Service Manual

INSTALLATION CONSIDERATIONS
41
Air Cleaner Installation
Location
Maximum Heating
Airflow
Filter (Media)
Dimensions
Part Number
Air Cleaner
Family
Side or bottom return 1200 CFM 16 in X 20 in x 5¼" AM 11-1620-5
Side or bottom return 1600 CFM 16 in X 25 in x 5¼" AM 11-1625-5
Side or bottom return 1600 CFM 20 in X 20 in x 5¼" AM 11-2020-5
Side or bottom return 2000 CFM 20 in X 25 in x 5¼" AM 11-2025-5
Side return
(for 2 separate returns)
Side return (Right angle) 2000 CFM 20 in X 25 in x 5¼" AM11-2025-5RA AM11-5RA
Bottom return (platform) 2000 CFM 20 in X 25 in x 5¼" AM 11-2832-5PP
Bottom return (platform) 2000 CFM 20 in X 25 in x 5¼" AM 11-2843-5PP
AM11-5PP
AM11-5
2 X 1600 CFM 2, 16 in X 25 in x 5¼" AM11-3225-5 AM11-3225
"A"
Min
Return Air
Optional
Access
Door
Horizontal Installations
Filter(s) must be installed external to the furnace casing for
horizotal installations. For most installations it is preferable
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.
Electronic Air Cleaner (ASAS and GSAS) or Media
Air Cleaner (AMU and GMU)
The electronic air cleaner and media air cleaner are multi-
positional high efficiency air filtration devices that can be
installed in any position, except with the access door facing
down. The best location for the air cleaner is in the return air
duct next to the blower compartment. Before installing the
air cleaner, consider the application. The electronic air cleaner
must be readily accessible for periodic inspection and clean-
ing of the pre-filters and electronic cells while the media air
cleaner must be readily accessible for periodic inspection
and replacement of the Media Air Cleaner (AMU and GMU)
filter cartridge (3 per carton) M0-1056, M1-1056, M2-1056,
M8-1056, to maintain maximum efficiency and trouble-free
operation. Carbon Filters 1156-3 and 1856-3 (set of 3) are
also available. See Product Catalog for exact filter for your
model.
AM11-5 AM11-5RA AM11-5PP
Family Family Family