Table PD-13 — Supply Fan Performance — 40 and 50 Ton
0.25
0.50
SCFM
RPM
BHP RPM
12000
365
3.02
408
13000
388
3.73
427
14000
412
4.54
448
15000
436
5.46
471
16000
460
6.53
493
17000
485
7 .72
516
18000
509
9.06
540
19000
534
10.54 563
20000
560
12.18 587
Notes:
1. Fan performance table includes internal resistances of cabinet, and 2" standard filters. For other components refer to component static pressure drop table. Add the
pressure drops from any additional components to the duct (external) static pressure, enter the table, and select motor bhp.
2. The pressure drop from the supply fan to the space cannot exceed 2.50".
3. Maximum air flow for 40 ton — 17,600 cfm, 50 ton — 20,000 cfm.
4. Maximum motor horsepower for 40 ton — 15 hp, 50 ton — 20 hp.