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ELECTRICAL CONNECTIONS MODELS 155, 200, 245, 235, 315, 350
All electrical wiring must meet National Electrical Code, N.F.P.A. #70 for furnaces installed in
U.S., and C.S.A. Standard C22.1, Canadian Electrical Code, Park 1, for Canada.
Install a panel mounted breaker for single phase 115V max 30 AMP grounded service. Run
minimum of 10 gauge wire in metal conduit to the 6” x 6” junction box at furnace. Do this with
the power still “OFF”. TIP: If the main breaker is far from the heater, installing a manual switch
or breaker near the heater may be required by code. It is also handy for cutting main power in an
emergency or for servicing.
For field wiring of oil pump and accessories use min 14 gauge wiring.
[ BOLD Print is Field Wiring ]
Main power feed from panel; Hot, Neutral, Ground Prewired Blower Hot, Neutral
Oil Pump Hot, Neutral
(hot is opposite red burner wire)
Prewired Fan Limit Black, Blue, and Red Prewired Burner Cord
(blue feeds black burner, red feeds blower)
1. Connect burner power cord coming from junction box to mating connection on burner. Do
note force internal moldings, they permit only one orientation of connection. Tighten
locking ring to secure. Run cord through clamp located on top of cabinet, remove
slack from burner cord, clamp and secure. This will prevent burner door from
swinging open and burner capable of firing. Disconnect molded cord to open door
and service burner.
2. Install the room wall thermostat in work area to be heated. Mount it level or accuracy of
settings will be affected. Run 18-2 wire between the thermostat , the snap disc on cabinet ,
and screws labeled T-T on primary control. Set the room thermostat in the “OFF” position.
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