Page 11
11. BALANCING THE UNIT
(RNC 1.0 & RNC12 ONLY)
TOOLS REQUIRED TO
BALANCE THE HRV/ERV
• A Magnehelic gauge capable of
measuring 0 to 2.0 inch of water
(0 to 500 Pa) and two (2)
plastic hoses.
• A balancing reference chart located
on the HRV/ERV access door panel.
CONSIDERATION WHEN
BALANCING THE HRV/ERV
• Seal all the unit ductwork with tape.
Close all windows and doors.
• Insure all exhaust devices such as range
hood, dryer and bathroom fans are off.
• That the integrated balancing
dampers located in the collars are
fully open.(Fresh Air damper ref Fig.
11.5, Stale Air damper ref Fig. 11.6)
• Make sure that all filters are clean
and that there is no obstruction in
ductwork
• Make sure that the forced air system
blower is “ON” when connected to an
existing forced air system ductwork.
• If it is a direct duct system installation
ensure forced air system blower
is “OFF”.
IMPORTANT:
Insure the HRV/ERV has
completed the defrost sequence. That
the dehumidistat is deactivated by
turning the round dial to the “OFF”
position, the Range is” NORMAL”, the
mode is “CONT” and the Cycle per Hour
is set at “0/0”.
NOTE:
The unit is considered balanced
even if there is a difference of ±10 cfm
(or ± 5 l/s or 17 m³/h) between the two
air flows
Note to installer:
For installation
purposes, the RNC 1.0 & RNC12 are
designed with pre-determined airflow
speed values that are stored in memory.
The RNC 1.0 & RNC12 platform are
designed and can be equipped with the
Duotrol™ speed & balancing control
system kit. (Item: 102801) This factory
option must be present to control the
motors independently, when more
accurate airflow settings are required
or for testing purposes. Please contact
Greentek at 1-888-724-5211
for further instructions/information
on this process.
BALANCING PROCEDURES WITH INTEGRATED DAMPERS
Step 1:
Place the Magnehelic gauge on a level surface and
adjust the needle to zero.
Step 2:
Connect the two (2) plastic hoses to the gauge on
the HIGH & LOW pressure connections.
Step 3:
Once the total ventilation requirements are
determined, you can start balancing the HRV/ERV.
(Refer to 1. Ventilation Requirements)
Step 4:
Remove the four (4) nylon knock out seals located
on the HRV/ERV access door. (
Ref Fig 11.3
)
Fig 11.3
Fresh
Air
Stale
Air
Remove all four (4)
nylon knock out seals.
Do not discard.
screw
Front
Stale
Air
HIGH
HIGH
HIGH
HIGH
LOW
LOW
LOW
LOW
screw
Front
Fresh
Air
Air Vicié
Air frais
Enlever les quatre
(4) bouchons
à défoncer de nylon.
Ne pas les jeter.
HAUT
HAUT
BAS
BAS
HAUT
HAUT
BAS
BAS
Vis d'adjustement
Devant
Air
vicié
Vis d'adjustement
Devant
Air
frais
Pressure / Pression
Fresh air / Air frais
Stale air / Air vicié
IN. W.G. Pascal
CFM
L/s
CFM
L/s
PO. d’eau
(Pa)
PCM
PCM
0.50
125
-
-
161
76
0.53
132
-
-
159
75
0.56
139
-
-
156
74
0.59
147
-
-
153
72
0.62
154
-
-
149
70
0.65
162
-
-
146
69
0.68
169
-
-
142
67
0.71
177
-
-
138
65
0.74
184
149
70
133
63
0.77
192
147
69
129
61
0.80
199
144
68
124
59
0.83
207
141
67
119
56
0.86
214
138
65
114
54
0.89
222
133
63
109
51
0.92
229
128
60
103
49
0.95
237
123
58
97
46
0.98
244
116
55
91
43
1.01
252
109
51
85
40
1.04
259
101
48
78
37
1.07
267
93
44
71
34
1.10
274
84
40
64
30
1.13
281
74
35
57
27
1.16
289
64
30
50
24
1.19
296
53
25
42
20
1.22
304
41
19
34
16
1.25
311
29
14
26
12
Step 5:
Connect the two (2) plastic hoses from the gauge
to the HIGH & LOW balancing pressure taps on the fresh
or stale air side located on the HRV/ERV access door
(
Ref Fig 11.4
)
Fig 11.4
Fresh
Air
Stale
Air
Remove all four (4)
nylon knock out seals.
Do not discard.
screw
Front
Stale
Air
HIGH
HIGH
HIGH
HIGH
LOW
LOW
LOW
LOW
screw
Front
Fresh
Air
Air Vicié
Air frais
Enlever les quatre
(4) bouchons
à défoncer de nylon.
Ne pas les jeter.
HAUT
HAUT
BAS
BAS
HAUT
HAUT
BAS
BAS
Vis d'adjustement
Devant
Air
vicié
Vis d'adjustement
Devant
Air
frais
Pressure / Pression
Fresh air / Air frais
Stale air / Air vicié
IN. W.G. Pascal
CFM
L/s
CFM
L/s
PO. d’eau
(Pa)
PCM
PCM
0.50
125
-
-
161
76
0.53
132
-
-
159
75
0.56
139
-
-
156
74
0.59
147
-
-
153
72
0.62
154
-
-
149
70
0.65
162
-
-
146
69
0.68
169
-
-
142
67
0.71
177
-
-
138
65
0.74
184
149
70
133
63
0.77
192
147
69
129
61
0.80
199
144
68
124
59
0.83
207
141
67
119
56
0.86
214
138
65
114
54
0.89
222
133
63
109
51
0.92
229
128
60
103
49
0.95
237
123
58
97
46
0.98
244
116
55
91
43
1.01
252
109
51
85
40
1.04
259
101
48
78
37
1.07
267
93
44
71
34
1.10
274
84
40
64
30
1.13
281
74
35
57
27
1.16
289
64
30
50
24
1.19
296
53
25
42
20
1.22
304
41
19
34
16
1.25
311
29
14
26
12
Step 6:
Set the unit on high speed by connecting the Vectra
EHC-1.0 controller to the HRV/ERV, power “ON” and select
the 20MIN/HR operating mode by pressing the “PREF”
button on the Vectra EHC 1.0 control.
ATTENTION:
If there is no control present on the RNC 1.0,
will automatically run on a continuous high speed operating
mode.
Step 7:
To adjust the
(fresh air)
, ensure the plastic hoses
from the gauge are connected to the HIGH & LOW balancing
pressure taps on the fresh air side located on the HRV/ERV
access door. (
Ref Fig 11.4
). Adjust the fresh airflow integrated
balancing damper adjustment screw clockwise until you
reach the calculated fresh airflow requirements. (
Ref Fig
11.5
).
Fig 11.5
Fresh
Air
Stale
Air
Remove all four (4)
nylon knock out seals.
Do not discard.
screw
Front
Stale
Air
HIGH
HIGH
HIGH
HIGH
LOW
LOW
LOW
LOW
screw
Front
Fresh
Air
Air Vicié
Air frais
Enlever les quatre
(4) bouchons
à défoncer de nylon.
Ne pas les jeter.
HAUT
HAUT
BAS
BAS
HAUT
HAUT
BAS
BAS
Vis d'adjustement
Devant
Air
vicié
Vis d'adjustement
Devant
Air
frais
Pressure / Pression
Fresh air / Air frais
Stale air / Air vicié
IN. W.G. Pascal
CFM
L/s
CFM
L/s
PO. d’eau
(Pa)
PCM
PCM
0.50
125
-
-
161
76
0.53
132
-
-
159
75
0.56
139
-
-
156
74
0.59
147
-
-
153
72
0.62
154
-
-
149
70
0.65
162
-
-
146
69
0.68
169
-
-
142
67
0.71
177
-
-
138
65
0.74
184
149
70
133
63
0.77
192
147
69
129
61
0.80
199
144
68
124
59
0.83
207
141
67
119
56
0.86
214
138
65
114
54
0.89
222
133
63
109
51
0.92
229
128
60
103
49
0.95
237
123
58
97
46
0.98
244
116
55
91
43
1.01
252
109
51
85
40
1.04
259
101
48
78
37
1.07
267
93
44
71
34
1.10
274
84
40
64
30
1.13
281
74
35
57
27
1.16
289
64
30
50
24
1.19
296
53
25
42
20
1.22
304
41
19
34
16
1.25
311
29
14
26
12
Fresh
Air
Stale
Air
Remove all four (4)
nylon knock out seals.
Do not discard.
screw
Front
Stale
Air
HIGH
HIGH
HIGH
HIGH
LOW
LOW
LOW
LOW
screw
Front
Fresh
Air
Air Vicié
Air frais
Enlever les quatre
(4) bouchons
à défoncer de nylon.
Ne pas les jeter.
HAUT
HAUT
BAS
BAS
HAUT
HAUT
BAS
BAS
Vis d'adjustement
Devant
Air
vicié
Vis d'adjustement
Devant
Air
frais
Pressure / Pression
Fresh air / Air frais
Stale air / Air vicié
IN. W.G. Pascal
CFM
L/s
CFM
L/s
PO. d’eau
(Pa)
PCM
PCM
0.50
125
-
-
161
76
0.53
132
-
-
159
75
0.56
139
-
-
156
74
0.59
147
-
-
153
72
0.62
154
-
-
149
70
0.65
162
-
-
146
69
0.68
169
-
-
142
67
0.71
177
-
-
138
65
0.74
184
149
70
133
63
0.77
192
147
69
129
61
0.80
199
144
68
124
59
0.83
207
141
67
119
56
0.86
214
138
65
114
54
0.89
222
133
63
109
51
0.92
229
128
60
103
49
0.95
237
123
58
97
46
0.98
244
116
55
91
43
1.01
252
109
51
85
40
1.04
259
101
48
78
37
1.07
267
93
44
71
34
1.10
274
84
40
64
30
1.13
281
74
35
57
27
1.16
289
64
30
50
24
1.19
296
53
25
42
20
1.22
304
41
19
34
16
1.25
311
29
14
26
12
Step 8:
To adjust the
(stale air)
, ensure the plastic hoses
from the gauge are connected to the HIGH & LOW balancing
pressure taps on the stale air side located on the HRV/ERV
access door. (
Ref Fig 11.4
). Adjust the stale airflow integrated
balancing adjustment screw until you reach the calculated
stale airflow requirements. (
Ref Fig 11.6
).
Fig 11.6
Fresh
Air
Stale
Air
Remove all four (4)
nylon knock out seals.
Do not discard.
screw
Front
Stale
Air
HIGH
HIGH
HIGH
HIGH
LOW
LOW
LOW
LOW
screw
Front
Fresh
Air
Air Vicié
Air frais
Enlever les quatre
(4) bouchons
à défoncer de nylon.
Ne pas les jeter.
HAUT
HAUT
BAS
BAS
HAUT
HAUT
BAS
BAS
Vis d'adjustement
Devant
Air
vicié
Vis d'adjustement
Devant
Air
frais
Pressure / Pression
Fresh air / Air frais
Stale air / Air vicié
IN. W.G. Pascal
CFM
L/s
CFM
L/s
PO. d’eau
(Pa)
PCM
PCM
0.50
125
-
-
161
76
0.53
132
-
-
159
75
0.56
139
-
-
156
74
0.59
147
-
-
153
72
0.62
154
-
-
149
70
0.65
162
-
-
146
69
0.68
169
-
-
142
67
0.71
177
-
-
138
65
0.74
184
149
70
133
63
0.77
192
147
69
129
61
0.80
199
144
68
124
59
0.83
207
141
67
119
56
0.86
214
138
65
114
54
0.89
222
133
63
109
51
0.92
229
128
60
103
49
0.95
237
123
58
97
46
0.98
244
116
55
91
43
1.01
252
109
51
85
40
1.04
259
101
48
78
37
1.07
267
93
44
71
34
1.10
274
84
40
64
30
1.13
281
74
35
57
27
1.16
289
64
30
50
24
1.19
296
53
25
42
20
1.22
304
41
19
34
16
1.25
311
29
14
26
12
Fresh
Air
Stale
Air
Remove all four (4)
nylon knock out seals.
Do not discard.
screw
Front
Stale
Air
HIGH
HIGH
HIGH
HIGH
LOW
LOW
LOW
LOW
screw
Front
Fresh
Air
Air Vicié
Air frais
Enlever les quatre
(4) bouchons
à défoncer de nylon.
Ne pas les jeter.
HAUT
HAUT
BAS
BAS
HAUT
HAUT
BAS
BAS
Vis d'adjustement
Devant
Air
vicié
Vis d'adjustement
Devant
Air
frais
Pressure / Pression
Fresh air / Air frais
Stale air / Air vicié
IN. W.G. Pascal
CFM
L/s
CFM
L/s
PO. d’eau
(Pa)
PCM
PCM
0.50
125
-
-
161
76
0.53
132
-
-
159
75
0.56
139
-
-
156
74
0.59
147
-
-
153
72
0.62
154
-
-
149
70
0.65
162
-
-
146
69
0.68
169
-
-
142
67
0.71
177
-
-
138
65
0.74
184
149
70
133
63
0.77
192
147
69
129
61
0.80
199
144
68
124
59
0.83
207
141
67
119
56
0.86
214
138
65
114
54
0.89
222
133
63
109
51
0.92
229
128
60
103
49
0.95
237
123
58
97
46
0.98
244
116
55
91
43
1.01
252
109
51
85
40
1.04
259
101
48
78
37
1.07
267
93
44
71
34
1.10
274
84
40
64
30
1.13
281
74
35
57
27
1.16
289
64
30
50
24
1.19
296
53
25
42
20
1.22
304
41
19
34
16
1.25
311
29
14
26
12
Step 9:
Seal the four (4) balancing pressure taps
with the nylon knock out seals removed in Step 4.
Step 10:
Mark down the balanced air flow rates information
on a label including in the kit. Apply the label to the HRV/ERV
access door for future reference (e.g. date, balance airflow
rate, your name, phone number and business address).
For Balancing Charts,
- Refer to page 16 of this manual
- Visit www.greentek.ca
- Scan QR code with your smartphone
RNC 1.0
Balancing Chart
RNC12
Balancing Chart
NOTE:
Turning the
damper adjustment
screw clockwise
will reduce the
airflow, turning
counterclockwise will
increase the airflow
NOTE:
Turning the
damper adjustment
screw clockwise
will reduce the
airflow, turning
counterclockwise will
increase the airflow
