Trane INTELLIPAK Installation Operation & Maintenance page 73

Figure 4-4
20 & 25 Ton Supply Fan Performance with Inlet Guide Vanes
8.0
1700 R P M
7.5
7.0
1600 R P M
6.5
1500 R P M
6.0
5.5
1400 R P M
5.0
4.5 1300 R P M
4.0
1200 R P M
3.5
1100 R P M
3.0
1000 R P M
2.5
900 R P M
2.0
800 R P M
1.5
700 R P M
1.0
600 R P M
500 R P M
0.5
0.0
0 2000 4000
30 Ton Supply Fan Performance with Inlet Guide Vanes
8.0
7.5
7.0
1400 RPM
6.5
6.0 1300 RPM
5.5
1200 RPM
5.0
4.5
1100 RPM
4.0
3.5 1000 RPM
3.0
900 RPM
2.5
800 RPM
2.0
700 RPM
1.5
600 RPM
1.0
500 RPM
0.5
0.0
0 4000
20 HP
15 HP
10 HP
7.5 HP
5 HP
3 HP
6000 8000 10000
CFM
20 HP
15 HP
10 HP
7.5 HP
5 HP
3 HP
8000
CFM
50%
60%
12000 14000 16000
25 HP
12000 16000
73
S_HF*20 & 25 Ton
Entrance Losses
- with Inlet Guide Vanes
- without Evap Coil
- without Filterts
- without Return Air dampers
- without Exhaust Fan
Fan Curve Limits
- Minimum Motor HP = 3
- Maximum Motor HP
70%
*20 &*25 = 15 HP
- Maximum RPM
3 HP - 5 HP = 1100
7.5 HP - 15 HP = 1655
- Maximum CFM
80%
*20 = 9,000
*25 = 11,000
- Maximum Static Pressure
Leaving the Unit = 4.0" w.c.
90%wocfm
18000 20000
S_HF*30
Dual 18 X 18 Fans
Entrance Losses
- with Inlet Guide Vanes
- without Evap Coil
- without Filters
- without Return Air Dampers
50%
- without Exhaust
Fan Curve Limits
- Minimum Motor HP = 5
- Maximum Motor HP = 20
- Maximum RPM = 1379
60%
- Maximum CFM = 13,500
- Maximum Static Pressure
Leaving the Unit = 4.0" w.c.
70%
80%
90% wocfm
20000