Venmar ERV EKO 1.5, HRV EKO 1.5, CONSTRUCTO 1.5V Installation Manual

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Page 1

INSTALLATION GUIDE

VENMAR AVS

ERV EKO 1.5

HRV EKO 1.5

CONSTRUCTO 1.5V

vänEE

ERV 90H-V ECM

HRV 90H-V ECM

90H-V

THIS UNIT HAS A SPECIAL START-UP

PROCEDURE, REFER TO PA GE 12.

HIS UNIT HAS A SPECIAL START-UP

PROCEDURE, REFER TO PA GE 12.

VB0119

THIS UNIT HAS A SPECIAL START-UP

PROCEDURE, REFER TO PA GE 12.

HIS UNIT HAS A SPECIAL START-UP

PROCEDURE, REFER TO PA GE 12.

! !

RESIDENTIAL USE ONLY

READ AND SAVE THESE INSTRUCTIONS

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.

08300 rev. 08

Page 2

ABOUT THIS GUIDE

Because of the large amount of models covered in 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 guide 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 guidel 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. Installation work and electrical wiring must be done by a qualified person(s) in accordance with all applicable codes and standards, including fire-rated construction codes and standards.

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. We recommend that your unit be inspected by a specialized technician once a year.

3. Before servicing or cleaning the unit, disconnect power cord from electrical outlet.

4. This unit is not designed to provide combustion and/or dilution air for fuel-burning appliances.

5. When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden utilities.

6. Do not use the units with any solid-state speed control device other than the corresponding ones listed below: UNIT MAIN CONTROL AUXILIARY CONTROL

ERV EKO 1.5, HRV EKO 1.5 ALTITUDE OR DECO-TOUCH 20/40/60-MINUTE PUSH-BUTTON TIMER AND 60-MINUTE CRANK TIMER

ERV 90H-V ECM, HRV 90H-V ECM PLATINUM OR DECO-TOUCH 20/40/60-MINUTE PUSH-BUTTON TIMER AND 60-MINUTE CRANK TIMER

CONSTRUCTO 1.5V

90H-V

7. 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.

8. Do not install in a cooking area or connect directly to any appliances.

9. Do not use to exhaust hazardous or explosive materials and vapors.

10. When performing installation, servicing or cleaning these units, it is recommended to wear safety glasses and gloves.

11. Due to the weight of the unit, two installers are recommended to perform installation.

12. 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.

LITE-TOUCH CONSTRUCTO,

CONSTRUCTO OR DECO-TOUCH

LITE-TOUCH, BRONZE

OR DECO-TOUCH

20-MINUTE LIGHTED PUSH-BUTTON TIMER,

DEHUMIDISTAT AND 60-MINUTE CRANK TIMER

20-MINUTE LIGHTED PUSH-BUTTON TIMER,

DEHUMIDISTAT AND 60-MINUTE CRANK TIMER

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 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 applicable codes.

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 ducts must be insulated, and 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).

Page 3

TABLE OF CONTENTS

1. TECHNICAL DATA .................................................................................................................................................................4

1.1 AIR DISTRIBUTION ...................................................................................................................................................................... .4

1.2 D

1.3 DIMENSIONS................................................................................................................................................................................ 4

2 TYPICAL INSTALLATIONS ........................................................................................................................................................5

2.1 FULLY DUCTED SYSTEM .............................................................................................................................................................. .5

2.2 CENTRAL DRAW POINT .................................................................................................................................................................5

2.3 SIMPLIFIED INSTALLATION ............................................................................................................................................................... 5

2.4 ATTIC INSTALLATION FOR ERV EKO 1.5 ONLY .................................................................................................................................. 6

3 INSTALLATION ................................................................................................................................................................. 6-11

3.1 INSPECT THE CONTENT OF THE BOX ............................................................................................................................................. .6

3.2 UNIT DOOR(S) ........................................................................................................................................................................... 6

3.3 LOCATING THE UNIT ..................................................................................................................................................................... 6

3.4 PLANNING OF THE DUCTWORK ....................................................................................................................................................... 7

3.5 CALCULATING DUCT SIZE ............................................................................................................................................................. 7

3.6 INSTALLING THE DUCTWORK AND REGISTERS ................................................................................................................................. 8-9

3.7 CONNECTING THE DUCTS TO THE UNIT ......................................................................................................................................... 10

3.8 INSTALLING TWO EXTERIOR HOODS ...............................................................................................................................................11

3.9 CONNECTING THE DRAIN .............................................................................................................................................................11

4. CONTROLS ..................................................................................................................................................................12-15

4.1 UNITS BOOTING SEQUENCE ........................................................................................................................................................ 12

4.2 INTEGRATED CONTROL ................................................................................................................................................................ 12

4.3 SPEED AND DEFROST SETTINGS FOR ERV EKO 1.5, HRV EKO 1.5, ERV 90H-V ECM AND HRV 90H-V ECM UNITS ...................... 13

4.4 SETTING EXTENDED DEFROST FOR CONSTRUCTO 1.5V AND 90H-V UNITS ........................................................................................ 13

4.5 ELECTRICAL CONNECTION TO MAIN CONTROLS ..............................................................................................................................14

4.6 ELECTRICAL CONNECTION TO OPTIONAL AUXILIARY CONTROLS ......................................................................................................... 15

5. ELECTRICAL CONNECTION TO THE FURNACE ........................................................................................................................... 16

6. WIRING DIAGRAMS ....................................................................................................................................................... 17-18

7. B ALANCING THE UNIT .........................................................................................................................................................19

7.1 WHAT YOU NEED TO BALANCE THE UNIT ...................................................................................................................................... 19

7.2 PRELIMINARY STAGES TO BALANCE THE UNIT.................................................................................................................................. 19

7.3 BALANCING PROCEDURE ............................................................................................................................................................. 19

8. SERVICE PARTS ................................................................................................................................................................20

9. TROUBLESHOOTING .......................................................................................................................................................21-22

EFROST CYCLES ........................................................................................................................................................................ 4

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1. TECHNICAL DATA

1.1 AIR DISTRIBUTION

NORMAL OPERATION DEFROST OR RECIRCULATION

STALE AIR

TO OUTSIDE

VF0045

FRESH AIR

FROM OUTSIDE

STALE AIR

FROM

BUILDING

FRESH AIR

BUILDING

VF0046

STALE AIR

FROM

BUILDING

FILTERED AIR

BUILDING

1.2 DEFROST CYCLES

HRV EKO 1.5 AND

HRV 90H-V ECM UNITS

OUTSIDE TEMPERATURE DEFROST CYCLES (MINUTES)EXTENDED DEFROST CYCLES (MIN.) EXTENDED DEFROST CYCLES (MIN.)

°C °F D

EFROSTING

OPERATION BETWEEN

EACH DEFROST CYCLE

DEFROSTING

OPERATION BETWEEN

EACH DEFROST CYCLE

-5 23 7 (HRV) 25 (HRV) 10 20 9 23

-10 14 7 (ERV) 25 (ERV) 10 20 9 23

-27 -17 10 (HRV & ERV) 22 (HRV & ERV) 10 15 10 22

CONSTRUCTO 1.5V

AND 90H-V UNITS

DEFROSTING

OPERATION BETWEEN

EACH DEFROST CYCLE

In a cold region, (outside temperature -27°C [-17°F] and lower), it may be necessary to setup EXTENDED DEFROST. See Section 4.3 or 4.4, according to the unit model.

1.3 DIMENSIONS

/16”

24 9/16”

(624 mm)

(572 mm)

VK0066A

22 ½”

/16”

(358 mm)

/16”

(380 mm)

(599 mm)

18 ¼”

(464 mm)

2 ¹/

16”

(53 mm)

NOTE: Every port fits 6” round duct.

/16”

(97 mm)

/16”

(189 mm)

Page 5

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. If required, bathroom fans and a range hood may 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.

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.

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.

VH0071

VH0072

VH0073

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2. TYPICAL INSTALLATIONS (CONT’D)

2.4 ATTIC INSTALLATION FOR ERV EKO 1.5 ONLY

All three types of installation can be used in the attic (Fully ducted, Central Draw Point or Simplified). The example shown below is a Simplified Installation (connection to a forced air system).

NOTE: To get the most of your ERV unit, the ambient temperature around the unit should be conditioned. If the unit has to be installed

in a unconditioned space, the heat gains or losses from the unit and the ducts could increase the operation costs of the unit.

CAUTION

• Due to the potential temperature difference between the attic and the rest of the house, all unit ducts must be insulated.

• The attic temperature must always be above 10°C (50°F) and under 50°C (122°F).

Stale air is exhausted to the outside. Fresh air from outside is filtered and supplied to the return (plenum) of the forced air unit. See figure at right.

To avoid cross-contamination and achieve the highest efficiencies, the forced air system blower must always be ON.

NOTE: Home with multiple forced air systems should have one unit on each system.

VH0076

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, ports, power cord, etc.

3.2 UNIT DOOR(S)

The ERV EKO 1.5, HRV EKO 1.5, ERV 90H-V ECM and the HRV 90H-V ECM units have one front door and one back door while the Constructo 1.5V and the 90H-V units only have one door. For these last models, the unit door can be relocated on the back of the unit. This can be helpful to optimize duct configuration while keeping access for unit maintenance. To change door

location, follow these steps: A. Remove both door lower mechanical screws no. 8-32 x 1” (1) and set

aside.

B. Open (2) and lift out the door (3). To remove unit back panel, repeat steps A and B, but instead of removing

2 mechanical screws, there are 4 metal screws to be removed. Hang the door to the back of the unit and secure it by tightening its both lower mechanical screws. Hang back panel to the front of the unit and secure it by tightening its four metal screws.

3.3 LOCATING THE UNIT

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 of the unit, for semi-annual

and annual maintenance.

• Close to an exterior wall, so as to limit the length of the insulated flexible

duct to and from the unit.

• Away from hot chimneys and other fire hazards.

• Allow for a power source (standard 3-prong grounding outlet).

• Close to a drain. If no drain is close by, use a pail to collect run-off.

Hang the unit with the four chains and springs provided. See illustration at right.

VO0149

Make sure the unit is level.

CAUTION

VD0205

Page 7

3. INSTALLATION (CONT’D)

3.4 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.

3.5 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 RECOMMENDED AIR FLOW MAXIMUM AIR FLOW

4” Ø (102 MM) 40 CFM (19 L/S OR 68 M³/H) 60 CFM (28 L/S OR 102 M³/H) 5” Ø (127 6” Ø (152

NOTE: Examples 3.5.1 and 3.5.2 use imperial units. The same calculation applies to metric units.

3.5.1 EXAMPLE OF CALCULATION

Problem: My installation requires two exhaust registers (one for the kitchen, and the other 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 both 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 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.

End branches: Each end branch will have to transport a 70 cfm air flow (140 divided by 2). Table

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.

MM) 75 CFM (35 L/S OR 127 M³/H)110 CFM (52 L/S OR 187 M³/H) MM) 120 CFM (57 L/S OR 204 M³/H) 180 CFM (85 L/S OR 306 M³/H)

END

BRANCHES

5" Ø,

70 CFM

MAIN BRANCH

6" Ø, 140 CFM

VI0016

3.5.2 Example of a design for a fully ducted system with a unit having a high speed performance of 160 cfm.

4" Ø, 47 CFM

5" Ø, 93 CFM

5" Ø, 67 CFM

VI0017

4" 4"

4" Ø,

CFM

6" Ø, 160

CFM

4" Ø,

CFM

4" Ø, 24 CFM

5" Ø,

74 CFM

6" Ø, 160 CFM

5" Ø, 62 CFM

5" Ø, 86 CFM

Page 8

3. INSTALLATION (CONT’D)

3.6 INSTALLING THE DUCTWORK AND REGISTERS

3.6.1 FULLY DUCTED SYSTEM (AS ILLUSTRATED IN SECTION 2.1)

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.

3.6.2 CENTRAL DRAW POINT SYSTEM (AS ILLUSTRATED IN SECTION 2.2)

Stale air exhaust ductwork Same as for Fully Ducted System, described on point 3.6.1

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.

CAUTION

When performing duct connections to the furnace supply duct, this duct must be sized to support the additional airflow produced by the unit. Also, the use of metal duct is highly recommended.

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 unit (use metal

duct, see figure at right).

• Make sure the unit duct forms an elbow inside the furnace/air handler ductwork.

• If desired, interlock (synchronize) the furnace/air handler blower operation (see

Section 5 ELECTRICAL CONNECTION TO FURNACE).

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 unit (see figure at

right).

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 ELECTRICAL CONNECTION TO FURNACE).

METAL DUCT

VJ0061

VJ0062

A+B = NOT LESS

THAN 10’ (3.1 M)

MINIMUM 18"

(0.5 M)

Page 9

3. INSTALLATION (CONT’D)

3.6 INSTALLING THE DUCTWORK AND REGISTERS (CONT’D)

3.6.3 SIMPLIFIED INSTALLATION (AS ILLUSTRATED IN SECTION 2.3)

WARNING

When performing duct connections, always use approved tools and materials. Respect all corresponding laws and safety regulations. Please refer to your local building code.

CAUTION

When performing duct connections to the furnace supply duct (Method 1), this duct must be sized to support the additional airflow produced by the unit. Also, the use of metal duct is highly recommended. For a Return-Return installation, the furnace blower must be in operation when the unit is in operation.

There are 2 methods for connecting the unit to the furnace/air handler:

Method 1: Supply-return connection Method 2: Return-return

METAL DUCT

MINIMUM 18"

(0.5 M)

VJ0064

MINIMUM 3'

(0.9 M)

A+B = NOT LESS

THAN 10’ (3.1 M)

VJ0063

A+B = NOT LESS

THAN 10’ (3.1 M)

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 unit.

Fresh air distribution

• Same instructions as for Method 1 or Method 2, Section 3.6.2.

For Method 2 (Return-return), make sure there is a distance of at least 3 feet (0.9 m) between the 2 connections to the furnace/

air handler.

CAUTION

If using Method 2, make sure the furnace/air handler blower operation is synchronized with the unit operation! See Section 5.

NOTE: For Method 1, it is not essential to synchronize the furnace blower operation with the unit operation, but we recommend it.

Page 10

3. INSTALLATION (CONT’D)

3.7 CONNECTING THE DUCTS TO THE UNIT

Insulated flexible ducts Use the following procedure to connect the insulated flexible ducts to the ports of the unit (Exhaust air to outside and Fresh air from

outside ports).

CAUTION

If ducts have to go through an unconditioned space (e.g.: attic), always use insulated ducts.

1. Pull back the insulation to expose the flexible duct.

2. Attach the flexible duct to the port using tie wrap.

3. Pull the insulation over the joint and tuck in between the inner and outer rings of the double collar.

4. 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

Make sure the vapor barrier on the insulated ducts does not tear during installation to avoid condensation within the ducts.

COLLAR PIN

VJ0067

Non-insulated rigid ducts

Use metal screws and duct tape to connect the rigid ducts to the unit ports.

VJ0066

COLLAR PIN

Non-insulated flexible ducts

Use tie wraps to connect the flexible ducts to the unit ports.

Page 11

3. INSTALLATION (CONT’D)

3.8 INSTALLING TWO 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

WARNING

Make sure the intake hood is at least 6 feet (1.8 m) away from any of the following:

• Dryer exhaust, high efficiency furnace vent, central vacuum vent

• Gas meter exhaust, gas barbecue-grill

• Any exhaust from a combustion source

• Garbage bin and any other source of contamination

Refer to figure at right for connecting insulated ducts to the exterior hoods. An “Anti-gust intake hood’’ should be installed in regions where a lot of snow is expected to fall.

EXHAUST HOOD

(457 MM)

18"

(1.8 M)

INTAKE HOOD

6" Ø

(152 MM)

18"

(457 MM)

TAPE AND DUCT TIE

PTIONAL DUCT

LOCATION

(1.8 M)

18"

(457

MM)

VD0028

3.9 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.

16"

(406 mm)

VO0176A

Cut 2 sections of the plastic tube, at least 16” (406 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.

DRAIN PLUGS

VD0239

NOTE: For ERV units, remove both drain plugs inside the unit prior

to install tubing.

16"

(406 mm)

TIE WRAP

± 1”

VD0232A

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.

Page 12

4. CONTROLS

All units are equipped with an integrated control located under the unit, on the recessed side of electrical compartment. Plug the unit.

4.1 UNITS BOOTING SEQUENCE

The unit booting 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.

4.1.1 ERV EKO 1.5, HRV EKO 1.5, ERV 90H-V ECM and HRV 90H-V ECM During the booting sequence, the integrated control LED will light AMBER for 10 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 C During the booting sequence, the integrated control LED will light GREEN (unit set in normal defrost) or amber (unit set in

NOTE: No command will be taken until the unit is fully booted.

4.2 INTEGRATED CONTROL

Use the push button (1) to control the unit. The LED (2) will then show on which mode the unit is in.

ONSTRUCTO 1.5V AND 90H-V

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.

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 NO LIGHT UNIT IS OFF

VD0206

BOTTOM OF THE UNIT

If a problem occurs during the unit operation, its integrated control LED (2) will blink. The color of the blinking light depends on the type of error detected. Refer to Section 9 Troubleshooting on page 21 for further details.

NOTE: When using main control, the integrated control must be turned off.

Page 13

4. CONTROLS (CONT’D)

4.3 SPEED AND DEFROST SETTINGS FOR ERV EKO 1.5, HRV EKO 1.5, ERV 90H-V ECM AND HRV 90H-V ECM UNITS

The special design of ERV EKO 1.5, HRV EKO 1.5, ERV 90H-V ECM and HRV 90H-V ECM units offers 4 speed ranges to better meet to different ventilation needs.

Refer to the table below to choose the right speed range according to the size of the house:

CFM VALUES

NOTE: These CFM values are

approximate, they may vary according to the installation static pressure.

These units are factory set to normal defrost. In cold region (outside temperature -27°C [-17°F] and lower), it may be necessary to setup extended defrost.

TO MODIFY THE FACTORY SETTINGS, PROCEED AS FOLLOW:

NOTE: Anytime in setting process, if there is no activation on push button for 60 seconds, the unit will automatically exit setting mode, but

the settings made before this 60-second delay will remain.

ACTION

 During the first 7 seconds of booting sequence, while the

integrated control LED is AMBER, press on push button for about 3 seconds.

 Set the speed range by presssing consecutively on push button

the number of times corresponding to the desired speed range.

See table below.

NOTE: It is possible to change the selection as many

times needed.

SPEED RANGE HRV MIN. SPEED HRV MAX. SPEED ERV MIN. SPEED ERV MAX. SPEED

1 HIGH (FACTORY SET) 80 CFM 157 CFM 84 CFM 140 CFM 2 MED-HIGH 66 CFM 132 CFM 67 CFM 120 CFM

MED-LOW 53 CFM 106 CFM 53 CFM 105 CFM

LOW 40 CFM 80 CFM 40 CFM 80 CFM

DEFROST TABLE DEFROST CYCLE

1 FACTORY SET (HRV UNITS) NORMAL (HRV UNITS) 2E

ACTORY SET (HRV UNITS) NORMAL (ERV UNITS)

3 F 4E

XTENDED (HRV UNITS)

XTENDED (ERV UNITS)

RESULT

 The LED will blink RED one time every 3 seconds to indicate the

integrated control is in CFM setup mode (HIGH speed).

 Every 3 seconds, the LED will blink RED the number of times

corresponding to the chosen speed range.

See table below.

SPEED RANGE PRESS ON PUSH BUTTON LED BLINKS RED

HIGH ONCE 1 TIME

1 2 MED-HIGH TWICE 2 TIMES 3 MED-LOW THREE TIMES 3 TIMES

4 LOW FOUR TIMES 4 TIMES

 Press on push button for about 3 seconds to access setting

defrost mode.

 Press on push button twice to set the unit in extended defrost

mode.

 The LED will blink GREEN one time every 3 seconds to indicate

the unit is set in normal defrost mode.

 The LED will blink GREEN twice every 3 seconds to indicate the

unit is in extended defrost mode.

DEFROST TABLE PRESS ON PUSH BUTTON LED BLINKS GREEN

NORMAL (HRV UNITS)ONCE 1 TIME

NOTE: It is possible to change the selection as many

times needed.

2 EXTENDED (HRV UNITS)TWICE 2 TIMES 3 NORMAL (ERV UNITS)THREE TIMES 3 TIMES

4 EXTENDED (ERV UNITS)FOUR TIMES 4 TIMES

 Wait 60 seconds OR press 3 seconds on push button to exit

setting mode.

 The LED will blink and shut off, then light RED (the unit returns

in its booting sequence).

4.4 SETTING EXTENDED DEFROST FOR CONSTRUCTO 1.5V AND 90H-V UNITS

These units are 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 2 seconds of booting sequence, while the integrated control LED is GREEN, press on push button for 3 seconds to set the unit in extended defrost; the LED will blink AMBER to show the unit is in extended defrost mode. After that, the LED will shut off, then light RED (the unit returns in its booting sequence).

Page 14

4. CONTROLS (CONT’D)

4.5 ELECTRICAL CONNECTION TO MAIN CONTROLS

For more convenience, these units can also be controlled using an optional main wall control. NOTES: 1. The integrated control must be turned OFF to use an optional main control.

2. If an optional auxiliary control is used, if activated, this auxiliary control will override the optional main control.

WARNING

Always disconnect the unit before making any connections. Failure in disconnecting power could result in 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 at right, wire A is correctly inserted, but wire B is not.)

4.5.1 E

LECTRICAL CONNECTION TO ALTITUDE (ERV EKO 1.5 AND

HRV EKO 1.5 UNITS ONLY) OR PLATINUM (ERV 90H-V ECM

AND HRV 90H-V ECM UNITS ONLY) MAIN WALL CONTROL

NO C NC I OC OL Y R G B

VE0181

MODE PREF

SET

SMART

4.5.3 ELECTRICAL CONNECTION TO LITE-TOUCH CONSTRUCTO (CONSTRUCTO 1.5V UNIT ONLY) OR LITE-TOUCH BRONZE (90H-V UNIT ONLY) MAIN WALL CONTROL

MAIN WALL CONTROL

LITE-TOUCH CONSTRUCTO

NO C NC I OC OL Y R G B

LITE-TOUCH BRONZE

REAR VIEW

VE0106

4.5.2 ELECTRICAL CONNECTION TO DECO-TOUCH MAIN WALL CONTROL (ALL UNITS*)

NO C NC I OC OL Y R G B

VE0250

* Recirculation mode not available for 90H-V and Constructo 1.5V units.

4.5.4 ELECTRICAL CONNECTION TO CONSTRUCTO (CONSTRUCTO 1.5V UNIT ONLY) OR BRONZE (90H-V UNIT ONLY) MAIN WALL CONTROL

B G

NO C NC I OC OL Y R G B

VE0187

VE0186A

Page 15

4. CONTROLS (CONT’D)

4.6 ELECTRICAL CONNECTION TO OPTIONAL AUXILIARY CONTROLS

4.6.1 ELECTRICAL CONNECTION TO 20/40/60-MINUTE PUSH BUTTON TIMER OR 60-MINUTE CRANK TIMER (ERV EKO 1.5, HRV EKO 1.5, ERV 90H-V ECM AND HRV 90H-V ECM UNITS ONLY)

20/40/60-MINUTE

60-MINUTE

CRANK TIMER

NO C NC I OC OL Y R G B

VE0188A

4.6.2 ELECTRICAL CONNECTION TO DEHUMIDISTAT OR 20-MINUTE LIGHTED PUSH BUTTON TIMER OR 60-MINUTE CRANK TIMER (CONSTRUCTO 1.5V AND 90H-V UNITS ONLY)

PUSH-BUTTON SWITCHES

(5 MAXIMUM)

DEHUMIDISTAT

NOTE: If an optional auxiliary control is

activated and then, the Dehumidistat is being activated, the Dehumidistat

NO C NC I OC OL Y R G B

will override the auxiliary control commands.

VE0267A

Once the control(s) connections have been made, insert the terminal connector on the recessed side of electrical compartment.

NOTE: For information about the operation of the wall controls, refer to the user guide.

VD0206

60-MINUTE

CRANK TIMER

TERMINAL

CONNECTOR

BOTTOM OF THE UNIT

20-MINUTE

PUSH-BUTTON SWITCHES

(5 MAXIMUM)

Page 16

5. ELECTRICAL CONNECTION TO THE FURNACE

WARNING

Never connect a 120-volt AC circuit to the terminals of the furnace interlock (standard wiring). Only use the low voltage class 2 circuit of the furnace blower control.

For a furnace connected to a cooling system:

On some older thermostats, energizing the “R” and “G” terminals at the furnace has the effect of energizing “Y” at the thermostat and thereby turning on the cooling system. If you identify this type of thermostat, you must use the

STANDARD FURNACE INTERLOCK WIRING ALTERNATE FURNACE INTERLOCK WIRING

NO C NC I OC OL Y R G B

ALTERNATE FURNACE INTERLOCK WIRING.

NO C NC I OC OL Y R G B

FOUR WIRES

TWO WIRES

heating only

FURNACE

24-VOLT

TERMINAL BLOCK

VE0108A

W R G

THERMOSTAT

TERMINALS

TWO WIRES

COOLING SYSTEM

UNIT TERMINAL CONNECTOR

4 WIRES

2 WIRES

heating only

G C

FURNACE

24-VOLT

TERMINAL BLOCK

W R G Y

THERMOSTAT

TERMINAL

wiring nuts

2 WIRES

UNIT TERMINAL CONNECTOR

COOLING SYSTEM

Page 17

6. WIRING DIAGRAMS

WARNING

• Risk of electric shocks. Before performing any maintenance or servicing, always disconnect the unit from its power source.

• This product is equipped with an overload protection (fuse). A blown fuse indicates an overload or a short-circuit situation. If the fuse blows, unplug the product and check the polarity and voltage output from the outlet. Replace the fuse as per the servicing instructions (refer to wiring diagram for proper fuse rating) and verify the product. If the replaced fuse blows, it may be a short-circuit and the product must be discarded or returned to an authorized service center for examination and/or repair.

From

supply motor

From

Neutral

J10-1J10-2

120V, 60Hz

JU1

LOGIC DIAGRAM

321

HI MED

Line

120 V, 60Hz

Exhaust

J5-2

fan motor

J5-1

J5-3

J9-2

J9-1

J9-3

to A1-J17

J7-2

J9-4

J7-1

Supply

fan motor

J4-1

J4-2

J4-3

to A1-J15

J6-2

J6-1

J2-5

J12-5

J2-4

J12-4

J2-3

J12-3

Damper motor

J3-2

J3-1

J2-2

J2-1

J12-2

J12-1

J8-1

J8-2

J8-4

9.5 V

24 V

class 2

J11-2

J11-1

J8-5

class 2

Furnace

blower

interlock

J14-3

J14-1

K2K4K5

(optional; see

notes 3 & 5)

J15

12345

J14-2

J17

12345

CPU

exhaust moto

Override

switch

(optional; see

J14-4

J14-5

notes 3 & 4)

J14-6

J14-7

Field wiring

remote

control (see

J14-8

J14-9

J14-10

notes 3 & 4)

WIRING DIAGRAM

Defrost

DAMPER

ELECTRONIC ASSEMBLY

1234512

Damper motor

temperature sensor

t˚

Class 2

to A1-J12

low voltage

24 V

class 2

62 V

83 V

120 V

Field wiring

remote control

(see notes 3 & 4)

From

exhaust motor

From

factory wiring

supply motor

9.5 V

class 2

57 V

neutral

YRG

nc W R BL Y

control cable

nc W R BL Y

control cable

12345

J17

987654321

12345

J15

J11

123

12312

Override

switch

(optional; see

12345

A2-J2

MED HI

JU1

83 V

62 V

120 V

notes 3 & 4)

J14

J13

J12

1234

See note 1

12123

57 V

neutral

J14-1: NO

J14-2: COM

J14-3: nc

(optional; see notes 3 & 5)

Furnace blower interlock

BDM

ELECTRONIC ASSEMBLY

J10

120 V, 60 Hz

Line voltage factory wiring

COLOR CODE

Class 2 low voltage factory wiring

Class 2 low voltage field wiring

BBLACK

BL BLUE

O ORANGE

BR BROWN

GGREEN

NOTES

WHITE

RRED

Y YELLOW

nc no connection

codes, ordinances and regulations.

be replaced, use the same equivalent wire.

(3A, 3AG Type).

1. Use specified UL listed/CSA Certified line fuse

2. If any of the original wire, as supplied, must

3. Field wiring must comply with applicable

4. Remote controls (class 2 circuit) available,

see instruction manual.

5. Furnace fan circuit must be class 2 circuit only.

VE0184A

ERV EKO 1.5, HRV EKO 1.5,

ERV 90H-V ECM & HRV 90H-V ECM UNITS

Power cable

Control cable

Exhaust fan motor

W R BL Y

to A1-J17

Power cable

Supply fan motor

Control cable

W R BL Y

to A1-J15

Critical characteristic.

Page 18

6. WIRING DIAGRAMS (CONT’D)

WARNING

• Risk of electric shocks. Before performing any maintenance or servicing, always disconnect the unit from its power source.

LOGIC DIAGRAM

NOTES

Neutral

J10-1J10-2

120V, 60Hz

Ref

HI MED

Line

120 V, 60Hz

Ref

321

JU1

B HI

J5-2

capacitor

Exhaust fan motor

J5-1

J5-3

J9-4

J9-2

J9-1

J9-3

MED

MED-HI

DAMPER

ELECTRONIC ASSEMBLY

1234512

MED-LO

J4-2

Supply fan motor

J7-2

J7-1

J4-1

J4-3

R LO

Defrost

Field wiring

temperature sensor

t˚

capacitor

Supply fan motor

J6-2

J6-1

YRG

remote control

(see notes 3 & 4)

J2-4

J2-5

J12-5

J12-4

Override

switch

987654321

J13

ICP

J11

J12

Damper motor

J3-2

J3-1

J2-2

J2-1

J2-3

J11-2

J12-2

J12-1

J12-3

J8-1

J8-2

J8-4

9.5 V

24 V

class 2

83 V

68 V

120 V

100 V

notes 3 & 4)

(optional; see

J14

12345

Ref

Furnace

blower

interlock

(optional; see

notes 3, 5)

J14-3

J14-1

J14-2

J11-1

K2K4K5

J8-5

class 2

62 V

neutral

J14-1: NO

J14-2: COM

Furnace blower interlock

ASSEMBLY

ELECTRONIC

J14-3: nc

(optional; see notes 3 & 5)

Line voltage factory wiring

Class 2 low voltage factory wiring

Override

switch

J14-4

CPU

(optional; see

notes 3, 4)

J14-5

J14-6

notes 3, 4)

Field wiring

remote

control (see

J14-7

J14-8

J14-9

J14-10

COLOR CODE

B BLACK

BL BLUE

BN BROWN

G GREEN

O ORANGE

P PURPLE

Class 2 low voltage field wiring

R RED

W WHITE

Y YELLOW

nc no connection

capacitor

1234

See note 1

12123

motor

capacitor

Supply fan

J10

motor

Supply fan

120 V, 60 Hz

123

JU1

FAN MOTORS SPEED SELECTION

same time. If you do change REF 1 and REF 2 you

will inverse fan motor speeds.

CAUTION: You can change REF 1 or REF 2, but not both at the

Factory shipped

REF 1 ORG REF 1 RED REF2 FAN SPEEDS CFM MAX

ORG to ORG RED to RED HI (120V) & LO (62V) 160

ORG to ORG RED to RED MED-HI (100V) & LO (62V) 140

VE0086A

WIRING DIAGRAM

CONSTRUCTO 1.5V & 90H-V UNITS

(3A, 3AG Type).

2. If any of the original wire, as supplied, must

4. Remote controls (class 2 circuit) available,

see instruction manual.

3. Field wiring must comply with applicable

5. Furnace fan circuit must be class 2 circuit only.

codes, ordinances and regulations.

be replaced, use the same equivalent wire.

Use specified UL listed/CSA Certified line fuse

Damper motor

Critical characteristic.

120 V

100 V

24 V

class 2

83 V

9.5 V

68 V

class 2

62 V

neutral

12345

Ref

Exhaust fan

123

12312

motor

JU1

MED HI

BBB

motor

Exhaust fan

Page 19

7. BALANCING THE UNIT

7.1 WHAT YO U NEED TO BALANCE THE UNIT

• A magnehelic gauge capable of measuring 0 to 1 inch of water (0 to 249 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.

DAMPER

BALANCING

TOOL

• Turn off all exhaust devices such as range hood, dryer and bathroom fans.

• Make sure the balancing dampers are fully open by setting both damper balancing tools completely vertical.

• Make sure all filters are clean (if it is not the first time the unit is balanced).

VR0029

7.3 BALANCING PROCEDURE

1. Set the unit to high speed. NOTE: 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 (the ones with

arrows, see insets in illustration at right).

Be sure to connect the tubes to their appropriate high/low fittings. If the gauge

drops below zero, reverse the tubing connections.

4. Note the CFM value from balancing chart on unit.

5. Repeat steps 3 and 4, but to FRESH air flow pressure taps.

6. Match highest CFM value to lowest by adjusting the balancing damper

corresponding to the highest value.

See example below:

STALE AIR FLOW

FLOW FRESH EXHAUST

CFM IN. W.G. IN. W.G.

120 0.71 0.73 125 130 0.63 0.67

0.67 0.70

EXHAUST READING VALUES

135 0.59 0.64 140 0.55 0.61

FRESH READING VALUES

145 0.51 0.58 150 0.47 0.55

In that case, there is 150 CFM in FRESH air and 125 CFM in EXHAUST air. Then, adjust (close) the FRESH air balancing damper

until the FRESH air flow matchs the EXHAUST air flow: 125 CFM (0.67 in. w.g.) with magnehelic gauge connected to FRESH air flow pressure taps).

7. Secure both dampers in place with a fastening screw (included).

8. Write the required air flow information on a label and affix 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.

VP0017

FRESH AIR FLOW

FASTENING SCREW

VR0030

Page 20

8. SERVICE PARTS

REPLACEMENT PARTS AND REPAIR

In order to ensure your ventilation unit remains in good working condition, you must use the manufacturer genuine replacement parts only. The manufacturer 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. The manufacturer recommends to contact a certified service depot for all replacement parts and repairs.

VL0036

ITEM DESCRIPTION QTY.

VAL PORT 2 -- 18206 18206 18206 18206 18206

OUBLE COLLAR OVAL PORT 2* 18207 18207 18207 18207 18207 18207

XHAUST DAMPER SPRING 1 18221 18221 18221 18221 18221 18221

OTOR ASSEMBLY 2 18198 18198 18197 18198 18198 18197

ALANCING TOOL 2 18220 18220 18220 18220 18220 18220

EFROST DAMPER 1 18200 18200 18200 18200 18200 18200

DAMPER SYSTEM ASS’Y

(INCLUDING ITEM 6)

ORE FILTER 2 18204 18205 18204 18204 18205 18204

EAT RECOVERY CORE 1 -- 18202 18203 -- 18202 18203

NERGY RECOVERY CORE 1 18042 -- -- 18042 -- --

OOR ASSEMBLY 1 18044 18211 18209 18208 18208 18208

10 D

1 18199 18199 18199 18199 18199 18199

ERV

EKO 1.5

11 PCB 1 18216 18216 18215 18216 18216 18215

RANSFORMER 1 18218 18218 18219 18218 18218 18219

12 T

APACITOR 5 μF 2 -- -- 16042 -- -- 16042

13 C 14 THERMISTOR KIT (NOT SHOWN) 1 15749 15749 15749 15749 15749 15749

ARDWARE KIT (NOT SHOWN) 1 08917 08304 08304 08917 08304 08304

15 H 16 PCB C

ONNECTOR (NOT SHOWN) 1 16416 16416 16416 16416 16416 16416

HRV

EKO 1.5

CONSTRUCTO

1.5V

ERV 90H-V

ECM

HRV 90H-V

ECM

90H-V

* Quantity of 4 for ERV EKO 1.5 units only.

Page 21

9. TROUBLESHOOTING

If the unit does not work properly, reset the unit by unplugging it for one minute and then replug it. If it still not working properly, refer to table below.

If the integrated control LED of the unit is flashing, this means the unit sensors detected a problem. See the table below to know where the problem occurs on the unit.

LED COLOR ERROR TYPE ACTION UNIT STATUS

LED flashes GREEN Thermistor error Replace thermistor Unit works but will defrost frequently LED flashes AMBER Damper error Go to point 5 Unit does not work LED flashes RED Motor error Go to point 8 Unit does not work

PROBLEMS POSSIBLE CAUSES YOU SOULD TRY THIS

The error code E1 is displayed on Altitude,

Platinum or Deco-Touch wall control screen.

There is no outside temperature displayed on Altitude or Platinum wall

control screen .

Altitude, Platinum or Deco-Touch wall control

screen alternates between normal display and E3.

Unit does not work. • The circuit board may be defective.

The damper actuator does not work.

The wall control does not work.

• The wires may be in reverse position.

• The wires may be broken.

• The wires may have a bad connection.

• The unit thermistor may be defective.

• The Altitude, Platinum or Deco-Touch wall control may be defective.

• The fuse may be defective.

• The damper actuator or the integrated damper mechanism may be defective.

• The circuit board or the transformer may be defective.

• 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.

• Ensure the wires are correctly connected.

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.

• Replace the unit thermistor.

• Replace the Altitude, Platinum or Deco-Touch wall control.

• Unplug the unit. Disconnect the main control and the optional(s) control(s) (if need be). Jump G and B terminals.

NO C NC I OC OL Y R G B

VE0097

Plug the unit back and wait about 10 seconds. If the motors run on high speed and the damper opens, the circuit board is not defective.

• Check if fuse F1 is blown. In that case, replace fuse F1 as per product nameplate.

• 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 multimeter and check for 24 VAC on J12-1 and J12-2 (in electrical compartment). If there is 24 VAC, replace the entire damper assembly.

NOTE: It is normal to experience a small delay (7-8 seconds)

before detecting the 24 VAC signal at starting-up. This signal will stay during 17-18 seconds before disappearing.

• If there is no 24 VAC, check for 24 VAC between J8-1 and J8-2. If there is 24 VAC, replace the circuit board, and if there is no 24 VAC, change the transformer.

• 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.

Page 22

9. TROUBLESHOOTING (CONT’D)

PROBLEMS POSSIBLE CAUSES YOU SOULD TRY THIS

The Dehumidistat does not work OR the 20-minute push button timer does not work OR

its indicator light does not stay on.

The supply and/or exhaust motor do not work.

• The wires may be in reverse postion.

• The Dehumidistat or push button may be defective.

• The fuse may be defective.

• The jumper JU1 may be in wrong position or missing.

• Jumper J11 may be missing.

• Ensure that the color coded wires have been connected to their appropriate places.

• Jump the OL and OC terminals. If the unit switch to high speed, remove the Dehumidistat or push button and test it right beside the unit using another shorter wire. If it works here, change the wire. If it doesn’t, change the Dehumidistat or the push button.

• Check if fuse F1 is blown. In that case, replace fuse F1 as per product nameplate.

• Make sure that jumper is properly located as per wiring diagram in Section 6 Wiring diagrams.

• Make sure there is a jumper on connector J11.

NO C NC I OC OL Y R G B

VE0098

The defrost cycle does not work (the fresh air duct is frozen) OR the

fresh air distributed is very cold.

The integrated control

push button does not work.

For ERV and HRV EKO 1.5 and ERV and HRV 90H-V ECM units only.

• The circuit board or transformer may be defective.

• The motor(s) may be defective.

For Constructo 1.5V and 90H-V units only.

• The circuit board or transformer may be defective.

• The motor(s) or capacitor(s) may be defective.

• 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.

• The 30-second boot sequence is not completed.

NOTE: Refer to the Section 6 Wiring diagrams.

• Press on the integrated control push button until the unit turn on high speed (the LED will light GREEN). Using a multimeter, check the voltage on J4-1 and J4-2 (for supply motor), and on J5-1 and J5-2 (for exhaust motor). If both readings are 120 VAC, the circuit board is not defective. If one or both readings are not 120 VAC, change the transformer. If no voltage is present, change the circuit board.

• If the voltage reading is 120 VAC on J4 or J5, change the defective motor.

NOTE: Refer to the FAN MOTOR SPEED SELECTION

table in Section 6 Wiring Diagrams to know what the voltage reading must be.

• 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 J4-1 and J4-2 (for supply motor), and on J5-1 and J5-2 (for exhaust motor). 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 J4-1 and J4-2 (for supply motor), and on J5-1 and J5-2 (for exhaust motor). 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 transformer. If no voltage is present, change the circuit board.

• Using a multimeter, check the ohms value on each motor connectors. For BLUE and BLACK motor wires, the right value is ± 49 ohms. For BLUE and BROWN motor wires, the right value is ± 79 ohms. For BROWN and BLACK motor wires, the right value is ± 126 ohms. If the ohms values are the same, the motor is not defective. Replace the motor capacitor.

• Remove the ice.

• Inspect these parts and replace if necessary.

• See point 5.

• See Section 4.1 Units Booting Sequence.