INSTALLATION
9
Model FC3J
Model FC3J
For 2-speed ECM WHFs, the yellow wire is not used and
should be cut off at the PC board. Use wire nuts to connect the
FC3J wires to the WHF wires and the incoming 120VAC power
wires. Orient the FC3J and electrical box as shown.
Use wire nuts to connect the FC3J wires to the WHF wires and
the incoming 120VAC power wires. Orient the FC3J and
electrical box as shown.
Electrical box on WHF
Electrical box on WHF
Ground
screw
Ground
screw
Power
Cord or
Romex
Power
Cord or
Romex
P
O
W
E
R
P
O
W
E
R
P
O
W
E
R
P
O
W
E
R
W
H
F
W
H
F
W
H
F
W
H
F
Wiring FC3J to 2-Speed ECM WHF
Wiring FC3J to 3-Speed ECM WHF
Connecting to RM2 Radio Module
The FC3J and RM2 are connected using the 7-foot RJ11
cable provided with the FC3J. The RM2 can be attached
to a surface (not metal) using the two mounting tabs or
left suspended by the RJ11 cable.
Plug one end of the cable into the FC3J and the other
end into the RM2 Radio Module. See step 6.
FC3J
WHF Control Board
RM2 Radio Module
RJ11 7-foot cable
supplied with FC3J
Connect FC3J to Radio Module 2)
WHF High Speed (Note1)
WHF High Speed (Note1)
WHF Low Speed (Red)
WHF Low Speed (Red)
WHF ed Speed (Yellow)
Connects
Connects
Not Used. CUT OFF AT PCB
WHF Neutral (White) and
WHF Neutral (White) and
120VAC Neutral (White)
120VAC Neutral (White)
WHF Ground (Green) and
WHF Ground (Green) and
Power Ground (Green)
Power Ground (Green)
Power 120VAC (Black)
Power 120VAC (Black)
High Speed (Purple)
High Speed (Purple)
FC3J Wire
FC3J Wire
Low Speed (Red)
Low Speed (Red)
Med Speed (Yellow)
Med Speed (Yellow)
Neutral (White)
Neutral (White)
Ground (Green)
Ground (Green)
120VAC (Black)
120VAC (Black)
i
The optional TS3 Outdoor Temperature Sensor should
be installed under the eaves of the home and out of
direct sun light. The outdoor temperature sensor is used
to delay WHF operation when the outdoor temperature is
too warm to provide cooling.
Use 2-conductor AWG 20 to 24 wire to connect the
temperature sensor to the ODT terminals on the RM2
Radio Module. The sensor is not polarized.
Optional Outdoor Temperature Sensor3)
RM2 Radio Module
ODT
ODT