How To Care For Your Furnace
WARNING
DANGER OF BODILY INJURY OR DEATH
TURN OFF ELECTRIC POWER SUPPLY AT
DISCONNECT SWITCH, FUSE BOX OR SERVICE
PANEL BEFORE REMOVING ANY DOORS OR
ACCESS OR SERVICE PANELS FROM UNIT.
CABINET FINISH
Clean cabinet with damp rag. Never use abrasive cleaners.
Cabinets are finished in heat resistant baked enamel - DO
NOT refinish with wall paint.
COMBUSTION AND VENTILATION AIR
The combustion and ventilation air supply must not be
blocked.
Do not put anything in or on the furnace cabinet.
For better circulation and more effective heating, do not
place obstructive furniture closer than four feet to the front
of the cabinet or two feet to the side of the cabinet.
FURNACE AREA
Keep the area near the furnace clear and free from com-
bustible materials, gasoline, and other flammable liquids
and vapors.
ANNUAL UPKEEP NEEDED
It is recommended that a qualified service technician per-
form these checks at the beginning of each heating
season.
CLEANING AND OILING
Shut off electricity, then remove cabinet door and front
panel. Clean any lint or dirt from fan blades, fan motor,
and exposed air passages. Use a brush.
Put 5 drops of SAE 20 oil in each of the two cups or oil
tubes on the fan motor, See Fig. 39, below.
MOTOR OIL HOLES
FAN
MOTOR
OIL 1UBES
OR
OIL CUPS
ON EACH
_ND OF
MOTOR
PILOT BURNER
Light pilot using instructions in OPERATING YOUR
FURNACE (on pages 25 through 30, depending on your
model). Leave thermostat at lowest setting.
Pilot flame should surround 3/8 to 1/2 inch of the thermo-
couple tip. Refer to Fig. 42, Page 32. If flame needs
adjusting, do it as follows:
ADJUST PILOT BURNER (see Fig. 42, page 32)
1. Remove screw cover over pilot adjusting screw.
2. Insert small screwdriver, Adjust flame as needed. Turn
screw counterclockwise ( _ ) to increase flame,
clockwise ( _ ) to decrease.
3. Turnthermostat to highest setting. Main burnersshould
light quickly and smoothly. Turn thermostat to lowest
setting. Main burners should go out. Pilot should re-
main lit except for electronic ignition models.
4. Replace screw cover over pilot adjusting screw.
BURNER FLAME
Start the furnace and let it operate about 10 minutes then
look at the burner flame. Flames should be soft and blue,
see Fig. 40. If flames appear abnormal, contact the gas
company or a qualified service technician immediately.
VENTING SYSTEM
Make sure that no parts of the vent air system are block-
ed or rusted. Clean or replace before using furnace.
MAIN BURNER FLAME PATTERN
CORRECT
le4SUFflCiENE AIR LONG OPEN
ENI) (_ONES YELtOW IN COLOR
INNER CONES LIGHT BLUE POINTED TOP
OUTER MANTLE LIGHT BLUE
PROPER FLAME I/2 Io 3/4 HIGH
--31--
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