59
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-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
S
T
A
T
IC
P
R
E
S
S
U
R
E
, In
c
h
e
s
w
.c
.
S_HFC60, C70, C75
Dual 22 X 22 Fans
Entrance Losses
- w ith Inlet Guide Vane
- w ithout Evap Coil
- w ithout Filters
- w ithout Return A ir Da
- w ithout Exhaust
Fan Curve Limits
- Minimum Motor HP = 1
- Maximum Motor HP =
- Maximum RPM = 1130
- Maximum CFM
C60 = 27,000
C70 & C75 = 30,
- Maximum Static Press
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 ocf m
80%
50%
40%
wocf
m
70%
60%