Shutting Down Your Furnace - Payne PG9MAA User's Information Manual

11. When the furnace receives the start signal, the hot surface igniter at the main burners is automatically heated for 15 to 20 sec. When
the microprocessor control verifies that there is sufficient heat to ignite, the gas valve permits gas to flow to the main burners. After
ignition and a time delay of about 40 to 70 sec, the furnace blower will start.
NOTE: If the burners fail to ignite after 4 attempts, the furnace control system will lock out. If lockout occurs, the main burners fail
to light, or blower does not come on, shut down the furnace and call your dealer for service.
12. Set your thermostat to the temperature that satisfies your comfort requirements.
SUGGESTION: Setting the thermostat back a few degrees and compensating for the difference with warmer clothing can
make a big difference in your fuel consumption on extremely cold days. The few degrees at the top of your thermostat
"comfort level" are the most costly degrees to obtain.
When room temperature drops below the temperature selected on the thermostat, the furnace will be switched on automatically.
When room temperature reaches the temperature selected on the thermostat, the furnace will be switched off automatically.
Some thermostats have a FAN mode with 2 selections, AUTO and ON. When thermostat is set to AUTO, the furnace blower
cycles on and off, controlled by the thermostat. In ON mode, the furnace blower runs continuously except for a 40-70 sec.
delay at the "call for heat". This keeps the temperature level in your home more evenly balanced. It also continuously filters
the indoor air.

SHUTTING DOWN YOUR FURNACE

Should you need to shut down your furnace for service or maintenance, you will need to turn the furnace off.
The following procedures must be followed:
1. Set your room thermostat to the lowest temperature setting. (See Fig. 18.)
2. Close the external manual gas valve. (See Fig. 19.)
3. Turn off electrical supply to the furnace. (See Fig. 20.)
4. Remove main furnace door. (See Fig. 9.)
5. Turn control switch or knob on the gas valve to OFF position. (See Fig. 21 or 22.)
6.
Replace main furnace door. (See Fig. 14.)
7. If the furnace is being shut down because of a malfunction, call your dealer as soon as possible.
!
CAUTION: Furnace is not to be installed, operated, and then turned off and left turned off in an unheated
structure during winter. (See winterizing procedures in maintenance section).
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