Trane IntelliPak 1 Installation, Operation And Maintenance Manual page 86

U U n n i i t t S S t t a a r r t t u u p p
Figure 55. Supply fan performance with variable frequency drive - 60 ton gas heat, and all 70 and 75 tons cooling
only- direct drive plenum, 120% width
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
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
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
86
1900 RPM
1800 RPM
1700 RPM
1600 RPM
1500 RPM
1400 RPM
1300 RPM
7500 10000 12500 15000
Airflow, CFM
O positive. The static
2
O.
2
17500 20000 22500 25000
N N o o t t e e s s : :
• Shaded areas represent selectable area.
Contact your local Trane ® representative for
more information.
• 70-75 ton gas heat units use 30" DDP fans.
See Figure 58, p.
• 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: 60 ton gas heat and 70, 75 tons -
27,000 Cfm.
• Minimum motor horsepower is 10 hp (2 x 5
hp motors). Maximum motor horsepower is
50 hp (2 x 25 hp motors). Maximum fan RPM
is 1,900.
27500 30000
89.
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