Heading South For The Winter - Payne PG9MAA User's Information Manual

combustion area and vent are free from any cracks and sags. Check the combustion-air intake adjacent to the furnace or outside your
home for blockage. Also check the vent pipe on the outside of your home for blockage.
When dirt, soot, scale, or rust is allowed to build up, your furnace can suffer a loss of efficiency and perform improperly. Accumu-
lations on the main burners can result in firing out of normal sequence. This delayed ignition creates an alarmingly loud sound.
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CAUTION: If your furnace makes an especially loud noise when the main burners light, shut down your fur-
nace and call your dealer. Failure to follow this caution would result in minor property damage.
To inspect the combustion area and vent system, you will need a flashlight. Refer to Fig. 1, and proceed as follows:
1. Turn off gas and electrical supplies to the furnace and remove the main furnace door. (See Fig. 7 and 8.)
2. Remove burner enclosure front. (See Fig. 30 or 31.)
Inspect the gas burners, igniter area, and remainder of furnace for dirt, soot, rust, or scale.
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CAUTION: If dirt, rust, soot, or scale accumulations are found, call your dealer. Do not operate your furnace. Failure
to follow this caution would result in minor property or product damage.
3. Inspect the combustion-air and vent PVC pipes for sags, holes, cracks, or disconnections. Horizontal portions of vent pipe
must slope downward toward furnace.
4. Reinstall burner enclosure front.
5. If your furnace is free of the above conditions, replace main furnace door and turn on electrical and gas supplies to the
furnace. (See Fig. 12, 13, and 14.)
6. Start your furnace and observe its operation. Watch the burner flames to see if they are clear blue, almost transparent. (See
Fig. 32.) If you observe a suspected malfunction, or the burner flames are not clear blue, call your dealer.

HEADING SOUTH FOR THE WINTER?

DON'T FORGET YOUR FURNACE!
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CAUTION: If the furnace is installed in an unconditioned space where the ambient temperatures may be
32°F or lower, freeze protection measures must be taken to prevent minor property or product damage.
Since the furnace uses a condensing heat exchanger, some water will accumulate in the unit as a result of the heat transfer process.
Therefore, once it has been operated, it cannot be turned off and left off for an extended period of time when temperatures will reach
32°F or lower unless winterized. Follow these procedures to winterize your furnace:
1. Obtain propylene glycol (RV/swimming pool antifreeze or equivalent).
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CAUTION: Do not use ethylene glycol (Prestone II antifreeze coolant or equivalent). Failure of plastic com-
ponents will occur.
30
UPFLOW
32
10
31
DOWNFLOW