14
WARNING
Do not operate the system without filters. A portion of the dust entrained in the air may temporarily lodge In the duct runs and at the supply
registers. Any circulated dust particles could be heated and charred by contact with the air handler elements. This residue could soil ceilings,
walls, drapes, carpets and other articles in the house.
Soot damage may occur with filters in place, when certain types of candles, oil lamps or standing pilots are burned.
NOTE:
Air filter is optional part, isn't factory-installed.
Fig.12 EXTERNAL FILTER BASE
FILTER RAILS
FILTER COVER
MANUAL BOLT
9. FILTER INSTALLATION DIMENSIONS
AIR FILTER REMOVAL
DIMENSIONAL DATA
18/24
16.8[426]
20.4[518]
1[25.4]
19.6
14.8
30/36
18.3[466]
21.6[548]
1[25.4]
20.8
16.3
42/48/60
20.7[526]
23.9[608]
1[25.4]
23
18.8
"H" IN [mm] Return width
"A" IN
Return length
"B" IN
MODEL
FILTER SIZE
IN [mm]
"W" IN [mm] "D" IN [mm]
Remove bolts manually, remove air filter cover, see in Fig.12.
Hold the edge of the air filter and
out.
Clean the air filter (Vacuum cleaner or pure water may be used to clean the air filter. If the dust accumulation is too
heavy, use soft brush and mild detergent to clean it and dry out in cool place).See in Fig.13.
Install new filter so that the arrow on the filter is in the same direction as airflow.
RETURN
AIR OPENING DEPTH
W
B
A
D
H
