Electrical box on WHF
POW
E
R
POW
E
R
WH
F
WHF High Speed
WHF High Speed
WHF Low Speed
Connects
Connects
Not Used.
Not Used. CUT OFF AT PCB.
Not Used. CUT OFF AT PCB.
WHF Neutral and
WHF Neutral and
120VAC Neutral
120VAC Neutral
WHF Ground and
WHF Ground and
Power Ground
Power Ground
Power 120VAC
Power 120VAC
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)
Power
Cord or
Romex
For 1 speed WHFs, the red and yellow wires are not
used and need to be cut off at the PC board. Use wire
nuts to connect the FC3JU wires to the WHF wires and
the incoming 120VAC power wires. Orient the FC3JU
and electrical box as shown.
Model FC3JU
Ground
screw
Electrical box on WHF
POW
E
R
POW
E
R
WH
F
Power
Cord or
Romex
For 2-speed WHFs, the yellow wire is not used and
needs to be cut off at the PC Board. Use wire nuts to
connect the FC3JU wires to the WHF wires and the
incoming 120VAC power wires. Orient the FC3JU and
electrical box as shown.
Model FC3JU
Ground
screw
Wiring FC3JU to 1-Speed PSC or ECM
Wiring FC3JU to 2-Speed PSC
INSTALLATION
Check the wiring information provided with the WHF to determine the wire colors and their functions corresponding
to High and Low speeds.
i
FC3JU Fan Control
Wire Function
Wire Color
High Speed
Low Speed
Med Speed
120VAC
Neutral
Ground
RED
YELLOW
PURPLE
BLACK
WHITE
GREEN
FAN High Speed
FAN Low Speed
FAN Med Speed
POWER 120VAC
FAN Neutral
FAN Ground
RED
YELLOW
PURPLE
BLACK
WHITE
GREEN
Wire Function
POWER 120VAC Neutral
WHITE
POWER Ground
GREEN
Typical
Wire Color
Actual Wire Color
(if different than typical)
Whole House Fan, Model #________________
5
