ELECTRICAL INSTALLATION
Predrilled holes are provided on the back of the furnace for mounting the fan center electrical box. Mounting holes and knockouts are also provided to accommodate mounting the high limit control in either the upper left or upper right corner.
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.
REAR VIEW
ALL WIRING MUST THERMOSTAT
BE DONE BY A
QUALIFIED
ELECTRICIAN
HIGH
FAN 
LIMIT
CENTERCONTROL
CONDUIT 
TO HOUSE 
CURRENT 
Wired to "G" on
DRAFT WIRING DIAGRAM
fan center front
BLACK
Wired to "G" on fan center front
BLUE
RED
ELECTRICAL BOX
BLACK
TO DRAFT
Red- To Draft
Black-
To High Limit
BLK 
BLUE
BLK
RED
BLUE
FLEXIBLE CONDUIT TO HIGH LIMIT CONTROL
TO THERMOSTAT
TO "R"
TO "G"
BLK | BLK | GND | |
GR | |||
| |||
|
|
2
1
3
W
W
L1
| W |
| |
| WIRES TO | HOUSE | |
| BLOWER | ||
| CURRENT | ||
FAN | MOTOR | ||
| |||
CENTER |
| ||
|
|
WMODEL "B" SHOWN
(SEE WIRING DIAGRAM
ON PAGE 10 FOR
WIRING OF MODEL "A"
SWITCH)
SWITCH
LABEL
PUNCH
NUT
SET
SCREW
PLASTIC
KNOB
9
