Owners Manual

7
Specifications subject to change without notice.
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PERSONAL INJURY HAZARD
Failure to follow this caution may result in personal
injury.
Use care when cutting support rods in filters to protect
against flying pieces and sharp rod ends. Wear safety
glasses, gloves, and appropriate protective clothing.
CAUTION
!
COMBUSTION AREA AND VENT SYSTEM
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
For proper and safe operation the furnace needs air for
combustion and ventilation. Do not block or obstruct air
openings on the furnace, air opening to the area in
which the furnace is installed, and the space around the
furnace.
!
WARNING
UNIT OPERATION HAZARD
Failure to follow this caution may result in personal
injury.
Failure to follow this warning could result in personal
injury or death.
For proper and safe operation the furnace needs air for
combustion and ventilation. Do not block or obstruct air
openings on the furnace, air opening to the area in
which the furnace is installed, and the space around the
furnace.
CAUTION
!
Inspect the combustion area and vent system before each
heating season. An accumulation of dirt, soot, or rust can
mean a loss of efficiency and improper performance. Buildups
on the main burners can cause faulty firing. This “delayed
ignition” is characterized by an alarmingly loud sound.
NOTE: If your furnace makes a loud noise when the main
burners are ignited, shut down the furnace and call your
servicing dealer.
Use your flashlight and follow these steps for inspecting the
combustion area and vent system of your furnace:
1. Turn off electrical supply to the furnace and remove the
access door. (See Figure 8 and Figure 9)
2. Carefully inspect the gas burner for dirt, rust, or scale.
Inspect the elbow, flue connection area, and the vent
pipe for rust.
Figure 14 − Burner Flame
A92330
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury or death.
If dirt, rust, soot, or scale accumulations are
found, call your dealer. Do not operate your
furnace.
!
WARNING
3. Inspect the vent pipe for a sag, holes, or a disconnection.
A horizontal vent pipe must slope upward away from
furnace. If rusty joints or seams, or signs of water
leakages are found, call your dealer for service.
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal
injury or death.
If holes are found or if the vent pipe is obstructed or is
not connected, toxic fumes can escape into your home.
DO NOT OPERATE YOUR FURNACE. Call your dealer
for service.
!
WARNING
4. Restore electrical power to the furnace. (See Figure 9)
5. Start the furnace and observe its operation. If possible,
watch the burner flames. Are they burning bright blue? If
not or if you suspect some other malfunction, call your
servicing dealer.
6. Replace the access door. (See Figure 10)