55
RT-PRC010-EN
Note:
1. Important: Maximum static pressure leaving the rooftop is 4.0” H
2
O positive. The static pressure drops from the supply fan to the space cannot exceed 4.0” H
2
O.
Figure PD-6 — Supply Fan Performance WITH INLET VANES — 40, 50 and 55 Ton
(40, 50, 55 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
2000
4000
6000
8000 10000 12000 14000 16000 18000 20000 22000 24000 26000 28000 30000
CFM
STATI
C
PRESSURE,
I
n
c
h
e
s
w.
c
.
40%
w
o
cfm
50%
60%
70%
1200 RPM
500 RPM
600 RPM
700 RPM
800 RPM
900 RPM
1000 RPM
1100 RPM
5 HP
7.5 HP
10 HP
15 HP
20 HP
25 HP
30 HP
40 HP
S_HFC40, C50, C55
Dual 20 X 20 Fans
Entrance Losses
- w ith Inlet Guide Vanes
- w ithout Evap Coil
- w ithout Filters
- w ithout Return Air Dampers
- w ithout Exhaust
Fan Curve Limits
- Minimum Motor HP = 7.5
- Maximum Motor HP
C40 = 25 HP
C50 & C55 = 30 HP
- Maximum RPM
7.5 - 15 HP = 1141
20 - 30 HP = 1170
- Maximum CFM
C40 = 18,000
C50 = 22,500
C55 = 24,000
- Maximum Static Pressure
Leaving the Unit = 4.0" w .c.
90%
80%
