Filter
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2. Remove the air cleaner door from the outer housing and pull out the filtering media.
3. If replacing an existing filter, remove the filter and thoroughly clean the blower
compartment.
4. Use screws (field supplied) to mount the outer housing to the furnace/air handler.
There is no inlet or outlet side on the outer housing (the outer housing can be mounted
on the left or right side of the furnace/air handler).
NOTE FOR UPFLOW INSTALLATIONS: Provide support under the outer housing to ensure the quality of the seals (see Figure 5).
5. Mount the return ductwork to the outer housing.
6. Seal all connections using mastic, foil tape or silicone based caulk.
7. Install the filtering media (see Figure 6).
8. Install the door.
9. Reconnect power to the furnace or air handler at the electrical
service panel.
INSTALLATION
FIGURE 5
90-1374
120 Volts may cause serious injury from electrical shock. Disconnect
power to the furnace/air handler before starting installation. Leave power
disconnected until installation is completed.
WARNING
1. Disconnect power to the furnace or air handler at the electrical service panel.
FIGURE 6
Expand clean filter.
Align filter in top and bottom rails
and slide into place. Reinstall door.
Install filter with Air Flow pointing
toward Furnace or Air Handler.
3