Caring For Your Furnace - COZY DVCF402D Owner's Manual

CARING FOR YOUR FURNACE

How To Care For Your Furnace
WARNING: Danger of bodily injury or death. Turn
off electric power supply at the disconnect switch, fuse
box or service panel before removing any doors or
access or service panels from the unit.
CABINET FINISH
Clean the cabinet with damp rag. Never use abrasive
cleaners. Cabinets are finished in heat resistant powder
coated finish DO NOT refinish with wall paint.
COMBUSTION AND VENTILATION AIR
he 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 either side of the cabinet.
FURNACE AREA
Keep the area near the furnace clear and free from
combustible materials, gasoline, and other flammable
liquids and vapors.
ANNUAL UPKEEP NEEDED
It is recommended that a qualified service technician
perform these checks at the beginning of each
heating season.
CLEANING AND OILING
Shut off electricity, and 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 Figure 36, below.
FIGURE 28 - MOTOR OIL HOLES
PILOT BURNER
Light pilot using instructions in OPERATING YOUR
FURNACE (on pages 21). Leave thermostat at lowest
setting.
Pilot flame should surround 3/8 to 1/2 inch of the
thermocouple tip. Refer to Figure 30, Page 23. If flame
needs adjusting, do it as follows:
22
COUNTERFLOW DIRECT VENT GAS WALL HEATER
ADJUST PILOT BURNER (Page 23 Figure 30)
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. Turn thermostat to highest setting. Main burners
should light quickly and smoothly. Turn thermostat to
lowest setting. Main burners should go out. Pilot
should remain lit.
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 Figure 30. 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 blocked
or rusted. Clean or replace before using furnace.
FIGURE 29 - MAIN BURNER FLAME PATTERN