S&P HR100V Installation And Wiring Instructions - page 11
Page 11
Connecting the Magnehelic gauge to the collar balacing taps, then proceed to section 13 (on page 10)
Duotrol
TM
Balancing System Procedures and follow the Steps 1 through Step 8.
12. BALANCING THE UNIT (CONTINUED)
WITH THE DUOTROL
SYSTEM AND
THE INTEGRATED
BALANCING TAPS
AND MAGNEHELIC
GAUGE.
BALANCING CHART
The balancing chart is based
on a Delta P (DP) measurement
(also located on the access
panel of the ventilation system)
NOTE: To perform a proper
install, the External Static
Pressure (ESP) needs to be
measured at each of the 4
stations. Then proceed to
measure the Delta P(DP) to
determine the corresponding
airflow (e.g. 50 CFM), then
do the iteration until the unit is
balanced both the (ESP and
airflows).
HIGH (Exhaust Air to Outside)
LOW (Exhaust Air from Home)
LOW (Fresh Air from Outside)
HIGH (Fresh Air to home)
HIGH (Exhaust Air to Outside)
LOW (Exhaust Air from Home)
Magnehelic gauge
Magnehelic gauge
Balancing Tap Connection
*
LOW (Fresh Air from Outside)
HIGH (Fresh Air to home)
Balancing Chart when using collar pressure taps.
Pressure
Fresh Air
Exhaust Air
Pa
in. wg
L/s
CFM
L/s
CFM
50
0.20
44
93
43
90
62
0.25
41
87
40
85
75
0.30
39
83
37
79
87
0.35
37
79
36
77
100
0.40
35
74
36
76
112
0.45
33
69
34
71
125
0.50
30
65
32
67
137
0.55
29
61
28
60
150
0.60
26
56
24
51
162
0.65
24
50
22
47
175
0.70
22
46
19
41
187
0.75
19
41
17
36
199
0.80
17
36
15
31
WITH AN
AIRFLOW GRID &
MAGNEHELIC GAUGE
Magnehelic Gauge with Air Flow Grid
Inserting Air flow grid in duct
Seal Air flow grid in duct with duct tape.
*IMPORTANT: Once balancing is complete, insure all four pressure taps are sealed with the rubber caps.
Pressure taps (9753K74) supplied in the installation kit.