Installation_guide_EKO_1.5_HRV_CONSTRUCTO_1.5V_08300D (2)RESIDENTIAL USE ONLY
READ AND SAVE THESE INSTRUCTIONS
08300 rev. D
THISUNITHASASPECIALSTART-UP
PROCEDURE, REFERTOPAGE 12.
THISUNITHASASPECIALSTART-UP
PROCEDURE, REFERTOPAGE 12.
THISUNITHASASPECIALSTART-UP
PROCEDURE, REFERTOPAGE 12.
THISUNITHASASPECIALSTART-UP
PROCEDURE, REFERTOPAGE 12.
! !
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.
VB0119
VENMAR AVS
ERV EKO 1.5
HRV EKO 1.5
CONSTRUCTO 1.5V
vänEE
ERV 90H-V ECM
HRV 90H-V ECM
90H-V
INSTALLATION GUIDE
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:
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.
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.
- 2-
!
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:
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.
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).
WARNING
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.
UNIT MAIN CONTROL AUXILIARY CONTROL
ERV EKO 1.5, HRV EKO 1.5 ALTITUDE 20/40/60-MINUTEPUSH-BUTTONTIMERAND 60-MINUTECRANKTIMER
ERV 90H-V ECM, HRV 90H-V ECM PLATINUM 20/40/60-MINUTEPUSH-BUTTONTIMERAND 60-MINUTECRANKTIMER
CONSTRUCTO 1.5V LITE-TOUCH CONSTRUCTO
OR CONSTRUCTO
20-MINUTELIGHTEDPUSH-BUTTONTIMER,
DEHUMIDISTATAND 60-MINUTECRANKTIMER
90H-V LITE-TOUCHOR BRONZE 20-MINUTELIGHTEDPUSH-BUTTONTIMER,
HUMIDITY CONTROLAND 60-MINUTECRANKTIMER
1.TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.1AIR DISTRIBUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..4
1.2DEFROST CYCLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.3DIMENSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2TYPICAL INSTALLATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1FULLY DUCTED SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..5
2.2CENTRAL DRAW POINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.3SIMPLIFIED INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.4ATTIC INSTALLATIONFOR ERV EKO 1.5 ONLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-11
3.1INSPECTTHE CONTENTOFTHE BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..6
3.2UNIT DOOR(S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.3LOCATINGTHE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.4PLANNINGOFTHE DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.5CALCULATING DUCT SIZE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.6INSTALLINGTHE DUCTWORKAND REGISTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9
3.7CONNECTINGTHE DUCTSTOTHE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.8INSTALLING TWO EXTERIOR HOODS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.9CONNECTINGTHE DRAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4.CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-15
4.1UNITS BOOTING SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.2INTEGRATED CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.3SPEEDAND DEFROST SETTINGSFOR ERV EKO 1.5, HRV EKO 1.5, ERV 90H-V ECM AND HRV 90H-V ECM UNITS . . . . . . . . .13
4.4SETTING EXTENDED DEFROSTFOR CONSTRUCTO 1.5V AND 90H-V UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4.5ELECTRICAL CONNECTIONTO MAIN CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4.6ELECTRICAL CONNECTIONTO OPTIONAL AUXILIARY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
5.ELECTRICAL CONNECTIONTOTHEFURNACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
6.WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17-18
7.BALANCINGTHEUNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
7.1WHAT YOU NEEDTO BALANCETHE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
7.2PRELIMINARY STAGESTO BALANCETHE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
7.3BALANCING PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
8.SERVICE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
9.TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21-22
TABLE OF CONTENTS
- 3-
1.TECHNICAL DATA
1.1AIR DISTRIBUTION
1.2DEFROST CYCLES
NORMAL OPERATION DEFROSTOR RECIRCULATION
VF0045 VF0046
STALEAIR
TOOUTSIDE
STALEAIR
FROMBUILDING STALEAIR
FROMBUILDING
FILTEREDAIR
TOBUILDING
FRESHAIR
TOBUILDING
FRESHAIR
FROMOUTSIDE
1.3DIMENSIONS
24 9/16”
(624 mm)
22 ½”
(572 mm)
14 1/16”
(358 mm)
14 15/16”
(380 mm)
18 ¼”
(464 mm)
2 ¹/16”
(53 mm)
23 9/16”
(599 mm)
3 13/16”
(97 mm)
7 7/16”
(189 mm)
VK0066A
NOTE: Every port fits 6” round duct.
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.
- 4-
HRV EKO 1.5 AND
HRV 90H-V ECM UNITS
CONSTRUCTO1.5V
AND 90H-V UNITS
OUTSIDE TEMPERATURE DEFROST CYCLES (MINUTES)EXTENDED DEFROST CYCLES (MIN.)EXTENDED DEFROST CYCLES (MIN.)
°C °F DEFROSTING OPERATIONBETWEEN
EACHDEFROSTCYCLE DEFROSTING
OPERATION
BETWEENEACH
DEFROSTCYCLE
DEFROSTING
OPERATION
BETWEENEACH
DEFROSTCYCLE
-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
2.3SIMPLIFIED INSTALLATION (CONNECTIONTOAFORCEDAIRSYSTEM)
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.
2.1FULLY DUCTED SYSTEM (PRIMARILYFORHOMESWITHRADIANTHOTWATERORELECTRICBASEBOARDHEATING)
2.2CENTRAL DRAW POINT (CONNECTIONTOAFORCEDAIRSYSTEM)
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.
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.
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.
- 5-
VH0071
VH0072
VH0073
2.TYPICAL INSTALLATIONS (CONT’D)
2.4ATTIC 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).
CAUTION
Due to the potential temperature difference between the attic and the rest of the house, all unit ducts must be insulated.
CAUTION
The attic temperature must always be above 10°C (50°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
3.1INSPECTTHE CONTENTOFTHE BOX
Inspect the exterior of the unit for shipping damage. Ensure that there is no damage to the door, ports, power cord, etc.
3.2UNIT 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.
VO0149
A B
1 2
3
3.3LOCATINGTHE 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.
Hang the unit with the four chains and springs provided.
See illustration beside.
CAUTION
Make sure the unit is level.VD0205
- 6 -
3.INSTALLATION (CONT’D)
NOTE:Examples 3.5.1 and 3.5.2 use imperial units. The same calculation applies to metric units.
3.5.1Example 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 beside.)
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:
180cfm. 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.
3.5.2Example of a design for a fully ducted system with a unit having a high speed performance of 160 cfm.
VI0016
END
BRANCHES
5” Ø,
70 CFM
MAINBRANCH
6ӯ, 140 CFM
VI0017
4”4”
4” Ø 47 cfm
5” Ø 93 cfm
5” Ø 86 cfm
5” Ø 67 cfm
6” Ø 160 cfm 6” Ø 160 cfm
5” Ø 62 cfm
4” Ø
46 cfm
5” Ø
74 cfm
4” Ø
37 cfm
4” Ø 24 cfm
4”
4”
4”
5”
5”
5”
5”
6”6”
4”
4”
- 7 -
3.4PLANNINGOFTHE 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.
3.5CALCULATING DUCTSIZE
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/SOR68 M³/H)60 CFM (28 L/SOR102 M³/H)
5” Ø (127 MM)75 CFM (35 L/SOR127 M³/H)110 CFM (52 L/SOR187 M³/H)
6” Ø (152 MM)120 CFM (57 L/SOR204 M³/H)180 CFM (85 L/SOR306 M³/H)
3.INSTALLATION (CONT’D)
3.6INSTALLINGTHE DUCTWORKAND REGISTERS
3.6.1 FULLY DUCTED SYSTEM (ASILLUSTRATEDIN SECTION 2.1)
Stale air exhaust ductwork
•Install the stale air exhaust registers where the contaminants are produced: kitchen, living room, etc. Position the registers as far
from the stairway as possible and in such a way that the air circulates in all the lived-in spaces in the house.
•If a register is installed in the kitchen, it must be located at least 4 feet (1.2 m) from the range.
•Install the registers 6 to 12 inches (152 to 305 mm) from the ceiling on an interior wall OR install them in the ceiling.
•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.
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.
3.6.2 CENTRAL DRAW POINT SYSTEM (ASILLUSTRATEDIN SECTION 2.2)
Stale air exhaust ductwork
Same as for Fully Ducted System, described on point 3.6.1
Fresh air distribution ductwork
There are 2 methods for connecting the unit to the furnace/air handler:
Method 1: Supply side connection
•Cut an opening into the furnace supply duct at least 18 inches (0.5 m) from the
furnace/air handler.
•Connect this opening to the Fresh air distribution port of the unit (use metal duct,
see figure beside).
•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 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 ELECTRICAL
CONNECTION TO FURNACE).
When performing duct connections, always use approved tools and materials. Respect all corresponding laws and safety
regulations. Please refer to your local building code.
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.
VJ0061
B
A
VJ0062
MINIMUM 18”
(0.5 M)
A+B= NOTLESS
THAN 10’ (3.1 M)
METALDUCT
- 8 -
WARNING0!
WARNING0!
CAUTION
- 9-
3.INSTALLATION (CONT’D)
3.6INSTALLINGTHE DUCTWORKAND REGISTERS (CONT’D)
3.6.3 SIMPLIFIED INSTALLATION (ASILLUSTRATEDIN SECTION 2.3)
There are 2 methods for connecting the unit to the furnace/air handler:
Method 1: Supply-return connectionMethod 2: Return-return
Stale air intake
•Cut an opening into the furnace/air handler return duct not less than 10 feet (3.1 m) from the furnace/air handler (A+B).
•Connect this opening to the Exhaust air from building port of the unit.
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.
WARNING
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.
0 !
VJ0063
A
B
A+B = NOTLESS
THAN 10’ (3.1 M)
MINIMUM 18”
(0.5 M)METALDUCT
B
A
VJ0064
A+B = NOTLESS
THAN 10’ (3.1 M)
MINIMUM 3’
(0.9 M)
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.
NOTE: For Method 1, it is not essential to synchronize the furnace blower operation with the unit operation, but we recommend it.
CAUTION
If using Method 2, make sure the furnace/air handler blower operation is synchronized with the unit operation! See Section 5.
CAUTION
3.INSTALLATION (CONT’D)
- 10-
3.7CONNECTINGTHE DUCTSTOTHE 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).
VJ0067
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.
VJ0066
1
34
2
Make sure the vapor barrier on the insulated ducts does not tear during installation to avoid condensation within the ducts.
COLLARPIN
COLLARPIN
Non-insulated rigid ducts
Use metal screws and duct tape to connect the rigid ducts to the unit
ports.
Non-insulated flexible ducts
Use tie wraps to connect the flexible ducts to the unit ports.
CAUTION
If ducts have to go through an unconditioned space (e.g.: attic), always use insulated ducts.
CAUTION
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.
3.8INSTALLING 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
Make sure the intake hood is at least 6 feet (1.8 m) away
from 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 sources of contamination
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.
3.INSTALLATION (CONT’D)
VD0028
TAPEANDDUCTTIE
OPTIONAL
DUCTLOCATION
EXHAUSTHOOD
INTAKEHOOD
18’’
(457 MM)
18’’
(457 MM)
6’’ Ø
(152 MM)
18’’
(457 MM)6’
(1.8 M)6’
(1.8 M)
3.9CONNECTINGTHE DRAIN
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.
VO0176A
16"
(406 mm)
16"
(406 mm)
VD0232A
± 1”
TIEWRAP
- 11-
NOTE:For ERV units, remove both drain plugs inside the unit
prior to install tubing.
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.
CAUTION
DRAINPLUGS
VD0239
4. CONTROLS
4.2INTEGRATED CONTROL
Use the push button (1) to control the unit. The LED (2) will then show on which mode the
unit is in.
VD0206
1
2Refer to table below to see how to operate the unit using its integrated control.
If a problem occurs during the unit operation, its integrated control LED (2) will blink. The color of the blinking light depends on the type of
error detected. Refer to Section 9 Troubleshooting on page 21 for further details.
NOTE:When using main control, the integrated control must be turned off.
All units are equipped with an integrated control located under the unit, on the recessed side of electrical compartment. Plug the unit.
4.1UNITS 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 AMBERfor 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 CONSTRUCTO 1.5V AND 90H-V
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.
- 12-
BOTTOMOFTHEUNIT
PRESSONPUSHBUTTON LED COLOR RESULTS
ONCE AMBER UNITISON LOWSPEED
TWICE GREEN UNITISON HIGHSPEED
THREETIMES NOLIGHT UNITIS OFF
4.3SPEEDAND DEFROST SETTINGSFOR 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 ECMunits 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:
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.
TOCHANGETHEFACTORYSETTINGS, PROCEEDASFOLLOW:
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 pressing consecutively on push button
the number of times corresponding to the desired speed range.
See table below.
RESULT
The LED will blink RED one time at every 3 seconds to indicate
the integrated control is in CFM setup mode (HIGHspeed).
At every 3 seconds, the LED will blink RED the number of times
corresponding to the chosen speed range.
See table below.
NOTE:It is possible to change the selection as many
times needed.
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.
4.4SETTING EXTENDED DEFROSTFOR 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).
4. CONTROLS (CONT’D)
SPEED RANGE PRESSONPUSHBUTTON LED BLINKS RED
1 HIGH ONCE 1 TIME
2 MED-HIGH TWICE 2 TIMES
3 MED-LOW THREETIMES 3 TIMES
4 LOW FOURTIMES 4 TIMES
NOTE:These CFM values are
approximate, they may vary
according to the installation
static pressure.
SPEED RANGE HRV MIN. SPEED HRV MAX. SPEED ERV MIN. SPEED ERV MAX. SPEED
1 HIGH (FACTORYSET)80 CFM 157 CFM 84 CFM140 CFM
2 MED-HIGH 66 CFM 132 CFM 67 CFM120 CFM
3 MED-LOW 53 CFM 106 CFM 53 CFM105 CFM
4 LOW 40 CFM 80 CFM 40 CFM80 CFM
DEFROSTTABLE DEFROSTCYCLE
1 FACTORY SET NORMAL (HRV UNITS)
2 EXTENDED (HRV UNITS)
3 FACTORY SET NORMAL (ERV UNITS)
4 EXTENDED (ERV UNITS)
NOTE:It is possible to change the selection as many
times needed.
DEFROSTTABLE PRESSONPUSHBUTTON LED BLINKS GREEN
1 NORMAL (HRV UNITS)ONCE 1 TIME
2 EXTENDED (HRV UNITS)TWICE 2 TIMES
3 NORMAL (ERV UNITS)THREETIMES 3 TIMES
4 EXTENDED (ERV UNITS)FOURTIMES 4 TIMES
- 13-
Press on push button for about 3 seconds to acceed setting
defrost mode.
Press on push button twice to set the unit in extended defrost
mode.
The LED will blink GREEN one time at every 3 seconds to
indicate the unit is set in normal defrost mode.
The LED will blink GREEN two times at every 3 seconds to
indicate the unit is in extended defrost mode.
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).
CFM VALUES
4. CONTROLS (CONT’D)
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.
4.5ELECTRICAL CONNECTIONTO MAIN CONTROLS
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 wire B is not.)
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.
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.
A B
VE0106
4.5.1ELECTRICAL CONNECTIONTO ALTITUDE (ERV
EKO 1.5 AND HRV EKO 1.5 UNITSONLY) OR
PLATINUM (ERV 90H-V ECM AND HRV 90H-V ECM
UNITSONLY) MAIN WALL CONTROL
NO C NC I OC OL Y R G B
VE0181
SMARTSETMODEPREF
4.5.2ELECTRICAL CONNECTIONTO LITE-TOUCH CONSTRUCTO
(CONSTRUCTO 1.5V UNITONLY) OR LITE-TOUCH
BRONZE (90H-V UNITONLY) MAIN WALL CONTROL
NO C NC I OC OL Y R G B
B G OC
MAIN WALL CONTROL
LITE-TOUCH CONSTRUCTO
or
LITE-TOUCH BRONZE
REAR VIEW
G B Y
VE0186A
- 14-
WARNING0!
4.5.3ELECTRICAL CONNECTIONTO CONSTRUCTO (CONSTRUCTO 1.5V UNITONLY)
OR BRONZE (90H-V UNITONLY) MAIN WALL CONTROL
NO C NC I OC OL Y R G B
VE0187
4.6.1ELECTRICAL CONNECTIONTO 20/40/60-MINUTE PUSH BUTTON TIMEROR 60-MINUTE CRANK TIMER
(ERV EKO 1.5, HRV EKO 1.5, ERV 90H-V ECM AND HRV 90H-V ECM UNITSONLY)
NO C NC I OC OL Y R G B
20/40/60-MINUTE
PUSH-BUTTON SWITCHES
(5 MAXIMUM)
60-MINUTE
CRANK TIMER
VE0188A
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.
4.6ELECTRICAL CONNECTIONTO OPTIONAL AUXILIARY CONTROLS
NOTE:If an optional auxiliary control is
activated and then, the Dehumidistat
(or Humidity Control) is being activated,
the Dehumidistat (or Humidity Control)
will override the auxiliary control
commands.
NO C NC I OC OL Y R G B
20-MINUTE
PUSH-BUTTON SWITCHES
(5 MAXIMUM)
60-MINUTE
CRANK TIMER
DEHUMIDISTAT or
HUMIDITY CONTROL
VE0189A
4.6.2ELECTRICAL CONNECTIONTO DEHUMIDISTAT (CONSTRUCTO 1.5V UNITONLY), HUMIDITY CONTROL (90H-V UNITONLY),
20-MINUTE LIGHTED PUSH BUTTON TIMEROR 60-MINUTE CRANK TIMER (CONSTRUCTO 1.5V AND 90H-V UNITSONLY)
VD0206
TERMINAL
CONNECTOR
BOTTOMOFTHEUNIT
4. CONTROLS (CONT’D)
- 15-
5.ELECTRICAL CONNECTION TO THE FURNACE
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 ALTERNATEFURNACEINTERLOCKWIRING.
STANDARDFURNACEINTERLOCKWIRINGALTERNATEFURNACEINTERLOCKWIRING
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.
W R G Y
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FURNACE
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TERMINAL BLOCK TWO WIRES COOLING SYSTEM
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VE0108A
- 16-
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to
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- 17-
ER
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9
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U
NI
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S
•Risk of electrical 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 from the outlet. Replace the fuse as per the servicing instructions (follow the marking
of product for the 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.
6.WIRING DIAGRAMS (CONT’D)
WARNING!
Fie
l
d
w
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r
i
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g
re
m
o
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e
c
o
n
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o
l
(see
n
o
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e
s 3 &
4
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12
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2
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see
n
o
t
e
s 3 &
5
)
DA
M
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EL
E
C
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sor
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ace
blo
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in
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al;
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o
t
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s 3, 5
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J1
4
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4
J1
4
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5
J1
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J1
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no
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4
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see
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A2
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NO
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1.
Use
spe
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/
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SA
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d
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I
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any
o
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o
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sa
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qu
iv
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.
3.
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us
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p
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co
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4.
R
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m
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c
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s (
c
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as
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2
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)
availab
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see
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anua
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5.
F
urn
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f
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c
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c
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m
us
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be
c
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as
s
2
c
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o
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S
T
R
U
C
T
O
1.
5
V
&
9
0
H
-
V
U
NI
T
S
•Risk of electrical 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 from the outlet. Replace the fuse as per the servicing instructions (follow the marking
of product for the 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.
- 19-
7.1WHATYOU NEEDTO BALANCETHE 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.
7.2PRELIMINARY STAGESTO BALANCETHE 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 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).
7.3BALANCING 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 EXHAUSTair flow pressure taps (the ones with
arrows, see insets in illustration beside).
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:
In that case, there is 150 CFM in FRESHair 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 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.
VP0017
Fresh air flow
Stale air flow
7.BALANCING THE UNIT
VR0029
VP0009
DAMPER
BALANCINGTOOL
VR0030
FASTENINGSCREW
DÉBIT/FLOW FRAIS/FRESH VICIÉ/EXHAUST
PCM/CFM POD’EAU/IN. W.G. POD’EAU/IN. W.G.
120 0.71 0.73
125 0.67 0.70
130 0.63 0.67
135 0.59 0.64
140 0.55 0.61
145 0.51 0.58
150 0.47 0.55
EXHAUSTREADINGVALUES
FRESHREADINGVALUES
VL0036
8.SERVICE PARTS
1
2
13
3
12
11
4
7
8
9
56
10
- 20-
8
ITEM DESCRIPTION QTY.ERV
EKO 1.5
HRV
EKO 1.5 CONSTRUCTO 1.5V ERV 90H-V
ECM
HRV 90H-V
ECM 90H-V
1 OVAL PORT 2 --18206 18206 18206 18206 18206
2 DOUBLE COLLAR OVAL PORT 2*18207 18207 18207 18207 18207 18207
3 EXHAUST DAMPER SPRING 1 18221 18221 18221 18221 18221 18221
4 MOTOR ASSEMBLY 2 18198 18198 18197 18198 18198 18197
5 BALANCING TOOL 2 18220 18220 18220 18220 18220 18220
6 DEFROST DAMPER 1 18200 18200 18200 18200 18200 18200
7 DAMPER SYSTEM ASS’Y
(INCLUDINGITEM 6)1 18199 18199 18199 18199 18199 18199
8 CORE FILTER 2 18204 18205 18204 18204 18205 18204
9 HEAT RECOVERY CORE 1 --18202 18203 --18202 18203
ENERGY RECOVERY CORE 1 18042 ----18042 ----
10 DOOR ASSEMBLY 1 18044 18211 18209 18208 18208 18208
11 PCB 1 18216 18216 18215 18216 18216 18215
12 TRANSFORMER 1 18218 18218 18219 18218 18218 18219
13 CAPACITOR 5 F 2 ----16042 ----16042
14 THERMISTOR KIT (NOTSHOWN)1 15749 15749 15749 15749 15749 15749
15 HARDWARE KIT (NOTSHOWN)1 08917 08304 08304 08917 08304 08304
16 PCB CONNECTOR (NOTSHOWN)1 16416 16416 16416 16416 16416 16416
*Quantity of 4 for ERV EKO 1.5 units only.
Problems Possible causes You should try this
1 The error code E1 is
displayed on Altitude or
Platinum wall control
screen.
•The wires may be in reverse position.
•The wires may be broken.
•The wires may have a bad
connection.
•Ensure that the color coded wires have been connected to
their appropriate places.
•Inspect every wire and replace any that are damaged.
•Ensure the wires are correctly connected.
2 There is no outside
temperature displayed on
Altitude or Platinum wall
control screen .
•The unit thermistor may
be defective.
•Replace the unit thermistor.
NOTE:At its very start-up or after a power failure, it takes
some minutesbefore the outside temperature
appears on screen. The delay durationdepends 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.
3 Altitude or Platinum wall
control screen alternates
between normal display
and E3.
•The Altitude or Platinum wall control
may be defective.
•Disconnect unit for 1 minute and reconnect it. If problem still
occurs, replace the Altitude or Platinum wall control.
4 Altitude or Platinum wall
control screen alternates
between normal display
and E4.
•The Altitude or Platinum wall control
may be defective.
•Disconnect unit for 1 minute and reconnect it. If problem still
occurs, replace the Altitude or Platinum wall control.
5 Unit does not work.•The circuit board may be defective.
•The fuse may be defective.
•Unplug the unit. Disconnect
the maincontrol and the
optional(s) control(s)(if need
be). Jump G and B terminals.
Plug the unit back and wait about 10seconds. 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.
6 The damper actuator does
not work.
•The damper actuator or the
integrated damper mechanism may
be defective.
•The circuit board or the transformer
may be defective.
•Unplug the unit. Disconnect the main control and the
optional controls(s) (if need be). Wait 10seconds and plug
the unit back. Check if the damper opens. If not, use a
multimeter and check for 24 V AC on J12-1 and J12-2 (in
electrical compartment). If there is 24 V AC, replace the
entire damper assembly.
NOTE:It is normal to experience a small delay
(7-8 seconds) before detecting the 24 V AC signal
at starting-up. This signal will stay during
17-18 seconds before disappearing.
•If there is no 24 V 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.
7 The wall control does not
work.
•The wires may be in reverse
position.
•The wires may be broken.
•The wire in the wall OR the wall
control may be defective.
•Ensure that the color coded wires have been connected to
their appropriate places.
•Inspect every wire and replace any that are damaged.
•Remove the wall control and test it right beside the unit using
anothershorter wire. If the wall control works there, change
the wire. If it does not, change the wall control.
NO C NC I OC OL Y R G B
VE0097
9.TROUBLESHOOTING
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.
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 6 Unit does not work
LED flashes RED Motor error Go to point 9 Unit does not work
- 21-
Problems Possible causes You should try this
8 The Dehumidistat (or
Humidity control) 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 postion.
•The Dehumidistat (or Humidity
control) or push button may be
defective.
•Ensure that the color coded wires have been connected to
their appropriate places.
•Jump the OL and OC
terminals. If theunit 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.
9 The supply and/or exhaust
motor do not work.
•The fuse may be defective.
•The jumper JU1 may be in wrong
position or missing.
•Jumper J11 may be missing.
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.
•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 DIAGRAM.
•Make sure there is a jumper on connector J11.
NOTE: Refer to the Section 6 Wiring diagram.
•Press on the integrated control push button until the unit turn
on high speed (the LED will light GREEN). Using a
multimeter, check the voltageon J4-1 and J4-2 (for supply
motor), and on J5-1 and J5-2 (for exhaust motor). If both
readings are 120V AC, the circuit board is not defective. If
one or both readings are not 120V AC, change the
transformer. If no voltage is present, change the circuit
board.
•If the voltage reading is 120V AC on J4 or J5, change the
defective motor.
NOTE:Refer to the FAN MOTOR SPEED SELECTION
table in Section 6 WIRING DIAGRAM 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 voltageon 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 voltageon 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.
10 The defrost cycle does not
work (the fresh air duct is
frozen) OR the fresh air
distributed is very cold.
•Ice deposits may be hindering the
damper operation.
•The damper rod or the port damper it-
self may be broken.
•The damper actuator or circuit board
may be defective.
•Remove the ice.
•Inspect these parts and replace if necessary.
•See point 6.
11 The integrated control push
button does not work.
•The 30-second boot sequence is not
completed.
•See Section 4.2 Units Booting Sequence.
9.TROUBLESHOOTING (CONT’D)
NO C NC I OC OL Y R G B
VE0098
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