Trane IntelliPak Installation, Operation And Maintenance Manual page 114

Unit Start Up
Figure 76. Supply fan performance with variable frequency drive - 70 and 75 ton air-cooled, 80 and 89 ton evaporative
condensing - direct drive plenum, 120% width
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
1300 RPM
3.5
1200 RPM
3.0
1100 RPM
2.5
1000 RPM
2.0
1.5
1.0
0.5
0.0
0 2500 5000
Figure 77. Supply fan performance with or without variable frequency drive - 90 ton air-cooled
114
1900 RPM
1800 RPM
1700 RPM
1600 RPM
1500 RPM
1400 RPM
7500 10000 12500 15000
Airflow, CFM
17500 20000 22500 25000
S_HL*70 & 75/89 Ton
Dual 27" 120% Width
DDP Fan
Entrance Losses
- without Evap Coil
- without Filters
- without Return Air Dampers
- without Exhaust Fan
Fan Curve Limits
- Minimum Total Motor HP = 10 (2x5HP)
- Maximum Total Motor HP = 50 (2x25HP)
- Maximum Fan RPM = 1900
- Maximum CFM = 27,000
- Maximum Static Pressure Leaving the
unit = 4.0" w.c.
27500 30000
RT-SVX36K-EN