Assembly of Furnace
Your furnace requires the following items to be as- sembled or installed by the service person:
Feed Door Pull Handle Feed Door Locking Handle Blowers and Blower Controls Electrical Connections
1.Remove all parts from inside the furnace and in- spect for damage, including the firebrick as some breakage could occur during shipment.
2.Assemble the Damper Box Assembly to the Feed Door and the Black Knob to the Damper Box if not already installed. Ensure the damper operates by sliding the knob up and down. Damper should operate freely with slight tension.
3.Attach feed door locking handle as in Figure 14 with screws and nuts provided. Note: Slotted holes are for adjustment of handle. Adjust handle until some pressure is required to lock feed door during firing sequence.
4.Install the thermodisc on rear of furnace cabinet with the two screws provided. Mount the conduit assembly from the junction box to the thermostat bracket. Crimp the two female terminals to each of the wire leads. Plug the wires to the thermodisc. NOTE: It does not matter which of the two wires plugs to which terminal on the thermodisc.
5.Remove blowers from cartons. Remove junction box cover. Attach clip nuts as in Figure 15. Install blower(s) and gasket(s) with
6.Wire right side blower first (See wiring diagram) and replace cover on junction box on blower.
7.Wire left blower same as above and replace cover.
8.Check operation of shaker grates with grate handle before operating furnace.
Figure 13
Figure 14
THERMODISC
THERMODISC 
COVER
4” ELECTRICAL JUNCTION BOX
BLOWERS
BLOWERS GASKET | CLIP NUTS | |
(Not used in the upper center hole.) | ||
|
Figure 15
(Model 1357M has only one blower)
13
