120
RT-SVX36G-EN
Unit Start Up
0
Figure 51. 40 & 50, 55 / 48 & 59 ton supply fan performance
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
STATIC PRESSURE, Inc
h
e
s
w.c
.
40 HP
7.5 HP
10 HP
15 HP
20 HP
25 HP
30 HP
1200 RPM
600 RPM
700 RPM
800 RPM
900 RPM
1000 RPM
1100 RPM
500 RPM
5 HP
40% w
o
cf
m
50%
60%
70%
S_HL* 40 & 50, 55, 48 & 59 Ton
Dual 20 X 20 Fans
Entrance Losses
- without Evap Coil
- without Filters
- without Return Air Dampers
- without Exhaust
Fan Curve Limits
- Minimum Motor HP = 7.5
- Maximum Motor HP
*
40,
*
50 = 30 HP
- Maximum RPM
7.5 - 15 HP = 1141
20 - 30 HP = 1170
- Maximum CFM
*40 = 18,000
*50 = 22,500
- Maximum Static Pressure
Leaving the Unit = 4.0" w.c.
90%
80%
*55 = 24,750
Figure 52. 60-75, 73-89 ton supply fan performance
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_HL*60, *70, *75 Ton
*73, *80, *89 Ton
Dual 22 X 22 Fans
Entrance Losses
- without Evap Coil
- without Filters
- without Return Air Dampers
- without Exhaust
Fan Curve Limits
- Minimum Motor HP = 10
- Maximum Motor HP = 40
- Maximum RPM = 1130
- Maximum CFM
60 = 27,000
70* & 75* = 30,000
- Maximum Static Pressure
Leaving the Unit = 4.0" w.c.
600 RPM
40% w
oc
fm
7.5 HP
700 RPM
800 RPM
900 RPM
1000 RPM
1100 RPM
1200 RPM
50%
70%
80%
90% wocfm
10 HP
15 HP
20 HP
25 HP
30 HP
40 HP
50 HP
500 RPM
60%
