5
TYPICAL MOUNTING POSITIONS
BASEMENT FURNACE
(LOWBOY)
Mounted horizontally in return
plenum - just above the furnace
COUNTERFLOW FURNACE
Mounted horizontally in return
duct - just above the furnace
SPACE SAVER FURNACE
(HIGHBOY)
Side installation. Cleaner is
mounted vertically, where
return air enters side inlet of
furnace.
OFFSET INSTALLATION
If there is less than 7-in. for mounting the air cleaner
between the duct and the furnace, move the return air drop.
SPACE SAVER (HIGHBOY)
Installation beneath furnace. Cleaner
mounts horizontally, where return air
enters from below. Raise furnace by
installing a suitable wood structure and
install air cleaner.
HORIZONTAL FURNACE
Mounted vertically in return duct as close to
the furnace as possible
AIR FLOW
MEDIA
AIR CLEANER
SHEET METAL
TRANSITIONS
AIR FLOW
MEDIA
AIR CLEANER
SHEET METAL
TRANSITIONS
AIR FLOW
MEDIA
AIR CLEANER
AIR FLOW
AIR FLOW
MEDIA
AIR CLEANER
BEFORE
AFTER
MEDIA
AIR CLEANER
AIR FLOW
BLOWER DOOR
MEDIA
AIR CLEANER
SHEET METAL
TRANSITIONS
