
CHECK THERMOSTAT OPERATION
When checking thermostat, option switch #4 for automatic changeover must be in the OFF position. This will allow temporary setting of heat set points above cool settings. After system checkout, reset option switch to ON position if automatic changeover is desired (see SET OPTION SWITCHES).
FAN OPERATION
1.Turn on power to the system. If the auxiliary heat source has a standing pilot, be sure to light it.
HEATING SYSTEM OPERATION
1. Press | SYSTEM | until HEAT is displayed. (It should |
already be displayed.)
2.Press to adjust thermostat to 99°F. All stages of the heating system should come on within approximately five minutes. However, if the PUMP LED is flashing, the compressor lock- out feature is operating (see Lockout Bypass Option to temporarily override the compressor lockout feature during testing).
2. Press | FAN |
ON – AUTO |
until FAN
NOTE
is displayed. The
3. Press | SYSTEM | until EMER is displayed. Repeat |
step 2.
blower should begin to operate.
3. Press | FAN | until FAN | is displayed. The |
ON – AUTO |
blower should stop operating within approxi- mately one minute.
4.To program the thermostat, see PROGRAM-
MING YOUR THERMOSTAT.
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