American Standard Gas Furnaces warranty Rack First, Upflow / Horizontal Furnace Filters

The filter rails are spring loaded for automatic adjustment to allow standard size, locally obtainable replacement filters. The filter rack itself slides to adjust to the required width needed for bottom or side return. Always insert the chamfer (angle edged sides) end first.

FILTER RACK ASSEMBLY

Airflow

CHAMFER

END OF

FILTER GOES

INTO FILTER

RACK FIRST

The furnace filter may be secured with filter retaining brackets for right side return on smaller furnaces. To replace filters on these furnaces, remove the blower access door, push back to flex the filter and clear the filter retaining bracket at the front of the unit. Gently pull the filter out.

After cleaning, replace the filter in the same manner making sure that filter is secured in place in both front and back filter retaining brackets of the unit. Replace blower access door.

Air filters may also be located outside of the furnace using a

SIDE FILTER FRAME.

User’s Information

Airflow

UPFLOW

ONLY

Upflow / Horizontal Furnace Filters

The Upflow/Horizontal furnace, when installed horizontally, requires a horizontal filter kit. The filters may be located remote to the furnace or in the return air duct near the furnace. Check with your dealer for the location of your filters.

An upflow/horizontal furnace in horizontal return air filter application, as shown, features two 14" x 20" x 1" filters in the 14-1/2" wide furnace cabinets; or two 16" x 20" x 1" filters in the 17-1/2", 21", and 24-1/2" wide furnace cabinets.

UPFLOW/HORIZONTAL WITH FILTER KIT

To replace filters, remove the filter access door, lift the filter from the lower bracket and shift the filter to the side to free the top filter from the bracket and slide the filters out through the filter access door. After cleaning, replace the filters in the same manner making sure that the filters are secured in place in both top and bottom filter brackets. Replace filter access door.

Air filters may also be located outside of the furnace using a remote filter grille. The filter grille could be in a hallway, wall, or in the ceiling. Check with your dealer for the exact location of your filter and the method of changing the filters.

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