29
ELECTRICAL WIRING
7. Using a flat screwdriver, squeeze the retaining arms on the
door switch and gently pry the door switch from it’s opening.
8. Install the door switch in the same opening on the opposite
of the furnace and reconnect the electrical connectors (re-
moved in Step 2) to the door switch.
THERMOSTAT
See Thermostat Wiring Diagrams section for thermostat
connections. The room thermostat must be compatible
with the furnace. See manufacturer’s thermostat spec
sheet for compatability concerns. Generally, all thermo-
stats that are not of the “current robbing” type are compati-
ble with the integrated furnace control. The low voltage
wiring should be sized as shown.
NOTE:
Do not use 24 volt control wiring smaller than No.
18 AWG.
Install the room thermostat in accordance with the instruc-
tion sheet packed in the box with the thermostat. Run the
thermostat lead wires inside the blower compartment and
connect to low voltage terminals as shown on the wiring di-
agram. Never install the thermostat on an outside wall or
where it will be influenced by drafts, concealed hot or cold
water pipes or ducts, lighting fixtures, radiation from fire-
place, sun rays, lamps, televisions, radios or air streams
from registers.
REVERSING ELECTRICAL CONNECTION & THERMOSTAT
Electrical Wiring
ST-A1194-59-00
ST-A1194-60-00
FIGURE 23
ISOLATION RELAY
FIGURE 24
LINE VOLTAGE CONNECTIONS