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9 - Replace control access panel.
10- Turn on all electrical power to unit.
11- Set thermostat to desired setting.
NOTE-When unit is first started, steps 1 through 11 may
need to be repeated to purge air from gas line.
12- If the appliance still will not operate, follow the
instructions “To Turn Off Gas To Unit” and call your
service technician or gas supplier.
To Turn Off Gas To Unit
1 - Set thermostat to lowest setting.
2 - Turn off all electrical power to unit if service is to be
performed.
3 - Remove control access panel.
4 - Turn knob on White Rodgers gas valve 180
q
either way
to OFF; turn knob on Honeywell valve clockwise
to
OFF. Do not force.
5 - Replace control access panel.
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 in-
jury or death.
BURNER FLAME
The G24E burner flame is not adjustable; however,
the flame should be inspected at the beginning of
each heating season and burners should be cleaned,
if necessary. Burner flame should be blue when burn-
ing natural gas, blue/yellow when burning propane
gas.
BURNER FLAME
FIGURE 4
BURNER
FLAME
HEAT
EXCHANGER
TUBE
VEST
PANEL
FLAME APPEARS BLUE IF
BURNING NAT. GAS; BLUE/
YELLOW FOR PROPANE.
VENTING SYSTEM INSPECTION
Annually (before heating season) inspect furnace
venting system, vent cap, heat exchanger and burn-
ers for corrosion, deterioration, or deposits of debris.
Remove any obstructions.
Contact your Lennox dealer for a periodic unit inspec-
tion by a qualified service technician.
FLAME ROLLOUT SAFETY SWITCHES
Your Lennox furnace is equipped with two flame roll--
out safety switches which shut off the gas supply to
the furnace in case of heat exchanger blockage. If the
furnace 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.
SERVICE REMINDER
Call your Lennox service technician if unit is inopera-
tive. Before calling, always check the following to be
sure service is required.
1 - Check that electrical disconnect switches are ON.
2 - Check room thermostat for proper setting.
3 - Replace any blown fuses or reset circuit breakers.
4 - Gas valve should be ON.
5 - Air filter should not be plugged limiting air flow.
6 - Is gas turned on at meter?
7 - Is manual main shut-off valve open?
To keep your Lennox gas heating system in peak op-
erating condition year after year, contact your inde-
pendent Lennox dealer about a planned service pro-
gram.
