18 5 us~v~Installation Manual

18 5 us~v~Installation Manual
INSTALLATION GUIDE FOR
VENMAR AVS
CONSTRUCTO 1.5* AND CONSTRUCTO 2.0
VB0156
RESIDENTIAL USE ONLY
READ AND SAVE THESE INSTRUCTIONS
*This product earned the ENERGY STAR® by
meeting strict energy efficiency guidelines set
by Natural Resources Canada and the
US EPA. It meets ENERGY STAR requirements
only when used in Canada.
08054
rev. D
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. This unit 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 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: Lite-Touch Constructo or
Constructo, and no other optional wall controls than 60-minute crank timer and/or 20-minute lighted push button and/or Dehumidistat.
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 regulations 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.
2.
3.
4.
To avoid prematurate clogged filters, turn OFF the unit during construction or renovation.
Please read specification label on product for further information and requirements.
Be sure to duct air outside – Do not intake / exhaust air into spaces within walls or ceiling or into attics, crawl spaces, or garage.
Intended for residential installation only in accordance with the requirements of NFPA 90B (for a unit installed in USA) 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-
TABLE OF CONTENTS
1. TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.1
1.2
1.3
AIR DISTRIBUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
DEFROST CYCLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
DIMENSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2 TYPICAL INSTALLATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.1
2.2
2.3
FULLY DUCTED SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
CENTRAL DRAW POINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
SIMPLIFIED INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
3 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
INSPECT THE CONTENT OF THE BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
LOCATING THE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
PLANNING OF THE DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
CALCULATING DUCT SIZE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
INSTALLING THE DUCTWORK AND REGISTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8
CONNECTING THE DUCTS TO THE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
INSTALLING 2 EXTERIOR HOODS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
CONNECTING THE DRAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4. CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-12
4.1
4.2
INTEGRATED CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
ELECTRICAL CONNECTION TO OPTIONAL WALL CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-12
5.
6.
7.
8.
9
ELECTRICAL CONNECTION TO THE FURNACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
BALANCING THE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
SERVICE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
1. TECHNICAL DATA
1.1 AIR DISTRIBUTION
NORMAL OPERATION
STALE
DEFROST
FRESH
AIR
FILTERED
AIR
AIR
TO BUILDING
TO BUILDING
TO OUTSIDE
FRESH
AIR
FROM OUTSIDE
STALE
VF0022
STALE
AIR
VF0023
1.2 DEFROST CYCLES
OUTSIDE TEMPERATURE
CELSIUS (°C) FAHRENHEIT (°F)
-5
-15
-27
23
-5
-17
DEFROST CYCLES (MINUTES)
DEFROSTING OPERATION BETWEEN EACH
DEFROST CYCLE
6
32
6
32
6
20
EXTENDED DEFROST CYCLES (MINUTES)
DEFROSTING OPERATION BETWEEN EACH
DEFROST CYCLE
10
30
10
20
10
15
In a cold region, setup EXTENDED DEFROST by pressing on the push button on the electrical compartment. See section 4.1.2
Setting Extended Defrost on page 10.
1.3 DIMENSIONS
6” (152 mm)
30¼” (768 mm)
171/8” (435 mm)
16½”
(419 mm)
VK0029A
-3-
AIR
FROM BUILDING
FROM BUILDING
2. TYPICAL INSTALLATIONS
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.
2.1 FULLY DUCTED SYSTEM (PRIMARILY FOR HOMES WITH RADIANT HOT WATER OR ELECTRIC BASEBOARD HEATING.)
Stale air coming from the registers located at the highest level of the house
is exhausted to the outside. Fresh air from outside 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.
VH0002
2.2 CENTRAL DRAW POINT (CONNECTION TO A FORCED AIR SYSTEM.)
Stale air coming from the registers located at the highest level of the house
is exhausted to the outside. Fresh air from outside 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.
VH0006
2.3 SIMPLIFIED INSTALLATION (CONNECTION TO A FORCED AIR SYSTEM)
Stale air is exhausted to the outside. Fresh air from outside 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.
VH0007
-4-
3. INSTALLATION
3.1 INSPECT THE CONTENT
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 the hardware kit from the unit. Inspect the interior of the unit for damage. Ensure that heat recovery core, core filters, insulation,
dampers, etc. are all intact.
3.2 LOCATING THE UNIT
Choose an appropriate location for the unit.
• Within an area of the house where the ambient temperature is between 10°C (50°F) and 50°C (122°F) (basement, furnace room,
closet, etc.).
• Away from living areas (dining room, living room, bedroom), if possible
• So as to provide easy access to the interior of the unit, for 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).
Close to a drain. If no drain is close by, use a pail to collect run-off.
CAUTION
Make sure the unit is level.
Hang the unit with the four chains and springs provided.
See illustrations beside.
VD0037
VD0038
3.3 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.
3.4 CALCULATING DUCT
SIZE
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.
DUCT DIAMETER
4” Ø (102 MM)
5” Ø (127 MM)
6” Ø (152 MM)
7” Ø (178 MM)
8” Ø (203 MM)
RECOMMENDED AIR FLOW
40 CFM (19 L/S OR 68 M³/H)
75 CFM (35 L/S OR 127 M³/H)
120 CFM (57 L/S OR 204 M³/H)
185 CFM (87 L/S OR 314 M³/H)
260 CFM (123 L/S OR 442 M³/H)
-5-
MAXIMUM AIR FLOW
60 CFM (28 L/S OR 102 M³/H)
110 CFM (52 L/S OR 187 M³/H)
180 CFM (85 L/S OR 306 M³/H)
270 CFM (127 L/S OR 459 M³/H)
380 CFM (179 L/S OR 645 M³/H)
3. INSTALLATION (CONT’D)
3.4 CALCULATING DUCT
SIZE (CONT’D)
NOTE: Examples 3.4.1 and 3.4.2 use imperial units. The same calculation applies to metric units.
3.4.1
Example of calculation
END
Problem: My installation requires two exhaust registers (one for the kitchen, and the other for
BRANCHES
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 5” Ø,
and for both end branches leading to the registers? (See figure beside.)
70 CFM
MAIN BRANCH
6ӯ, 140 CFM
Solution: Simplified method. (For a more detailed method of calculating duct size, refer to the
ASHRAE or HRAI HANDBOOK.)
Main duct: Table on page 5 indicates for a 6” Ø duct: recommended air flow: 120 cfm, maximum
air flow: 180 cfm. The 140 cfm high speed air flow is close enough to the recommended value
(120) and far away enough from the maximum value (180). Therefore, a 6” Ø duct or larger is
an appropriate choice for the main exhaust duct.
VI0003
End branches: Each end branch will have to transport a 70 cfm air flow (140 divided by 2). Table on page 5 indicates for 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 away enough from the maximum value (110). Therefore, a 5” Ø duct or larger is an appropriate
choice for both 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.
3.4.2
Example of a design for a fully ducted system with a unit having a high speed performance of 222 cfm.
5”
4”
4”
5”
4”
5” Ø 65 cfm
5” Ø 64 cfm
4” Ø 42 cfm
4” Ø
42 cfm
4”
6” Ø 96 cfm
4”
6” Ø
84 cfm
6”
6”
6” Ø 129 cfm
6” Ø 93 cfm
7”
7”
6”
6”
6” Ø 138 cfm
VI0004
3.5 INSTALLING THE DUCTWORK
7” Ø 222 cfm
7” Ø 222 cfm
AND
3.5.1 FULLY DUCTED SYSTEM (AS
REGISTERS
ILLUSTRATED IN
SECTION 2.1)
0
! 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.
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.
• 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 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 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’s level.)
• If a register must be floor installed, direct the airflow up the wall.
-6-
3. INSTALLATION (CONT’D)
3.5 INSTALLING THE DUCTWORK
AND
REGISTERS (CONT’D)
3.5.2 CENTRAL DRAW POINT SYSTEM (AS
ILLUSTRATED IN
SECTION 2.2)
Stale air exhaust ductwork
Same as for Fully Ducted System, described on point 3.5.1)
! 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.
0
CAUTION
When performing duct connections to the furnace supply duct, this duct must be sized to support the additional airflow
produced by the HRV. Also, use a steel duct.
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 distribution port of the HRV (use steel
duct, see figure beside).
• Make sure the HRV duct form an elbow inside the furnace/air handler ductwork.
• If desired, interlock (synchronize) the furnace/air handler blower operation (see
Section 5).
18”
(0.5 M)
MINIMUM
STEEL DUCT
VD0172
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 distribution port of the HRV
(see figure beside).
NOTE: For Method 2, it is not essential that the furnace/air handler runs when the
unit is operation, but we recommend it. If desired, interlock (synchronize) the
furnace/air handler blower operation (see Section 5).
3.5.3 SIMPLIFIED INSTALLATION (AS
ILLUSTRATED IN
A
B
A+B= NOT LESS
THAN 10’ (3.1 M)
VD0108
SECTION 2.3)
0
! 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 (Method 1), this duct must be sized to support the additional
airflow produced by the HRV. Also, use a steel duct. For a Return-Return installation, the furnace blower must be in operation
when the HRV is in operation.
There are 2 methods for connecting the unit to the furnace/air handler:
Method 1: Supply-return connection
Method 2: Return-retur
A
18”
(0.5 M)
MINIMUM
B
STEEL DUCT
A
3’
(0.9 M)
MINIMUM
B
A+B= NOT LESS
10’ (3.1 M)
THAN
VD0111
A+B= NOT LESS
THAN 10’ (3.1 M)
VD0171
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.
-7-
3. INSTALLATION (CONT’D)
3.5 INSTALLING THE DUCTWORK
AND
3.5.3 SIMPLIFIED INSTALLATION (AS
REGISTERS (CONT’D)
ILLUSTRATED IN
SECTION 2.3) (CONT’D)
Fresh air distribution
CAUTION
If using Method 2, make sure the furnace/air handler blower operation is synchronized with the unit operation! See Section 5.
• Same instructions as for Method 1 or Method 2, Section 2.7.2.
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.
3.6 CONNECTING THE DUCTS TO THE UNIT
Insulated flexible ducts
Use the following procedure for connecting the insulated flexible ducts to the ports of the unit (Exhaust air to outside and Fresh air
from outside ports).
VJ0001
Pull back the insulation
to expose the flexible
duct.
VJ0004
VJ0003
VJ0002
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.
VJ0005
Pull the vapor barrier
over the insulation and
over the outer ring of the
double collar.
CAUTION
Make sure the vapor
barrier on the insulated
ducts does not tear
during installation to
avoid condensation
within the ducts.
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.
Rigid ducts
CAUTION
Do not use screws to connect the rigid ducts to the unit ports.
Use duct tape to connect the rigid ducts to the unit ports.
Make sure 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 below.
VJ0011
-8-
3. INSTALLATION (CONT’D)
3.7 INSTALLING 2 EXTERIOR HOODS
Choose an appropriate location to install the exterior
hoods:
• There must be a minimum distance of 6 feet (1.8 m)
between the hoods to avoid cross-contamination
• There must be a minimum distance of 18 inches
(457 mm) from the ground
EXHAUST
6’’ Ø
(152 MM)
HOOD
INTAKE
HOOD
18’’
(457 MM)
Make sure the intake hood is at least 6 feet (1.8 m) away
from the following:
6’
(1.8 M)
• Dryer exhaust, high efficiency furnace vent, central
vacuum vent
18’’
(457 MM)
6’
(1.8 M)
• Gas meter exhaust, gas barbecue grill
• Any exhaust from a combustion source
18’’
(457 MM)
OPTIONAL
• Garbage bin and any other sources of contamination
DUCT LOCATION
Refer to figure beside 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.
TAPE
AND DUCT TIE
VD0028
3.8 CONNECTING THE DRAIN
± 12"
(± 305 mm)
± 12"
(± 305 mm)
VO0010
From the inside of the unit, punch
both knock-out sections located at the
bottom of the unit.
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
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.
VO0003
VO0005A
In order to keep the drain pan intact,
hand tighten both plastic drain fittings
to the unit using the gaskets, washers
and nuts as shown.
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
VO0011
Cut 2 sections of the plastic tube,
about 12” (305 mm) long, and attach
them to each drain fitting. Join both
short sections to the “T” junction and
main tube as shown.
TO
± 1”
DRAIN
VD0231A
-9-
4. CONTROLS
4.1
INTEGRATED CONTROL
2
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.
1
VD0193
Refer to table below to see how to operate the unit using its integrated control.
PRESS
ON PUSH BUTTON
ONCE
TWICE
THREE TIMES
LED COLOR
AMBER
GREEN
NO LIGHT
RESULTS
UNIT IS ON LOW SPEED
UNIT IS ON HIGH SPEED
UNIT IS OFF
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 last page 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 (outside temperature -27°C [-17°F] and lower), 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).
- 10 -
4. CONTROLS (CONT’D)
4.2 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.
0
! 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.
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 beside, wire A is
correctly inserted, but not wire B.)
A
VE0106
4.2.1 ELECTRICAL CONNECTION TO LITE-TOUCH CONSTRUCTO MAIN WALL CONTROL
MAIN WALL CONTROL
LITE-TOUCH CONSTRUCTO
and
SIMPLE-TOUCH CONSTRUCTO
REAR VIEW
NO C NC I OC OL Y R G B
Y
OC
G B
G B
VE0100A
4.2.2 ELECTRICAL CONNECTION TO CONSTRUCTO MAIN WALL CONTROL
M FO R T Z ON E
CO
01/98
XXX
XX
5°C
41°F
-
#
-20°C
-4°F
NO C NC I OC OL Y R G B
CONSTRUCTO
VE0102
- 11 -
OFF MIN MAX
-5°C
23°F
B
4. CONTROLS (CONT’D)
4.2 ELECTRICAL CONNECTION TO OPTIONAL WALL CONTROLS (CONT’D)
4.2.3 ELECTRICAL CONNECTION TO OPTIONAL AUXILIARY WALL CONTROLS
60-MINUTE
CRANK TIMER
DEHUMIDISTAT
NOTE: If an optional auxiliary wall control is
activated and then, the Dehumidistat
is being activated, the Dehumidistat
will override the auxiliary wall control
commands.
20-MINUTE PUSH-BUTTON SWITCHES
(5 MAXIMUM)
NO C NC I OC OL Y R G B
VE0104A
TERMINAL
CONNECTOR
Once the wall control(s) connections have been made, insert the terminal connector on the electrical
compartment front face.
NOTE: For information about the operation of the wall controls, refer to the user guide.
VD0193
5. ELECTRICAL CONNECTION TO THE FURNACE
0
! 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
THERMOSTAT
TERMINALS
FOUR
WIRES
TWO WIRES
heating only
W
R
G
W
4 WIRES
G
Y
THERMOSTAT
TERMINAL
2 WIRES
heating only
wiring
nuts
W
RR
NO
NC
G
C
C
C
YY
Y
FURNACE
24-VOLT
TERMINAL BLOCK
R
UNIT TERMINAL CONNECTOR
Y
NO C NC I OC OL Y R G B
G
UNIT TERMINAL CONNECTOR
R
NO C NC I OC OL Y R G B
W
ALTERNATE FURNACE INTERLOCK WIRING
FURNACE
24-VOLT
TERMINAL BLOCK
TWO WIRES
2 WIRES
COOLING SYSTEM
VE0108A
- 12 -
COOLING SYSTEM
nc
BK
- 13 -
BN
R
nc
VE0156A
Fan
motor
M1
BL
GND GN
HI
O
COM
GY
LO
MED
BN
Motor BK
capacitor
C1
nc
nc
GY
BN
BN
nc
12
GN
BK
O
W
nc
nc
nc
BK
nc
nc
nc
nc
nc
R
BK
W
Critical characteristic.
1 2 3 4 5 6
1 2 3
1 2 3 4 5 6
1 2 3
2
1
1
2
3
1
2
3
2
1
BK
J2
J8
J9
3 2 1
5 4 3 2 1
Y BN
Y BN
F1
W1
W
GN
BK
J10
J12
J11
BK
BL
BN
GY
GN
12
J3
12
54321
J1
R1
COLOR CODE
BLACK
O
ORANGE
R
RED
BLUE
W
WHITE
BROWN
Y
YELLOW
GRAY
nc
no connection
GREEN
Line voltage factory wiring
Class 2 low voltage factory wiring
Class 2 low voltage field wiring
Furnace blower interlock
J14-1 : NO
J14-2 : COM
J14-3 : nc
(optional; see notes 3, 5)
Override
switch
(optional; see
notes 3 & 4)
B GR Y
Field wiring
remote control
(see notes 3 & 4)
t˚
Defrost
temperature sensor
DAMPER
ELECTRONIC ASSEMBLY
10
9
8
J13 7
6
5
ICP
4
3
2
1
J14
21
A2
ELECTRONIC
ASSEMBLY A1
1 2 3 4 5
S1
Door interlock switch
(magnetically actuated
reed switch)
24 V
class 2
9.5 V
W
W
class 2
4 321
See note 1 2 1
T1
120 V, 60 Hz
J4
J6
J7
J5
BK
NEUTRAL
120 V
M3
BK
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.
Damper motor
JU1
1 2
WIRING DIAGRAM
neutral
120 V
Motor
capacitor
C1
MED
COM
HI
GND
LO
24 V
class 2
9.5 V
class 2
J8-5
J8-1
J8-2
J8-4
J9-4
J9-1
J9-2
J9-3
F1
K2
1 2 3
CPU
J10-2
120 V, 60Hz
Line
K3
K1
K5
K4
K2
JU1
J11-2
J11-1
J12-5
J12-4
K4 J12-3
J12-2
J12-1
K3
K1
LOGIC DIAGRAM
K5
J2-5
J2-4
J2-3
J2-2
J2-1
J6-2
J6-1
J10-1
J4-2
J4-1
J4-3
J7-2
J7-1
J5-2
J5-1
J5-3
A1
A2
Damper motor
J14-4
J14-5
J14-6
J14-7
J14-8
J14-9
J14-10
J14-2
J14-1
J14-3
Override
switch
(optional; see
notes 3, 4)
Field wiring
remote
control (see
notes 3, 4)
Furnace
blower
interlock
(optional; see
notes 3, 5)
Door interlock switch
J3-2
J3-1
nc
nc
nc
nc
nc
nc
nc
nc
120V, 60Hz
Neutral
6. WIRING DIAGRAM
! WARNING
Risk of electric shocks. Before performing any maintenance or servicing, always disconnect the unit from its power source.
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
7.2 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.
Make sure all filters are clean (if it is not the first time the unit is balanced).
VD0051
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 beside).
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
Fresh air flow
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.
VP0010
5. Secure both dampers in place with tape or with a fastening screw.
Exhaust air flow
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).
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.
- 14 -
8. SERVICE PARTS
3
4
5
6
7
3
8
9
2
1
10
19
18
17
13
15
14
12
16
11
VL0039
REPLACEMENT PARTS
AND
REPAIR
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.
ITEM DESCRIPTION
QUANTITY
HRV CONSTRUCTO 1.5
HRV CONSTRUCTO 2.0
6
7
8
9
DAMPER SYSTEM ACTUATOR (INCLUDING 18)
DOUBLE COLLAR PORT
HINGE ASSEMBLY (KIT)
DOOR ASSEMBLY (INCLUDING 3 AND 5)
DOOR LATCHES (KEEPER)
AND SCREWS
BALANCING DAMPER
BALANCING DOUBLE COLLAR PORT
DRAIN CONNECTOR KIT
SMALL BASIC FILTER
1
2
1
1
2
4
2
2
1
1
10
HEAT RECOVERY CORE
1
11
12
13
BASIC FILTER
BLOWER ASSEMBLY (INCLUDING 12)
SQUARE DAMPER KIT
DOOR LATCHES
AND SCREWS
DAMPER NO 1 (KIT)
TRANSFORMER
CAPACITOR 7.5 µF
ELECTRONIC BOARD
THERMISTOR KIT
2
1
1
2
4
1
1
1
1
1
17235
02257
13036
13346
00887
00601
02253
02256
03203
09300
03322 (CANADA)
03311 (U.S.A.)
02300
17236
17243
00886
00601
17245
17244
17240
17241
17242
17235
02257
13036
13346
00887
00601
02253
02256
03203
09300
03322 (CANADA)
03311 (U.S.A.)
02300
17237
17243
00886
00601
17245
17244
17240
17241
17242
1
2
3
4
5
14
15
16
17
18
19
- 15 -
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.
• Thermistor error.
Replace the thermistor kit.
LED flashes AMBER.
• Damper error.
Go to Point 6.
! 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. Unit does not work.
• The circuit board may be defective.
• Unplug the unit. Disconnect the main
control and the optional(s) control(s) NO C NC I OC OL Y R G B
(if need be). Jump G and B terminals.
Plug the unit back and wait about
10 seconds. If the motors run on high VE0097
speed and the damper opens, the circuit board is not defective.
2. The damper actuator
does not work.
•The fuse may be defective.
• The damper actuator or the integrated
damper port mechanism may be defective.
• Check fuse F1 if it is blown. In that case, replace fuse F1.
• 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 24V AC on J12-1 and J12-2
(in electrical compartment). If there is 24V AC, replace the entire port assembly.
NOTE: It is normal to experience a small delay (7-8 seconds) before
detecting the 24V AC signal at starting-up. This signal will stay
during 17-18 seconds before disappearing.
• If there is no 24V AC, check for 24V AC between J8-1 and J8-2. If there is
24V AC replace the circuit board, and if there is no 24V AC, change the transformer.
• The circuit board or the
transformer may be defective.
3. The wall control does not
work OR its indicator flashes.
• The wires may be in reverse position.
• 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.
• The wires may be broken.
• The wire in the wall OR the wall
control may be defective.
4. The Dehumidistat does not
work OR the 20-minute
push-button timer does not
work OR its indicator light
does not stay on.
• The wires may be in reverse position.
5. The motor does not work.
• The circuit board may be defective.
• 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 NO C NC I OC OL Y R G B
Dehumidistat or push button and
test it right beside the unit using
another shorter wire. If it works here, VE0098
change the wire. If it doesn’t, change the Dehumidistat or the push button.
• The Dehumidistat or push button
may be defective.
• Press on the integrated control push button until the unit turn 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 120 volts A.C. 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 120 volts A.C. Check also between J4-2 and J4-1, the
reading must be 120 volts A.C. 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 120 volts A.C. 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.
• The motor may be defective.
• The motor capacitor may be defective
6. The defrost cycle does not work
(the fresh air duct is frozen OR
the fresh air distributed
is very cold.
7. The integrated control
push button does not work.
• Ice deposits may be hindering
the damper operation.
• Remove the ice.
•The damper rod or the port
damper itself may be broken.
• The damper actuator or circuit board
may be defective.
• Inspect these parts and replace if necessary.
• The 30-second boot sequence
is not completed.
• See Section 4.1.1 Boot Sequence.
• See point 2.
- 16 -
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