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59RT-PRC010-EN
Note:
1. Important: Maximum static pressure leaving the rooftop is 4.0” H2O positive. The static pressure drops from the supply fan to the space cannot exceed 4.0” H2O.
Figure PD-8 — Supply Fan Performance WITH INLET VANES — 60, 70 and 75 Tons
(60, 70, 75 Tons)Performance
Data
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
0 3000 6000 9000 12000 15000 18000 21000 24000 27000 30000 33000 36000
CFM
STATIC PRESSURE, Inches w.c.
S_HFC60, C70, C75
Dual 22 X 22 Fans
Entrance Losses
- w ith Inlet Guide Van
e
- w ithout Evap Coil
- w ithout Filters
- w ithout Return Air D
a
- w ithout Exhaust
Fan Curve Limits
- Minimum Motor HP =
1
- Maximum Motor HP =
- Maximum RPM = 113
0
- Maximum CFM
C60 = 27,000
C70 & C75 = 30,
- Maximum Static Pres
s
Leaving the Unit = 4.
0
1000 RPM
900 RPM
800 RPM
700 RPM
600 RPM
500 RPM
1100 RPM
1200 RPM
7.5 HP
10 HP
15 HP
20 HP
25 HP
30 HP
40 HP
50 HP
90% w ocfm
80%
50%
40% wocfm
70%
60%