22
Make Electrical Connections
Thermostat
Install a room thermostat according to the instructions furnished
with it. Select a location on an inside wall that is not subject to
drafts, direct sunshine, or other heat sources.
Make the low voltage thermostat connections to the ignition
control board as indicated on the Wiring Connection Diagram in
the “Troubleshooting” section.
1. Disconnect power.
2. Remove the screw from the furnace electrical connection
box.
3. Remove the cover from the furnace electrical connection box.
4. Route the field supply wires to the furnace electrical
connection box.
5. Using UL listed wire connectors, connect the field supply
wires to the furnace (black to black and white to white).
6. Connect ground wire to green ground screw.
7. Replace the furnace electrical connection box cover and
screw.
Make Gas Connections
IMPORTANT: This furnace requires conversion for use with
propane. To order the correct conversion kit, see “Accessories.”
1. Install the field gas supply as shown.
2. Provide a sediment trap on the outside of the furnace.
3. Install a manual gas shutoff valve in the gas line, outside the
furnace, 5 ft (1.5 m) above the floor, or in accordance with any
local codes.
4. Install a test gauge connection with a
¹⁄₈
" (3.2 mm) NPT
plugged tap immediately upstream of the manual gas shutoff
valve as shown.
5. Connect the gas pipe to the furnace controls providing a
ground joint union as close to the controls as possible to
facilitate removal of controls and manifold.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
A. Connect white to white and black to black
B. Green ground screw
WARNING
Electrical Shock Hazard
Electrically ground furnace.
Connect ground wire to green ground screw.
Failure to do so can result in death or electrical shock.
A
B
Summary of Contents for WFCT
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