Figure 4-2 – Trane INTELLIPAK ™ ™ ™ ™ ™ Commercial Single-Zone Rooftop Air Conditioners with CV or VAV Control User Manual
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Figure 4-2
20 & 25 Ton Supply Fan Performance without Inlet Guide Vanes
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
CFM
STATIC PRESSURE, Inc
h
e
s
w
.c
.
40% w
o
cfm
50%
60%
S_HFC20 & 25 Ton
Dual 15 X 15 Fans
Entrance Losses
- without Inlet Guide Vanes
- without Evap Coil
- without Filters
- without Return Air Dampers
- without Exhaust Fan
Fan Curve Limits
- Minimum Motor HP = 3
- Maximum Motor HP
C20 & C25 = 15 HP
- Maximum RPM
3 HP - 5 HP = 1100
7.5 HP - 15 HP = 1655
- Maximum CFM
C20 = 9,000
C25 = 11,000
- Maximum Static Pressure
Leaving the Unit = 4.0" w.c.
90%
80%
70%
1700 RPM
1600 RPM
1500 RPM
1400 RPM
1300 RPM
1200 RPM
1100 RPM
1000 RPM
900 RPM
800 RPM
700 RPM
600 RPM
500 RPM
15 HP
10 HP
7.5 HP
5 HP
3 HP
20 HP
30 Ton Supply Fan Performance without Inlet Guide Vanes
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
CFM
STATIC PRESSURE, Inches w.c.
1400 R P M
800 R P M
900 R P M
1000 R P M
1100 R P M
1200 R P M
1300 R P M
600 R P M
700 R P M
500 R P M
S_HFC30
Dual 18 X 18 Fans
Entrance Losses
- without Inlet Guide Vanes
- without Evap Coil
- without Filters
- without Return Air Dampers
- without Exhaust
Fan Curve Limits
- Minimum Motor HP = 5
- Maximum Motor HP = 20
- Maximum RPM = 1379
- Maximum CFM = 13,500
- Maximum Static Pressure
Leaving the Unit = 4.0" w.c.
5 HP
7.5 HP
10 HP
25 HP
15 HP
20 HP
3 HP
40%
w
o
c
fm
50%
60%
80%
90% wocfm
70%