INSTALLATION INSTRUCTIONS
HRV90H AND ERV90HC
RESIDENTIAL USE ONLY
READ AND SAVE THESE INSTRUCTIONS
06010C rev. E
Model no.: HRV90HT
(HRV with ports on top)
Model no.: HRV90HS
(HRV with ports on sides)
Model no.: ERV90HCT
(ERV with ports on top)
Model no.: ERV90HCS
(ERV with ports on sides)
VB0082
VB0080 VB0079
VB0081
ABOUT THIS MANUAL
Because of the large amount of models covered by this publication, the illustrations are typical ones. Some details of your unit may be
slightly different than the ones shown.
Please take note that this manual uses the following symbols to emphasize particular information:
NOTE: Indicates supplementary information needed to fully complete an instruction.
We welcome any suggestions you may have concerning this manual and/or the unit, and we would appreciate hearing your comments
on ways to better serve you. Please contact us by phone at 1-800-558-1711.
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. Before servicing or cleaning the unit, disconnect power cord from electrical outlet.
3. This unit is not designed to provide combustion and/or dilution air for fuel-burning appliances.
4. When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden utilities.
5. Do not use this unit with any solid-state speed control device other than main optional wall control VT4W, and no other optional
auxiliary wall controls than 60-minute crank timer and/or 20-minute lighted push button and/or Humidity Control.
6. This unit must be grounded. The power supply cord has a 3-prong grounding plug for your personal safety. It must be plugged into a
mating 3-prong grounding receptacle, grounded in accordance with the national electrical code and local codes and ordinances. Do
not remove the ground prong. Do not use an extension cord.
7. Do not install in a cooking area or connect directly to any appliances.
8. Do not use to exhaust hazardous or explosive materials and vapors.
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.
5. Do not run any air ducts directly above or closer than 2 ft (0.61 m) to any furnace or its supply plenum, boiler, or other heat producing
appliance. If a duct has to be connected to the furnace return plenum, it must be connected not closer than 9’10” (3 m) from this
plenum connection to the furnace.
6. The ductwork is intended to be installed in compliance with all local and national codes that are applicable.
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.
1.0 TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
1.1 AIR DISTRIBUTION (NORMAL OPERATION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.2 A
IR DISTRIBUTION (RECIRCULATION OR DEFROST MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.3 S
PECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.4 P
ERFORMANCE CHARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.5 D
IMENSIONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.6 C
ONTROLS AND LINKAGE POSSIBILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.0 TYPICAL INSTALLATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
2.1 FULLY
DUCTED SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..7
2.2 CENTRAL DRAW POINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.3 S
IMPLIFIED INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.4 INSTALLATION FOR ERV U
NITS ONLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.0 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-16
3.1 I
NSPECT THE C
ONTENT OF THE BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.2 L
OCATING THE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.3 U
NIT
PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.4 H
OW TO HANG THE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.5 PLANNING OF THE DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.6 I
NSTALLING THE DUCTWORK AND REGISTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-12
3.7 CONNECTING THE DUCT TO THE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.8 I
NSTALLING THE
TANDEM® T
RANSITION KIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-15
3.9 I
NSTALLING
2 EXTERIOR HOODS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
4.0 CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17-19
4.1 I
NTEGRATED C
ONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
4.2 E
LECTRICAL CONNECTION TO OPTIONAL WALL CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17-18
4.3 VT4W O
PTIONAL MAIN WALL CONTROL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
4.4 O
PTIONAL AUXILIARY WALL CONTROLS OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
5.0 E
LECTRICAL C
ONNECTION TO THE FURNACE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
6.0 W
IRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
7.0 BALANCING THE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
8.0 CONNECTING THE DRAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
9.0 M
AINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-24
9.1 BIANNUAL MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-24
9.2 A
NNUAL MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
10.0 SERVICE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
11.0 T
ROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
TABLE OF CONTENTS
- 3 -
HRV ERV
1. TECHNICAL DATA
1.1 AIR DISTRIBUTION (NORMAL OPERATION)
HRV ERV
1.2 A
IR DISTRIBUTION (RECIRCULATION OR DEFROST MODE)
Celcius (°C)
-5 to -27
-27 and less
Fahrenheit (°F)
23 to -17
-17 and less
Defrosting (min.)
9
10
Operation time (min.)
between each defrost cycle
23
22
Outside Temperature HRV and ERV Defrost Cycles
- 4 -
EXHAUST AIR
-
FROM BUILDING
FRESH AIR
TO BUILDING
EXHAUST AIR-
FROM BUILDING
FILTERED AIR
TO BUILDING
E
XHAUST AIR
-
FROM BUILDING
F
ILTERED AIR
TO BUILDING
EXHAUST AIR
FROM BUILDING
FRESH AIR
TO BUILDING
FRESH AIR
FROM OUTSIDE
E
XHAUST AIR
TO OUTSIDE
FRESH AIR
FROM OUTSIDE
EXHAUST AIR
TO OUTSIDE
1.3 SPECIFICATIONS
Weight
Oval Ports
Drain Diameter
42 lb (19 kg)
Fit 5” (127 mm) ducts
1/2” (12 mm)
45 lb (20.4 kg)
Fit 5” (127 mm) ducts
N/A
Installation Chains, springs and hooks (provided with the unit).
Motor Speeds High and low speed
Electrical supply 120 V, 60 Hz 120 V, 60 Hz
Power Consumption 150 watts 160 watts
Model HRV ERV
VF0038
VF0036
VF0039
VF0037
1.4.1 HRV UNITS
1. TECHNICAL DATA (CONT’D)
1.4 P
ERFORMANCE CHARTS
Ventilation Performance
NOTE: A
LL SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
.
SUPPLY POWER SENSIBLE APPARENT
LATENTRECOVERY/
TEMPERATURE NET AIR FLOW CONSUMEDRECOVERY SENSIBLE MOISTURE
WATTS EFFICIENCY
EFFECTIVENESS
TRANSFER
68
82
116
110
66
65
59
55
78
76
68
81
0.07
0.04
0.04
0.08
Not tested
-
C°
0
0
0
-25
+35
F°
+32
+32
+32
-13
+95
l/s
23
30
44
30
-
-
cfm
48
63
93
63
-
-
m3/h
82
108
157
108
-
-
COOLING
HEATING
TOTAL RECOVERY EFFICIENCY
EXT STATIC NET SUPPLY GROSS AIR FLOW
PRESSURE AIR FLOW SUPPLY EXHAUST
Pa
25
50
75
100
125
150
175
200
in.w.g.
.1
.2
.3
.4
.5
.6
.7
.8
l/s
52
50
48
45
43
41
38
35
cfm
110
106
101
96
92
87
81
75
m3/h
187
180
173
162
155
148
137
126
l/s
52
50
48
46
43
41
38
36
cfm
110
106
102
97
92
87
81
76
m3/h
187
180
173
166
155
148
137
130
l/s
58
55
53
50
49
45
43
40
cfm
122
116
113
107
103
96
91
85
m3/h
205
198
191
180
173
162
155
144
Energy Performance
1.4.2 ERV UNITS
Ventilation Performance
NOTE: A
LL SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
.
SUPPLY POWER SENSIBLE APPARENT
LATENTRECOVERY/
TEMPERATURE NET AIR FLOW CONSUMEDRECOVERY SENSIBLE MOISTURE
WATTS EFFICIENCY
EFFECTIVENESS
TRANSFER
70
85
127
102
67
65
61
56
82
77
73
78
0.60
0.54
0.49
0.50
49
68
C°
0
0
0
-25
+35
F°
+32
+32
+32
-13
+95
l/s
22
30
45
30
23
-
cfm
46
64
91
64
46
-
m
3
/h
79
108
155
108
166
-
COOLING
HEATING
TOTAL RECOVERY EFFICIENCY
EXT STATIC NET SUPPLY GROSS AIR FLOW
PRESSURE AIR FLOW SUPPLY EXHAUST
Pa
25
50
75
100
125
150
175
200
in.w.g.
.1
.2
.3
.4
.5
.6
.7
.8
l/s
55
53
50
49
46
44
42
39
cfm
116
113
107
104
98
94
88
82
m3/h
197
192
182
177
166
160
150
139
l/s
56
55
52
50
48
46
43
40
cfm
119
116
111
107
101
97
91
84
m3/h
202
197
189
182
172
165
155
143
l/s
59
57
54
53
50
47
45
42
cfm
125
121
115
112
105
100
95
90
m3/h
212
206
195
190
178
170
161
153
Energy Performance
- 5 -
1. TECHNICAL DATA (CONT’D)
1.5 DIMENSIONS
1.5.1 D
IMENSIONS FOR PORTS ON
SIDES UNITS
HRV
ERV
1.5.2 DIMENSIONS FOR PORTS ON TOP UNITS
HRV ERV
1.6 C
ONTROLS AND LINKAGE POSSIBILITY
M
AIN CONTROL
• VT4W
A
UXILIARY CONTROLS
• 20-MINUTE PUSH BUTTON TIMER
• 60-MINUTE CRANK TIMER
• H
UMIDITY CONTROL
L
INKAGE POSSIBILITY
• AIR HANDLER INTERLOCK
(USED WITH FORCED AIR SYSTEM)
- 6 -
4’’ (102 mm)
6’’ (152 mm)
VK0055
4’’ (102 mm)
6’’ (152 mm)
1
27 16” (688 mm)
9
22
16” (574 mm)
2” (51 mm)
1
27 16” (688 mm)
9
16” (574 mm)
22
13¾”
(349 mm)
13
19 16” (503 mm)
13
19 16” (503 mm)
3
12 16”
(310 mm)
3
12 16”
(310 mm)
VK0057
13
19 16”
(503 mm)
9
22
16” (574 mm)
23 ¾” (603 mm)
16 ¼”
(413 mm)
VK0056
2” (51 mm)
4’’ (102 mm)
6’’ (152 mm)
2½”
(64 mm)
3
16”
12
(310 mm)
13
19 16”
(503 mm)
VK0058
9
22
16” (574 mm)
23 ¾” (603 mm)
4’’ (102 mm)
6’’ (152 mm)
2½”
(64 mm)
3
16”
12
(310 mm)
2.3 SIMPLIFIED INSTALLATION (CONNECTION TO A FORCED AIR SYSTEM)
2. TYPICAL INSTALLATIONS
Installations may vary according to the type of unit and the ports configuration (top or sides). Use the following illustrations as guidelines
to help you decide on how the unit will be installed.
All the units should be hung from the joists.
In every case, bathroom fans and a range hood should be used to exhaust stale air. Also, for homes with more than one level, we
recommend one exhaust register at the highest level.
There are 3 installation methods: Fully ducted, Central Draw Point and Simplified Installation.
NOTE: An electrical outlet has to be available within 3 feet of the unit.
2.1 FULLY DUCTED SYSTEM (PRIMARILY FOR HOMES WITH RADIANT HOT WATER OR ELECTRIC BASEBOARD HEATING.)
2.2 C
ENTRAL DRAW POINT (CONNECTION TO A FORCED AIR SYSTEM.)
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 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.
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.
NOTE: It is possible to connect the outside fresh air duct to the supply
duct of the forced air unit.To do so, the Automatic fresh air bypass
must be used (part #: 15391). (See installation sheet included with
the Automatic fresh air bypass).
To avoid cross-contamination and achieve the highest efficiencies, the
Automatic fresh air bypass (part #15391) must be installed. If not, the
f
orced air system blower must always be ON.
NOTE: Home with multiple forced air systems should have one unit on
each system.
- 7 -
VH0055
VH0056
VH0057
2. TYPICAL INSTALLATIONS (CONT’D)
The ERV units are created to meet specific requirements related to geographical locations. Take a look at the map below; the shaded
area shows the limits where the ERV unit can be installed. However, there is no geographical limitation for installing an HRV unit.
NOTE:The ERV unit is designed to assist in the management of humidity introduced into the home.
During cooling season, in extreme humidity conditions, the use of additional dehumidification unit may be required to quickly
remove all excess moisture. During heating season, in extreme dryness conditions, the use of a humidifier may be required if
the indoor air is still too dry.
ANCHORAGE
WHITEHORSE
JUNEAU
HAY RIVER
YELLOWKNIFE
Prince Rupert
GRANDE PRAIRIE
FORT MCMURRAY
FORT SMITH
EDMONTON
PRINCE ALBERT
SASKATOON
JASPER
KAMLOOPS
CALGARY
PENTICTON
REGINA
LETHBRIDGE
HELENA
VICTORIA
OLYMPIA
WINNIPEG
SALEM
BOISE
BISMARCK
SALT LAKE CITY
SAULT STE MARIE
ST. PAUL
DES MOINES
MADISON
TIMMINS
HARRISBURG
SACRAMENTO
DENVER
TOPEKA
SUDBURY
TORON TO
DETROIT
INDIANAPOLIS
SANTA FE
SPRINGFIELD
OKLAHOMA CITY
PHOENIX
COLUMBUS
NASHVILLE
ATLANTA
BATON ROUGE
AUSTIN
COLUMBIA
RALEIGH
WASHINGTON
OTTAWA
NORTH BAY
VAL-DOR
CHICOUTIMI
HARTFORD
CHIBOUGAMAU
MONTRÉAL
QUEBEC
BOSTON
GOOSE BAY
LABRADOR CITY
SEPT-ILES
MATANE
GASPÉ
BATHURST
ST-JOHN
HALIFAX
CHARLOTTETOWN
ST JOHN’S
RENO
2.4 INSTALLATION FOR ERV UNITS ONLY
2.4.1 GEOGRAPHICAL LOCATION
All 3 types of installations can be used in the attic (Fully ducted system, Central Draw Point or Simplified). The example shown below is
a Simplified installation (connection to a forced air system).
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.
NOTE: It is possible to connect the outside fresh air duct to the supply
duct of the forced air unit. To do so, the Automatic fresh air
bypass must be used (part #: 15205). (See installation sheet
included with the Automatic fresh air bypass).
To avoid cross-contamination and achieve the highest efficiencies, the
Automatic fresh air bypass (part #15205) must be installed. If not, the
forced air system blower must always be ON.
NOTE: Home with multiple forced air systems should have 1 unit on each system.
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 0°C (32°F).
CAUTION
2.4.2 ERV U
NITS ATTIC INSTALLATION
- 8 -
VN0006
VH0058
- 9 -
3. INSTALLATION
3
.1 INSPECT THE CONTENTS OF THE BOX
• Inspect the exterior of the unit for shipping damage. Ensure that there is no damage to the door, door latches, power cord, etc.
• Remove and discard the 2 transport brackets (A) and open the door. Discard the styrofoam
fillers (ERV units only) and remove the hardware kit from the unit. Inspect the interior of the unit
for damage. Ensure that heat or energy recovery core, core filters, insulation, dampers, etc. are
all intact.
3.2 LOCATING THE UNIT
Choose an appropriate location for the unit.
• Within an area of the house where the ambient temperature is between 10°C (50°F) and 65°C (149°F) (basement, furnace room,
closet, etc.).
• 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).
• For HRV units ONLY: Close to a drain. If no drain is close by, use a pail to collect run-off.
3.3 UNIT PREPARATION
Both HRV and ERV units are equipped with 2 ports having integrated balancing damper. Turn the thumb
screw (A) clockwise to manually open and adjust the damper (B).
HRV
UNITS
: Set the Fresh air to building port to wide open position, and adjust the Exhaust air to outside
port to 3rd notch.
NOTE: If the unit need to be balanced, adjust the damper of the Exhaust air to outside port to wide open
position. See
Section 7
.
ERV
UNITS
: Set both Fresh air to building port and Exhaust air to outside port to wide open position.
The door latches location can be changed from sides to front of the unit, according to the installation needs.
To do so, turn the unit upside down. Open the latches an unscrew them from the unit. Install the latches on their new locations.
A
B
Port with integrated balancing
damper - Top view
Latches on sides of the unit
Latches in front of the unit
VO0089
VO0090
VO0094
A
VD0183
VJ0032
VD0176
- 10 -
3. INSTALLATION (CONT’D)
3.5 P
LANNING 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.
3.6 I
NSTALLING THE
DUCTWORK AND REGISTERS
3.6.1 FULLY DUCTED SYSTEM (AS ILLUSTRATED IN 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 f
ar
from the stairway as possible and in such a way that the air circulates in all the lived-in spaces in the house.
• If a register is installed in the kitchen, it must be located at least 4 feet (1.2 m) from the range.
• Install the registers 6 to 12 inches (152 to 305 mm) from the ceiling on an interior wall OR install them in the ceiling.
Fresh air distribution ductwork
• Install the fresh air distribution registers in bedrooms, dining rooms, living room and basement.
• Keep in mind that the fresh air registers must be located as far as possible from the stale air registers.
• Install the registers in the ceiling OR 6 to 12 inches (152 to 305 mm) from the ceiling on an interior wall. The duct lenght should be
at least 15’ (4.6 m). (The fresh air will then flow through the room and mix with room air, ensuring a continuous renewed airflow.)
• If a register must be floor installed, direct the airflow up the wall.
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.
!
3.4 HOW TO HANG THE UNIT
Hang the unit with the 4 chains, hooks and springs
provided.
CAUTION
Make sure the unit is level.
VD0184
VD0185
3. INSTALLATION (CONT’D)
3.6 INSTALLING THE DUCTWORK AND REGISTERS (CONT’D)
3.6.2 C
ENTRAL 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.
Fresh air distribution ductwork
There are 2 methods for connecting the unit to the furnace/air handler:
Method 1: Supply side connection
• Cut an opening into the furnace supply duct at least 18 inches (0.5 m) from the
furnace/air handler.
• Connect this opening to the
Fresh air to building
port of the HRV/ERV (use steel
duct, see figure beside).
• Make sure the HRV/ERV duct form an elbow inside the furnace/air handler ductwork.
• If desired, interlock (synchronize) the furnace/air handler blower operation (see
Section 5).
Method 2: Return side connection
• Cut an opening into the furnace return duct not less than 10 feet (3.1 m) from the
furnace/air handler (A+B).
• Connect this opening to the
Fresh air to building
port of the HRV/ERV
(see figure 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).
WARNING
When performing duct connections, always use approved tools and materials. Respect all corresponding laws and safety
regulations. Please refer to your local building code.
CAUTION
When performing duct connections to the furnace supply duct, this duct must be sized to support the additional airflow
produced by the HRV/ERV. Also, use a steel duct. It is recommended that the HRV/ERV is running when the furnace is in
operation to prevent backdrafting inside HRV/ERV.
!
MINIMUM 18”
(0.5 M
)
A+B=
NOT LESS
THAN
10’ (3.1 M)
STEEL DUCT
- 11 -
VJ0036
VJ0035
A
B
3.6 INSTALLING THE DUCTWORK AND REGISTERS (CONT’D)
3.6.3 S
IMPLIFIED INSTALLATION (AS ILLUSTRATED IN SECTION 2.3)
There are 2 methods for connecting the unit to the furnace/air handler:
Method 1: Supply-return connection Method 2A: Return-return without Method 2B: Return-return with
Automatic fresh air bypass Automatic fresh air bypass
Stale air intake
• Cut an opening into the furnace/air handler return duct not less than 10 feet (3.1 m) from the furnace/air handler (A+B).
• Connect this opening to the
Exhaust air from building
port of the HRV/ERV.
Fresh air distribution
• Same instructions as for Method 1 or Method 2, Section 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: F
or Method 1, it is not essential to synchronize the furnace blower operation with the unit operation, but we recommend it.
3. INSTALLATION (CONT’D)
CAUTION
If using Method 2, unless the optional Automatic fresh air bypass (part #15391) is installed, make sure the furnace/air handler
blower operation is synchronized with the unit operation! See Section 5.
- 12 -
WARNING
When performing duct connections, always use approved tools and materials. Respect all corresponding laws and/or safety
regulations. Please refer to your local building code.
CAUTION
When performing duct connections to the furnace supply duct, unless using the optional Automatic fresh air bypass
(part #15391), this duct must be sized to support the additional airflow produced by the HRV/ERV. Also, use a steel duct. For a
Return-Return installation, installing the optional Automatic fresh air bypass (part #15391) eliminates the obligation to operate
the furnace blower when the HRV/ERV is in operation.
!
A+B= NOT LESS
THAN
10’ (3.1 M)
MINIMUM 18”
(0.5 M)
STEEL DUCT
A+B= NOT LESS
THAN
10’ (3.1 M)
MINIMUM 3’
(0.9 M)
A
B
C
DISTANCE A: MINIMUM 3’ (0.9 M)
B+C= NOT LESS THAN 10’(3.1 M)
A
UTOMATIC FRESH
AIR BYPASS
VJ0037
A
A
B
B
VJ0038
VJ0034
Rigid ducts
Use a small length of flexible duct to connect the rigid duct to the ports in order to avoid vibration transmissions. Use tie-wraps to
perform connections.
3.7 CONNECTING THE DUCTS TO THE UNIT
Insulated flexible ducts
Use the following procedure for connecting the insulated flexible ducts to the port of the unit (
Exhaust air to outside
and
Fresh air from
outside
ports).
CAUTION
Make sure the vapor
barrier on the
insulated ducts
does not tear during
installation to avoid
condensation within
the ducts.
CAUTION
Do not use screws to connect the rigid ducts to the ports.
CAUTION
Make sure the balancing dampers are set to their appropriate position before connecting the ducts to the ports. See Section 3.3.
VJ0040
VJ0041
Pull back the insulation to
expose the flexible duct.
Attach the flexible
duct to the port using
tie wrap.
Pull the vapor barrier
over the insulation
and over the outer
ring of the double collar.
Apply duct tape to the
joint making an airtight
seal. Avoid compressing
the insulation when
pulling the tape tightly
around the joint.
Compressed insulation
loses its R value and
causes water dripping
due to condensation
on the exterior surface
of the duct.
Pull the insulation
over the joint and
tuck in between the
inner and outer rings
of the double collar.
3.8 INSTALLING THE TANDEM® TRANSITION KIT
Use the following procedure for connecting the insulated flexible ducts to the Tandem® transition* (
Exhaust air to outside
and
Fresh air
from outside
).
NOTE: The joist opening needed to install the Tandem® tansition must be
9 3/4” (248 mm) minimum. Also, the maximum height of the Tandem®
transition is 8 3/4” (222 mm). See Tandem® transition end view beside.
If the joist are perpendicular to the ducts, or if the connection to the exterior
hood is in a limited area, your installation will need two exterior hoods
instead of one. In this case, do not use the Tandem® transition kit. See
next Section 3.9 I
NSTALLING 2 EXTERIOR HOODS.
*Patent pending.
- 13 -
3. INSTALLATION (CONT’D)
VJ0039
VJ0043
VJ0042
VD0118
9 3/4"
248 mm
8 3/4"
222 mm
3.8 INSTALLING THE TANDEM® TRANSITION KIT (CONT’D)
3.8.1 C
ONNECTION TO TANDEM® TRANSITION
1. F
or each duct, pull back the insulation to expose the interior flexible duct.
2. Connect the interior flexible duct to the smaller part of the Tandem® transition (5’’ oval) using a tie wrap.
3. Pull the insulation over the joint. Pull the vapor barrier over the insulation.
4. Apply duct tape gently to the joint in order to make an air
tight seal
. See figures below.
3.8.2 A
SSEMBLING
DUAL EXTERIOR HOOD*
Exterior dual hood is coming in separate parts. Using 2 #8 x
3
¼4” screws, assemble the top
metal screen and the plastic grille to the dual exterior hood. Then, slide the bottom metal
screen to the dual exterior hood. See illustration beside.
*Patent pending
3.8.3 L
OCATING THE
D
UAL E
XTERIOR HOOD
The dual exterior hood must be installed at a minimum distance of 18 inches (457 mm) from the
ground. See illustration beside.
3.8.4 C
ONNECTING TANDEM® TRANSITION TO THE DUAL EXTERIOR HOOD
1. Using a jig saw, cut a 6’’ diameter hole in the exterior wall and insert the Tandem®
transition through this hole.
1) Exhaust air to outside duct
3. INSTALLATION (CONT’D)
1
2
3
4
EXHAUST AIR TO OUTSIDE
DUCT ON TOP
WARNING
Make sure this hood is at least 3 feet (0.9 m) away from any of the following:
• High efficiency furnace vent. • Any exhaust from a combustion source.
• Gas meter exhaust, gas barbecue-grill. • Garbage bin and any other source of contamination.
!
1
CAUTION
The Tandem® transition must be inserted in such a way that the
Exhaust air to outside
duct will be located on the top.
- 14 -
VJ0025
VJ0023
VJ0022
VJ0024
VO0024
18''
(457 mm)
VD0083
VD0084
3.8 INSTALLING THE TANDEM® TRANSITION KIT (CONT’D)
3.8.4 C
ONNECTING TANDEM® TRANSITION TO THE DUAL EXTERIOR HOOD (CONT’D)
2. Join the end of the Tandem® transition to the rear of the exterior backplate. Secure
with 2 Xmas tree pins and seal properly with duct tape.
3. Using 4 #8 x 1
1
¼2” screws, mount the the exterior backplate to the exterior wall. Seal the
outline with caulking.
4. Snap the assembled exterior hood on its backplate and secure with 2 provided screws
(#8 x
3
¼4” long).
3. INSTALLATION (CONT’D)
CAUTION
The exterior backplate must be installed with the word «TOP» pointing upward.
Xmas tree pin
screw
- 15 -
VD0085
VD0086
VD0087
3. INSTALLATION (CONT’D)
3.9 INSTALLING 2 EXTERIOR HOODS
Choose an appropriate location to install the exterior hoods:
• There must be a minimum distance of 6 feet (1.8 m) between the hoods to avoid cross-contamination
• There must be a minimum distance of 18 inches (457 mm) from the ground
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 below for connecting insulated ducts to the exterior hoods. An ‘’Anti-gust intake hood’’ should be installed in regions where
a lot of snow is expected to fall.
TAPE AND DUCT TIE
OPTIONAL
DUCT LOCATION
EXHAUST HOOD
INTAKE HOOD
18’’
(457 MM)
18’’
(457 MM)
6’’ Ø
(152 MM)
18’’
(457 MM)
6’
(1.8 M)
6’
(1.8 M)
- 16 -
VD0028
4. CONTROLS
4.1 INTEGRATED CONTROL
All units are equipped with an integrated control, located under the unit, in front of the electrical
compartment. Use the push button (1) to control the unit. The LED (2) will then shows on
which mode the unit is in.
1
2
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
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 11 Troubleshooting
on last page for further details.
4.1.1 BOOT SEQUENCE
The unit boot sequence is similar to a personnal computer boot sequence. Each times the unit is plugged after being unplugged, or
after a power failure, the unit will perform a 30-second booting sequence before starting to operate. During the booting sequence, the
integrated control LED will light GREEN or AMBER for 5 seconds, and then will shut off for 2 seconds. After that, the LED will light RED
for the rest of the booting sequence. During this RED light phase, the unit is checking and resetting the motorized damper position.
Once the motorized damper position completely set, the RED light turns off and the booting sequence is done.
NOTE: No command will be taken until the unit is fully booted.
For more convenience, this unit can also be controlled using an optional main wall control.
NOTES: 1.The integrated control must be turned OFF to use an optional main control.
2. If an optional auxiliary control is used, if activated, this auxiliary control will override the optional main control.
4.2 ELECTRICAL CONNECTION TO OPTIONAL WALL 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 not wire B.)
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.
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.
!
A
B
VE0106
- 17 -
No li ght OFF or remote controled
Amber light LOW speed
Green ligh HIGH speed
Blinking light See User Manual
Sans lumière Arrêté ou contrôlé
par contrôle mural
Lumière ambre Basse vitesse
Lumière verte Haute vitesse
Clignotant Voir guide d’utilisation
VD0182
WARNING
Risk of electric shock. Before performing
any maintenance or servicing, always
disconnect the unit from its power source.
CAUTION
Unscrew both screws to open the electrical
compartment. To completely remove, detach
from its retention wire inside.
AVERTISSEMENT
Danger d’électrocution. Débranchez
toujours l’appareil avant d’entreprendre
des travaux d’entretien ou de réparation.
ATTENTION
Dévisser les deux vis pour ouvrir le compartiment
électrique. Pour retirer complètement, le
détacher de son fil de rétention intérieur.
4. CONTROLS (CONT’D)
4.2.1 ELECTRICAL CONNECTION TO VT4W MAIN WALL CONTROL
MAIN WALL
CONTROL
VT4W
REAR VIEW
4.2 ELECTRICAL CONNECTION TO OPTIONAL WALL CONTROLS (CONT’D)
4.2.2 ELECTRICAL C
ONNECTION TO
OPTIONAL AUXILIARY WALL CONTROLS
NOTE: If another optional auxiliary wall control
is activated when the Humidity Control
is installed, this control will override
the Humidity Control commands.
Once the wall control(s) connections have been made, insert the terminal connector in the bottom of the unit, on the electrical
compartment front face.
4.3 VT4W OPTIONAL MAIN WALL CONTROL OPERATION
TERMINAL
CONNECTOR
COLOR MODE SUGGESTED USE
GREEN INTERMITTENT SELECT THIS MODE WHEN YOU ARE AWAY FROM THE HOUSE
FOR A FEW DAYS
.ALSO, WHEN YOU DEEM THE INSIDE AIR IS
TOO DRY IN HEATING SEASON, OR TOO HUMID DURING
COOLING SEASON
.IN THIS MODE, THE UNIT IS OFF FOR
40 MINUTES PER HOUR AND VENTILATES AT MINIMUM SPEED
THE REMAINING 20 MINUTES OF THE HOUR.
YELLOW MIN SPEED FOR NORMAL DAILY OPERATION.
VENTILATION
RED MAX SPEED FOR EXCESS POLLUTANTS AND HUMIDITY
VENTILATION (PARTIES, ODORS, SMOKE, ETC.).
- 18 -
NO C NC I OC OL Y R G B
G
Y
VE0101A
B
MAIN WALL CONTROL
LITE-TOUCH BRONZE
and
SIMPLE TOUCH BRONZE
REAR VIEW
BG
OC
NO C NC I O C OL Y R G B
HUMIDITY CONTROL
H
E
V
U
I
T
A
L
E
R
%
20%
HUMIDITY
25%
CONTROL
30%
C
O
M
F
O
T
R
40%
60-MINUTE
CRANK TIMER
M
I
D
I
T
Y
O
F
F
70%
60%
E
N
O
Z
50%
20-MINUTED LIGHTED PUSH BUTTON
(5 MAXIMUM)
VE0110A
No li ght OFF or remote controled
Amber light LOW speed
Green ligh HIGH speed
Blinking light See User Manual
Sans lumière Arrêté ou contrôlé
par contrôle mural
Lumière ambre Basse vitesse
Lumière verte Haute vitesse
Clignotant Voir guide d’utilisation
VD0182
WARNING
Risk of electric shock. Before performing
any maintenance or servicing, always
disconnect the unit from its power source.
CAUTION
Unscrew both screws to open the electrical
compartment. To completely remove, detach
from its retention wire inside.
AVERTISSEMENT
Danger d’électrocution. Débranchez
toujours l’appareil avant d’entreprendre
des travaux d’entretien ou de réparation.
ATTENTION
Dévisser les deux vis pour ouvrir le compartiment
électrique. Pour retirer complètement, le
détacher de son fil de rétention intérieur.
VC0070
MAX
MIN
INTERMITTENT
VT4W
4. CONTROLS (CONT’D)
4.4 OPTIONAL AUXILIARY WALL CONTROLS OPERATION
4.4.1 20-MINUTE LIGHTED PUSH-BUTTON TIMER
Set the push-button timer to ON. The fan motors will then operate at high speed for 20 minutes and the indicator
will light up.
To stop activation, push one time; the unit will then get back to previous selection.
4.4.2 60-MINUTE CRANK
TIMER
This control makes the system operate at high speed for periods varying from 10 to 60 minutes.
4.4.3 HUMIDITY CONTROL
Setting during the fall, winter and spring months:
Adjust knob to the desired maximum humidity level.
Setting during summer:
Adjust knob to the OFF positon.
CAUTION
Do not select a humidity level below 30%. This could lead to excessive dryness in the air
causing discomfort for the occupants.
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 ALTERNATE FURNACE INTERLOCK WIRING.
STANDARD FURNACE INTERLOCK WIRING ALTERNATE FURNACE INTERLOCK WIRING
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.
!
- 19 -
HUMIDITY
CONTROL
VC0084
VC0017
25%
ON
TURN
OFF
PAST
20
10
20
30
60
40
50
H
E
V
U
I
M
T
A
I
D
L
E
I
T
R
Y
%
20%
30%
O
F
F
70%
60%
C
E
O
N
O
M
Z
F
O
T
R
50%
40%
VC0085
NO C NC I OC OL Y R G B
UNIT TERMINAL CONNECTOR
COOLING SYSTEM
FOUR
WIRES
TWO WIRES
heating only
W
R
G
C
Y
FURNACE
24-VOLT
TERMINAL BLOCK
VE0108A
W R G
THERMOSTAT
Y
TERMINALS
TWO WIRES
NO C NC I OC OL Y R G B
COOLING SYSTEM
UNIT TERMINAL CONNECTOR
4 WIRES
2 WIRES
heating only
W
R
R
G
C
Y
Y
FURNACE
24-VOLT
TERMINAL BLOCK
W R G Y
wiring
nuts
THERMOSTAT
TERMINAL
NO
NC
C
2 WIRES
6. WIRING DIAGRAM
WARNING
Risk of electrical shocks. Before performing any maintenance or servicing, always disconnect the unit from its power source.
!
- 20 -
Neutral
J10-1 J10-2
120V, 60Hz
J5-2
capacitor
Exhaust fan motor
Exhaust fan motor
J5-1
J5-3
J7-2
A1
K1
LOGIC DIAGRAM
Line
K2
nc
F1
J9-1
J9-2
J9-3
J7-1
J9-4
J4-2
capacitor
Supply fan motor
Supply fan motor
J4-1
J4-3
J6-2
J6-1
K3
A2
J2-4
J2-5
J12-5
J12-4
Damper motor
J3-2
J2-3
J2-2
J12-2
J12-3
K4
J3-1
J2-1
J12-1
Door interlock switch
J11-2
J11-1
Furnace
blower
J14-3
J14-1
K5
K2
K4
interlock
(optional; see
notes 3, 5)
J14-2
K5
K1
Override
switch
J14-4
K3
(optional; see
notes 3, 4)
Field wiring
J14-5
J14-6
J14-7
J14-8
remote
control (see
J14-9
J14-10
notes 3, 4)
CPU
J8-1
J8-2
J8-4
J8-5
120 V, 60Hz
9.5 V
class 2
24 V
class 2
90 V
68 V
120 V
neutral
Override
switch
notes 3 & 4)
9 8 7 6 5 4 3 2 1
10
J13
ICP
J11
J12
1 2
1 2 3 4 5
J8
1 2 3 1 2
(optional; see
J14
1 2 3 4 5
See note 6
1 2
1 2 3 4
J9
See note 1
1 2 1 2 3
J7
J6
J14-1 : NO
J14-2 : COM
J14-3 : nc
(optional; see notes 3, 5)
Furnace blower interlock
A1
ASSEMBLY
ELECTRONIC
W
BK
J10
F1
J4
COLOR CODE
Critical characteristic.
G
W1
120 V, 60 Hz
NOTES
BK BLACK
BL BLUE
BN BROWN
G GREEN
R RED
W WHITE
Y YELLOW
nc no connection
Y R G
R1
temperature sensor
t˚
reed switch)
(magnetically actuated
24 V
class 2
90 V
68 V
120 V
R
BL
BK
Field wiring
W W
9.5 V
Defrost
DAMPER
ELECTRONIC ASSEMBLY
J1
A2
1 2 3 4 5 1 2
J3
1 2
J2
S1
BK
BK
Door interlock switch
WIRING DIAGRAM
M3
T1
Damper motor
B
remote control
(see notes 3 & 4)
BN
BN
Y
Y
class 2
neutral
W
J5
BK
C2
motor
capacitor
BN
BL
BK
G
M2
motor
Supply fan
ordinances and regulations.
use the same equivalent wire.
Certified line fuse.
1. For continued fire protection. Use specified UL listed/CSA
2. If any of the original wire, as supplied, must be replaced,
3. Field wiring must comply with applicable codes,
4. Remote controls (class 2 circuit) available,
see instruction manual.
5. Furnace fan circuit must be class 2 circuit only.
6. To obtain medium speed, interchange
BLUE and RED transformer wires at J9.
The medium speed is for special use only.
VE0130A
BN
BL
BK
BK
BK
BK
Line voltage factory wiring
Class 2 low voltage factory wiring
Class 2 low voltage field wiring
G
M1
motor
Exhaust fan
Exhaust fan
C1
motor
capacitor
Supply fan
7.1 WHAT YOU NEED TO BALANCE THE UNIT
• A magnehelic gauge capable of measuring 0 to 0.5 inch of water (0 to 125 Pa) and
2 plastic tubes.
• The balancing chart located on the unit door.
7.2 PRELIMINARY STAGES TO BALANCE THE UNIT
• Seal all the unit ductwork with tape. Close all windows and doors.
• Turn off all exhaust devices such as range hood, dryer and bathroom fans.
• Make sure the integrated balancing dampers are fully open
. Turn the thumb screw (A) clockwise
to manually open the dampers. Both are located on the Exhaust air to outside port and on Fresh
air to building port.
• Make sure all filters are clean (if it is not the first time you balance the unit).
7.3 B
ALANCING PROCEDURE
1. Set the unit to high speed.
Make sure that the furnace/air handler blower is ON if the installation is in any way connected to
the ductwork of the cold air return. If not, leave furnace/air handler blower OFF. If the outside
temperature is below 0°C / 32°F, make sure the unit is not running in defrost while balancing.
(By waiting 10 minutes after plugging the unit in, you are assured that the unit is not in a
defrost cycle.).
2. Place the magnehelic gauge on a level surface and adjust it to zero.
3. Connect tubing from gauge to EXHAUST air flow pressure taps (see diagram beside).
Be sure to connect the tubes to their appropriate
high/low
fittings. If the gauge drops below
zero, reverse the tubing connections.
NOTE: It is suggested to start with the exhaust air flow reading because the exhaust has
typically more restriction than the fresh air, especially in cases of fully ducted
installations or source point ventilation. Place the magnehelic gauge upright and
level. Record equivalent AIR FLOW of the reading according to the balancing chart.
4. Move tubing to FRESH air flow pressure taps (see diagram). Adjust the fresh air balancing damper until the fresh air flow is
approximately the same as the EXHAUST air flow. If fresh air flow is less than exhaust air flow, then go back and adjust the e
xhaust
balancing damper to equal the fresh air flow.
5. Secure both dampers thumb screw in place with tape.
6. Write the required air flow information on a label and stick it near the unit for future reference (date, maximum speed air flows, your
name, phone number and business address).
NOTE: The unit is considered balanced even if there is a difference of ±10 cfm (or ± 5 l/s or 17 m
3
/h) between the two air flows.
Fresh air flow
Balancing
Chart
Exhaust air flow
7. BALANCING THE UNIT
To avoid balancing, the difference between stale air ducts total lenght and fresh air ducts total lenght must not exceed 50 ft. However,
even if the stale air ducts and fresh air ducts lenghts are almost equal, your local building codes may require balancing the unit.
If the unit does not need to be balanced, shut all the pressure taps (located on the unit door) with the small plastic plugs included in the
hardware kit.
A
Port with integrated balancing
damper - Top view
- 21 -
VP0009
VJ0032
1 12 12 11
1 12 12 11
3 13 33 23
1 12 12 11
1 12 12 11
3 13 33 23
VP0015
8. CONNECTING THE DRAIN (HRV UNITS ONLY)
To drain
In order to keep the drain pan intact, hand
tighten the 2 plastic drain fittings to the unit
door using the gaskets and nuts as shown.
Cut 2 sections of plastic tubing, about 12”
(305 mm) long and attach them to each
drain fitting. Join the 2 short sections to the
«T» junction and main tube as shown.
Make a water trap loop in the tube to prevent
the unit from drawing unpleasant odors from
the drain source. Make sure this loop is
situated BELOW the «T» as shown.This will
prevent water from being drawn back up into
the unit in case of negative pressure. Run
the tube to the floor drain or to an alternative
drain pipe or pail. Be sure there is a slight
slope for the run-off.
Tie-wrap
From the inner side of the unit door, using the
provided drain tube, punch out both drain
holes (A).
VD0181
A
- 22 -
VO0091
VO0092
VO0093
3. Lift both foam filters bracket (1) and remove the foam filters from the core. While holding
the core, rotate the 2 core retainers (2) and slide out the core from the unit.
2. Unlatch the door and open it. Clean the inner side of the door with a damp cloth, then wipe with a dry
one. Disengage the door from its hinge by sliding it from left to right and set aside.
9. MAINTENANCE
WARNING
Risk of electrical shocks. Before performing any maintenance or servicing, always disconnect the unit from its power source.
!
1. Unplug the unit.
9.1SEMI-ANNUAL MAINTENANCE
Since this guide covers both HRV and ERV units, top and side ports, the illustrations shown in the maintenance procedures are typical.
The following procedures applies for both HRV and ERV units.
Refer to pictures below to identify the inner parts of your unit.
1
3
3
4
2
2
1
3
3
4
1) HRV core 3) Foam filter brackets
2) Core retainers 4) Foam core filters
1) ERV core 3) Foam filter brackets
2) Core retainers 4) Foam core filters
VB0078
VB0077
2
2
WARNING
Be careful before opening the door; water or small debris could fall out. For HRV unit, always wait one minute after
disconnecting the unit before opening the door in order to allow water to drain out from the unit.
!
VD0179
WARNING
Always hold the core when rotating the 2 core retainers; failure to do so will cause the core to fall out.
!
1
1
2
VD0177
- 23 -
VD0005
9. MAINTENANCE (CONT’D)
9.1 S
EMI-ANNUAL MAINTENANCE (CONT’D)
4. Clean the inside walls of the unit with a clean damp cloth, then wipe with a clean dry one.
5. Wash the 2 core filters under hot water with mild soap. Rinse thoroughly and let dry completely before reinstalling on the core.
6. Remove the dust on the core using a vacuum cleaner and a soft brush attachment.
7. Slide the core in the unit. Secure the core by rotating both core retainers to their initial
positions.
NOTE: Once the core reinstalled in the unit, the arrows (A) on its sticker label must be
pointing towards the unit motors.
8. Reinstall both foam filters and secure them to the core by pulling down the 2 foam filter brackets. Reinstall the door.
9. Close the door and plug the unit.
NOTE: The unit will return to its previous setting after a 30-second delay for boot sequence.
9.2 ANNUAL MAINTENANCE
Do the same operations as the Semi-Annual Maintenance (
Section 9.1
).Then, clean the exterior hood(s).
WARNING
Once the core reinstalled in the unit, always rotate both core retainers to their initial position; failure to do so will cause the
core to fall out.
!
VD0178
VB0078
A
- 24 -
- 25 -
10. SERVICE PARTS
ITEM DESCRIPTION PART NUMBER HRV90HS HRV90HT ERV90HCS ERV90HCT
(PORTS ON SIDES)(PORTS ON TOP)(PORTS ON SIDES)(PORTS ON TOP)
1OVAL PORT (FITS 5” DIAMETER DUCTS) 16040 1 1 1 1
2D
OOR LATCH WITH SCREWS 16035 2 2 2 2
3OVAL PORT WITH INTEGRATED BALANCING DAMPER 16041 2 2 2 2
4MOTOR & WHEEL ASS’Y (MOTOR CAPACITOR INCLUDED) 16024 2 2 2 2
5*
C
APACITOR 5 µF 16042 2 2 2 2
CAPACITOR 7.5 µF 16027 2 2 2 2
6ELECTRONIC BOARD 16038 1 1 1 1
7ERV FOAM FILTER 16031 N/A N/A 2 2
8ERV CORE (WITH 2 FILTERS) 16037 N/A N/A 1 1
9D
RAIN CONNECTOR KIT 03203 1 1 N/A N/A
10 DOOR ASS’Y 16096 1 1 1 1
11 HRV CORE (WITH 2 FILTERS) 16044 1 1 N/A N/A
12 HRV FOAM FILTER 16032 2 2 N/A N/A
13 MOTORIZED DAMPER PORT ASS’Y 16029 1 1 1 1
14** T
RANSFORMER 16567 1 1 1 1
1
2
3
3
12
11
13
4
7
8
9
4
5
6
10
*PLEASE CHECK CAPACITOR VALUE SHOWN ON CAPACITOR LABEL BEFORE ORDERING.
** PART NOT SHOWN.
VL0019
11. TROUBLESHOOTING
Problems Possible causes You should try this
1. Unit does not work. •The circuit board may be defective. •Unplug the unit. Disconnect the main
control and the auxiliary control(s)
(if need be). Jump G and B terminals.
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.
2. The damper actuator • The damper actuator or the integrated •Unplug the unit. Disconnect the main control and the optional control(s)
does not work. damper port mechanism may be defective. (if need be). Wait 10 seconds and plug the unit back. Check if the damper
opens. If not, use a multimeter and check for 24V AC on J12-1 and J12-2
(in electrical compartment). If there is 24V AC, replace the entire port assembly.
NOTE: It is normal to experience a small delay (7-8 seconds) before
detecting the 24V AC signal at starting-up. This signal will stay
during 17-18 seconds before disappearing.
•The circuit board may be defective. •If there is no 24V AC, replace the circuit board.
3. The wall control does not •The wires may be in reverse position. •Ensure that the color coded wires have been connected to their
work OR the indicators flash. appropriate places.
•The wires may be broken. •Inspect every wire and replace any that are damaged.
•The wire in the wall OR the wall •Remove the wall control and test it right beside the unit using another
control may be defective. shorter wire. If the wall control works there, change the wire. If it does
not, change the wall control.
4. The Humidity Control does •The wires may be in reverse position. •Ensure that the color coded wires have been connected to their appropriate places.
not work OR the 20-minute •The Humidity Control or push button •Jump the OL and OC terminals.If the
push-button timer does not may be defective. unit switch to high speed, remove the
work OR its indicator light Humidity Control or push button and
does not stay on. test it right beside the unit using
beside the unit using another
shorter wire. If it works here, change
the wire. If it doesn’t, change the Humidity Control or the push button.
5. The supply and/or exhaust •The circuit board may be defective. •Press on the integrated control push button until the unit turn on low
motor do not work. 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). The reading must be ± 68 V AC. Then set the unit on high
speed by pressing on the integrated control 1 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). The
reading must be ± 120 V AC. If all the readings correspond to the right
voltage values, the circuit board is not defective. If one or both readings
are different, change the circuit board.
•The motor(s) may be defective. •Using a multimeter, check the ohms value on each motor connectors. Blac
k
motors values: For BLUE and BLACK motor wires, the right value is
± 55 ohms. For BLUE and BROWN motor wires, the right value is ± 35 ohms.
For BROWN and BLACK motor wires, the right value is ± 89 ohms.Alumin
um
motors values: For BLUE and BLACK motor wires, the right value is ± 51 ohms.
For BLUE and BROWN motor wires, the right value is ± 47 ohms. For BROWN
and BLACK motor wires, the right value is ± 98 ohms.If the ohm values
are the same, the motor is not defective. Replace the motor capacitor.
6. The defrost cycle does not work • Ice deposits may be hindering •Remove the ice.
(the fresh air duct is frozen OR the damper operation.
the fresh air distributed
is very cold. •The damper rod or the port •Inspect these parts and replace if necessary.
damper itself may be broken.
•The damper actuator or circuit board •See point 2.
may be defective.
7. The integrated control •The 30-second boot sequence • See
Section 4.1.1 Boot Sequence
push button does not work. is not completed.
- 26 -
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 on the unit the problem occurs.
LED flashes GREEN. • Thermistor error. Replace the entire port assembly (fresh air from outside port).
LED flashes AMBER. • Damper error. Go to Point 6.
LED flashes RED. • The door is open and the unit is not unplugged. Close the door and press once on the integrated control
push button to reset the unit.
• Exhaust motor error. Go to Point 5.
NO C NC I OC OL Y R G B
VE0097
NO C NC I OC OL Y R G B
VE0098
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