Healthy Climate HRV Series User manual

INDOOR AIR QUALITY
KIT AND ACCESSORIES
507363-02
1/2017
Supersedes 507363-01
HEALTHY CLIMATE®
HRV AND ERV VENTILATORS
INSTALLATION INSTRUCTIONS AND HOMEOWNER GUIDE FOR HEALTHY CLIMATE®
HEAT RECOVERY VENTILATOR (HRV) AND ENERGY RECOVERY VENTILATOR (ERV)
THIS MANUAL MUST BE LEFT WITH THE OWNER
FOR FUTURE REFERENCE
WARNING
Improper installation, adjustment, alteration, service or
maintenance can cause property damage, personal injury
or loss of life.
Installation and service must be performed by a licensed
professional HVAC installer (or equivalent) or a service
agency.
CAUTION
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves and
protective clothing.
Shipping and Packing List
Package 1 of 1 contains:
1 - Assembled ventilator
1 - Bag assembly containing:
2 - Drain spout assemblies (HRV units only)
1 - Drain tee (HRV units only)
4 - Hanging straps
1 - Installation instruction
1 - Warranty
1 - Wall-mounted remote control
General Information
This instruction is intended as a general guide and does not
supersede local codes in any way. Consult authorities who
have jurisdiction before installation.
HRV5-150 ERV3-150, -200
HRV3-195, -300
HRV3-095
Certain models have earned the EnErgy Star®mark by meeting strict energy
efciency guidelines set by Natural Resources Canada and the US EPA.
These models meet ENERGY STAR requirements only when used in Canada.
HRV3-150-TPD/TPF, HRV5-200-TPD
HRV3-195, -300

2
Table of Contents
Shipping and Packing List ..............................................1
General Information........................................................1
Model and Catalog Number Cross-References..............2
Terms and Denitions.....................................................2
Application......................................................................3
Required Tools and Materials.........................................3
Optional Accessories......................................................3
Specications .................................................................4
Dimensions - Unit - Inches (MM)....................................7
Shaping Ducting to Fit Oval Ports ..................................9
Requirements .................................................................9
Defrost Cycle (HRV).......................................................9
How the Dehumidistat Works .......................................10
Ventilation - ERV/HRV..................................................10
Wall Mount 2-Speed Dehumidistat/Ventilation
Control (Y8249) ............................................................11
Digital Five Speed / Five Mode Control (Y8250) ..........12
Optional Timers (Y2169 and Y8251) ..........................12
Wireless Repeater (Y8252) ..........................................13
Overview of Installation Methods..................................14
Installation Methods - Simplied (Return/Return).........14
Installation Methods - Partially Dedicated ....................15
Installation Methods - Fully Dedicated..........................16
Installation of the Unit...................................................17
Suspending the Unit .....................................................17
Installing the Drain Connection (HRV Unit Only)..........18
Installing Grilles and Diffusers......................................19
Installing Weatherhoods ...............................................19
Dual Hood Kit (Y3813)..................................................20
Installing Main Control..................................................21
Installation and Operation of Wireless Timers ..............21
Installation and Pairing of Wireless Repeaters
(Y8252).........................................................................22
Installation of Wired Fan Timers ...................................23
Installation of Mechanical Timers .................................23
Interlocking HRV/ERV Blower to Air Handler/
Furnace Blower ............................................................23
Electrical Connections..................................................24
Main Control Standby Setting.......................................24
Activating Dry Contact Controls....................................24
Installer Selectable High Speed Settings .....................28
Airow Balancing..........................................................28
Airow Balancing Using the Pitot Tube (All Models).....29
Airow Balancing Using the Door Ports (Available on Se-
lected Models) ..............................................................30
Sequence of Operations...............................................37
Troubleshooting............................................................40
Replacement Parts Summary.......................................41
Blower Assembly Service (Dealer Only).......................42
Homeowner Maintenance Information..........................43
Application Map - HRV/ERV Ventilators .......................44
Model and Catalog Number
Cross-References
Table 1. Models and Catalog Numbers
Model Catalog Number
ERV3-150 Y2138
ERV3-200 Y2139
HRV3-095* Y2142
HRV3-150-TPD Y5447
HRV3-150-TPD-GDX** Y6423
HRV3-150-TPF Y5448
HRV3-150-TPF-GDX** Y6424
HRV3-095-GDX*/** Y2967
HRV3-195* Y2143
HRV3-300* (Dual-Core) Y2144
HRV5-150* Y6419
HRV5-150-GDX*/** Y6420
HRV5-200-TPD Y6421
HRV5-200-TPD-GDX*/** Y6422
*These models have earned the ENERGY STAR®mark by meeting strict en-
ergy efciency guidelines set by Natural Resources Canada and the US EPA.
These models meet ENERGY STAR requirements only when used in Canada.
** Available in Canada only.
Terms and Denitions
• Defrost Mode (HRV) - to ensure reliable operation
during cold weather, the HRV will automatically cycle
through its defrost mode as needed.
• Dehumidistat - a control device that senses the amount
of moisture in the air and activates high−speed ventila-
tion when the air moisture level exceeds the set point.
• Reset - whenever resetting of the HRV/ERV is required,
simply unplug the power cord for 30 seconds. The Self-
Test will occur when the HRV/ERV is reconnected.
• Self-Test - each time the HRV/ERV is powered/ener-
gized, the self test function will automatically initiate.
During the self-test, the HRV/ERV will cycle through all
the speeds available (1 − 5), test the damper motor op-
eration, and will default back to the previous operational
mode and speed selection. Total self test duration is ap-
proximately 90 seconds.
• Standby Mode - the HRV/ERV is powered/energized
and waiting for fan operation to be initiated. For exam-
ple, the HRV is set to Continuous Ventilation Operation-
al Mode at speed 0.
• Thermistor - the HRV/ERV’s temperature sensor which
measures electrical resistance in a known manner, as
outdoor temperatures uctuate.
• HVI - Home Ventilating Institute.
• R2000 - Canada Home Building Energy Efciency
Standard.
• HRAI - Heating Refrigeration Air Conditioning Institute.

3
Application
The Healthy Climate®Heat Recovery Ventilator (HRV) and
Energy Recovery Ventilator (ERV) are designed to provide
fresh air while exhausting an equal amount of stale air. Re-
fer to “Application Map - HRV/ERV Ventilators” on page
44.
The HRV unit is equipped with an aluminum core. The de-
vice uses the stale air that is being exhausted to condition
the fresh air as it is being brought in.
The ERV unit is equipped with an enthalpic core. This de-
vice is designed for use in warm, humid climates with heavy
air conditioning loads. The ERV unit transfers both sensi-
ble (temperature) and latent (moisture) heat from incoming
fresh air to the stale air as it is being exhausted; thus, re-
ducing the air conditioning load. The ERV unit is not suit-
able for use in climates where the temperature drops below
25ºF (−4ºC) for more than ve days continuously.
Required Tools and Materials
Recommended Materials
Table 2. Materials
low voltage control wire mastic tape
1/2˜ I.D. drain hose caulking material
aluminum foil duct tape zip ties (duct)
fabric exible duct − class II rated zip ties
Table 3. Balancing Tools
Product Catalog Number Description
Balancing Tool Y6484 Digital Manometer with range of 0 -
4.000 inches w.c. (0 - 995 kPa)
Door Port Gauge
Tube Set Y2207
Can be used to balance HRV3-150-
TPD/TPF, HRV5-150/200 Models
Only).
Includes two connection hoses,
two rubber ttings and instructions.
Digital manometer. Rreading down
to 0 with resolution of 0.001 inches
w.c.(0.00024884 kPa) or Magnehelic
gauge - scale of 0 to 1.0 inches
w.c.(0 - to 0.24884 kPa) is not
furnished and must be eld-supplied.
Optional Accessories
Table 4. Optional Accessories
Description Catalog
Number
Wired Timer Y2169
Wireless 20/40/60 Minute Timer Y8251
Wireless Timer Repeater Y8252
Wall Mount Dehumidistat/Ventilation Control (furnished with
all units except GDX)
Y8249
Digital 5 Speed / 5 Mode Control (furnished with all GDX units) Y8250
Weatherhood Kit (includes two hoods, two screens, two 12 inch sleeves, two
collars and supply/exhaust labels):
5” (127 mm) 92E66
6” (152 mm) 95P07
7” (178 mm) 17N11
Table 4. Optional Accessories
Description Catalog
Number
Round Diffusers:
4” (102 mm) 92E54
5” (127 mm) 92E55
6” (152 mm) 92E56
8” (203 mm) 56N81
Dual Hood kit (includes hood assembly, foam gasket, duct
splitter, duct insulator, retainer screw assembly, nylon cable
tie, screens, labeled Supply/Exhaust. 6” (152 mm)
Y3813
Kitchen Grille, 6” x 10” (152 mm x 254 mm) (May be required
by code for kitchen applications; contains removable grease
lter)
18N48
Back Draft Dampers:
5” (127 mm) Y3728
6” (152 mm) Y3727
Buttery Balancing Dampers:
6” (152 mm) 91X09
7” (178 mm) Field-supplied
Duct Heaters:
6” (152 mm) 1KW 97E73
6” (152 mm) 2KW 20N16
7” (178 mm) 2KW 97E74

4
Specications
Table 5. Specications
Specications Single−Core HRV Units Dual−Core HRV Units Single−Core ERV Units
Model No.
HRV3
−150−TPD/-
150-TPD-GDX
(Y5447/Y6423)
HRV3-150
−TPF/-150TPF-
GDX
(Y5448/Y6424)
HRV3
−095/−095−
GDX
(Y2142/
Y2967)
HRV5
−150/−150−
GDX (Y6419/
Y6420)
HRV5
-200-TPD/-
200-TPD-
GDX (Y6421/
Y6422)
HRV3−195
(Y2143)
HRV3−300
(Y2144)
ERV3−150
(Y2138)
ERV3−200
(Y2139)
Energy Star®
qualied
(Canada Only)
No No Yes Yes Yes Yes Ye s No No
Weight- pounds
(kilograms) 51 (23) 51 (23) 52 (24) 71 (32) 57 (26) 106 (48) 106 (48) 68 (31) 68 (31)
Unit Dimensions Refer to dimension drawings starting with “Figure 1. Dimensions and Airows” on page 7.
High Speed (HVI Certied)
inches w.g. (Pa) CFM (L/s) CFM (L/s) CFM (L/s) CFM (L/s) CFM (L/s) CFM (L/s) CFM (L/s) CFM (L/s) CFM (L/s)
0.1 (25) 169 (74) 174 (82) 76 (36) 184 (87) 222 (105) 216 (101) 232 (110) 151 (71) 180 (85)
0.2 (50) 156 (69) 165 (77) 73 (34) 163 (77) 207 (98) 195 (92) 212 (100) 141 (67) 169 (79)
0.3 (75) 149 (63) 154 (73) 70 (33) 146 (69) 193 (91) 181 (85) 202 (95) 132 (62) 157 (74)
0.4 (100) 136 (59) 143 (67) 66 (31) 132 (62) 179 (84) 158 (74) 183 (86) 124 (59) 146 (69)
0.5 (125) 126 (54) 132 (62) 60 (28) 115 (54) 165 (78) 144 (68) 163 (77) 107 (50) 132 (62)
0.6 (150) 116 (49) 120 (56) 92 (43) 150 (71) 125 (59) 144 (68) 98 (46) 118 (55)
0.7 (175) 103 (45) 107 (521) 60 (28) 135 (63) 107 (50) 123 (58) 81 (38) 101 (47)
0.8 (200) 89 (40) 95 (45) 119 (56) 72 (34) 92 (43) 60 (28) 82 (39)
0.9 (225) 77 (33) 83 (39) 102 (49)
1.0 (250) 58 (29) 71 (34) 84 (40)
Sensible
Effectiveness
@ 32ºF (0ºC)
@ 66 CFM (31
L/s) 74%
@ 66 CFM (31
L/s) 75%
@ 60 CFM
(28
L/s) 88%
@ 59 CFM (28
L/s) 84%
@ 100 CFM
(47 L/s) 77%
@ 114 CFM
(54 L/s) 86%
@ 117
CFM (55
L/s) 90%
@ 63 CFM
(30 L/s)
81%
@ 116
CFM (55
L/s) 76%
Sensible
Efciency
@ 32ºF (0ºC)
@ 66 CFM (31
L/s) 61%
@ 66 CFM (31
L/s) 66%
@ 60 CFM
(28
L/s) 75%
@ 59 CFM (28
L/s) 75%
@ 100 CFM
(47 L/s) 68%
@ 114 CFM
(54 L/s) 78%
@ 117
CFM (55
L/s) 79%
@ 63 CFM
(30 L/s)
69%
@ 116
CFM (55
L/s) 69%
Sensible
Efciency
@ −13ºF (−25ºC)
@ 76 CFM
(31 L/s) 63%
@ 76 CFM
(30 L/s) 56%
@ 61 CFM
(29
L/s) 68%
@ 64 CFM (30
L/s) 72%
@ 100 CFM
(47 L/s) 68%
@ 112 CFM
(53 L/s) 72%
@ 132
CFM (62
L/s) 70%
N/A N/A
Latent Efciency
95ºF (35ºC) N/A N/A N/A N/A N/A N/A N/A
@ 65 CFM
(30 L/s)
37%
@ 117
CFM (55
L/s) 41%
Total Efciency
95ºF (35ºC) N/A N/A N/A N/A N/A N/A N/A
@ 65 CFM
(30 L/s)
47%
@ 117
CFM (55
L/s) 50%
Number of
speeds available
with included wall
control
2/5* 2/5* 2/5* 2/5* 2/5* 2 2 2 2
Number of
speeds available
with optional wall
control (Control
is furnished with
all GDX models)
5 5 5 5 5 5 5 5 5
Ventilator Type Heat
Recovery
Heat
Recovery
Heat
Recovery
Heat
Recovery
Heat
Recovery
Heat
Recovery
Heat
Recovery
Energy
Recovery
Energy
Recovery
Heat/Energy
Recovery Core Aluminum Aluminum Aluminum Aluminum Aluminum Aluminum Aluminum Enthalpic Enthalpic
Number of HRV/
ERV Cores 1 1 1 1 1 2 2 1 1
Defrost Type Recirculating Fan Recirculating Recirculating Recirculating Damper Damper None None
Door Port
Balancing Yes Yes No Yes Yes No No No No
Balancing
Damper in
Supply &
Exhaust Collar
Yes Yes No Yes Yes No No Yes Ye s
Number of Ports 4 4 4 4 4 5 5 4 4
NOTE: All specications are subject to change without notice.
* For GDX models only

5
Table 5. Specications
Specications Single−Core HRV Units Dual−Core HRV Units Single−Core ERV Units
Model No.
HRV3
−150−TPD/-
150-TPD-GDX
(Y5447/Y6423)
HRV3-150
−TPF/-150TPF-
GDX
(Y5448/Y6424)
HRV3
−095/−095−
GDX
(Y2142/
Y2967)
HRV5
−150/−150−
GDX (Y6419/
Y6420)
HRV5
-200-TPD/-
200-TPD-
GDX (Y6421/
Y6422)
HRV3−195
(Y2143)
HRV3−300
(Y2144)
ERV3−150
(Y2138)
ERV3−200
(Y2139)
Pre-Filters
(Foam) Supply &
Exhaust
Yes Yes Yes Yes Yes Yes Yes Yes Ye s
Wall Controller
Included Y8249/Y8250* Y8249/Y8250*/ Y8249/ Y8250* Y8249/Y8250* Y8249/ Y8250* Y8249 Y8249 Y8249 Y8249
Electrical
Characteristics 120 Volts, 60 Hertz, 1 phase
Fan HP 1/20 1/20 1/20 1/10 1/10 1/10 1/4 1/20 1/10
Motor Type PSC PSC PSC PSC PSC PSC PSC PSC PSC
Fan Watts − High
Speed
@ 0.3 inches
w.g.
110 118 150 118 96 173 333 173 182
Fan Watts − Low
Speed
@ 0.3 inches
w.g.
57 66 60 66 64 100 150 63 70
Amp Rating 1.3 1.4 0.9 1.4 1.4 1.5 2.9 1.4 1.4
Condensate
Drain
Connections:
Spouts: qty. 2
(1/2” o.d.) Drain
Tee: qty. 1 (1/2”
o.d.)
Yes Yes Yes Yes Yes Yes Yes N/A N/A
NOTE: All specications are subject to change without notice.
* For GDX models only
Table 6. Additional Specications
Specications Single−Core HRV Units Dual−Core HRV Units Single−Core ERV Units
Model No.
HRV3
-150-TPD/-
150-TPD-
GDX
(Y5447/
Y6423)
HRV3-150
−TPF/-150-
TPF-GDX
(Y5448/
Y6424)
HRV3
−095/−095−
GDX
(Y2142/
Y2967)
HRV5
−150/−150−
GDX
(Y6419/
Y6420)
HRV5
-200−TPD/-
200−TPD−
GDX
(Y6421/
Y6422)
HRV3−195
(Y2143)
HRV3−300
(Y2144)
ERV3−150
(Y2138)
ERV3−200
(Y2139)
OPTIONAL FAN CURVES SPEEDS (FACTORY TESTED)
Speed 4−med high
inches w.g. (Pa) CFM (L/s) CFM (L/s) CFM (L/s) CFM (L/s) CFM (L/s) CFM (L/s) CFM (L/s) CFM (L/s) CFM (L/s)
0.1 (25) 70 (33) 153 (72) 189 (89) 167 (78) 220 (103) 120 (56) 151 (71)
0.2 (50) 65 (31) 141 (67) 170 (80) 159 (75) 202 (94) 111 (52) 147 (69)
0.3 (75) 50 (24) 131 (62) 153 (72) 150 (71) 186 (87) 103 (48) 129 (61)
0.4 (100) 101 (48) 101 (48) 31 (15) 117 (55) 136 (64) 140 (66) 169 (79) 92 (43) 118 (55)
0.5 (125) 91 (43) 91 (43) 96 (45) 120 (57) 124 (58) 158 (74) 80 (38) 104 (49)
0.6 (150) 82 (39) 82 (39) 80 (38) 106 (50) 110 (52) 134 (62) 64 (30) 89 (42)
0.7 (175) 69 (33) 69 (33) 91 (43) 93 (44) 108 (50) 43 (20) 63 (30)
0.8 (200) 60 (28) 60 (28) 78 (37) 79 (37)
Speed 3−med
0.1 (25) 65 (31) 144 (68) 161 (76) 142 (67) 194 (91) 97 (46) 133 (63)
0.2 (50) 60 (28) 130 (61) 141 (67) 136 (64) 178 (83) 87 (41) 130 (61)
0.3 (75) 92 (43) 92 (43) 48 (23) 120 (57) 123 (58) 127 (60) 170 (79) 81 (38) 124 (58)
0.4 (100) 82 (39) 82 (39) 30 (14) 106 (50) 108 (51) 118 (55) 154 (72) 72 (34) 114 (54)
0.5 (125) 71 (34) 71 (34) 88 (42) 92 (43) 103 (48) 139 (65) 61 (29) 104 (49)
0.6 (150) 60 (28) 60 (28) 77 (36) 92 (43) 118 (55) 53 (25) 94 (44)
0.7 (175) 64 (30) 72 (34) 94 (44) 80 (38)
0.8 (200) 52 (25)
Speed 2−med low
NOTE: All specications are subject to change without notice.

6
Table 6. Additional Specications
Specications Single−Core HRV Units Dual−Core HRV Units Single−Core ERV Units
Model No.
HRV3
-150-TPD/-
150-TPD-
GDX
(Y5447/
Y6423)
HRV3-150
−TPF/-150-
TPF-GDX
(Y5448/
Y6424)
HRV3
−095/−095−
GDX
(Y2142/
Y2967)
HRV5
−150/−150−
GDX
(Y6419/
Y6420)
HRV5
-200−TPD/-
200−TPD−
GDX
(Y6421/
Y6422)
HRV3−195
(Y2143)
HRV3−300
(Y2144)
ERV3−150
(Y2138)
ERV3−200
(Y2139)
0.1 (25) 62 (29) 127 (60) 127 (60) 115 (54) 170 (79) 73 (34) 112 (53)
0.2 (50) 81 (38) 81 (38) 54 (25) 116 (55) 108 (51) 107 (50) 163 (76) 67 (31) 107 (50)
0.3 (75) 70 (33) 70 (33) 42 (20) 106 (50) 90 (42) 100 (47) 151 (70) 59 (28) 101 (47)
0.4 (100) 60 (28) 60 (28) 26 (12) 97 (46) 73 (34) 90 (42) 136 (63) 51 (24) 96 (45)
0.5 (125) 46 (22) 46 (22) 86 (40) 60 (28) 81 (38) 129 (60) 45 (21) 88 (41)
0.6 (150) 48 (22) 66 (31) 107 (50) 77 (36)
0.7 (175) 38 (18) 88 (41) 60 (28)
0.8 (200)
Speed 1−low
0.1 (25) 51 (24) 108 (51) 100 (48) 88 (41) 144 (67) 53 (25) 88 (41)
0.2 (50) 61 (29) 61 (29) 45 (21) 100 (47) 78 (37) 80 (38) 137 (64) 44 (21) 85 (40)
0.3 (75) 49 (23) 49 (23) 33 (16) 91 (43) 60 (28) 73 (34) 134 (62) 38 (18) 80 (38)
0.4 (100) 35 (17) 35 (17) 18 (8) 78 (37) 46 (22) 63 (30) 121 (56) 32 (15) 77 (36)
0.5 (125) 32 (15) 56 (26) 110 (51) 67 (31)
0.6 (150) 43 (20) 95 (44)
0.7 (175) 84 (39)
0.8 (200)
OPTIONAL ACCESSORIES−MUST BE ORDERED EXTRA
Backdraft
Damper 5” Y3728 Y3728 Y3728 N/A N/A N/A N/A N/A N/A
Backdraft
Damper 6” N/A N/A N/A Y3727 Y3727 Y3727 Y3727 Y3727 Y3727
Buttery
Damper, 6” N/A N/A 91X09 Included in the unit N/A N/A N/A Included in the unit
Buttery
Damper, 7” N/A N/A N/A N/A N/A Field Supplied N/A N/A
Insulated
Flexible Ducting:
(Qty Req’d) ˘Dia.
(2) 5 (2) 5 (2) 5 (2) 6 (2) 6 (2) 6 (2) 6 (2) 6 (2) 6
COMMON ACCESSORIES − AS REQUIRED, BASED ON USER APPLICATION
Door Port
Balancing Kit
(same kit w/o
Gauge)
Y2207
Digital Handheld
Manometer Y6484
Magnehelic
Gauge only
(0-0.25”)
N/A N/A 79P83
Pitot Tube
Balancing Kit N/A N/A 56N82
Pitot Tube only 72X52
Repeater for
Wireless
Timers
Y8252
NOTE: All specications are subject to change without notice.

7
Dimensions - Unit - Inches (MM)
HRV3-095 HEAT RECOVERY VENTILATOR
THREADED INSERTS
(4) at corners
FILTER
(in back
chamber)
18-1/2 (470)
FRESH AIR
TO INSIDE
(Supply)
6 in. (178 mm)
round
(converted to
oval collar)
STALE AIR TO
OUTSIDE (Exhaust)
5 in. (127 mm) round
collar
STALE AIR FROM
INSIDE (Exhaust)
6 in. (178 mm) round
(converted to oval) collar
supplied
FRESH AIR
FROM
OUTSIDE
(Supply)
5 in. (127 mm)
round collar
HANGING STRAPS (4)
DRAIN
SPOUT
DRAIN
PAN
CORE
24-1/2
(622)
16
(406)
18-1/2
(470)
18 in. (457 mm)
(min.) required for
service access
TOP VIEW
FRESH
AIR
FROM
OUTSIDE
FRESH
AIR TO
INSIDE
STALE
AIR TO
OUTSIDE
STALE
AIR
FROM
INSIDE
DIVIDER PANEL
(each side)
FILTER
(in front
chamber)
A
B
A
BDC
D
C
A
B
D
CORE
HRV5-150 HEAT RECOVERY VENTILATORS
19 (483)
NOTE - Front clearance of
25 in. (635 mm)
is recommended
for servicing unit
14-3/4 (375)
HRV3-195, HRV3-300 HEAT RECOVERY VENTILATORS
19 (483)
14-3/4 (375)
NOTE - Front clearance of
25 in. (635 mm)
is recommended for
servicing unit
NOTE: DRAWING DEPICTS HRV3-300; MODEL
HRV3-195 MOTOR IS AT TOP BLOWER
DEFROST
DAMPER
DEFROST AIR
FROM INSIDE
FILTER
CONDENSATE DRAINS
FRESH
AIR TO
INSIDE
STALE AIR
FROM
INSIDE
BLOWER
FRESH
A
IR FROM
OUT SIDE
MOTOR (SEE
NOTE BELOW)
CORE
FILTER
CORE
STALE
AIR TO
OUTSIDE
49 (1245)
BLOWER
Blower Duct
Connections
7 in. (178 mm)
Duct
Connections
6 in. (152 mm)
C
RECIRCULATING
DEFROST
DAMPER
FILTERS
STALE AIR FROM INSIDE
CONDENSATE
DRAINS BALANCING
DAMPER
FRESH
AIR TO
INSIDE
STALE
AIR TO
OUTSIDE
NOTE - All Duct Connections
6 in. (152 mm)
FRESH AIR FROM OUTSIDE
MOTOR
BALANCING DAMPER
33-5/8 (854)
BLOWER
BLOWER
CORE
HRV3-150-TPD/TPF HEAT RECOVERY VENTILATORS
FRESH AIR
FROM
OUTSIDE
STALE
AIR FROM
INSIDE
FRESH
AIR TO
INSIDE
STALE
AIR TO
OUTSIDE
DEFROST
DAMPER
(TPD Model Only)
BLOWER BLOWER
NOTE − Front clearance of
25 inches (635 mm) is
recommended for servicing unit
14
(356)
17-1/4
(438)
All duct connections are elliptical collars
for use with 5 in. (125 mm) ductwork.
Balancing Dampers are located on all collars.
22-3/4
Figure 1. Dimensions and Airows

8
18-3/4
(476)
All ducts use 6 in. (150 mm) oval collars,
balancing dampers are located on all collars.
BLOWER
NOTE − Front clearance of
25 in. (635 mm) is
recommended for servicing unit
14
(356)
33-5/8 (854)
FRESH AIR
FROM
OUTSIDE
STALE
AIR FROM
INSIDE
FRESH
AIR TO
INSIDE
STALE
AIR TO
OUTSIDE
RECIRCULA
TING
DEFROST
DAMPER
CONDENSATE
DRAINS
CORE
FILTERS
BLOWER
HRV5-200-TPD HEAT RECOVERY VENTILATORS
Figure 2. HRV5-200-TPD
ERV3-150, ERV3-200 ENERGY RECOVERY VENTILATORS
FILTER
STALE AIR
FROM INSIDE
BALANCING
DAMPER
FRESH
AIR TO
INSIDE
STALE
AIR TO
OUTSIDE
BLOWER
All Duct Connections
6 in. (152 mm)
FRESH AIR
FROM OUTSIDE CORE
BALANCING DAMPER
NOTE - Front clearance of
25 in. (635 mm) is
recommended for
servicing unit
33-5/8 (854)
BLOWER
MOTOR
FILTER
14-3/4 (375)
19 (483)
Figure 3. ERV-3-150 and ERV3-200
8-1/4 (210)
13 (330)
25 (635)
8 (203)
6 (152)
21-1/2 (546)
TOP VIEW
SIDE VIEW
6 (152)
5 (127)
6 (152)
Figure 4. Dual Hoods

9
Shaping Ducting to Fit Oval Ports
The HRV3-095, HRV3-150TPD, HRV3-150TPF and HRV5-
200TPD units have oval supply and return ports. This en-
ables these units to be as space efcient as possible. Cir-
cumference of the port remains the same as round ducting.
Simply bend a standard duct tting to the correct shape
and attach to the oval port using the same method as for a
round port.
Figure 5. Shaping Ducting to Fit Oval Ports
Requirements
The following appliances should not be connected to the
HRV/ERV unit:
• Clothes dryer
• Range top
• Stove top fan
• Central vacuum system
NOTE: Failure to follow this instruction will void the HRV/
ERV unit warranty.
DANGER
Risk of Carbon Monoxide Poisoning and/or Explosion.
Can cause injury or death.
Combustion and ue gases from heating appliances must
never be allowed to enter living spaces.
HRV/ERV unit must be properly balanced (see page 30
or 32) to prevent negative pressure in structure. Negative
pressure can cause back−drafting of combustion gases
in other household appliances such as Gas Furnaces, Oil
Furnaces, Hot Water Heaters, Wood Stoves, Fireplaces,
etc.
(5-Port HRV models only) Defrost cycles will cause
negative pressure in equipment room. Install ductwork
and route to areas that do not contain appliances with
vented combusted gases. Never connect a return or
supply duct to other heating units such as replaces,
wood stoves.
CAUTION
Potential equipment malfunction or damage.
May require repairs and/or void warranty.
Do not interconnect HRV/ERV to other appliances such
as Stove Vents, Clothes Dryer Vents, Central
Vacuum Systems, Auxiliary Fans, etc.
Defrost Cycle (HRV)
The HRV has an electronically controlled defrost system.
The defrost cycle is activated when the outdoor tempera-
ture drops below 27ºF (−3ºC). Incoming fresh air is mea-
sured to set the defrost times and the run times while in the
defrost mode. The three defrost settings are:
• At 27ºF (−3ºC) HRV runs in defrost for three minutes
and runs in ventilation for 25 minutes
• At −4ºF (−20ºC) HRV runs in defrost for 4.5 minutes and
runs in ventilation for 17 minutes
• At −31ºF (−35ºC) HRV runs in defrost for 7 minutes and
runs in ventilation for 15 minutes
No remote device can override this defrost mode or select-
ed speed until the cycle is complete. After the cycle is com-
pleted the HRV defaults to previous settings. If the cycle
is completed and the thermistor continues to measure de-
frost temperature the defrost cycle is repeated. ERVs have
no defrost cycle and are not recommended where outdoor
temperatures fall below 25ºF (−4ºC) continuously for more
than ve days.
Recirculating Damper Defrost (HRV3−095, HRV3−150−
TPD, HRV5−150, HRV5-200-TPD)
During defrost a motor driven damper door mechanism
closes off the supply air from outside allowing exhaust air to
recirculate through the unit’s core. During defrost cycle no
ventilation is occurring. After the defrost period, the damp-
er operates in the opposite direction to reopen the fresh
air port. Defrost cycle repeats until the temperature rises
above 27ºF (−3ºC).
Damper Defrost − Five Port Models (HRV3−195/300)
- During defrost a motor driven damper door mechanism
closes off the supply air from outside allowing a fth port to
open enabling warm air to be drawn in from around the unit.
During defrost cycle stale air exhaust is still occurring. After
the defrost period, the damper operates in the opposite di-
rection to reopen the fresh air port. Defrost cycle re-peats
until the temperature rises above 27ºF (−3ºC). (The defrost
port can also be ducted to another location.)
Fan Defrost (HRV3−150−TPF) - During defrost cycle, the
Fresh Air supply motor will shut off and the Stale Air ex-
haust motor will continue to run. After the defrost period, the
Fresh Air supply motor will resume. Defrost cycle repeats
until the temperature rises above 27ºF (−3ºC).

10
How the Dehumidistat Works
High indoor humidity levels, during the heating season, have
become a problem in many well insulated, tight homes. Ex-
cessive condensation on the windows is a visual sign of
high indoor humidity levels. High indoor humidity levels can
result in mold, mildew and the eventual degradation of the
building structure itself.
Your HRV reduces indoor humidity levels when the outdoor
air is drier than the indoor air.
These conditions usually occur during the heating season
when outdoor temperatures are less than 59°F (15°C) .
During the heating season, the operation of the HRV may
reduce indoor humidity levels sufciently to eliminate the
need for further dehumidication. Use the adjustable Dehu-
midistat feature located on the main control if your home re-
quires further dehumidication during the heating season.
This feature aggressively addresses high indoor humidity
levels by initiating high speed ventilation when the indoor
humidity levels rise above the set point on the control. Once
the humidity in the house is reduced, the HRV will revert
back to its previous setting.
We suggest operating the HRV for the rst few days without
use of the Dehumidistat function to observe if a further de-
humidication effect will be required.
The Dehumidistat operates in percentage of RH (relative
humidity) with 60 being high and 20 being low. If after a few
days, further dehumidication is required (the house is still
too humid), set the humidity level to a lower amount.
The average person is comfortable between 30% and 50%
RH. The Dehumidistat should be set to OFF for all seasons
except the heating season since a dehumidifying effect only
occurs when the outdoor air is dryer than the indoor air.
Dehumidistat Notes
Dehumidistat Disable automatically disables the dehumid-
istat function on the main control when outdoor tempera-
tures exceed 59°F (15°C) for a full 24 hour period. All other
HRV features and functions operate normally while the De-
humidistat Function is disabled.
Dehumidistat Re-Enable automatically re-enables the de-
humidistat function when the outdoor temperature drops
below 59°F (15°C) for a full 24 hour period or if the HRV is
reset (unplugged for 30 seconds).
Ventilation - ERV/HRV
Today’s modern, air tight homes require fresh outdoor air to
maintain a healthy indoor air environment. The amount of
ventilation required in a home depends upon:
• The number of occupants and their activity levels
• The way the home was built
• Personal preferences for air
The HRV/ERV introduces fresh air to your home while re-
covering energy from the air it exhausts. Specically, an
HRV/ERV that is properly installed, operated, and main-
tained will:
• Exhaust stale, contaminated air
• Introduce an equal amount of fresh outdoor air Recover
the majority of the energy from the exhausted stale air
• Use the recovered energy to pre-heat or pre-cool out-
side air that is drawn into the house
• Distribute the fresh air throughout the house
How much ventilation is needed?
During seasons when windows and doors are closed (win-
ter and summer, if air conditioned) the HRV/ERV should be
set to operate continuously on low speed with the option of
going to high speed as the need arises. For example, if a
large number of people are present in the home, the unit
should be switched temporarily to high speed. Conversely,
when the home is unoccupied, an intermittent operational
mode (e.g. 20 minutes on / 40 minutes off) may be used.
Selecting the Ventilation Rate That is Right for You.
The modes of operation and speeds are used to adjust your
indoor ventilation rate. Experiment with the ventilation lev-
els in your home to evaluate the ideal amount of ventilation
to suit your home and personal preferences. Operational
modes available to you will depend on the main control that
is installed. Some features and modes may be unavailable
to you.

11
Table 7. Operational Modes
Mode Description
Continuous Ventilation This mode of operation provides continuous
ventilation within the home. You may, for exam-
ple, select Continuous Ventilation at low speed
for normal operation and increase to high speed
during increased activity levels, such as cooking
and showering, etc.
20 Minutes On, 40 Minutes
Recirculation* This mode ventilates for 20 minutes and cir-
culates the household air for 40 minutes each
hour. This mode is not applicable if your HRV is
connected to a forced air system. This mode is
useful when “Continuous Ventilation” mode is
providing too much ventilation.**
20 Minutes On, 40 Minutes
Standby*
This mode of operation provides 20 minutes
of ventilation each hour. You can use this
ventilation mode at low speed for low household
activity levels or when the home is unoccupied.
This mode is useful if “Continuous Ventilation”
mode is providing too much ventilation.
10 Minutes On, 50 Minutes
Standby*
This mode of operation provides 10 minutes
of ventilation each hour. You can use this
ventilation mode at low speed for low household
activity levels or when the home is unoccu-
pied. This mode is useful if “20 Minutes On, 40
Minutes Standby” mode is providing too much
ventilation.
Continuous Recirculation* This mode continuously recirculates your
household air (no ventilation). This mode is not
applicable if your HRV is connected to a forced
air system.**
Continuous Low Fan
Speed This mode will operate the fan in low speed
continuously at the selected operating mode
(Ventilation or Recirculation).
Continuous High Fan
Speed
This mode will operate the fan in high speed
continuously at the selected operating mode
(Ventilation or Recirculation). This mode is HI
useful when occupancy or activity levels in the
home is high for an extended period of time.
Recirculation Recirculates existing household air without in-
troducing fresh air. Recirculation modes (II and
V) are not applicable if your HRV is connected
to a forced air system, since your forced air
system already circulates the household air.
Recirculation modes are unavailable on some
models.
* This mode of operation is only available on the Digital 5 Speed / 5 Mode
Control (Y8250).
** Recirculation modes are unavailable on some models.
Wall Mount 2-Speed Dehumidistat/
Ventilation Control (Y8249)
The Wall Mount Dehumidistat/Ventilation Control offers the
following features to control your home’s ventilation. Fur-
nished with HRV/ERV units (non-GDX models only).
NOTE: All GDX models (Canada only) include the Digital
5-Speed / 4-Mode Control furnished as standard.
• Two speed fan setting (LOW / HIGH)
• Standby setting (fan OFF)
• Electronic dehumidistat
• Compatible with wireless timers
• Connect to 3-wire 20 gauge low voltage wire
• Designed to be mounted in a standard 2 x 4” (51 x 102
mm) electrical box or surface mounted to a wall
Figure 6. Wall Mount Dehumidistat/Ventilation
Control (Y8249)
Table 8. Operating Wall Mount Dehumidistat/
Ventilation Control (Y8249)
Mode Description
Turning on the
Control Press and release the ON/OFF button. The light above will
illuminate.
Setting the
Ventilation
Speed
Press and release the Fan button to select LOW or
HIGH fan speed. The corresponding “Indicator Light” will
illuminate. If both LO and Hi indicator lights are off, the fan
is OFF but will turn ON if required by the Dehumidistat or
remote Timer (if installed).
Humidity
Control
Your unit will reduce indoor humidity when outdoor humidity
levels are lower than indoor humidity levels. This feature is
only effective when the outdoor temperature is below 59˚F
(15˚C).
Setting the
Dehumidistat
Press and release the Dehumidistat button until the Dehu-
midistat Light is at the desired setting. After a few seconds
the Dehumidistat light will either ash or be on continu-
ous. A ashing light indicates the humidity level is higher
than the setting and the unit is operating on high speed
ventilation. A continuous light indicates the humidity level
is lower than the setting. The Dehumidistat will override the
current speed setting to HIGH speed. The Dehumidistat
function can be turned OFF by pressing the button until no
Dehumidistat light is on. Refer to the “How the Dehumidi-
stat Works” on page 10 section of this instruction for a
detailed description of Dehumidistat functionality.
IMPORTANT
Only one main control can be installed on the system.
Timers will not function when mode of operation is set
to “OFF”, unless specically installed for that function.
See “Main Control Standby Setting” on page 24 in this
instruction.

12
Digital Five Speed / Five Mode Control
(Y8250)
The Digital 5-Speed / 5-Mode Control offers the most ad-
vanced features to control your home’s ventilation. Fur-
nished as standard with all GDX (Canada only) models.
• Five speed fan setting
• Standby setting (fan speed 0)
• Electronic dehumidistat
• 20/40/60 HIGH speed override button
• Compatible with Wireless Timers (Y8251)
• Easy to read back-lit LCD screen
• Slim-line design
• Connect to 3-wire 20 gauge low voltage wire
Figure 7. Digital 5-Speed / 5-Mode Control (Y8250)
Table 9. Operational Modes
Function Icon
Continuous Ventilation
20 Minutes On, 40 Minutes
Recirculation
20 Minutes On, 40 Minutes OFF
10 Minutes On, 50 Minutes OFF
Continuous Recirculation
Table 10. Digital Control Operations
Mode Description
Turning on the
Control Press and release the ON/OFF button. The light above will
illuminate.
Setting the
Ventilation
Speed
Press and release the Fan button to select one of the ve
fan speeds. The fan speed will be displayed on the screen
beside the Fan symbol . Standby mode (Fan OFF) is
indicated as speed 0. The fan will turn ON if required by a
remote Timer (if installed).
20/40/60 High
Speed Button
Press and release the 20/40/60 High Speed button to tem-
porarily initiate HIGH Fan speed for 20, 40 or 60 minutes.
Press once for 20 minutes, twice for 40 minutes, three
times for 60 minutes and four times to disable. The timer
symbol will appear on the screen and the corresponding
section of the clock will ash to indicate the time interval
selected. When the timer runs out, the unit will return to it’s
previous operating speed.
Setting the
Mode of
Operation There are ve modes of operation available with the Digital
5-Speed / 5-Mode Control. Pressing the Mode button will
display the different modes of operation on the screen.
Setting the
Dehumidistat
The Digital 5-Speed / 5-Mode Control displays the current
indoor humidity in LARGE numbers and the Dehumidistat
setting in SMALL numbers on the screen. If the indoor
humidity is above the set point, the control will initiate HIGH
Fan speed operation in Ventilation mode until the indoor
humidity has been reduced below the set point.
Press and release the Dehumidistat button to adjust the
Dehumidistat setting. The Dehumidistat can be set between
25% RH and 60% RH. To disable the Dehumidistat func-
tion on the control, cycle through the setting until OFF is
displayed. Refer to “How the Dehumidistat Works” on page
10 in this instruction for a detailed description of the
Dehumidistat function.
Reset Button
RESET
The RESET button will clear the current Fan, Timer, Mode
and Dehumidistat settings and set the unit into LOW fan
speed, Ventilation mode and a Dehumidistat setting of 40%.
Service
Indicator
A service indicator appears when the unit requires routine
maintenance. Refer to “Blower Assembly Service (Dealer
Only)” on page 42“ in this instruction. Press and hold the
ON/OFF button for 5 seconds to reset the service indicator
once maintenance has been performed.
Optional Timers (Y2169 and Y8251)
Timers are available as wired or wireless. The Timer will
override the operational mode of the main control (regard-
less of the setting) and initiate HIGH fan speed Ventilation
for 20, 40 or 60 minutes. The HRV will return to your select-
ed operational mode and fan speed setting upon comple-
tion of the timer cycle.
You may wish to have timers installed in the poorest air
quality areas of you home (bathrooms, kitchen etc.).
Using Timers
Press the select button to initiate high speed ventilation for
20, 40 or 60 minutes. The corresponding Status Light will
illuminate to indicate either 20, 40 or 60 minutes of high
speed fan operation. Press the Select Button until the Sta-
tus Lights are no longer illuminated to cancel high speed
timer operation.

13
Wired Timer (Y2169)
The Wired Timer has a lockout mode feature that can be
set to disable the Timer. Set lockout by holding the select
button for ve seconds. Unlock by holding for 5 seconds.
Connect to 3-wire, 20-gauge (min.) low-voltage wire and
install in a standard 2 x 4” (51 x 102 mm) electrical box.
Figure 8. Wired Timer (Y2169)
Wireless 20/40/60 Minute Timer (Y8251)
The Wireless 20/40/60 Minute Timer may be located in a
remote location in the home (ex. Bathroom) when paired
to the main wall control. Wireless Timers have an estimat-
ed range of 40 feet (12 meters) with no obstructions. To
increase the range of a Wireless 20/40/60 Minute Timer,
a Repeater (Y8252) may be used. Multiple timers can be
paired to a single main control. Designed to be mounted in
a standard 2 x 4” (51 x 102 mm) electrical box or surface
mounted to a wall.
Figure 9. Wireless 20/40/60 Minute Timer (Y8251)
Replacing the Battery
The red LED Battery indicator will illuminate when the
battery on the timer needs to be replaced in the Wireless
20/40/60 Minute Timer . Replace the battery by:
• Pull the face plate off the wall.
• Replace the battery located on the back of the Timer
Face Plate.
• Re-attach the face plate to the back plate. Be careful
not to damage the tabs on the back plate when reat-
taching the face plate.
Back Plate
Face Plate
Figure 10. Replacing the Battery
Wireless Repeater (Y8252)
The Wireless Repeater is used to extend range of the Wire-
less Timers (Y8251). The wireless repeater plugs directly
into a 120V power outlet.
The Repeater should be installed at the halfway point be-
tween the Wireless 20/40/60 Minute Timer and the main
wall control if the timer is out of range.
Indicator LEDs
When the Repeater is positioned correctly, a solid green
LED will illuminate indicating the Repeater has a strong
connection to the main wall control and may be moved far-
ther away if necessary.
Figure 11. Wireless Repeater (Y8252)

14
Overview of Installation Methods
There are three methods of installation for the HRV/ERV:
• Simplied installation - See “Installation Methods - Sim-
plied (Return/Return)” on page 14.
• Partially dedicated installation - See “Installation Meth-
ods - Partially Dedicated” on page 15.
• Fully dedicated installation - See “Installation Methods -
Fully Dedicated” on page 16.
Sizing the Ductwork
The installer must ensure all ductwork is sized and installed
as designed to ensure the system will perform as intended.
The amount of air that the HRV/ERV unit will deliver is di-
rectly related to the total external static pressure (E.S.P.) of
the system. Static pressure is a measure of resistance im-
posed on the blower by length of ductwork plus the number
of ttings used in the ductwork.
Installing Ducting Between the HRV/ERV Unit and Liv-
ing Areas in the House
A well designed and installed ducting system will allow the
HRV/ERV to operate at its maximum efciency.
All ducts should be kept short and have as few bends or
elbows as possible to maximize airow. Forty-ve degree
elbows are preferred to 90º elbows. Use Y tees instead of
straight tees whenever possible.
All duct joints must be fastened with screws, rivets or duct
sealant and wrapped with mastic or quality duct tape to pre-
vent leakage. Mastic is preferred but if duct tape is used it
should be the aluminum foil type.
Galvanized (rigid) ducting from the HRV/ERV to the living
areas in the house is recommended whenever possible al-
though exible duct can be used in moderation, if neces-
sary.
A short length (approximately 12 inches [300 mm]) of
non-metallic exible insulated duct should be connected
between the HRV/ERV and the supply/exhaust duct system
to avoid possible noise transfer through the duct system.
All ducts running through attics and unheated spaces must
be sealed and insulated to code.
IMPORTANT
Applications such as greenhouses, atriums, swimming
pools, saunas, etc. have unique ventilation requirements
which should be addressed with an isolated ventilation
system.
Installation Methods - Simplied (Return/
Return)
The simplied method draws stale air from the cold air re-
turn duct of the air handler/furnace and introduces an equal
amount of fresh air farther downstream into the cold air re-
turn as illustrated in the following gures.
Key points
The HRV/ERV unit must be balanced.
• It is mandatory (to eliminate recirculation) that either the
furnace blower run continuously or HRV/ERV unit oper-
ation be interlocked with the furnace blower.
• The duct conguration may change depending on the
HRV/ERV model. See specications for your unit.
• Check local codes and authority having jurisdiction for
acceptance.
Figure 12. Simplied Installation (Return/Return)

15
Installatio
n Notes
See unit specications for exact port locations.
Unit is normally balanced on HIGH speed with the furnace blower ON.
A minimum separation of 40” (1 m) is recommended between the two direct connections.
The exhaust air connection should be upstream of the supply air connection to prevent exhausting any fresh air.
Weatherhood arrangement is for drawing purposes only. Six feet (2 m) minimum separation is recommended. The
weatherhood must be 18" (460 mm) above grade minimum.
The airow must be conrmed on site using the balancing procedures found in this manual.
Forced Air
Furnace
Cool Air
Return
36"
(914mm) Min.
Recommended
Dampers for
Balancing
Airows
40" (1 m)
Minimum
Outdoors
Return
Air Return Air
Leaf Hinge
Install the Backdraft Damper with the leaf hinge vertical.
The
5" (127 mm) Backdraft Damper (Y3728)
6" (152 mm) Backdraft Damper (Y3727)
Spring−Loaded
Backdraft
Damper
Figure 13. Simplied Installation (Return/Return)
Installation Methods - Partially Dedicated
Partially Dedicated Installation
The partially dedicated installation draws stale air from spe-
cic points in the house and introduces an equal amount of
fresh air into the cold air return as illustrated in the following
gures.
Figure 14. Partially Dedicated System
Stale air ducts should be installed in areas of the home
where the poorest indoor air quality exists (bathrooms and
kitchen). Each location with a stale air duct should have a
timer to initiate high−speed ventilation. Refer to “Optional
Timers (Y2169 and Y8251)” on page 12.
The air handler/furnace blower should be running when the
HRV is operating to evenly distribute the fresh air through-
out the house. Refer to “Interlocking HRV/ERV Blower to Air
Handler/Furnace Blower” on page 24.
Key points
The HRV/ERV must be balanced.
• It is recommended that the furnace blower run continu-
ously or HRV/ERV operation be interlocked with the fur-
nace blower to evenly distribute the fresh air throughout
the house. Refer to building code.
• The duct conguration may change depending on the
HRV/ERV model. See specications for your unit.
• Check local codes and authority having jurisdiction for
acceptance.

16
Installation Notes
See unit specications for exact port locations.
Unit is normally balanced on HIGH speed with the furnace blower ON.
Weatherhood arrangement is for drawing purposes only. Six feet (2 m) minimum
separation is recommended. The weatherhood must be 18" (460 mm) above grade minimum.
The airow must be conrmed on site using the balancing procedures found in this manual.
Forced Air
Furnace
Cool Air
Return
Dampers for
Balancing
Airows
Return Air
Outdoors
EXHAUST AIR from various parts of home.
(i.e. bathrooms, kitchens, utility areas)
36"
(914mm) Min.
Recommended
Leaf Hinge
Install the Backdraft Damper with the leaf hinge vertical.
The
5" (127 mm) Backdraft Damper (Y3728)
6" (152 mm) Backdraft Damper (Y3727)
Spring−Loaded
Backdraft
Damper
Figure 15. Direct Connection of Supply Air Stream to the Furnace Cold Air Return
(Stale air drawn from key areas of home)
Installation Methods - Fully Dedicated
The fully dedicated installation draws stale air from specic
points in the house and delivers fresh air to specic loca-
tions of the house. This system is not connected to an air
handler/furnace (see the following gures).
Figure 16. Fully Dedicated System
Stale air ducts should be installed in areas of the home
where the poorest indoor air quality exists (bathrooms and
kitchen). Each location with a stale air duct should have a
timer to initiate high−speed ventilation. Refer to “Optional
Timers (Y2169 and Y8251)” on page 12.
Fresh air ducts should be installed to all bedrooms and
living areas, excluding bathrooms, kitchen, and utility ar-
eas. Grilles should be located high on a wall or in ceiling
locations. Grilles that diffuse the air comfortably are recom-
mended. Refer to “Installing Grilles and Diffusers” on page
19. Special care should be taken in locating grilles if the
oor is the only option available. Areas such as under base-
board heaters will help to temper the air.
Optional in-line duct heaters are available for mounting in
the supply air duct work to add heat if required.
Key points
• The HRV/ERV must be balanced.
• The duct conguration may change depending on the
HRV/ERV model. See specications for your unit.
• Check local codes and authority having jurisdiction for
acceptance.

17
Installation Notes
See unit specications for exact port locations.
Unit is normally balanced on HIGH speed with the furnace blower ON.
Weatherhood arrangement is for drawing purposes onl y. Six feet (2m) minimum separation is
recommended. The weatherhood must be 18" (460 mm) above grade minimum.
The airow must be conrmed on site using the balancing in this instruction
.
Dampers for
Balancing
Airows
Outdoors
Fresh air to house − main
living areas, bedrooms, liv-
ing room, rec. room, etc.
Stale air from various parts of
home (i.e. bathrooms, kitch-
ens, utility areas)
Figure 17. Fully Dedicated System (Not connected to forced air system)
Installation of the Unit
Location Selection
It is recommended that the HRV/ERV unit be located in a
conditioned space where it will be possible to conveniently
service the unit. Typically the HRV/ERV unit would be locat-
ed in the mechanical room or an area close to the outside
wall where the weather hoods will be mounted. A utility or
laundry room may be used if a basement area is not pres-
ent. Attic installations are not normally recommended for
HRV/ERV units due to:
• the complexity of work to install,
• freezing conditions in the attic,
• difculty of access for service and cleaning.
Sufcient clearance at the front of the access door is re-
quired for servicing the air lters and core.
A minimum of 25 inches (635 mm) clearance is recom-
mended so the door can be opened. Four adjustable hang-
ing straps are provided for hanging the HRV/ERV unit from
the basement oor joists.
Consideration should be given to unforeseen events such
as a clogged drain line or water intrusion due to rain. This
may cause water to form below the HRV/ERV. The use of
an auxiliary drain pan under the installation should be con-
sidered.
CAUTION
If possible, avoid installing units above areas or
equipment that are sensitive to water damage. Otherwise,
the use of an auxiliary drain pan under the installation is
recommended.
Suspending the Unit
This is a procedure for suspending the unit using adjustable
hanging straps. Use four screws and washers (eld-pro-
vided) to attach the hanging straps to the oor joists. The
washer must be wider than the eyelet of the grommet on
the hanging strap. By design, the adjustable hanging straps
reduce the possibility of noise, resonance, and harmonics.
1. Insert the screws and washers (eld provided) through
the hanging strap grommets and fasten to the joists.
Buckles
Joist
Hanging Strap Grommets
Hand Loops
Screws and Washers
(eld provided)
Straps
Figure 18. Insert Screws and Washers
2. Unscrew the four machine screws located on the upper
side of the unit. Attach the Shooks and reinsert the
machine screws.
NOTE: The following illustration of the unit may vary from
the unit you are installing.

18
Figure 19. Unscrew
3. Hook the bottom grommets of the straps through the
S hooks. Pull down vertically on the hand loops while
lifting up the bottom of the cabinet. Repeat at opposite
end of the unit.
NOTE: Do not pull the hand loops in a horizontal direction
(laterally with the unit) during installation or during
adjustment of the straps.
Pull down
hand loops...
while
lifting
up on unit
Buckles
Figure 20. Hook the Grommets
4. Level the unit from left to right and front to back.
• Adjust the unit down by lifting up on the buckles.
• Adjust the unit up by pulling down vertically on the
hand loops while lifting up the bottom of the cabinet.
5. Fold the hand loops and excess strap and secure with a
nylon tie (eld provided).
Installing the Drain Connection (HRV Unit
Only)
During a defrost cycle, the HRV unit may produce some
condensation. This water should ow into a nearby drain,
or be taken away by a condensate pump.
CAUTION
Potential Freeze Conditions leading to Water Damage.
Condensation can accumulate and cause water damage
to equipment, nished surfaces and structures.
Do not install HRV or route condensate drain lines in
areas that can be subjected to freezing.
Potential Water Damage.
Unit must be installed level to ensure proper condensation
drainage. Avoid installing units above areas or equipment
that are sensitive to water damage. Connect condensate
drains in accordance with national and local codes. P−
Trap and tubing must be located below the HRV door with
a minimum of ¼” per foot downward slope away from unit.
The HRV cabinet has pre-punched holes for the drain as
illustrated in the following gure. Insert the drain spout
through the hole in the drain pan. Be sure to install the
O-ring (if supplied) which seals each spout to the pan.
Tighten the nut which holds the drain spout in place.
Tee
Tie
Drain Hose Plumbing
Hard Pipe Plumbing
Tee
1/2” (13 mm)
I.D. Drain Hose
1/2” (13 mm)
Hard Pipe
Figure 21. P-Trap (HRV Unit Only)
CAUTION
Do not use sealant when installing the drain spout.
Construct a P−Trap using the plastic tee connector (see
“Figure 21. P-Trap (HRV Unit Only)”.
1. Cut two lengths of hose and connect each piece to an
end of the T tting, then connect the other ends to the
two drain spouts.
2. Position the T tting to point upward, and connect the
drain line. Tape or fasten base to avoid any kinks,
creating a ˆtrap.˜
3. Pour a cup of water into the drain pan of the HRV after
the drain connection is complete.

19
This creates a water seal which will prevent odors from be-
ing drawn up the hose and into the fresh air supply of the
HRV.
NOTE: Secondary drain pan may be required to protect
from condensate leakage, especially when unit is
installed above living space.
Installing Grilles and Diffusers
Use adjustable grilles or diffusers to balance the ow rates
into and out of various rooms. The grilles should not be ad-
justed after balancing the unit.
Install grilles or diffusers high on the wall or in the ceiling.
Kitchen grilles must never be connected to a range hood.
Install grilles at least four feet (1.2 m) horizontally away
from the stove.
Install eld-supplied balancing dampers external to the unit
to balance the amount of stale air being exhausted with the
amount of fresh air being brought into the house. Refer to
“Airow Balancing” on page 28.
CAUTION
Potential equipment malfunction or damage.
May require repairs and/or void warranty.
Do not install intake grille within four feet (1.2 m) of a
kitchen stove or cooking surface that emit cooking vapors.
Kitchen Grille
The kitchen grille includes a removable grease lter. Most
building codes require that kitchen grilles be equipped with
a washable grease lter.
Table 11. Kitchen Grille
Size Catalog Number
REMOVABLE
GREASE FILTER
6 x 10”
(152 x 254
mm)
18N48
Round Diffuser
The round diffuser is a fully adjustable grille which provides
superior, quite air distribution. These diffusers are available:
Table 12. Round Diffusers
Size Catalog Number
ROUND DIFFUSER
AIR FLOW
SUPPLY
AIR FLOW
EXHAUST
4” (102 mm) 92E54
5” (127 mm) 92E55
6” (152 mm) 92E56
7” (203 mm) 56N81
Installing Weatherhoods
Installing Ducting from Weatherhoods to the (HRV/
ERV) Unit
The inner and outer liners of the exible insulated duct must
be clamped to the sleeve of the weatherhoods (as close
to the outside as possible) and the appropriate port on the
HRV/ERV. It is very important that the fresh air intake line
be given special attention to make sure it is well sealed. A
good bead of high quality caulking (preferably acoustical
sealant) will seal the inner exible duct to both the HRV/
ERV port and the weatherhood prior to clamping.
To minimize airow restriction, the exible insulated duct
that connects the two outside weatherhoods to the HRV/
ERV unit should be stretched tightly and be as short as pos-
sible.
Twisting or folding the duct will severely restrict airow.
Hard (rigid) ducting which has been sealed and insulated
should be used for runs over 10 feet (3.3 meters). Refer to
local building codes.
Intake Weatherhood Requirements
Observe the following when installing the intake weather-
hood:
• Should be located upstream (if there are prevailing
winds)
• At least six feet (two meters) from the exhaust weath-
erhood
• At least six feet (two meters) away from dryer vents and
furnace exhaust (medium or high efciency furnaces)
• A minimum of at least six feet (two meters) from drive-
ways, oil ll pipes, gas meters, or garbage containers
• At least 18” (457 mm) above the ground, or above the
depth of expected snow accumulation
• At least three feet (1 m) from the corner of the building
• DO NOT locate in a garage, attic or crawl space
• AFTER installing the weatherhood, its outside perime-
ter must be sealed with exterior caulking
Exhaust Weatherhood Requirements
Observe the following when installing the exhaust weath-
erhood:
• At least six feet (two meters) from the ventilation air in-
take
• At least 18” (457 mm) above ground or above the depth
of expected snow accumulation
• At least three feet (one meters) away from the corner of
the building
• Not near a gas meter, electric meter, or a walkway
where fog or ice could create a hazard.
• Not into a garage, workshop, or other unheated space
• AFTER installing the weatherhood, its outside perime-
ter must be sealed with exterior caulking

20
Weatherhoods
Fixed covered weatherhoods have a built−in bird screen
with a ¼” (6 mm) mesh to prevent foreign objects from en-
tering the 12” (305 mm) insulated ducting labeled SUPPLY
and EXHAUST.
Table 13. Fixed Covered Weatherhoods
Size Catalog Number
5” (127 mm) 92E66
6” (152 mm) 95P07
7” (203 mm) 17N11
SCREEN
(side view)
EXTERIOR
1/4" (6 mm)
SCREEN
(front view)
6’ (2 m) min.
recommended
36" (1 m) min.
recommended
OUTSIDE
CORNER
INSIDE
CORNER
18" (460 mm) min. recommended
SUPPLY EXHAUST
Collar is supplied to ensure vapor barrier
is 100% seal to wall plate.
12” (305 mm) galvanized
pipe supplied
Figure 22. Weatherhood Installation
CAUTION
Potential equipment malfunction or damage.
May require repairs and/or void warranty.
Snow accumulation may block airway of weatherhoods.
Install intake and exhaust weatherhoods at least 18
inches (457 mm) above the ground or above the depth of
expected snow accumulation.
Install intake and exhaust weatherhoods with at least 6
feet (1.8 m) distance between openings to prevent short
circuit air routes. Local codes may require a greater
distance between openings.
1. Thermal collar slides over galvanized sleeve of
weatherhood.
2. Fasten thermal collar to belt.
3. Slide insulated exible ducting over the weatherhood’s
galvanized sleeve and fasten to the thermal collar.
4. Hood is hinged to allow for easy access for cleaning
screen.
Dual Hood Kit (Y3813)
The Dual Hood Kit (Y3813) offers the benet of requiring
only one 6˜ (152 mm) hole in the exterior wall to complete
the connections for fresh air intake and stale air exhaust.
The pressure drop/airow charts should be referred to
when matching the Dual Hood to the HRV / ERV.
Equipment Performance with the Dual Hood
These charts and table illustrate the External Static Pres-
sure (ESP) and the corresponding airows of Lennox HRVs
and ERVs, when using the Dual Hood in the system. Per-
form all calculations for duct sizing in the usual manner
(taking into account measured and equivalent lengths).
Table 14. Blower Data with Optional Dual Hood
NOTE: Perform all calculations for duct sizing in the usual manner
(taking into account measured and equivalent lengths).
Model No.
Airow in CFM (L/s) at Nominal
External Static Pressure - in.
w.g. (Pa) Compatible
with Dual
Hood
0.3
(75)
0.4
(100)
0.5
(125)
HRV3-095 66 (31) 60 (28) N/A Yes
HRV3-150-TPD 115 (54) 104 (49) 95 (45) Yes
HRV3-150-TPF 120 (57) 107 (50) 100 (47) Yes
HRV5-150 115 (54) 103 (49) 87 (41) Yes
HRV5-200-TPD 128 (60 120 (57) 110 (52) Yes
HRV3-195 125 (59) 114 (54) 107 (50) Yes
HRV3-300 N/A N/A N/A No
ERV3-150 107 (50) 98 (46) 81 (38) Ye s
ERV3-200 125 (59) 118 (56) 101 (48) Yes
NOTE: Normal system design ESP is 0.3 to 0.5” w.g. (75-125 Pa)
Air Flow - CFM (Pa)
Static Pressure - in w.g. (Pa)
0.30 (75)
0.20 (50)
0.15 (37.5)
0.25 (67.5)
0.10 (25)
0.05 (12.5)
0.40 (100)
0.35 (87.5)
0
20
(9)
40
(19)
60
(28)
80
(38)
100
(47)
120
(57)
140
(66)
Figure 23. Intake Airow Chart
Air Flow - CFM (Pa)
Static Pressure - in w.g. (Pa)
0.30 (75)
0.20 (50)
0.15 (37.5)
0.25 (67.5)
0.10 (25)
0.05 (12.5)
0.40 (100)
0.35 (87.5)
0
20
(9)
40
(19)
60
(28)
80
(38)
100
(47)
120
(57)
140
(66)
Figure 24. Exhaust Airow Chart