 EXHAUST DUCTED SYSTEM ......................................................................................................................................................... 9
3.5.3 SIMPLIFIED INSTALLATION ..........................................................................................................................................................10
3.6 CONNECTING THE DUCTS TO THE UNIT ............................................................................................................................. 11
3.7 INSTALLING THE EXTERIOR HOODS ................................................................................................................................... 12
3.8 CONNECTING THE DRAIN .......................................................................................................................................... 12-13
3.8.1 HRV UNITS ...........................................................................................................................................................................12
3.8.2 ERV UNIT .............................................................................................................................................................................13
4. CONTROLS ............................................................................................................................................13-15
4.1 INTEGRATED CONTROL .................................................................................................................................................. 13
4.1.1 BOOT SEQUENCE ....................................................................................................................................................................13
4.1.2 SETTING EXTENDED DEFROST ....................................................................................................................................................13
4.2 ELECTRICAL CONNECTION TO OPTIONAL WALL CONTROLS ................................................................................................ 14-15
4.2.1 ELECTRICAL CONNECTION TO ALTITUDE MAIN WALL CONTROL ............................................................................................................14
4.2.2 ELECTRICAL CONNECTION TO DECO-TOUCH MAIN WALL CONTROL......................................................................................................14
4.2.3 ELECTRICAL CONNECTION TO LITE-TOUCH CONSTRUCTO OR SIMPLE-TOUCH CONSTRUCTO MAIN WALL CONTROL.......................................15
4.2.4 ELECTRICAL CONNECTION TO CONSTRUCTO MAIN WALL CONTROL .....................................................................................................15
4.2.5 ELECTRICAL CONNECTION TO OPTIONAL AUXILIARY WALL CONTROLS ...................................................................................................15
5. ELECTRIC CONNECTION TO THE FURNACE ..........................................................................................15
6. WIRING DIAGRAM.......................................................................................................................................16
7. BALANCING THE UNIT ...............................................................................................................................17
7.1 WHAT YO U NEED TO BALANCE THE UNIT ......................................................................................................................... 17
7.2 PRELIMINARY STAGES TO BALANCE THE UNIT ................................................................................................................... 17
7.3 BALANCING PROCEDURE ............................................................................................................................................. 17
8. SERVICE PARTS .........................................................................................................................................18
9. TROUBLESHOOTING ........................................................................................................................... 19-20

1. TECHNICAL DATA
1.1 AIR DISTRIBUTION (NORMAL OPERATION)
4
1.3 DEFROST CYCLES TABLES
HRV CONSTRUCTO 1.5ES AND SOLO 1.5ES UNITS
OUTSIDE TEMPERATURE DEFROST CYCLES (MINUTES)EXTENDED DEFROST CYCLES
CELCIUS (°C) FAHRENHEIT (°F) DEFROSTING OPERATION TIME BETWEEN EACH
DEFROST CYCLES DEFROSTING OPERATION TIME BETWEEN EACH DEFROST CYCLES
-5 23 7 50 10 30
-15 5 7 25 10 20
-27 -17 10 20 10 15
1.2 AIR DISTRIBUTION (DEFROST MODE)
VF0052
VF0053
ERV CONSTRUCTO 1.5 ES UNIT
OUTSIDE TEMPERATURE DEFROST CYCLES (MINUTES)EXTENDED DEFROST CYCLES
CELCIUS (°C) FAHRENHEIT (°F) DEFROSTING OPERATION TIME BETWEEN EACH
DEFROST CYCLES DEFROSTING OPERATION TIME BETWEEN EACH DEFROST CYCLES
-5 23 10 60 10 30
-15 5 10 30 10 20
-27 -17 10 20 10 15
HRV CONSTRUCTO 2.0ES AND SOLO 2.0ES UNITS
OUTSIDE TEMPERATURE DEFROST CYCLES (MINUTES)EXTENDED DEFROST CYCLES
CELCIUS (°C) FAHRENHEIT (°F) DEFROSTING OPERATION TIME BETWEEN EACH
DEFROST CYCLES DEFROSTING OPERATION TIME BETWEEN EACH DEFROST CYCLES
-5 23 6 50 10 30
-15 5 6 25 10 20
-27 -17 10 20 10 15
NOTE: The Constructo and Solo Performance Charts are listed on the specification sheets of these units.
Visit our website at www.venmar.ca to access those documents.

1. TECHNICAL DATA (CONT’D)
1.4 DIMENSIONS
5
1.5 SPECIFICATIONS
MODEL HRV CONSTRUCTO 1.5ES HRV CONSTRUCTO 2.0ES ERV CONSTRUCTO 2.0ES HRV SOLO 1.5ES HRV SOLO 2.0ES
WEIGHT 65 LB (29.5 kg) 65 LB (29.5 kg) 76 (34.5 KG) 65 LB (29.5 kg) 65 LB (29.5 kg)
PORT
DIAMETER 6˝ (152 MM) 6˝ (152 MM) 6˝ (152 MM) 6˝ (152 MM) 6˝ (152 MM)
DRAIN
DIAMETER 1/2˝ (12 MM) 1/2˝ (12 MM) 1/2˝ (12 MM) 1/2˝ (12 MM) 1/2˝ (12 MM)
INSTALLATION CHAINS AND SPRINGS (PROVIDED WITH THE UNIT)
MOTOR
SPEED HIGH AND LOW SPEED FACTORY SET (OPTIONAL INCREASED LOW SPEED)
ELECTRICAL
SUPPLY 120 V, 60 HZ120 V, 60 HZ120 V, 60 HZ120 V, 60 HZ120 V, 60 HZ
POWER
CONSUMPTION 160 WATTS 195 WATTS 200 WATTS 160 WATTS 195 WATTS
17”
(432 mm)
17¼” (438 mm)
6”
(152 mm)
Power Cord
36” (914 mm)
Door
30¼” (768 mm)
35” (891 mm)
Terminal
Block
Location
Blower
Assembly
Motorized
Damper
Hooks Location
for Hanging Chains
Heat
Recovery
Core
VK0077A
17”
(432 mm)
17¼” (438 mm)
6”
(152 mm)
Door
34” (864 mm)
39” (991 mm)
Blower
Assembly
Hooks Location
for Hanging Chains
Energy
Recovery
Core
VK0078A
Terminal
Block
Location
Motorized
Damper
Power Cord
36” (914 mm)
1.4.1 HRV CONSTRUCTO 1.5ES, HRV CONSTRUCTO 2.0ES, HRV SOLO 1.5ES AND HRV SOLO 2.0ES
1.4.2 ERV CONSTRUCTO 2.0ES

(Primarily for homes with radiant hot water or electric baseboard heating.
See illustration at right.)
Moist, stale air is exhausted from the high humidity areas in the home, such as
bathrooms, kitchen and laundry room.
Fresh air is supplied to bedrooms and principal living areas.
If required, bathroom fans and a range hood may be used to better exhaust
stale air.
Homes with more than one level require at least one exhaust register at the
highest level.
2. TYPICAL INSTALLATIONS
2.1 FULLY DUCTED SYSTEM
6
NOTE: Installation may vary according to the model number and the position; normal or reverse (Solo units only) in wich the unit is installed.
There are three common installation methods.
VH0077
(For homes with forced air heating. See illustration at right.)
Moist, stale air is exhausted from the high humidity areas in the home, such as
bathrooms, kitchen and laundry room. Fresh air is supplied to the cold air return
or the supply duct of the furnace. If required, bathroom fans and a range hood
may be used to better exhaust stale air.
Homes with more than one level require at least one exhaust register at the
highest level.
NOTE: For this type of installation, it is not essential that the furnace blower
runs when the unit is in operation, but we recommend it.
2.2 EXHAUST DUCTED SYSTEM (SOURCE POINT VENTILATION)
VH0078
(For homes with forced air heating. See illustration at right.)
Fresh air and exhaust air flow through the furnace ducts, which simplifies the
installation.
The use of bathroom fans and a range hood is suggested to exhaust stale air.
NOTE: For this type of installation, the furnace blower must be running
when the unit is in operation.
2.3 SIMPLIFIED (VOLUME VENTILATION)
VH0079
See 3.5.1 for details
See 3.5.2 for details
See 3.5.3 for details

3. INSTALLATION
3.1 INSPECT THE CONTENT OF THE BOX
7
• Inspect the exterior of the unit for shipping damage. Ensure that there is no damage to the door, door latches, door hinges, dampers,
duct collars, cabinet, etc.
• Inspect the interior of the unit for damage. Ensure that the fan motor assembly, recovery module, insulation, dampers, condensation tray
are all intact.
• If the unit was damaged during shipping, contact your local distributor. (Claim must be made within 24 hours after delivery.)
WARNING
When applicable local regulation comprises 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 expenses.
!
WARNING
When performing installation, servicing or cleaning the unit, it is recommended to wear safety glasses and gloves.
!
3.2 LOCATING AND MOUNTING THE UNIT
NOTE: Please note that Solo units can be installed in either the normal or reverse (upside down) position.
Choose an appropriate location for the unit:
• Within an area of the house where the ambient temperature is kept between 10°C (50°F) and 40°C (104°F)
• Away from living areas (dining room, living room, bedroom), if possible
• So as to provide easy access to the interior cabinet for every three months and annual maintenance, and
to the control panel on the side of the unit;
• Close to an exterior wall, so as to limit the length of the insulated flexible duct to and from the unit
• Close to a drain. If no drain is close by, use a pail to collect run-off
• Away from hot chimneys, electrical panel and other fire hazards
• Allow for a power source (standard outlet)
Hang the unit with the 4 chains and springs provided (see illustrations at right).
VD0037
VD0279
3.3 PLANNING OF THE DUCTWORK
a) Follow the instructions in Section 3.4 (next page) to determine the appropriate duct diameters for your system.
b) Keep it simple. Plan for a minimum number of bends and joints. Keep the length of insulated duct to a minimum.
c) Do not use wall cavities as ducts. Do not use branch lines smaller than 4” Ø (102 mm Ø).
d) 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 recovery module. Use sheet metal for the kitchen exhaust duct.
e) Be sure to plan for at least one exhaust register on the highest lived-in level of the house if it has 2 floors or more.
CAUTION
For Solo units only, when installed in reverse postion (upside down) in a cold region where outside temperature
could drop below -20C (-4F) for more than 5 days in a row, the unit must always be set in extended defrost. See
Section 4.1.2 Setting Extended Defrost.
NOTE: Prior to install the unit, remove its shipping bracket by unscrewing its wing nut and loosing
its both retaining screws.
VD0283
SHIPPING BRACKET
RETAINING SCREWS
WING NUT

Use the table below to ensure that the ducts you intend to install will be carrying air flows at or under the recommended values.
Avoid installing ducts that will have to carry air flows near the maximum values and never install a duct if its air flow exceeds
the maximum value.
3. INSTALLATION (CONT’D)
3.4 CALCULATING THE DUCT SIZE
8
VI0003
PROBLEM:My installation requires two exhaust registers (one for the kitchen, one for the bathroom).
I will connect these registers to a main duct which will connect to the unit (high speed performance
value of 140 cfm). What size of duct should I use for the main exhaust duct and for the two end
branches leading to the registers? (See illustration at right.)
SOLUTION:Simplified method. (For a more detailed method of calculating duct size refer to the ASHRAE
or HRAI HANDBOOK).
Main duct: Table above indicates a 6” Ø duct: Recommended air flow: 120 cfm; maximum air flow:
180 cfm. The high speed air flow of 140 cfm is close enough to the recommended value (120) and
far enough away from the maximum value (180). Therefore a 6” Ø duct or larger is an appropriate
choice for the main exhaust duct.
End branches: Each end branch will have to transport an air flow of 70 cfm (140 divided by 2).
Table above indicates a 5” Ø duct: Recommended air flow: 75 cfm; maximum air flow: 110 cfm. The
high speed air flow of 70 cfm is close enough to the recommended value (75) and far enough away
from the maximum value (110). Therefore a 5” Ø duct or larger is an appropriate choice for the 2
end branches.
NOTE: A 4” Ø duct would have been too small because the maximum acceptable value for a 4” Ø
duct is 60 cfm.
3.4.1 EXAMPLE OF CALCULATION
VI0004
END
BRANCHES
5˝ø
70 CFM
MAIN BRANCH
6˝ø 140 CFM
DUCT
DIAMETER RECOMMENDED AIR FLOW MAXIMUM AIR FLOW
4˝ (102 MM) 40 CFM 19 L/S68 M/H60 CFM 28 L/S102 M/H
5˝ (127 MM) 75 CFM 35 L/S127 M/H110 CFM 52 L/S187 M/H
6˝ (152 MM) 120 CFM 57 L/S204 M/H180 CFM 85 L/S306 M/H
7˝ (178 MM) 185 CFM 87L/S314 M/H270 CFM 127 L/S459 M/H
8˝ (203 MM) 260 CFM 123 L/S442 M/H380 CFM 179 L/S645 M/H
NOTE: Examples 3.4.1 and 3.4.2 use imperial measures.
The same calculation applies to metric measures.
3.4.2 EXAMPLE OF ADESIGN FOR AFULLY DICTED SYSTEM FOR AUNIT HAVING AHIGH SPEED PERFORMANCE OF 222 CFM
5˝ø
65 CFM
5˝ø
64 CFM 4˝ø
42 CFM 4˝ø
42 CFM
4˝ø
42 CFM
6˝ø
96 CFM
6˝ø
84 CFM
6˝ø
138 CFM
7˝ø
222 CFM
7˝ø
222 CFM
6˝ø
93 CFM
6˝ø
129 CFM
5˝
5˝
6˝
6˝ 6˝
6˝
7˝ 7˝
4˝
4˝ 4˝
4˝
4˝

3. INSTALLATION (CONT’D)
3.5 INSTALLING THE DUCTWORK AND THE REGISTERS
9
STALE AIR EXHAUST DUCTWORK:
• Install registers in areas where contaminants are produced: Kitchen, bathrooms, laundry room, etc.
• Install registers 6 to 12 inches (152 to 305 mm) from the ceiling on an interior wall OR install them in the ceiling.
• Install the kitchen register at least 4 feet (1.2 m) from the range.
• If possible, measure the velocity of the air flowing through the registers. If the velocity is higher than 400 ft/min. (122 m/min), then
the register type is too small. Replace with a larger one.
FRESH AIR DISTRIBUTION DUCTWORK:
• Install registers in bedrooms, dining room, living room and basement.
• Install registers either in the ceiling or high on the walls with air flow directed towards the ceiling.
(The cooler air will then cross the upper part of the room, and mix with room air before descending to occupant level.)
• If a register must be floor installed, direct the air flow up the wall.
WARNING
Never install a stale air exhaust register in a room where there is a combustion device, such as a gas furnace, a
gas water heater or a fireplace.
!
CAUTION
The ductwork is intended to be installed in compliance with all local and national codes that are applicable.
3.5.1 FULLY DUCTED SYSTEM (AS ILLUSTRATED IN SECTION 2.1)
STALE AIR EXHAUST DUCTWORK:
Same as for Fully Ducted System, described on point 3.5.1 above)
FRESH AIR DISTRIBUTION:
3.5.2 EXHAUST DUCTED SYSTEM (AS ILLUSTRATED IN SECTION 2.2)
There are two methods for connecting the unit to the furnace:
METHOD 1: SUPPLY SIDE CONNECTION
• Cut an opening into the furnace supply duct at least 18 inches (0.5 m)
from the furnace.
• Connect this opening to the fresh air distribution port of the HRV/ERV
(use metal duct, see illustration at right).
• Make sure that the HRV/ERV duct forms an elbow inside the furnace ductwork.
• If desired, interlock (synchronize) the furnace blower operation with
the HRV/ERV operation. (See Section 5).
WARNING
When performing duct connection to the furnace, installation must be done in accordance with all applicable
codes and standards. Please refer to your local building code.
!
CAUTION
When performing duct connection to the furnace supply duct, this duct must be sized to support the additional
airflow produced by the ERV/HRV. Also, use a metal duct. It is recommended that the ERV/HRV is running when the
furnace is in operation in order to prevent backdrafting inside ERV/HRV.
VJ0084
METAL DUCT
MINIMUM
18’’ (0.5 M)
METHOD 2: RETURN SIDE CONNECTION
• Cut an opening into the furnace return duct not less than 10 feet (3.1 m)
from the furnace (A+B).
• Connect this opening to the fresh air distribution port of the HRV/ERV
(see illustration at right).
NOTE: For Method 2, it is not essential that the furnace blower runs when the unit is
in operation, but we recommend it. If desired, synchronize the furnace blower
operation with the HRV/ERV operation. (See Section 5).
B
A
VJ0085 A+B= NOT LESS
THAN 10’ (3.1 M)

3. INSTALLATION (CONT’D)
3.5 INSTALLING THE DUCTWORK AND THE REGISTERS (CONT’D)
10
CAUTION
When performing duct connection to the furnace ducts (Method 1), these ducts must be sized to support the
additional airflow produced by the ERV/HRV. Also, the supply duct must be a metal duct. It is recommended that
the ERV/HRV is running when the furnace is in operation in order to prevent backdrafting inside ERV/HRV.
3.5.3 SIMPLIFIED INSTALLATION (AS ILLUSTRATED IN SECTION 2.3)
There are two methods (illustrated below) for connecting the unit to the furnace ducts:
METHOD 1: RETURN-SUPPLY METHOD 2: RETURN-RETURN
WARNING
When performing duct connection to the furnace, installation must be done in accordance with all applicable
codes and standards. Please refer to your local building code.
!
CAUTION
If using Method 2, make sure the furnace blower operation is synchronized with the unit operation! See Section 5.
MINIMUM
3’ (0.9 M)
STALE AIR INTAKE:
• Cut an opening into the furnace return duct not less than 10 feet (3.1 m) from the furnace.
• Connect this opening to the stale air intake port of the HRV/ERV (as shown above).
FRESH AIR DISTRIBUTION:
Same instructions as for Method 1 or Method 2, section 3.5.2 in previous page)
A+B= NOT LESS
THAN 10’ (3.1 M)
B
A
VJ0086
METAL DUCT
MINIMUM
18’’ (0.5 M)
A+B= NOT LESS
THAN 10’ (3.1 M)
B
A
VJ0087
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
duct.
NOTE: For Method 1, it is not essential to synchronize the furnace blower operation with the HRV/ERV operation, but we
recommend it.

3. INSTALLATION (CONT’D)
3.6 CONNECTING THE DUCTS TO THE UNIT
11
CAUTION
If ducts have to go through an unconditioned space (e.g.: attic), always use insulated ducts.
CAUTION
Make sure the vapor barrier on the insulated ducts does not tear during installation to avoid condensation within
the ducts.
INSULATED FLEXIBLE DUCTS
Use the following procedure for connecting the insulated flexible duct to the ports on the unit (exhaust to outside and fresh air from
outside).
Pull back the insulation to expose the flexible duct and place it over inner port ring.
Install good quality aluminum duct tape on flexible duct to prevent potential water leakage from duct.
Attach the flexible duct to the port using tie wrap.
Pull the insulation over the joint and tuck it between the inner and outer rings of the double collar.
Pull down the vapor barrier (shaded part in illustrations below) over the outer ring to cover it completely. Fasten in place the vapor
barrier using the port strap (included in unit parts bag). To do so, insert one collar pin through vapor barrier and first strap hole,
then insert the other collar pin through vapor barrier and center strap hole and close the loop by inserting the first collar pin in the
last strap hole.
CAUTION
Do not use screws to connect rigid ducts to the ports.
RIGID DUCTS
To prevent potential water leakage from ducts, use good quality aluminum duct tape to connect the rigid ducts to the ports.
The flexible duct connected to the Exhaust to outside port
should drop 1" below the port before going back up.
Also, make sure that both balancing dampers are left in a
fully open position before connecting the ducts to these
ports (Fresh air to building port and Exhaust air from
building port as shown in illustration at right).
VJ0091
12345
VJ0093A
± 1"
COLLAR PIN
COLLAR PIN

3. INSTALLATION (CONT’D)
3.7 INSTALLING THE EXTERIOR HOODS
12
Choose an appropriate location for installing the exterior hoods:
• At a minimum distance of 6 feet (1.8 m) between the hoods to
avoid cross-contamination
• At a minimum distance of 18 inches (457 mm) from the ground
VD0028
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
WARNING
!
Refer to illustration at right for connecting the insulated duct to the
hoods. An “Anti-Gust Intake Hood” should be installed in regions
where a lot of snow is expected to fall.
EXHAUST
HOOD
INTAKE
HOOD
18”
(457 MM)
18”
(457 MM)
6” ø
(152 MM)
6’
(1.8 M)6’
(1.8 M)
18”
(457 MM)
OPTIONAL
DUCT LOCATION
TAPE AND DUCT TIE
CAULKING
3.8 CONNECTING THE DRAIN
CAUTION
A drain tubing (included) must be installed for all HRV units. For ERV units, it is not required, however, it is
recommended for climates where the outside temperature typically remains below -25°C (-13°F), (over a 24-hour
period) for several days in a row, combined with an indoor humidity of 40% or higher.
3.8.1 HRV UNITS
Cut 2 sections of the plastic tube, about
12” (305 mm) long, and attach them to each
inner drain fitting, located under the unit.
Join both short sections to the “T” junction
and main tube as shown.
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 located OVER the “T” as shown. Run
the tube to the floor drain or to an alternative
drain pipe or pail.
IMPORTANT: 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.
SOLO UNITS ONLY
Insert both drain plugs (included in parts
bag) in alternate drain fittings located on top
of the unit.
VO0231A
8" MAX.
± 1”
10" MIN.
VD0282
VO0232A
± 12"
(± 305 mm)
± 12"
(± 305 mm)

4. CONTROLS
4.1 INTEGRATED CONTROL
13
All units are equipped with an integrated control, located in front of the electrical compartment. Use the
push button (1) to control the unit. The LED (2) will then show on which mode the unit is in.
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.
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 pages 19 and 20 for further details.
4.1.1 BOOT SEQUENCE
The unit boot sequence is similar to a personnal 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 (unit set in normal defrost) or AMBER (unit set in extended defrost) 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.
4.1.2 SETTING EXTENDED DEFROST
The unit is factory set to normal defrost. In cold region, it may be necessary to setup extended defrost. During
the first 5 seconds of booting sequence, while the integrated control LED is GREEN, press on push button until
the LED turns AMBER (about 3 seconds).
Refer to table below to see how to operate the unit using its integrated control.
PRESS ON PUSH BUTTON LED COLOR RESULTS
ONCE AMBER UNIT IS ON LOW SPEED
TWICE GREEN UNIT IS ON HIGH SPEED
THREE TIMES NOLIGHT UNIT IS OFF VD0278 1
2
VD0281
CAUTION
For Solo units only, when installed in reverse postion (upside down) in a cold region where outside temperature
could drop below -20C (-4F) for more than 5 days in a row, the unit must always be set in extended defrost.
3.8.2 ERV UNIT
Make a water trap loop in the tube to prevent the unit from drawing unpleasant odors from
the drain source. Run the tube to the floor drain or to an alternative drain pipe or pail.
IMPORTANT: 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.
Insert a drain plug (included in parts bag) in
alternate drain fitting located on top of the
unit.
Furthermore, if the drain will not be used,
insert a second drain plug (included in
parts bag) in the drain fitting located
underneath the unit.
VO0243A
± 1"
8" MIN.
8" MAX.
VD0287
3. INSTALLATION (CONT’D)
3.8 CONNECTING THE DRAIN (CONT’D)

4. CONTROLS (CONT’D)
14
4.2 ELECTRICAL CONNECTION TO OPTIONAL WALL CONTROL
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 picture at right, wire Ais
correctly inserted, but not wire B.)
VE0106
AB
4.2.1 ELECTRICALCONNECTION TO
ALTITUDE MAIN WALL CONTROL (EXCLUSIVELY FOR SOLO UNITS)
NO C NC I OC OL Y R G B
VE0175
SMART
SET
MODE
PREF
4.2.2 ELECTRICAL CONNECTION TO
DECO-TOUCH MAIN WALL CONTROL (ALL UNITS)
NO C NC I OC OL Y R G B
VE0250
Once the wall control(s) connections have been made, insert the terminal connector in the electrical
compartment front face.
NOTE: For information about the operation of the wall controls, refer to the user guide.
VD0278
TERMINAL
CONNECTOR
LOCATION
For more convenience, this unit can also be controlled using an optional main wall control.
WARNING
Always disconnect the unit before making any connections. Failure in disconnecting power could result in electrical
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.

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.
4. CONTROLS (CONT’D)
15
4.2.3 ELECTRICAL C ONNECTION TO L ITE-TOUCH C ONSTRUCTO
(ALL UNITS) OR SIMPLE-TOUCH CONSTRUCTO MAIN
WALL CONTROL (EXCLUSIVELY FOR SOLO UNITS)
NO C NC I OC OL Y R G B
BG
OC
MAIN WALL
CO
NTR
O
L
LITE-TOUCH CONSTRUCTO
and
SIMPLE-TOUCH CONSTRUCTO
REAR VIEW
G B
Y
VE0100A
4.2.4 ELECTRICAL CONNECTION TO
CONSTRUCTO MAIN WALL CONTROL (ALL UNITS)
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
4.2 ELECTRICAL CONNECTION TO OPTIONAL WALL CONTROL (CONT’D)
4.2.5 ELECTRICAL CONNECTION TO OPTIONAL AUXILIARY WALL CONTROLS
NO C NC I OC OL Y R G B
PUSH-BUTTON TIMERS
(5 MAXIMUM)
60-MINUTE
CRANK TIMER
DEHUMIDISTAT
VE0256A
5. ELECTRIC CONNECTION TO THE FURNACE
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
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 AFURNACE CONNECTED TO ACOOLING 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
COMPATIBLE OPTIONAL AUXILIARY WALL CONTROLS ACCORDING TO UNIT:
CONSTRUCTO SOLO
DEHUMIDISTAT DEHUMIDISTAT
60-MINUTE CRANK TIMER 60-MINUTE CRANK TIMER
20-MINUTE LIGHTED PUSH-BUTTON SWITCH (5 MAX.) 20/40/60 MINUTE LIGHTED PUSH-BUTTON TIMER (5 MAX.)

16
6. WIRING DIAGRAM
Field wiring
remote control
(see notes 3 & 4)
120 V, 60 Hz W1
J6 J4
ELECTRONIC
ASSEMBLY
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
B
24 V class 2
9.5 V class 2
120V, 60Hz
Neutral
120 V, 60Hz
Line
CPU
K2 K4 K5
J10-2
Line voltage factory wiring Class 2 low voltage factory wiring Class 2 low voltage field wiring
See note 1
120 V
Door interlock switch
(magnetically actuated
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
J4-1 J4-3 J6-2 J6-1
K3
K2
24 V class 2
9.5 V class 2
120 V
J9-1
J9-2
J9-3
J4-2
J9-4
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
nc
Motor
capacitor
Fan
motor
GN
GN
BN
BN
Y
Y
BK W
A2
A2
M3
T1
S1
R1
A1
F1
M1
(optional; see
notes 3 & 4)
VE0257A
COLOR CODE
BK BLACK BL BLUE BN BROWN GY GRAY GN GREEN
Critical characteristic.
reed switch)
JU1
3 2 1
NOTES
1. For continued fire protection. Use specified
UL listed/CSA Certified line fuse.
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.
J10-1
nc nc nc
nc
2
21
1
BK
BK
W
W
C1
2
21
13
3
BK BK
nc
2
21
13
3
4
4
5
5
6
6
ncnc
BN BN
GN
GND
HI
COM
LO
MED
O
O ORANGE RRED W WHITE Y YELLOW nc no connection
GY
R
BL nc
BK
BK
O
GY
R
BN
BN
nc nc
JU1
HM
213
Fan
motor capacitor
COM
HI LOW
MED
HI
LOW
Fan
motor
WARNING
Risk of electric shocks. Before performing any maintenance or servicing, always disconnect the unit from its
power source.
!

17
7.3 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 outside 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 in place with a fastening screw.
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).
7. Install 4 pressure taps plugs (included in parts bag).
NOTES: 1. Use conversion chart provided with the unit to convert magnehelic gauge readings to equivalent cfm values.
2. 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.
7. BALANCING THE UNIT
7.1 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 of the unit.
VP0009
VD0280
7.2 PRELIMINARY STAG E 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.
• Make sure all filters are clean (if it is not the first time the unit is balanced).
VP0022
EXHAUST AIR FLOW
FRESH AIR FLOW

18
8. SERVICE PARTS
ITEM DESCRIPTION
HRV CONSTRUCTO
1.5ES
HRV CONSTRUCTO
2.0ES
ERV CONSTRUCTO
2.0ES HRV SOLO 1.5ES HRV SOLO 2.0ES
46110 1601702 47110 47115 46720 46725 47720
1 Hinge assembly kit 13036 13036 13036 13036 13036 13036 13036
2 Damper supply port assembly 17245 17245 17245 17245 17245 17245 17245
3Damper system actuator
(including no. 4) 17235 17235 17235 17235 17235 17235 17235
4 Thermistor kit 17242 17242 17242 17242 17242 17242 17242
5 Capacitor 7.5 µF 17240 17240 17240 17240 17240 17240 17240
6 Electronic board 60809 60809 60809 60812 60810 60810 60810
7 Transformer 17244 17244 17244 17244 17244 17244 17244
8 Double collar port 60818 60818 60818 60818 60818 60818 60818
9 Blower assembly (including no. 10) 60804 60804 60805 60806 60804 60804 60805
10 Square damper kit 17243 17243 17243 17243 17243 17243 17243
11 Magnet switch 19060 19060 19060 19060 19060 19060 19060
12 Door assembly
(including hinges and latches) 60797 60797 60797 60798 60797 60797 60797
13 Door latches (keeper)
and screws
00887 (2)
00601 (4)
00887 (2)
00601 (4)
00887 (2)
00601 (4)
00887 (2)
00601 (4)
00887 (2)
00601 (4)
00887 (2)
00601 (4)
00887 (2)
00601 (4)
14 Diffuser 60822 60822 60822 – 60822 60822 60822
15 Filter kit 60800 60800 60800 60799 60800 60800 60800
16 Core 60802 60801 60803 16582 60802 60801 60803
17 Door latches
and screws
00886 (2)
00601 (4)
00886 (2)
00601 (4)
00886 (2)
00601 (4)
00886 (2)
00601 (4)
00886 (2)
00601 (4)
00886 (2)
00601 (4)
00886 (2)
00601 (4)
18 Balancing damper 02253 02253 02253 02253 02253 02253 02253
19 Balancing double collar port 02256 02256 02256 02256 02256 02256 02256
* Terminal connector 16416 16416 16416 16416 16416 16416 16416
* Hardware kit 20510 20510 20510 20606 20606 20606 20606
REPLACEMENT PART S AND REPAIRS
In order to ensure your ventilation unit remains in good working condition, you must use Venmar Ventilation Inc. genuine replacement parts only. The Venmar Ventilation Inc.
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 Inc. recommends to contact a certified service depot for all replacement parts and repairs.
* Not shown.
VL0050
1
2
3
4
6
5
7
910 12
13
16
15
17
19
18
8
15
14
11

19
9. TROUBLESHOOTING
If the integrated control LED of the unit is flashing, this means the unit sensors detected a problem. See the list below to know where on
the unit the problem occurs.
LED flashes GREEN (double blink). • Thermistor error. Replace the thermistor kit.
LED flashes AMBER. • Damper error. Go to point 10.
WARNING
A few diagnosis procedures may require the unit to be in operation while proceeding. Open the unit door and
bypass its magnetic switch by putting the door white magnet on it. Be careful with moving and/or live parts.
!
PROBLEMS POSSIBLE CAUSES YOU SHOULD 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.
• The unit is not compatible with
Altitude wall control (Constructo).
• Ensure that the color coded wires have been connected to their appropriate
places.
• Inspect every wire and replace any that are damaged.
• Ensure the wires are correctly connected.
• Refer to unit spec. sheet for control compatibility.
2. There is no outside
temperature displayed
on Altitude wall control
screen .
• Unit is on error and integrated control
LED flashes (GREEN or AMBER).
• The unit thermistor is defective
(integrated control LED flashes
GREEN).
NOTE: At its very start-up or after a power failure, it takes some minutes before
the outside 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.
• Check if unit is operating.
• Replace the unit thermistor.
3. Altitude or Deco-Touch
wall control screen
alternates between
normal display and E3 or
E4 appears on screen.
• The Altitude or Deco-Touch wall
control needs to be reset.
• The Altitude or Deco-Touch wall
control is defective.
4. On Altitude wall control,
there is an important
difference between
temperature displayed
and real temperature.
• Exterior air intake port is blocked.
• The unit thermistor is defective
(integrated control LED flashes
GREEN).
• The unit damper has been blocked
or broken (integrated control LED
flashes AMBER and unit is OFF).
• Motor won’t turn.
• Clean the exterior air intake port.
• Replace the unit thermistor.
• Check for the proper operation of the unit damper; replace if necessary.
• Confirm that the motor is running, if not refer to point 9.
5. Unit does not work
(no LED is lit on the
integrated control).
• The transformer may be defective.
• The circuit board may be defective.
• The unit is unplugged.
• The unit door is opened.
• A fuse is blown.
• Wrong control connections.
• Check for 24 VAC on J8-1 and J8-2.
• Plug the unit.
• Close unit door.
• Inspect fuse on circuit board (refer to wiring diagram F1 on page 16).
• Try the integrated control (see Section 4.1 on page 13).
6. The damper actuator
does not work or rotates
continuously.
• The damper actuator or the integrated
damper port mechanism may be
defective (integrated control LED
flashes AMBER and unit is OFF).
• The circuit board or the transformer
may be defective.(integrated control
LED flashes AMBER and unit is OFF)
• Unplug the unit. Disconnect the main control and the optional controls(s) (if
need be). Wait 10 seconds and plug the unit back. Check if the damper opens.
If not, use a mulltimeter and check for 24VAC on J12-1 and J12-2 (in electrical
compartment). If there is 24VAC, replace the entire port assembly.
NOTE: It is normal to experience a small delay (7-8 seconds) before detecting
the 24VAC signal at starting-up. This signal will stay during 17-18
seconds before disappearing.
• If there is no 24VAC, check for 24VAC between J8-1 and J8-2. If there is 24VAC
replace the circuit board, and if there is no 24VAC, change the transformer.
NO C NC I OC OL Y R G B
VE0097
• Unplug the unit. Disconnect the main control
and the optional(s) control(s) (if need be).
Jump G and B terminals. Plug the unit back
and wait about 10 seconds. If the motor runs
on high speed and the damper opens, the
circuit board is not defective.
• Reset the Altitude or Deco-Touch wall
control by pressing simultaneously
on both keys for 8 second (as shown
at right). Then, unplug the unit for
30 seconds. Plug the unit back.
• If the problem is not solved, replace the Altitude or Deco-Touch wall control.


BOTH DURING 8 SEC.
VQ0048A
ALTITUDE


VQ0062
DECO-TOUCH

20
9. TROUBLESHOOTING (CONT’D)
PROBLEMS POSSIBLE CAUSES YOU SHOULD TRY THIS
7. The wall control does
not work OR its indicator
flashes.
• 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.
8. The Dehumidistat does
not work OR the push-
button timer does not
work OR its indicator light
does not stay on.
• The wires may be in reverse position.
• The Dehumidistat or push button may
be defective.
• Ensure that the color coded wires have been connected to their appropriate
places.
9. The motor does not work. • The circuit board may be defective.
• The motor may be defective.
• The motor capacitor may be defective.
• The motor is unplugged from inside
the unit.
• The motor is unplugged from the
electronic board (J4).
• There is a problem with the door
magnet switch.
• JU-1 jumper is missing or in wrong
position.
• Press on the integrated control push button until the unit turns on low speed
(the LED will light AMBER). Using a multimeter, check the voltage on J9-4 and
J9-3. Refer to Section 6 Wiring Diagram. The reading must be 120VAC Then
set the unit on high speed by pressing on the integrated control push button one
more time (the LED will light GREEN). Using a multimeter, check the voltage
on J9-4 and J9-2. The reading must be 120VAC Check also between J4-2 and
J4-1, the reading must be 120VAC Refer to Section 6 Wiring Diagram. Check if
the fuse F1 is intact. If all the readings correspond to the right voltage values,
the circuit board is not defective. If one or both readings are different, change
the circuit board.
• Using a multimeter, check for 120VAC for the following speeds: High Speed:
between GREY and ORANGE wires; Low/Medium Speed: between GREY
and RED/BLUE wires. Refer to Section 6 Wiring Diagram.
• Unplug the unit. Check for continuity between Pin 5 on the 6-pin connector
(brown leads) and Pin 3 of the capacitor connector. Also check for continuity
between Pin 4 on the 6-pin connector (brown leads) and Pin 1 of the capacitor
connector. Refer to Section 6 Wiring Diagram.
• Open the door and ensure that the wire going to the motor is connected.
• Check J4 motor connection on circuit board.
• Door magnet switch is missing or not in its place (see item no. 11 on page 18).
• Ensure JU-1 jumper is set on “M” speed (refer to Section 6 Wiring Diagram).
10. 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 6.
11. The integrated control
push button does not
work.
• The 30-second boot sequence is not
completed.
• The circuit board may be defective.
• The transformer may be defective.
• See Section 4.1.1 Boot Sequence (page 13).
• Check voltage going to circuit board J8-1 and J8-2.
• Check for 24 VAC on J8-1 and J8-2.
• Jump the OL and OC terminals. If the
unit switches 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