Trane IntelliPak 1 Installation, Operation And Maintenance Manual page 81

Figure 50. Supply fan performance with variable frequency drive - 50, 55 tons, 40 ton gas heat - direct drive plenum,
120% width
8.0
7.5
1600 RPM
7.0
6.5
1500 RPM
6.0
5.5
1400 RPM
5.0
1300 RPM
4.5
4.0
1200 RPM
3.5
1100 RPM
3.0
1000 RPM
2.5
2.0
1.5
1.0
0.5
0.0
0 2500 5000
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
RT-SVX072A-EN
1700 RPM
7500 10000 12500
Airflow, CFM
O positive. The static
2
O.
2
1800 RPM
15000 17500 20000 22500
N N o o t t e e s s : :
• 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: 50, 55 tons - 22,500 Cfm.
• Minimum motor horsepower is 5 hp.
Maximum motor horsepower is 30 hp.
Maximum fan RPM is 1,700.
U U n n i i t t S S t t a a r r t t u u p p
25000 27500
81