Wiring Guide

TB-217
WIRING DIAGRAM FOR
Model# RAC or FAC Switch
Remote Damper Control
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 732-446-3110 FAX [phone]
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P/N 090375A0217 REV. A Copyright EWC Controls, Inc. 2004
Install and wire up an optional RAC or FAC switch to achieve direct manual control of (1) or
more, Air Conditioning Dampers or Fresh Air dampers. Move the switch to instantly power the
damper(s) Open or Closed. Can be used with most Power Open/Power Close type dampers. Can
also be used on Power Open/Spring Close type dampers. NOTE: Some older style dampers
cannot be wired in parallel. A Green LED will illuminate when the switch is in the OPEN position.
TM
OPEN
CLOSE
FRESH AIR DAMPER
TM
OPEN
CLOSE
AIR CONDITIONING
DAMPER
1
4
2
5
3 6
SWITCH
INTERNAL
WIRE
Field Supplied
TRANSFORMER
24V, 40VA
4
6
1
To Line Voltage
Provide Over
Current Protection
FAC
Front Plate
RAC
Front Plate
To More Dampers
so long as the VA rating
of your transformer can
handle it.
4 - 5 dampers
per 40va
transformer.
Switch Ratings
10A 250vac
15A 125vac
3/4HP 125-250vac
UL, CSA listed
ND or URD Dampers