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MEDIA AIR CLEANER
9 69-1866—01
Disconnect Existing Ductwork
NOTE: Skip this step if the media air cleaner is being
installed on a new system without existing duct that
needs to be removed or modified.
1. Review the installation location and verify that there is
adequate clearance for removal and replacement of the
filter cartridge. See Fig. 16.
2. Make sure that all sheet-metal components, such as
transitions and duct offsets, are available.
3. Carefully disconnect the existing ductwork where the air
cleaner cabinet is to be installed.
NOTE: Disconnecting ductwork may require removing exist-
ing duct tape, removing sheet metal screws, cutting
metal duct, or breaking sealed joints.
Fig. 16. Check for clearance to change filter.
Fasten Cabinet to Furnace or Duct
1. Remove door and filter cartridge from air cleaner cabinet. See Figs. 1 and 2.
2. Temporarily place the air cleaner cabinet in position, oriented as it will be when installed.
3. Make sure unit sits securely in position. Place blocks or other support materials under cabinet, as necessary.
4. Create or enlarge opening in the furnace or duct to match the air cleaner cabinet opening.
5. Attach the air cleaner cabinet securely to the furnace using any of the following:
• Drill holes and fasten with sheet metal screws or rivets. (If you are drilling, use locking pliers to help hold the unit in place
while drilling.)
• Use slip joints.
NOTE: Make sure fasteners do not interfere with installation and removal of the filter.
Install Turning Vanes
1. Install turning vanes wherever an abrupt 90 degree elbow is against the media air cleaner cabinet.
2. Secure turning vanes using sheet metal screws or rivets, as appropriate.
Fasten Ductwork to Cabinet
Fasten side of media air cleaner cabinet to ductwork using sheet metal screws, rivets, or slip joints, as appropriate.
NOTE: Make sure fasteners do not interfere with installation and removal of the filter.
Reconnect Existing Ductwork
1. Connect remaining ductwork using sheet metal screws, rivets, or slip joints, as appropriate.
2. Add support straps and bracing to prevent excessive movement.
Seal Duct Joints
1. Seal all duct joints in the return air system between media air cleaner cabinet and the furnace.
NOTE: Use only duct-rated metalized tape or mastic to seal duct connections.
M13646
26 IN.
(637 MM)
MINIMUM