PRODUCT DESIGN
37
"A"
Min
Return Air
Optional
Access
Door
Horizontal Installations
Filter(s) must be installed external to the furnace casing for
horizontal installations. For most installations it is prefer-
able to use a central return with filters installed in the duct
behind the return air grill. In this way filter replacement is
relatively simple by merely removing the grille, rather than
going into the attic or crawl space.
ADDITIONAL FILTERING ACCESSORIES
External Filter Rack Kit (EFR01)
The external filter rack kit is intended to provide a location
external to the furnace casing, for installation of a perma-
nent filter on upflow model furnaces. The rack is designed to
mount over the indoor blower compartment area of either
side panel, and provide filter retention as well as a location
for attaching return air ductwork.
Air Cleaner Installation
Location
Maximum Heating
Airflow
Filter (Media)
Dimensions
Part Number
Air Cleaner
Family
Si de or bottom return
1200 CFM
16 i n X 20 i n x 5¼"
AM11-1620-5
Si de or bottom return
1600 CFM
16 i n X 25 i n x 5¼"
AM11-1625-5
Si de or bottom return
1600 CFM
20 i n X 20 i n x 5¼"
AM11-2020-5
Si de or bottom return
2000 CFM
20 i n X 25 i n x 5¼"
AM11-2025-5
Si de return
(for 2 s epa rate returns )
Si de return (Ri ght a ngl e)
2000 CFM
20 i n X 25 i n x 5¼"
AM11-2025-5RA
AM11-5RA
Bottom return (pl a tform)
2000 CFM
20 i n X 25 i n x 5¼"
AM11-2832-5PP
Bottom return (pl a tform)
2000 CFM
20 i n X 25 i n x 5¼"
AM11-2843-5PP
AM11-5
2 X 1600 CFM
2, 16 i n X 25 i n x 5¼"
AM11-3225-5
AM11-3225
AM11-5PP
AM11-5
Family
AM11-5RA
Family
AM11-5PP
Family
