Table 18 — Fan Performance — 48/50P075 Units with Airfoil Fan
AIRFLOW
0.30
(cfm)
rpm
bhp
15,000
620
3.02
16,000
655
3.52
18,000
725
4.68
20,000
795
6.08
22,000
867
7.75
24,000
939
9.71
26,000
1012
11.99
28,000
1084
14.61
30,000
1157
17.60
AIRFLOW
2.70
(cfm)
rpm
bhp
15,000
984
11.25
16,000
1003
12.06
18,000
1043
13.82
20,000
1088
15.84
22,000
1137
18.15
24,000
1191
20.79
26,000
1247
23.78
28,000
1306
27.12
30,000
1367
30.86
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
AIRFLOW
5.10
(cfm)
rpm
bhp
15,000
1260
20.91
16,000
1276
22.15
18,000
1308
24.71
20,000
1342
27.42
22,000
1378
30.33
24,000
1418
33.51
26,000
1461
37.00
28,000
1507
40.86
30,000
1557
45.12
NOTE(S):
a. If calculating static pressure for a 48 Series unit, be sure to add gas heat pressure drop from Component Pressure Drop table.
b. Fan performance is based on wet coils and clean 2 in. filters.
c. For return fan and high-capacity power exhaust units, add component pressure drop for economizer. Do not add component pressure drop for power exhaust.
d. See Component Pressure Drop data table before using Fan Performance tables.