Filter
Top Products
6
2. Remove filter cabinet door (See
Fig. 18 and 19.)
NOTE:
It will be necessary to re-
move 1 thumbscrew
3. Slide air filter out of filter cabinet.
Keep dirty side up (if dirty) to avoid
spilling dirt. See Fig. 20 and 21.)
4. Inspect the filter. If torn, replace it.
NOTE:
If washable filter that was
shipped with the furnace has been re-
placed by:
a) Factory specified disposable media
filter – Do not clean. If dirty, replace only
with media filter having the same part
number and size. Install with airflow di-
rection arrow pointing towards blower.
b) Electronic air cleaner (EAC) – Re-
fer to EAC owner’s Manual for mainte-
nance information.
5. Wash filter (if dirty) in sink, bath-
tub, or outside with a garden hose.
Always use cold tap water. A mild
liquid detergent may be used if nec-
essary. Spray water through filter in
the opposite direction of airflow.
Allow filter to dry.
6. Reinstall clean air filter.
7. Replace filter cabinet door. (See
Fig. 22 and 23.)
8. Turn on electrical supply to furnace
(see Fig. 12.)
*
Factory provided with the furnace.
Filters may be field modified by cutting
filter material and support rods (3) in fil-
ters. Alternate sizes and additional fil-
ters may be ordered from your dealer.
AIR FILTER LOCATED IN FILTER CABINET:
FILTER
CABINET
HEIGHT (IN.)
FILTER SIZE
(IN.)
FILTER
TYPE
16 (1)16x25x1*
or (1)16x25x4-5/16
Cleanable
Disposable
CAUTION
Use care when cutting support
rods in filters to protect
against flying pieces and
sharp rod ends. Wear safety
glasses, gloves, and appropri-
ate protective clothing. Failure
to follow this caution could re-
sult in personal injury.
!
COMBUSTION AREA
AND VENT SYSTEM
Inspect the combustion area and vent
system before each heating season. An
accumulation of dirt, soot, or rust can
mean a loss of efficiency and improper
performance. Buildups on the main
burners can cause faulty firing. This
“delayed ignition’’ is characterized by
an alarmingly loud sound. If your fur-
nace makes a loud noise when the main
burners are ignited, shut down the fur-
nace—call your servicing dealer.
Use your flashlight and follow these
steps for inspecting the combustion
area and vent system of your furnace:
1. Turn off the electrical supply to the
furnace and remove the access
door. (See Fig. 7 and 8.)
2. Carefully inspect the gas burner
(see Fig. 17) for dirt, rust, or scale.
Then inspect the elbow, flue con-
nection area, and the vent pipe for
rust.
17
NOTE:
If dirt, rust, soot, or scale accu-
mulations are found, call your servic-
ing dealer. DO NOT OPERATE THE
FURNACE.
3. Inspect the vent pipe for a sag,
holes, or a disconnection. A hori-
zontal vent pipe must slope upward
away from furnace. If rusty joints
or seams, or signs of water leakages
are found call your dealer for ser-
vice.
4. Replace the access door and restore
electrical power to the furnace.
(See Fig. 12.)
5. Start the furnace and observe its
operation. If possible, watch the
burner flames. Are they burning
bright blue? If not (or if you suspect
some other malfunction), call your
servicing dealer.
18
19
20
WARNING
If holes are found—or if the
vent pipe is obstructed or is
not connected—toxic fumes
can escape into your home. DO
NOT OPERATE YOUR FUR-
NACE. Call your dealer for ser-
vice. A failure to follow this
warning could result in per-
sonal injury or death.
!