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tained. Proper maintenance is critical for your safety
and the satisfactory operation of the product. Lennox
strongly recommends annual inspection and mainte-
nance of this appliance. Contact your independent
Lennox dealer for an inspection by a qualified service
technician.
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BEFORE LIGHTING smell all around the appliance
area for gas. Be sure to smell next to the floor because
some gas is heavier than air and will settle on the
floor.
Unit may be equipped with either a gas control knob
or lever. Use only your hand to push in or turn the gas
control knob or move the gas control lever. Never use
tools. If the knob will not push in or turn or if lever will
not move by hand, do not try to repair it, call a quali-
fied service technician. Force or attempted repair may
result in a fire or explosion.
To place 90UGF furnace into operation:
90UGF units are equipped with a SureLightt ignition
system. Do not attempt to manually light these fur-
naces. Each time thermostat calls for heat, the burn-
ers will be automatically lit by the ignitor. The ignitor
does not get hot when there is no call for heat on units
with the SureLight ignition system.
Gas Valve Operation (Figure 3)
1 - -
! Read the safety information at the begin-
STOP
ning of this section.
2 - - Set thermostat to lowest setting. See figure 2.
7+(50267$76
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3 - - Turn off all electrical power to appliance.
4 - - This appliance Is equipped with an ignition de-
vice which automatically lights the burners. Do
try to light the burners by hand.
not
5 - - Remove upper access panel.
6 - - On Honeywell VR8204 gas valves, turn knob on
gas valve clockwise
ers 36E gas valves, move switch to
force. See figure 3.
HONEYWELL VR8204 SERIES GAS VALVE
GAS VALVE SHOWN IN OFF POSITION
WHITE RODGERS
36E GAS VALVE
GAS VALVE
SHOWN
IN OFF
POSITION
7 - - Wait fifteen (15) minutes to clear out any gas. If
you then smell gas,
your gas supplier from a neighbor’s phone. Fol-
low the gas supplier’s instructions. If you do not
smell gas go to next step.
8 - - For Honeywell VR8204 gas valves, turn knob on
gas
valve
White Rodgers 36E gas valves, move switch to
.
ON
9 - - Replace upper access panel.
10- - Turn on all electrical power to unit.
11- - Set thermostat to desired setting.
NO
TE - - When unit is first started, steps 1 through 11
may need to be repeated to purge air from 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 upper access panel.
4 - - On Honeywell VR8204 gas valves, turn knob on
gas valve clockwise
ers 36E gas valves, move switch to OFF. Do not
force.
5 - - Replace upper access panel.
3DJH
to
. For White Rodg-
OFF
),*85(
! Immediately call
STOP
counterclockwise
to OFF. For White Rodg-
. Do not
OFF
to
.
For
ON
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