Installer Manual
VENTILATION SYSTEMS
VB0066
Model Numbers
HRV-150
HRV-210
ERV-150
ERV-210
06786-04/12/22
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Table of Contents (cont’d)
8.0 INSTALLATION OF THE CONTROLS ..................................................22
8.1 Dimensions and Specifications ................................................22
8.2 Installation of the Main Control ..........................................22-23
8.3 Electrical Connection to Optional Controls ..............................24
8.4 Electrical Connection to the Furnace ......................................24
9.0 WIRING DIAGRAM ............................................................................25
10.0 AIR FLOW BALANCING................................................................26-27
11.0 OVERALL VERIFICATION ..................................................................28
11.1 Main Controls ..........................................................................28
11.2 Optional Control ......................................................................28
12.0 MAINTENANCE / INSTRUCTIONS FOR USER....................................29
13.0 TROUBLESHOOTING ....................................................................30-31
14.0 WARRANTY ......................................................................................32
15.0 REFERENCES....................................................................................32
About this Manual
This manual uses the following symbols to emphasize particular information:
WARNING
!
010
Identifies an instruction which, if not followed, might cause serious personal injuries including
possibility of death.
CAUTION
Denotes an instruction which, if not followed, may severely damage the unit and/or its
components.
NOTE: Indicates supplementary information needed to fully complete an instruction.
3
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1.0 Service
1.1 3-D DRAWING
4
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1.0 Service (cont’d)
1.2 PARTS ORDERING CHART
150
HRV
150
ERV
210
HRV
210
ERV
No
Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26*
Double collar port #2
Wing nut #10-32
Balancing double collar port
Inlet ring
00866
00874
02256
12913
13504
13507
12645
00886
02418
02419
03117
02420
03132
15770
00887
00672
03096
01825
12643
02253
12620
02021
12459
03124
13046
12895
00866
00874
02256
12913
13555
13507
12645
00886
02418
02419
03117
02420
03136
15770
00887
00672
03096
01825
12643
02253
12620
02021
12459
03124
13046
12895
00866
00874
02256
12913
13556
13507
12645
00886
02418
02419
03117
02420
03133
15770
00887
00672
03097
01825
12649
02253
12620
02021
12459
03124
13046
12895
00866
00874
02256
12913
13506
13507
12645
00886
02418
02419
03117
02420
03137
15770
00887
00672
03097
01825
12649
02253
12620
02021
12459
03124
13046
12895
Motor assembly
Electronic board V99
Square balancing damper
Door latches (latch)
Drain connector
Drain gasket 0.625”DI
Washer 5/8” ID x 1” OD
Nut 5/8-18
Recovery core
Door assembly
Door latches (keeper)
Hinge assembly
Filter
Switch E69 10A
Damper assembly #2
Plastic balancing damper
Damper rod
Double collar port #5
Damper #1
Damper actuator assembly
Electronic box cover
Thermistor kit
* Item 26 not shown.
Please take note that parts not listed are not available; those parts require assembly knowledge that only
manufacturer can guarantee.
TO ORDER PARTS: Contact your local distributor
1.3 Technical Support (for assistance)
For assistance, call on week days, 8:00 AM to 4:30 PM (Cental Standard Time).
Technical Support Department
tel: 1-866-2MAYTAG
5
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2.0 Sizing
These are the two most common methods used to evaluate the ventilation needs of a house:
CSA F326 and Canadian Building Code:
• High speed:
10 cfm per room
20 cfm for the master bedroom and the basement
• Low speed: 40-60% of high speed
ASHRAE Standard 62-2001:
• 0.35 air change per hour
Refer to ventilation code of your area to determine which method to use.
Example:
Second floor
Main floor
Laundry
room
Bedroom
Master
Bedroom
Kitchen
#2
Living room
Family room
Dining room
Bedroom
#3
Bedroom #1
1320 ft2
1320 ft2
Basement
Basement
1320 ft2
VH0021A
CSA F326
ASHRAE Standard 62-2001
Volume of basement
Volume of main floor
Volume of second floor
10560 ft3
Kitchen
(10 cfm)
10560 ft3
10560 ft3
Dining room
Living room
Family room
(10 cfm)
(10 cfm)
(10 cfm)
(20 cfm)
(10 cfm)
(10 cfm)
(10 cfm)
(10 cfm)
(10 cfm)
(10 cfm)
(10 cfm)
(20 cfm)
Total volume
31680 ft3
x .35/h
Master bedroom
Bedroom #1
Bedroom #2
Bedroom #3
Bathroom #1
Bathroom #2
Bathroom #3
Laundry room
Basement
11090 ft3/h
÷ 60 (min/h)
Total
150 cfm
Total
185 cfm
(high speed)
(high speed)
6
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3.0
Unit Type and Defrost Setting vs Geographical Location
a
and/or
Tbside
seZSLETIONCHAR
7
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4.0 Technical Data
4.1 AIR DISTRIBUTION (NORMAL OPERATION)
Applicable to all model numbers.
STALE AIR
TO OUTSIDE
FRESH AIR
FROM
OUTSIDE
FRESH AIR
TO BUILDING
STALE AIR
FROM
BUILDING
VF0013
4.2 AIR DISTRIBUTION (DEFROST MODE)
Defrost Mode 1
Applicable to model numbers:
• HRV-150
• HRV-210
FRESH AIR
TO BUILDING
VF0020
STALE AIR
FROM
BUILDING
Defrost Mode 2
Applicable to model numbers:
• ERV-150
• ERV-210
STALE AIR
TO OUTSIDE
FRESH AIR TO
STALE AIR
FROM
BUILDING
BUILDING
VF0012
For defrost cycles tables, refer to Section 9.0, Wiring Diagram.
8
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4.0 Technical Data (cont’d)
4.3 PERFORMANCE CHARTS
MODEL NUMBER: ERV-150
Electrical requirements: 120 volts, 1.3 Amps
Exhaust Air Transfer Ratio: 0.06
225
200
175
150
125
100
75
VENTILATION PERFORMANCE
External Static Net Supply
Gross Air Flow
Supply Exhaust
Pressure
Air Flow
Pa in. w.g.
l/s
cfm
l/s
cfm
l/s
cfm
25
50
75
0.1
0.2
0.3
81
78
72
67
55
46
36
30
173
165
152
142
117
98
87
83
76
71
59
49
39
32
184
175
162
151
124
104
82
93
86
80
77
67
56
41
24
197
182
169
163
143
118
87
Supply
(l/s)
Exhaust
(l/s)
100 0.4
125 0.5
150 0.6
175 0.7
200 0.8
50
77
63
25
67
51
0
Note: Unit operating at maximum speed.
VG0041
0
25
50
75
100
125
150
Gross Airflow - l/s (0.47 l/s = 1 cfm)
ENERGY PERFORMANCE
Supply
Net
Airflow
Average
Sensible Recovery
Apparent Sensible
Latent Recovery
Temperature
Power
Watts
56
80
126
64
Efficiency
Effectiveness
Moisture Transfer
°C
0
°F
32
32
32
5
l/s
cfm
60
100
137
65
%
71
64
60
56
%
29
47
65
31
79
0.53
0.41
0.36
0.41
HEATING
COOLING
0
73
0
-15
68
81
Total Recovery Efficiency
35
95
28
59
52
45
MODEL NUMBER: ERV-210
225
Electrical requirements: 120 volts, 1.9 Amps
Exhaust Air Transfer Ratio: 0.06
200
175
150
125
100
75
VENTILATION PERFORMANCE
External Static Net Supply
Gross Air Flow
Supply Exhaust
l/s cfm l/s cfm
Pressure
Air Flow
Pa in. w.g.
l/s
cfm
Supply
(l/s)
Exhaust
(l/s)
25
50
75
0.1
0.2
0.3
109 231
107 228
101 214
116 245
114 241
107 227
101 213
128 271
123 260
118 249
110 233
103 217
100 0.4
125 0.5
150 0.6
175 0.7
200 0.8
95
86
79
62
40
201
182
167
132
85
50
91
83
66
43
193
177
140
90
92
81
55
195
172
116
25
0
VG0042
Note: Unit operating at maximum speed.
0
25
50
75
100
125
150
Gross Airflow - l/s (0.47 l/s = 1 cfm)
ENERGY PERFORMANCE
Supply
Net
Airflow
Average
Sensible Recovery
Apparent Sensible
Latent Recovery
Temperature
Power
Watts
93
130
193
122
Efficiency
Effectiveness
Moisture Transfer
°C
0
°F
32
32
32
5
l/s
cfm
110
157
203
110
%
69
64
60
55
%
52
74
96
52
76
0.45
0.38
0.30
0.26
HEATING
COOLING
0
71
0
-15
68
76
Total Recovery Efficiency
35
95
50
106
89
41
9
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4.0 Technical Data (cont’d)
4.3 PERFORMANCE CHARTS (CONT’D)
MODEL NUMBER: HRV-150
Electrical requirements: 120 volts, 1.3 Amps
Exhaust Air Transfer Ratio: 0.05
225
200
175
150
125
100
75
VENTILATION PERFORMANCE
External Static Net Supply
Gross Air Flow
Supply Exhaust
Pressure
Air Flow
Pa in. w.g.
l/s
cfm
l/s
cfm
l/s
cfm
Supply
(l/s)
Exhaust
(l/s)
25
50
75
0.1
0.2
0.3
84
80
77
69
61
46
38
177
169
163
146
130
98
88
84
81
72
65
49
40
186
178
171
153
137
103
85
90
86
81
76
66
52
31
190
182
171
161
139
110
67
100 0.4
125 0.5
150 0.6
175 0.7
50
25
81
Note: Unit operating at maximum speed.
0
VG0039
0
25
50
75
100
125
150
Gross Airflow - l/s (0.47 l/s = 1 cfm)
ENERGY PERFORMANCE
Supply
Net
Airflow
Average
Sensible Recovery
Apparent Sensible
Latent Recovery
Temperature
Power
Watts
54
78
124
62
Efficiency
Effectiveness
Moisture Transfer
°C
0
°F
32
32
32
-13
l/s
cfm
64
97
%
75
67
64
67
%
30
46
65
26
83
-0.03
0.01
-0.02
0.05
HEATING
COOLING
0
74
0
-25
138
55
72
89
Total Recovery Efficiency
Not tested
35
95
MODEL NUMBER: HRV-210
225
Electrical requirements: 120 volts, 1.9 Amps
Exhaust Air Transfer Ratio: 0.042
200
175
150
125
100
75
VENTILATION PERFORMANCE
External Static Net Supply
Gross Air Flow
Supply Exhaust
l/s cfm l/s cfm
Pressure
Air Flow
Pa in. w.g.
l/s
cfm
50
75
0.2
0.3
120 253
118 250
111 235
102 216
124 264
123 262
116 245
106 224
126 268
119 251
114 241
107 226
Supply
(l/s)
Exhaust
(l/s)
100 0.4
125 0.5
150 0.6
175 0.7
200 0.8
50
87
75
57
185
160
120
91
78
59
193
167
124
96
81
57
204
172
121
25
Note: Unit operating at maximum speed.
0
VG0040
0
25
50
75
100
125
150
Gross Airflow - l/s (0.47 L/s = 1 cfm)
ENERGY PERFORMANCE
Supply
Net
Airflow
Average
Sensible Recovery
Apparent Sensible
Latent Recovery
Temperature
Power
Watts
92
128
191
104
Efficiency
Effectiveness
Moisture Transfer
°C
0
°F
32
32
32
-13
l/s
cfm
109
155
215
110
%
70
65
62
60
%
51
73
77
-0.01
-0.02
-0.01
0.05
HEATING
COOLING
0
72
0
-25
102
52
70
94
Total Recovery Efficiency
Not tested
35
95
10
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4.0 Technical Data (cont’d)
4.4 DIMENSIONS
6" (152mm)
13-3/4" (349mm)
30-1/4" (768mm)
Model numbers:
• ERV-150
• HRV-150
20" (508mm)
2.5" (63mm)
VK0040
6" (152mm)
Model numbers:
30-1/4" (768mm)
19" (483mm)
• ERV-210
• HRV-210
20" (508mm)
2.5" (63mm)
VK0039
4.5 CONTROLS AND FURNACE LINK OPTION
Main controls:
Optional control:
Link option:
• Basic Wall Control
• Electronic Wall Control
• 20/40/60-minute push button
• Furnace interlock (use with
forced air systems)
4.6 SPECIFICATIONS
Model numbers
ERV-150, HRV-150
65 lb (30 kg)
ERV-210, HRV-210
73 lb (33 kg)
Weight
Port Diameter
Drain Diameter
Installation
6” (152 mm)
1/2” (12 mm)
6” (152 mm)
1/2” (12 mm)
Chains, springs and hooks (provided with the unit).
High and low speeds factory set (optional increased low speed - BLUE wire).
Motor Speed
Electrical supply
Power Consumption
120 V, 60 Hz
150 Watts
120 V, 60 Hz
225 Watts
11
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5.0 Typical Installation
There are three (3) common installation methods.
5.1 FULLY DUCTED SYSTEM
(Primarily for homes with radiant hot water or
electric baseboard heating. See figure 1.)
Moist, stale air is exhausted from the high
humidity areas in the home, such as bathrooms,
kitchen and laundry room. Fresh air is supplied
to bedrooms and principal living areas.
The use of bathroom fans and a range hood is
suggested to better exhaust stale air.
Homes with more than one level require at least
one exhaust register at the highest level.
See 6.5.1
VH0024
figure 1
for details
5.2 EXHAUST DUCTED SYSTEM (SOURCE POINT VENTILATION)
(For homes with forced air heating. See figure 2.)
Moist, stale air is exhausted from the high
humidity areas in the home, such as bathrooms,
kitchen and laundry room. Fresh air is supplied
to the cold air return or the supply duct of the
furnace.
The use of bathroom fans and a range hood is
suggested to better exhaust stale air.
Homes with more than one level require at least
one exhaust register at the highest level.
NOTE: For this type of installation, it is not
essential that the furnace blower runs
when the unit is in operation, but we
recommend it.
See 6.5.2
for details
VH0025
figure 2
5.3 SIMPLIFIED (VOLUME VENTILATION)
(For homes with forced air heating. See figure 3 or 4.)
Fresh air and exhaust air flow through the furnace ducts wich simplifies the installation.
The use of bathroom fans and a range hood is suggested to better exhaust stale air.
NOTE: For the installation type shown in figure 4, furnace blower should be running when the unit is
in operation.
OR
See 6.5.3
See 6.5.3
figure 3
figure 4
VH0026
VH0027
12
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6.0 Installation
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, door hinges, dampers, duct collars, cabinet, etc.
Inspect the interior of the unit for damage. Ensure that the fan motor assembly, recovery core, insulation,
dampers, damper actuator and drain pan are all intact.
If the unit was damaged during shipping, contact your local distributor. (Claim must be made within
24 hours after delivery.)
Use checklist included with the unit to ensure that no parts are missing.
6.1 ADJUSTING THE DAMPER ROD (FOR ERVS INSTALLED IN WARM REGIONS)
Refer to Section 4.2 and observe the difference in the damper
position at the right in diagrams Defrost Mode 1 and Defrost Mode 2:
for Defrost Mode 1 the damper is completely closed, whereas
for Defrost Mode 2 the damper is half closed. At the factory, all ERVs
are assembled for defrost Mode 2. Therefore, if your installation
is for an ERV in a warm region (zone D as defined in Section 3),
1
the rod must be moved to position 1 (see figure 5).
2
NOTE: Before attempting to change the position of the damper
rod, place the unit on a table for easy access and remove
the recovery core.
VO0015
figure 5
CAUTION
This is a delicate operation: to avoid injury proceed carefully and use the appropriate tools.
6.2 LOCATING AND MOUNTING THE UNIT
Choose an appropriate location for the unit:
•
Within an area of the house where the temperature is above 10°C /
50°F (basement, attic, furnace room, laundry room, etc.).
•
•
Away from living areas (dining room, living room, bedroom), if possible.
So as to provide easy access to the interior cabinet and to
the control panel on the right hand side of the unit.
•
•
•
Close to an exterior wall, so as to limit the length of the insulated
flexible duct to and from the unit.
VD0064
figure 6
Close to a drain. If no drain is close by, use a pail to collect
run-off.
Away from hot chimneys, electrical panel and other fire haz-
ards.
CAUTION
Make sure the unit is level.
•
Allow for a power source (110 V standard outlet).
Hang the unit to ceiling joists with the 4 chains and
springs provided (see figures 6 and 7).
figure 7
VD0038
13
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6.0 Installation (cont’d)
6.3 PLANNING OF THE DUCTWORK
a) Follow the instructions in Section 6.4 below to determine the appropriate duct diameters for your system.
b) Keep it simple. Plan for a minimum number of bends and joints. Keep the length of insulated duct to
a minimum.
c) Do not use wall cavities as ducts. Do not use branch lines smaller than 4” (102 mm) Ø.
d) Do not ventilate crawl spaces or cold rooms. Do not attempt to recover the exhaust air from a dryer or
a range hood. This would cause clogging of the recovery module. Use sheet metal for the kitchen
exhaust duct.
e) Be sure to plan for at least one exhaust register on the highest lived-in level of the house if it has
2 floors or more.
6.4 CALCULATING THE DUCT SIZE
Use the table below to ensure that the ducts you intend to install will be carrying air flows at or
under the recommended values. Avoid installing ducts that will have to carry air flows near the
maximum values and never install a duct if its air flow exceeds the maximum value.
end
Duct
Diameter
Recommended
Air Flow
Maximum
Air Flow
branches
5”ø
4”(102 mm)
5”(127 mm)
40 cfm
75 cfm
19 l/s 68 m3/h 60 cfm
28 l/s 102 m3/h
70 cfm
35 l/s 127 m3/h 110 cfm 52 l/s 187 m3/h
main branch
6”ø 140 cfm
6”(152 mm) 120 cfm 57 l/s 204 m3/h 180 cfm 85 l/s 306 m3/h
7”(178 mm) 185 cfm 87 l/s 314 m3/h 270 cfm 127 l/s 459 m3/h
8”(203 mm) 260 cfm 123 l/s 442 m3/h 380 cfm 179 l/s 645 m3/h
140 cfm
VI0003
NOTE: Examples 6.4.1 and 6.4.2 use imperial measures.
The same calculation applies to metric measures.
figure 8
6.4.1 Example of calculation:
Problem: My installation requires two exhaust registers (one for the kitchen, one for the bathroom).
I will connect these registers to a main duct which will connect to the unit (high speed performance
value of 140 cfm). What size of duct should I use for the main exhaust duct and for the two end
branches leading to the registers? (See figure 8.)
Solution: Simplified method. (For a more detailed method of calculating duct size refer to the
ASHRAE or HRAI HANDBOOK).
Main duct: Table above indicates a 6” Ø duct: recommended air flow: 120 cfm; maximum air flow:
180 cfm. The high speed air flow of 140 cfm is close enough to the recommended value (120) and
far enough away from the maximum value (180). Therefore a 6ӯ duct or larger is an appropriate
choice for the main exhaust duct.
End branches: Each end branch will have to transport an air flow of 70 cfm (140 divided by 2). Table
above indicates a 5ӯ duct: recommended air flow: 75 cfm; maximum air flow: 110 cfm. The high
speed air flow of 70 cfm is close enough to the recommended value (75) and far enough away
from the maximum value (110). Therefore a 5ӯ duct or larger is an appropriate choice for the
2 end branches.
NOTE: A 4ӯ duct would have been too small because the maximum acceptable value for a 4ӯ
duct is 60 cfm.
14
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6.0 Installation (cont’d)
6.4 CALCULATING THE DUCT SIZE (CONT’D)
6.4.2 Example of a design for a fully ducted system for a unit having a high
speed performance of 222 cfm (See figure 9).
4”
4”
5”
4” Ø 42 cfm
4”
5” Ø
64 cfm
4” Ø
42 cfm
5” Ø
65 cfm
6” Ø 96 cfm
6”
4”
6”
6” Ø 84 cfm
6” Ø
129 cfm
6” Ø
6”
6”
7”
7”
93 cfm
6” Ø 138 cfm
7” Ø 222 cfm
VI0004
7” Ø 222 cfm
figure 9
6.5 INSTALLING THE DUCTWORK AND REGISTERS
WARNING
!
010
Never install a stale air exhaust register in a room where a combustion device is, such as a gas
furnace, a gas water heater or a fireplace.
6.5.1 Fully Ducted System (as illustrated in Section 5.1)
Stale air exhaust ductwork:
•
Install registers in areas where contaminants are produced: kitchen, bathrooms,
laundry room, etc.
•
Install registers 6 to 12 inches (152 to 305 mm) from the ceiling on an interior wall OR
install them in the ceiling.
•
•
Install the kitchen register at least 4 feet (1.2 m) from the range top.
If possible, measure the velocity of the air flowing through the registers. If the velocity is high-
er than 400 ft/min. (122 m/min), then the register type is too small. Replace with a larger one.
Fresh air distribution ductwork:
•
•
Install registers in bedrooms, dining room, living room and basement.
Install registers either in the ceiling or high on the walls with air flow directed towards the
ceiling. (The cooler air will then cross the upper part of the room, and mix with room air
before descending to occupant level.)
•
If a register must be floor installed, direct the air flow up the wall.
15
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6.0 Installation (cont’d)
6.5 Installing the Ductwork and Registers (cont’d)
6.5.2 Exhaust Ducted System (Source Point Ventilation) (as illustrated in Section 5.2)
Stale air exhaust ductwork: (same as for Fully Ducted System, described on page 15)
Fresh air distribution:
WARNING
!
010
When performing duct connection to the furnace, installation must be done in accordance with all
applicable codes and standards. Please refer to your local building code.
CAUTION
When performing connection 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 with a backdraft damper to pre-
vent the risk of overheating the HRV/ERV.
There are two methods for connecting the unit to the furnace:
Steel duct with
Method 1: supply side connection
backdraft damper
• Cut an opening into the furnace supply duct at least
18 inches (0.5 m) from the furnace.
• Connect this opening to the fresh air distribution port
of the HRV/ERV (use steel duct, see figure 10).
• Make sure that the HRV/ERV duct forms an elbow
inside the furnace ductwork.
minimum
18” (0.5 m)
• If desired, interlock (synchronize) the furnace blower
operation with the HRV/ERV operation.
(See Section 8.4).
VD0040
figure 10
Method 2: return side connection
• Cut an opening into the furnace return duct not less than
10 feet (3.1 m) from the furnace (A+B).
A
• Connect this opening to the fresh air distribution port of
the HRV/ERV (see figure 11).
NOTE:For Method 2, it is not essential that the furnace
blower runs when the HRV/ERV is in operation,
but we recommend it. If desired, synchronize the
furnace blower operation (see Section 8.4).
B
VD0041
A+B= not less
than 10’ (3.1 m)
figure 11
16
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6.0 Installation (cont’d)
6.5 Installing the Ductwork and Registers (cont’d)
6.5.3 Simplified installation (Volume Ventilation) (as illustrated in Section 5.3)
WARNING
!
010
When performing duct connection to the furnace, installation must be done in accordance with all
applicable codes and standards. Please refer to your local building code.
CAUTION
When performing connection to the furnace ducts (Method 1), these ducts must be sized to
support the additional airflow produced by the HRV/ERV. Also, the supply duct must be a steel
duct with a backdraft damper to prevent the risk of overheating HRV/ERV.
There are two methods (figures 12 and 13) for connecting the unit to the furnace:
Method 1: return-supply
Method 2: return-return
Steel duct with
backdraft damper
minimum
18” (0.5 m)
A
A+B= not less
than 10’ (3.1 m)
B
A
B
minimum 3’
VD0043
(0.9 m)
figure 13
A+B= not less
than 10’ (3.1 m)
VD0042
figure 12
Stale air intake:
• Cut an opening into the furnace return duct (not less than 10 feet (3.1 m) from the
furnace (A+B)).
• Connect this opening to the stale air intake port on the HRV/ERV as shown .
CAUTION
If using Method 2, make sure the furnace blower operation is synchronized with the HRV/ERV
operation! See Section 8.4.
Fresh air distribution: (same instructions as for Method 1 or Method 2, Section 6.5.2).
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.
NOTE: For Method 1, it is not essential to synchronize the furnace blower operation
with the HRV/ERV operation, but we recommend it.
17
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6.0 Installation (cont’d)
6.6 CONNECTING DUCTS TO THE UNIT
Insulated flexible duct
Use the following procedure for connecting the insulated flexible duct to the ports on the unit (exhaust to
outside and fresh air from outside).
a) Pull back the insulation to expose the flexible duct.
b) Connect the interior flexible duct to the port using a duct tie.
c) Carefully seal the connection with duct tape.
d) Pull the insulation over the joint and tuck it between the inner and outer rings of the double collar.
e) Pull the vapor barrier over the insulation and over the outer ring of the double collar.
f) Apply duct tape to the joint making an airtight seal. Avoid compressing the insulation when you pull 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.
CAUTION
Make sure that the vapor barrier on the insulated ducts does not tear during installation to avoid
condensation within the duct.
a)
b)
c)
d), e)
f)
VJ0003
VJ0004
VJ0002
VJ0001
VJ0005
Rigid duct:
Use duct tape to connect the rigid ducts to the ports.
CAUTION
Do not use screws to connect rigid ducts to the ports.
Make sure that the 2 balancing dampers are left in a fully open position before connecting the ducts to
these ports (fresh air distribution port and stale air exhaust port as shown on figure 14).
VJ0009
figure 14
18
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6.0 Installation (cont’d)
6.7 INSTALLING THE EXTERIOR HOODS
CAUTION
All models require an exhaust hood with a backdraft damper. This damper closes when the unit is
off and prevents unwanted cold air from entering the house.
6ӯ
(152 mm)
Choose an appropriate location for
installing the exterior hoods:
Intake
hood
•
a minimum distance of 6 feet (1.8 m)
between the hoods to avoid
cross-contamination
18”
(457 mm)
Exhaust
hood
18”
(457 mm)
•
a minimum distance of 18 inches (457 mm)
from the ground
6’
(1.8 m)
6’
(1.8 m)
Make sure the intake hood is at least 6 feet
(1.8 m) away from any of the following:
•
dryer exhaust, high efficiency furnace
vent, central vacuum vent
gas meter exhaust, gas barbecue-grill
any exhaust from a combustion source
garbage bin and any other source of
contamination
18”
(457 mm)
Optional duct
location
•
•
•
Tape and duct tie
Caulking
Refer to figure 15 for connecting the insulat-
ed duct to the hoods. Place the “FRESH
AIR INTAKE” sticker, provided in the instal-
lation kit, on corresponding hood. An “Anti-
Gust Intake Hood” should be installed in
regions where a lot of snow is expected to
fall.
VD0028
figure 15
6.8 CONNECTING THE DRAIN
12"(305 mm)
1
2
3
VO0004
VO0003
VO0005
Cut 2 sections of plastic tubing,
about 12” (305 mm) long and
attach them to each drain fitting.
Attach the 2 plastic drain fittings
to the unit using the gaskets,
washers and nuts as shown.
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
To drain
4
VO0011
19
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7.0 Control Devices
7.1 Main Controls
CAUTION
All models require a main control.
Basic model
Electronic model
CONDENSATI0N CONTROL
CONDENSATI0N CONTROL
C
-20
-4
C
C
-4
F
-5
41
F
41
F
AIR SUPPLY CONTROL
CONDENSATION CONTROL
MAXIMUM SPEED
OFF
AIR EXCHANGE IN PROGRESS
AIR SUPPLY CONTROL
MIN.
AIR
EXCHANGE
MIN.
MAX.
20 MIN
ON
40 MIN.
OFF
MAX.
CONTINUOUS
INTERMITTENT
VC0028
VC0027
MODELS
Basic Electronic
OFF Position
X
X
X
X
X
X
X
X
X
X
Intermittent exchange (TBI) 20 ON - 40 OFF
Low speed continuous exchange
High speed continuous exchange
Condensation control (Temperature scale)
Mode indicator
X
X
X
X
Detector
types
Air exchange indicator
Condensation/Pollutant control max speed indicator
Maintenance indicator with flashing intermittent
Sliding button
X
Switches
Push button
X
7.2 OPTIONAL CONTROL
20/40/60-MINUTE PUSH-BUTTON TIMER:
This remote illuminated switch is typically installed in bathrooms, kitchen and laundry room to provide
20, 40 or 60 minutes of high speed ventilation at the push of a button. The switch is supplied and mounted
on a white single gang wall plate.
20
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7.0 Control Devices (cont’d)
7.3 OTHER FEATURES
FURNACE INTERLOCK (for forced air heating system)
The furnace fan can be interlocked so that it will run simultaneously with the ERV or HRV to ensure proper
distribution of fresh air throughout the house (see table section 7.4, to see if it is available on your unit).
PERMANENT MEMORY
Our electronic controls have a default memory feature in the event of a power outage. Even the date of the
last service reminder is maintained as a convenience to the homeowner.
CONTROL UPGRADES
All controls can be used on any ERV, so a Basic control can be upgraded to the Electronic in the future
(see table in Section 7.4 below for control availability according to the units).
7.4 MAIN AND OPTIONAL CONTROLS AVAILABLE FOR YOUR UNIT
MAIN CONTROLS
OPTIONAL CONTROL
Model number
BASIC ELECTRONIC 20/40/60-min. push-button timer Furnace Interlock
ERV-150
HRV-150
ERV-210
HRV-210
X
X
X
X
X
X
X
X
X
X
X
X
Integrated
Integrated
Integrated
Integrated
7.5 SPECIAL COLD WEATHER TBI MODE FOR ERVS
The enthalpic core installed in ERVs requires extra protection when the outside temperature drops below
-15°C (5°F).
A special operating mode called TBI (Time-Based Intermittent) is activated under these conditions.
Characteristics of cold weather TBI mode
• activated when the outside temperature drops below -15°C (5°F).
• 20/40 cycle (20 minutes LOW speed followed by 40 minutes OFF).
• usual control of air supply via the main wall control is suspended (except for the OFF position).
• optional control (20/40/60-minute push button) retain its temporary high speed activation capability.
• deactivated when the outside temperature warms up higher than -15°C (5°F).
21
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8.0 Installation of the Controls
8.1 DIMENSIONS AND SPECIFICATIONS (MAIN CONTROLS)
13/8"
(35 mm)
Voltage:
Dimensions: 5” x 5” x 1 3/8”
12 volts DC
5" (127 mm)
(127 mm x 127 mm x 35 mm)
VC0016
FRONT VIEW
SIDE VIEW
8.2 INSTALLATION OF THE MAIN CONTROL
(BASIC AND ELECTRONIC)
CAUTION
Never install more than one main control per unit.
INSTRUCTIONS:
1- Determine the location of the control. The wall control must be installed in a central location on the
main floor. Typical locations for these controls are kitchen, main hallways and family room.
2- Remove the button(s) and the cover plate of the control.
VC0026
ELECTRONIC
BASIC
2" (5 cm)
3- Install the wall control 60 inches (1.5 m) from the floor and
leave a free space of at least 2 inches (5 cm) to the right of
the control to allow user to slide out the control instructions.
Use the template provided in the control box to position the
wire hole and the screw holes. Use the screws and the plastic
anchors provided in the installation kit to secure the control.
(See figure 16.)
60" (1.5 m)
VD0025
figure 16
22
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8.0 Installation of the Controls (cont’d)
8.2 INSTALLATION OF THE MAIN CONTROL (cont’d)
4- Connect the wires to the main control.
(See figure 17.)
figure 17
5- Make sure the instruction pull-out is in the
occupant’s language. If not, turn it to the other side.
(See figure 18.)
6- Reinstall the cover plate and the button(s).
VC0061
figure 18
7- Connect the wires to their corresponding position inside the
electrical compartment. Make sure the connections of the unit
and of the wall control correspond exactly. (See figure 19.)
Y R G B
B
Y R G
OL
I OC
F F
VE0072
figure 19
8- Connect the optional control (if applicable) by referring to Section 8.3.
9- Do the appropriate connection to the furnace (if applicable) by referring to Section 8.4.
10- NOTE: If the unit is installed in a cold region (Zone A, as defined in Section 3.0), set up “extended
defrost” by removing jumper JU1F on the main circuit board inside the electrical compartment
(see Section 9.0).
11- Plug in the unit and do the “overall verification” of the system as described in Section 11.0.
23
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8.0 Installation of the Controls (con’d)
8.3 ELECTRICAL CONNECTION TO OPTIONAL CONTROLS
MAIN PC BOARD
9
8
7
6
5
4
3
2
1
OL
OC
I
J3
J1
1
2
3
4
5
6
7
8
9
0L
I
REAR VIEW
PUSH-BUTTON SWITCHES
(5 switches maximum)
VE0036A
8.4 ELECTRICAL CONNECTION TO THE FURNACE
WARNING
!
010
Never connect a 120-volt AC circuit to the terminals of the furnace interlock (standard wiring). Only
use the low voltage class 2 circuit of the furnace blower control.
For a furnace connected to 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”. An additional control relay will then have to be installed.
Standard furnace interlock wiring
Alternate furnace interlock wiring
Unit Control Module
9-PIN AMP PLUG
THERMOSTAT
TERMINALS
W
R
G
Y
THERMOSTAT
TERMINAL
W
R
G
Y
J1
1
2
3
4
5
6
7
8
9
4 WIRES
FOUR
WIRES
HRV CONTROL CONNECTOR
J3
2 WIRES
heating only
TWO WIRES
heating only
F
F
I
OC OL Y
R
G
B
wiring
nuts
W
W
GRAY
BROWN
RED
GREEN
R
R
NC
NO
COM
G
C
G
C
BLUE
Y
Y
*FURNACE INTERLOCK
RELAY
Y
FURNACE
24-VOLT
TERMINAL BLOCK
FURNACE
24-VOLT
TERMINAL BLOCK
2 WIRES
TWO WIRES
COOLING SYSTEM
COOLING SYSTEM
*FURNACE INTERLOCK RELAY, PART # 12658
VE0010A
VE0009A
24
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9.0 Wiring Diagram
WARNING
!
010
Risk of electrical shocks. Before performing any maintenance or servicing, always disconnect the
unit from its power source.
. .
. .
. .
. .
. .
. .
. .
L o g i c
B
G R Y L O C O I
F
F
9
6
7
4
J 3
7 1 8 2 9 3
4
5
6
A B C D E F G
1
2
1
2
3
J U 1
J 4
J 1
25
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10.0 Air Flow Balancing
WHAT YOU NEED TO BALANCE THE UNIT
•
A magnehelic gauge capable of measuring 0 to
0.25 inch of water (0 to 62.5 Pa) and 2 plastic
tubes.
G
•
Two ”Flow Measuring Stations” or two flow
collars (the size will vary depending on the duct
diameter).
L
O
W
H
W
VP0006
VP0005
Flow collar
Flow measuring station
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 all filters are clean (if it is not the first time you balance the unit).
Make sure the balancing dampers are fully open (F and G in figure 20).
Choose appropriate locations for the 2 flow collars (or flow measuring stations), according to figure 20:
•
•
•
On the exhaust air duct (first measuring location, A)
On the fresh air distribution duct (second measuring location, B
At least 36” away from the unit; at least 12” before or after a 90° elbow; at least 12” away from a
register.
OR
A
B
12¨(304mm)
36¨(914mm)
12¨(304mm)
36¨(914mm)
F
G
VP0012A
Figure 20
INSTALLATION OF FLOW COLLARS OR “FLOW MEASURING STATIONS”
•
If you are using Flow Collars:
Insert the flow collars in the duct at each location. Make sure their arrows are pointing in the direction
of the airflow. Tape collars in place temporarily.
•
If you are using “Flow Measuring Stations”:
Cut a 1” (25.4mm) diameter hole in the duct at each location. Insert the “Flow Measuring Stations”.
Make sure their arrows are pointing in the direction of the airflow. Tape the “Flow Measuring Stations”
in place temporarily.
26
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10.0 Air Flow Balancing (cont’d)
BALANCING PROCEDURE
1. Set the unit to high speed.
Make sure that the furnace blower is ON if the installation is in any way connected to the ductwork of
the cold air return. If not, leave furnace 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 flow collar (or “Flow Measuring Station”) in
exhaust air stream at location A. 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 and exhaust ducted installation.
LO
W
HIGH
FLO
W
Place the magnehelic gauge upright and level. Record the readings.
VP0003
4. Move tubing to FRESH air flow on the other side of the unit (location B) and
note readings.
Adjust the fresh air balancing damper F until the reading at B is approximately
the same as the reading at A. If the reading at B is less than the reading at A,
then go back and adjust the exhaust balancing damper G to equal the fresh
air flow.
H
HIG
W
LO
OW
FL
VP0004
5. Secure both dampers in place with tape or with a fastening screw.
F
G
VD0069
VD0052
6. If you are using flow collars, remove them, reconnect the duct and seal with duct tape. If you are using
“Flow Measuring Stations”, remove them and seal the holes with duct tape. 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: Most flow collar kits provide a conversion chart located on the collar which enables you to convert
magnehelic gauge readings to equivalent cfm values.
The unit is considered balanced even if there is a difference of +/- 10 cfm (+/- 0.015 inch w.g.)
between the two air flow readings.
If you are only using one flow collar or one “Flow Measuring Station”, then, after completing the
first reading, transfer this measuring device to the other side of the unit and take the second reading.
27
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11.0 Overall Verification
11.1 MAIN CONTROLS
This procedure allows the installer to verify that all modes of operation are fully functional.
During the verification of a main control, make sure that all optional remote controls are inactive.
BASIC (6 different control scenarios to be tested)
CONDENSATI0N CONTROL
Set the slider
switch to
Off
Set condensation control
dial to
Results expected
fan speed
1
2
3
4
5
6
maximum counterclockwise
maximum clockwise
maximum counterclockwise
maximum clockwise
maximum counterclockwise
maximum clockwise
motor off
motor off
low speed
high speed
high speed
high speed
Off
Min.
Min.
Max.
-20
-4
C
41
F
AIR SUPPLY CONTROL
OFF
Max.
MIN.
AIR
EXCHANGE
MAX.
VC0027
ELECTRONIC (8 different control scenarios to be tested)
CONDENSATI0N CONTROL
Results expected
Set air supply
control to
Set condensation control
dial to
Fan
speed
Exchange Max speed
indicator
(A)
off
indicator
(B)
off
1
2
3
4
5
6
Off
Off
maximum counterclockwise
maximum clockwise
off
off
C
off
off
C
-4
F
-5
41
F
Min.
Min.
Max.
Max.
maximum counterclockwise
maximum clockwise
maximum counterclockwise
maximum clockwise
low
high
high
high
on
on
on
on
off
on
off
on
CONDENSATION CONTROL
MAXIMUM SPEED
AIR EXCHANGE IN PROGRESS
AIR SUPPLY CONTROL
off 40 min off 40 min
low 20 min on 20 min
off
off
on
MIN.
MAX.
7
8
Intermittent
Intermittent
maximum counterclockwise
maximum clockwise
20 MIN
40 MIN.
OFF
ON
CONTINUOUS
INTERMITTENT
high
on
VC0028
A
B
11.2 OPTIONAL CONTROL
First, turn OFF the main control device (Basic or Electronic) before checking the remote optional control.
20/40/60-MINUTE PUSH-BUTTON TIMER:
Activate the push button. Within 2 seconds, push one time for 20 minutes, two times for
40 minutes or three times for a 60-minute activation.
Results expected:
1. Motor speed: high for 20, 40 or 60 minutes.
2. Indicator light goes “ON” and flashes every 5 seconds (one time to indicate a
20 min.
40 min.
60 min.
20-minute operation, two times for a 40-minute, and three times for a 60-minute
operation).
3. Air exchange indicator light goes “ON” (Electronic wall control only).
NOTE: To stop activation, push one more time.
VC0046
28
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12.0 Maintenance / Instructions for User
WARNING
!
010
Risk of electrical shocks. Before performing any maintenance or servicing, always disconnect the
unit from its power source.
• Review with the user the steps required for the regular maintenance of her/his ventilation system.
These steps are described in details in the user manual:
FOUR TIMES A YEAR:
•
•
•
•
Inspect the intake hood, and clean if needed.
Clean the filters.
Clean the interior of the cabinet and clean the door.
Clean the condensation tray and inspect the drain tubing.
ONCE A YEAR:
•
•
Clean the recovery core.
Clean the blades of the blower wheels if needed.
• Warn the user of the necessity to rebalance the system following a major house renovation or following
the installation of any extra registers.
• Make sure the user understands how to use the main control as described in the user manual.
• If the unit being installed is an ERV, then make sure the user understands the characteristics of the special
cold weather TBI mode. The user should understand that his unit will not obey the settings on the main
wall control when the temperature drops below -15°C (5°F). See Section 7.5.
CAUTION
Do not oil the motor. It is already permanently lubricated.
29
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13.0 Troubleshooting
NOTE: Inspect the unit before proceeding with these steps.
Start-up troubleshooting:
Problems
Possible causes
You should try this
1. Unit does not work.
• The circuit board may
be defective.
B
G
VE0082
• Unplug the unit. Disconnect the main control
and the optional(s) control(s) (if need be). Jump
B and G terminals. Plug the unit. If the motor
runs on high speed and the damper opens, the
circuit board is not defective.
2. The damper actuator • The 9-pin connector may
does not work. have a loose connection.
• Unplug the unit and check to make sure all the
crimp connections are secured. Check the damper
actuator connections as well.
• The damper actuator may • Feed 120 V directly to the damper actuator. If the
be defective.
problem persists, replace the damper actuator.
• The circuit board may
be defective.
• Replace the circuit board if the problem is not
solved by the above.
3. The wall control does • TBI mode is activated.
not work OR
• If the outside temperature is below -15°C (5°F)
and the unit has an enthalpic recovery core
(energy recovery core), then the TBI mode is
probably activated. (See Section 7.5.)
the indicators flashes
every 8 seconds.
• The wires may be in
reverse position.
• Ensure that the color coded wires have been
connected to their appropriate places.
• Erratic operation of the
control every 8 seconds.
• Unplug the unit. Wait 30 seconds. Plug it back in.
• The wires may be broken. • Inspect every wire and replace any that are damaged.
• There may be a short-circuit.• With the help of a multimeter, check for continuity.
• The wire in the wall OR
the wall control may
be defective.
• Remove the wall control and test it right beside
the unit using another shorter wirer. If the wall
control works there, change the wire. If it does
not, change the wall control.
• The circuit board may
be defective.
• If the second wall control does not solve the
problem, then replace the circuit board.
30
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13.0 Troubleshooting (cont’d)
Problems
Possible causes
You should try this
4. The 20-minute push-button • The switch
or the 20/40/60-minute may be defective.
push-button timer does
not workOR its indicator
light does not stay on.
OL
OC
VE0067
• Unplug the unit. Disconnect the main control
and the optional(s) control(s) (if need be). Jump
the OL and OC terminals. Plug the unit. If the
unit switches to high speed, replace the switch.
5. The defrost cycle
does not work
• Ice deposits may be hindering • Remove the ice.
the damper operation.
(the fresh air duct is
frozen OR the fresh air• The damper rod or the port • Inspect these parts and replace if necessary.
distributed is very cold damper itself may be broken.
OR the “AIR EXCHANGE”
light flashes).
• The damper actuator
may be defective.
• Plug in the unit and select “MIN” or “MAX”.
Press the door switch and see if the port damper
opens. If it doesn’t open, feed 120V directly to
the damper actuator. If the port damper still does
not open, replace the damper actuator.
• The circuit board may
be defective.
• Unplug the unit. Unplug the defrost sensor wire
(see J4 on electrical diagrams, Section 9.0).
Plug the unit back in. Select “MIN” and make sure
the unit is adjusted for low speed operation (turn
all dehumidistats maximum counterclockwise).
Wait 3 minutes. The unit should switch to high
speed and the damper at the fresh air intake
port should close (defrost mode). If this does
not happen, then replace the circuit board.
• The thermistor may
be defective.
• If the defrost mode works well after having
disconnecting the thermistor wire (above test),
this means the thermistor is probably defective.
You should replace it.
31
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14.0 Warranty
The standard warranty for the HRV or ERV unit is one year parts only. If this product was installed with a
matched MAYTAG system, it carries a 10-year parts only warranty.
15.0 References
• HVI, “Installation Manual for Heat Recovery Ventilators”, 1987 edition.
• ASHRAE 1984 Systems Handbook, chapter 11, “Air Distribution Design for Small Heating and
Cooling Systems”.
R 2000
LISTED
LISTED
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