Side installation. Cleaner is mounted vertically, where return air
enters side inlet of furnace.
Fig. 11—Side Installation on Upflow Furnace
A97064
AIR
FLOW
Mounted horizontally in return plenum just above furnace.
Fig. 9—Basement Furnace
A97062
AIR FLOW
If there is less than 7-in. for mounting air cleaner between duct and
furnace, move return-air drop.
Fig. 12—Offset Installation
A97065
AIR
FLOW
Mounted horizontally in return duct or plenum just above furnace.
Fig. 10—Downflow Furnace
A97063
AIR FLOW
6