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5
UPFLOW FURNACE
SIDE RETURN AIR
FIGURE 5
Blower
Check and clean blower wheel for any debris. Blower
motor is prelubricated for extended bearing life. No
further lubrication is needed.
WARNING
Blower door must be securely in place when blower
and burners are operating. Gas fumes, which could
contain carbon monoxide, can be drawn into living
space resulting in personal injury or death.
Burner Flame
The burner flame is not adjustable; however, the
flame should be inspected at the beginning of each
heating season and burners should be cleaned, if necĆ
essary. Burner flame should be blue when burning
natural gas, blue/yellow when burning propane gas.
BURNER FLAME
BURNER
FLAME
HEAT
EXCHANGER
TUBE
VEST
PANEL
FLAME APPEARS BLUE IF
BURNING NAT. GAS; BLUE/
YELLOW FOR PROPANE.
FIGURE 6
Venting System Inspection
Annually (before heating season) inspect furnace
venting system, vent cap, heat exchanger and burnĆ
ers for corrosion, deterioration, or deposits of debris.
Remove any obstructions.
Contact your dealer for a periodic unit inspection by a
qualified service technician.
Flame Rollout Safety Switches
Your furnace is equipped with two flame roll-out safeĆ
ty switches which shut off the gas supply to the furĆ
nace in case of heat exchanger blockage. If the furĆ
nace fails to operate due to the functioning of these
safety switches, DO NOT attempt to place the furnace
into operation. Contact a qualified service technician.
Safety Reminder
Call a qualified service technician if unit is inoperaĆ
tive. Before calling, always check the following to be
sure service is required.
1 - Check that electrical disconnect switches are ON.
2 - Are access panels securely in place?
3 - Check room thermostat for proper setting.
4 - Replace any blown fuses or reset circuit breakers.
5 - Gas valve should be ON.
6 - Air filter should not be plugged limiting air flow.
7 - Is gas turned on at meter?
8 - Is manual main shutĆoff valve open?
To keep your gas heating system in peak operating
condition year after year, contact your dealer about a
planned service program.
Safety Precautions
If you discover any of the following, shut down your
unit, and contact your dealer for an inspection by a
qualified technician.
S If you repeatedly hear any new or unfamiliar sounds
while your unit is operating, there may be a problem.
For example, poorly performing burners can produce
unfamiliar noises.
S If you smell any unusual odors, your unit may be operĆ
ating improperly. For example, units can give off unfaĆ
miliar odors if components are required to operate in
abnormal conditions.
S Look for visible signs of a malfunctioning unit. ExamĆ
ples include unusual amounts of condensate on winĆ
dows inside your house, visibly burnt components or
unusual dirt or rust accumulations on the vent pipe or
in the unit.