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10 RT-PRC031-EN
Features and Benefits
Supply Fans with Inlet Guide
Vanes
Trane airfoil fans with inlet guide
vanes pre-rotate the air in the
direction of the fan wheel, decreasing
static pressure and horsepower,
essentially unloading the fan wheel.
The unloading characteristics result
in superior part load performance.
Variable Frequency Drives
(VFD)
Variable Frequency Drives are factory
installed and tested to provide
supply/exhaust/return fan motor
speed modulation. VFD's, as
compared to inlet guide vanes or
discharge dampers, are quieter, more
efficient, and may be eligible for
utility rebates. The VFD's are
available with or without a bypass
option. Bypass control will simply
provide full nominal airflow in the
event of drive failure.