12
12
To remove the filter located in the furnace retaining rails:
1. Disconnect electrical power to the furnace and re-
move the two front panels (louvered panel first).
2. Grasping the lower portion of the filter, disengage the
filter from the lower railing by lifting it up and toward
the blower. Drop the filter down and pull outward
(Figure 5).
Front of Furnace
Blower
Grab Here
And Lift
F
ilt
e
r
Front of Furnace
Blower
a. Lift filter above bottom b. Tilt filter to clear rail.
rail
Front of Furnace
Blower
Front of Furnace
Blower
c. Lower filter below top d. Pull filter out.
rail.
Figure 5
Filter Removal
Use a vacuum cleaner to clean out the blower area and
the adjacent area of the return air duct.
Some installations will have throwaway filters. If dirty,
these filters must be thrown away and replaced with two
new similar size throwaway filters. Other installations will
have permanent filters. If dirty but not torn, these filters
must be cleaned as follows:
Wash, rinse, and dry a permanent filter. Both sides of
a metal filter should be sprayed with a dust adhesive
as recommended on the adhesive container. Spray
adhesives for use with permanent metal filters can be
found at some hardware stores.
Routine Maintenance
If badly torn or not cleanable, these filters must be
replaced with permanent filters of the same type and
size.
To reinstall filter follow instructions included with external
filter rack kit. BE SURE AIRFLOW DIRECTION ARROW
POINTS TOWARDS THE BLOWER.
When the filter is located in the bottom of the furnace on
a bottom return system the filter is held in place by a wire
filter retainer (Figure 6). To change and clean the filter,
push back and up on the wire filter retainer to release it
from under the front lip of the basepan. Slide the filter
out and follow cleaning or replacement instructions
above. Replace filter opposite of removal.
Figure 6
Wire Filter Retainer
Horizontal Filters (Not Included With Furnace)
For furnaces installed horizontally, filters must be in-
stalled external to the furnace casing. A central return
with filters installed in the duct behind the return grille
may be used. This would simplify filter replacement by
merely requiring the removal of the grille. Clean or
replace filters every two months or as required. Dirty
filters are the most common cause of inadequate heating
or cooling performance.
NOTE:
If using Media Air Cleaner MAC1 or Electronic Air
Cleaner EAC6, follow the directions that came with the air
cleaner for proper filter removal, cleaning, and replace-
ment procedures.
Induced Draft Motor Lubrication
The induced draft motor bearings are permanently
lubricated. No further lubrication is required.
Air Circulating Blower Motor Lubrication
The air circulation blower motor bearings are perma-
nently lubricated. No further lubrication is required.
