SHUTDOWN
INSTRUCTIONS
TO TURN OFF GAS
TO FURNACE
CAUTION: Should overheating
occur, or the gas supply fail to shut
off, shut off the manual shut-off
valve to the furnace before shut-
ting off the electrical supply..
1. Set thermostat to the lowest setting.
2. Turn off all electrical power to the
furnace if service is to be performed.
3. Remove the control access panel.
4. Turn the knob on the gas control
clockwise to OFF.
5. Replace the control access panel.
YOUR FURNACE’S
FILTER -
WHAT IT DOES
The filter in your furnace takes the lint
and dust out of the air that passes
through it. This keeps dirt particles from
getting into the moving parts of the fur-
nace, where they could cause serious
damage. It also keeps the dirt from cir-
culating through your home.
As the filter continues to collect these
particles, it becomes clogged and no
longer allows enough air to circulate
through the furnace. If this happens, the
heat exchangers and blower motor
could overheat; a potentially dangerous
situation. It is very important to keep the
air filter clean!
Never operate your furnace without a
suitable air filter.
FREQUENCY OF
CHECKING FILTERS
Clean your furnace’s filter at least every
three months. If you need to replace a
filter, check the filter chart to be sure you
install the right size and type of filter for
your furnace.
If your home is new, you should check
the filter every week for the first four
weeks after you begin to use the fur-
nace, and then at least every three
weeks after that, especially if the system
runs constantly.
LOCATING/REMOVING
FILTERS
Most upflow furnaces have their filters
located on the side or bottom of the
furnace, inside the blower compartment.
Some models may have the filter located
in an accessory such as a single side
return filter frame.
If your furnace has a single side return
filter frame accessory like the one
shown, slide the filters out of the acces-
sory through the slot on its side.
To check filters located in the blower
compartment, remove the blower com-
partment panel.
NOTE: The spring-loaded safety
cutoff switch, mounted under the
blower deck in the control box will
automatically cut off the electrical
power supply to the furnace when
the blower panel is removed.
A filter mounted on the side of the fur-
nace can be removed by pushing down
on the looped end of the wire filter re-
tainer until it clears the lip of the furnace
casing.
The retainer may be swung toward the
center of the furnace, exposing the filter
for removal. Reverse the procedure to
reinstall filters.
GAS VALVE
DROP LEG
GROUND JOINT UNION
MAY BE INSTALLED
INSIDE OR OUTSIDE UNIT
TO GAS
SUPPLY
EXTERNAL MANUAL
SHUTOFF VALVE
TO GAS
SUPPLY
DROP LEG
WHITE-RODGERS 36E98 VALVE
FILTER RETAINER
TYPICAL GAS PIPING
FILTER FRAME
®
Wiring
Terminals
Outlet
Main
Regulator
Adjust
Wrench
Boss
ON - OFF Switch
Inlet
Outlet
Pressure
Tap
WHITE-RODGERS 36E24 VALVE
3
