Trane IntelliPak RA 20

102
RT-SVX063E-EN
Component Static Pressure
Drops
Table 53. Static pressure drops — relief dampers
Nominal Tons CFM
Relief Damper
Pressure Drop
(in w.c.)
20-40 Single Fan
2,000
0.04
4,000
0.16
6,000
0.37
8,000
0.65
10,000
1.02
30-55 Dual Fan
4,000
0.04
6,000
0.09
8,000
0.16
10,000
0.26
12,000
0.37
14,000
0.5
16,000
0.65
18,000
0.83
20,000
1.02
22,000
1.24
60-75 Dual or Three-Fan Array
6,000
0.07
8,000
0.12
10,000
0.19
12,000
0.27
14,000
0.37
16,000
0.48
18,000
0.61
20,000
0.75
22,000
0.91
24,000
1.08
26,000
1.27
28,000
1.47
Notes:
1. Relief damper static pressure drop is used only for relief fan selections.
2. Use Relief CFM to determine pressure drop to add to return duct static
pressure for relief fan selection.
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