Lennox International Inc. G23 - Manual (Page 4)

Page 4
Gas Valve Operation (Figure 3)
1- STOP! Read the safety information at the beginning
of this section.
2- Set thermostat to lowest setting. See figure 2.
THERMOSTATS
FIGURE 2
3- Turn off all electrical power to appliance.
4- This appliance is equipped with an ignition device
which automatically lights the burners. Do not try to
light the burners by hand.
5- Remove upper access panel.
6- On Honeywell VR8204 gas valves, turn knob on gas
valve clockwise to OFF. For White Rodgers 36E
gas valves, move switch to OFF. Do not force the
switch. See figure 3.
GAS VALVE SHOWN IN OFF POSITION
FIGURE 3
ON
OFF
HONEYWELL VR8204 SERIES GAS VALVE
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, STOP! Immediately call your gas
supplier from a neighbor's phone. Follow 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 counterclockwise to ON. For White RodgĆ
ers 36E gas valves, move switch to ON. Do not force.
9- Replace upper 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 line.
12- If the appliance still will not operate, follow the inĆ
structions To Turn Off Gas To Unit" and call your serĆ
vice technician or gas supplier.
Turning Off The Gas To The 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 to OFF. For White Rodgers 36E
gas valves, move switch to OFF. Do not force.
5- Replace upper access panel.
Filters
A filter must be in place anytime the unit is in operation. The
filter may be located in the unit (optional kit) or installed in a
return air grille. Ask your dealer to show you the filter location.
The filter should be inspected monthly and cleaned when
necessary to assure proper furnace operation.
Filters used inside the G23 series unit are available from LenĆ
nox and must be ordered separately. These foam filters may
be cleaned for reuse. If replacement is necessary, order LenĆ
nox part no. 31J81 for 14 X 25 inch filter for G23Q2-50,
Q3-50 and Q2/3-75 units, P-8-7822 for 16 X 25 inch filter for
G23Q3-100 units, and P-8-7831 for 20 X 25 inch filter for
G23Q3/4-100, Q3/4-125, Q4/5-75, Q4/5-100, Q5/6-125 and
Q5/6-150 units. Use the following procedure to clean filter.
Refer to figure 1.
In-Unit Filter with Bottom Return Air
1- Turn off electric power to furnace.
2- Remove blower access panel.
3- Remove filter by pressing side filter clips and pulling filter
up and out. See figure 4.
FIGURE 4
BOTTOM RETURN FILTER INSTALLATION
FURNACE
BASE BOTĆ
TOM
REAR FILTER CLIP
RETURN AIR OPENING
SIDE FILTER CLIPS (2)
FURNACE
FRONT
FURNACE
BACK
4- Clean filter with cold water and a mild soap. Direct
water through filter in the opposite direction of air
flow. Remove all soap residue.
5- Allow filter to dry then spray with filter handicoater
(P-8-5069), available from your Lennox dealer, prior
to reinstallation.