Trane IntelliPak 1 Installation, Operation And Maintenance Manual page 76

U U n n i i t t S S t t a a r r t t u u p p
Figure 45. Supply fan performance with or without variable frequency drive - 40, 50 and 55 tons air-cooled, - forward
curved
8.0
1200 RPM
7.5
7.0
1100 RPM
6.5
6.0
1000 RPM
5.5
5.0
900 RPM
4.5
4.0
800 RPM
3.5
3.0
700 RPM
2.5
2.0 600 RPM
1.5
500 RPM
1.0
0.5
0.0
0 2000 4000 6000
I I m m p p o o r r t t a a n n t t : : Maximum static pressure leaving the
rooftop is 4.0" H
pressure drops from the supply fan to the
space cannot exceed 4.0" H
76
8000 10000 12000 14000
Airflow, CFM
O positive. The static
2
O.
2
16000 18000 20000 22000
N N o o t t e e s s : :
• Fan performance for 40 and 50 to 55 ton
rooftops is identical. Contact your local
Trane ® representative for information on
oversized motors.
• Shaded areas represent selectable area.
Contact your local Trane ® representative for
more information.
• Supply fan performance curve includes
internal resistance of rooftop. For total static
pressure determination, system external
static must be added to appropriate
component static pressure drops
(evaporator coil, filters, optional economizer,
optional relief fan, optional heating system,
optional cooling only extended casing,
optional roof curb).
• Maximum Cfm (for cULus approval) as
follows: 40 ton - 18,000 Cfm and 50 ton -
22,500 Cfm.
• Minimum motor horsepower is 7.5 hp.
Maximum motor horsepower is 30 hp.
Maximum ½ hp to 15 hp fan Rpm is 1,141
Rpm, maximum 20 hp to 30 hp fan Rpm is
1,170 Rpm.
70%
80%
90%
24000 26000
RT-SVX072A-EN