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| Proudly made in the U.S.A. | MN900-500
5
Choosing a Mounting Position:
The SecureAire Air Purifier mounts in any position within the return air duct, usually next to the furnace
blower compartment. There are directional arrows on the filter to confirm proper cabinet location. See
below for proper locations for the SecureAire Air Purifier in a variety of furnace and air handler installations.
Before Installation (continued)
Type Description
1
Upflow with side install. The SecureAire Air Purifier is mounted vertically where return enters
side inlet of furnace.
2
Upflow with install beneath furnace. The SecureAire Air Purifier is mounted horizontally where
return enters from below.
3
Upflow with closet install. The SecureAire Air Purifier is mounted vertically on furnace between
furnace and louvered return air opening in closet door.
4
Counterflow with the SecureAire Air Purifier is mounted horizontally in return plenum just
above furnace and opposite heating plenum.
5
Counterflow furnace with the SecureAire Air Purifier mounted horizontally in return duct or
plenum just above furnace.
6
Central fan installation, with the SecureAire Air Purifier mounted horizontally in central
return duct.
7
Horizontal furnace, with the SecureAire Air Purifier mounted vertically in return duct near
furnace.
8
Two or more SecureAire Air Purifiers used in a high capacity system.
