7
A00227
Fig. 16 -- Slide Side Filter Out of Furnace
A00228
Fig. 17 -- Slide Bottom Filter Out of Furnace
4. Inspect the filter. If torn, replace it.
NOTE
: If a washable filter has been replaced with:
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 direction
arrow pointing towards blower.
b. Electronic Air Cleaner (EAC) — Refer to EAC
Owner’s Manual for maintenance information.
5. Wash filter (if dirty) in sink, bathtub, or outside with a
garden hose. Always use cold tap water. A mild liquid de-
tergent may be used if necessary. 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. 18 and 19.)
8. Turn on electrical supply to furnace (See Fig. 11).
A06192
Fig. 18 -- Replace Side Filter Cabinet Door
A06193
Fig. 19 -- Replace Bottom Filter Cabinet Door
NOTE
: If side return ducts are used, 2 filters may be required in
some models. The procedure listed above may be used to remove
side filters.
PERSONAL INJURY HAZARD
Failure to follow this caution may result in personal injury.
Use care when cutting support rods in filters to protect against
flying pieces and sharp rod ends. Wear safety glasses, gloves,
and appropriate protective clothing.
CAUTION
!
Filters may be field modified by cutting filter material and support
rods (3) in filters. Alternate sizes and additional filters may be
ordered from your dealer.
FURNACE CASING WIDTH
IN (MM)
FILTER QUANTITY AND SIZE *
**
FILTER TYPE*
SIDE RETURN
IN (MM)
BOTTOM RETURN
IN (MM)
14---1/2 (368)
(1) 16 x 25
(406 x 635)
(1) 14 x 25
(356 x 635)
3/4” (19 mm) thick washable or
4---5/16” (110 mm) thick
media---type
17---1/2 (445)
(1) 16 x 25
(406 x 635)
(1) 16 x 25
(406 x 635)
3/4” (19 mm) thick washable or
4---5/16” (110 mm) thick
media---type
21 (533 )
(1) 16 x 25
(406 x 635)
(1) 20 x 25
(508 x 635)
3/4” (19 mm) thick washable
or 4---5/16” (100 mm) thick
media---type
24 (610)
(1) 16 x 25
(406 x 635)
(1) 24 x 25
(610 x 635)
3/4” (19 mm) thick washable or
4---5/16” (100 mm) thick
media---type
*Recommended
**Some furnaces may have 2 filters
