10
ALL WIRING MUST
BE DONE BY A
QUALIFIED
ELECTRICIAN
Predrilled holes are provided on the back of the furnace for
mounting the fan center electrical box.
The flexible conduit connecting the high limit control to the
fan center electrical box has been sized longer for the model
1800. This conduit may be cut shorter to provide a cleaner
installation on model 1600.
NOTE: Extra BROWN wire on the Fan Center has no use-
cap off or pull out.
FAN
CENTER
HIGH
LIMIT
CONTROL
THERMOSTAT
ELECTRICAL INSTALLATION
DRAFT WIRING DIAGRAM
TO
THERMOSTAT
TO
"R"
TO
"G"
FAN
CENTER
W
W
W
W
L1
1
3
WIRES TO
BLOWER
MOTOR
PLASTIC
KNOB
SET
SCREW
NUT
PUNCH
GR
FLEXIBLE CONDUIT
TO HIGH LIMIT
CONTROL
BLUE
RED
BLK
BLK
BLUE
BLACK
TO DRAFT
RED
BLK
ELECTRICAL BOX
2
BLACK
BLUE
Wired to "C" on
fan center front
Wired to "G" on
fan center front
Red-
To Draft
Black-
To High Limit
GND
REAR VIEW
3-SPEED SWITCH
MODEL "B" SHOWN
(SEE WIRING DIAGRAM
ON PAGE 10 FOR
WIRING OF MODEL "A"
SWITCH)
HOUSE
CURRENT
SWITCH
LABEL
BLK
