Trane RT-PRC010-EN Manual page 53

Figure PD-5 — Supply Fan Performance With VARIABLE FREQUENCY DRIVE or WITHOUT INLET VANES — 40, 50 and 55 Tons
8.0
7.5
1200 RPM
7.0
6.5
6.0
1100 RPM
5.5
5.0
1000 RPM
4.5
4.0
900 RPM
3.5
800 RPM
3.0
2.5
700 RPM
2.0
5 HP
600 RPM
1.5
500 RPM
1.0
0.5
0.0
0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 22000 24000 26000 28000 30000
Note:
1. Important: Maximum static pressure leaving the rooftop is 4.0" H
RT-PRC010-EN
Performance
Data
30 HP
25 HP
20 HP
15 HP
10 HP
7.5 HP
CFM
O positive. The static pressure drops from the supply fan to the space cannot exceed 4.0" H
2
40 HP
50%
(40, 50, 55 Tons)
SQHFC40, C50, C55
Dual 20 X 20 Fans
Entrance Losses
- w ithout Inlet Guide Vanes
- w ithout Evap Coil
- w ithout Filters
- w ithout Return Air Dampers
- w ithout Exhaust
Fan Curve Limits
60%
- Minimum Motor HP = 7.5
- Maximum Motor HP
C40 = 25 HP
C50 & C55 = 30 HP
70%
- Maximum RPM
7.5 - 15 HP = 1141
20 - 30 HP = 1170
80%
- Maximum CFM
C40 = 18,000
C50 = 22,500
C55 = 24,000
90%
- Maximum Static Pressure
Leaving the Unit = 4.0" w .c.
2
O.
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