General Ac22 Owner's Manual
Fresh Indoor Air Quality
INSTALLER: PLEASE FILL OUT AND MAIL GUARANTEE CARD AFTER INSTALLATION
IS COMPLETE. LEAVE INSTALLATION INSTRUCTIONS WITH HOME OWNER
This air cleaner is designed for use in systems up to 2000 CFM. For higher airflows additional units
may be required. See Typical Installations below.
RETURN AIR
WARM AIR
RETURN AIR
WARM AIR
MODEL AC-22
HIGH EFFICIENCY
AIR CLEANER
FOR INSTALLATION IN THE
RETURN AIR DUCT OF ANY
FORCED AIR HEATING AND
COOLING SYSTEM
RETURN AIR
WARM AIR
HIGH BOY COUNTER-FLOW
GENERALAire AC-22
HIGH EFFICIENCY AIR CLEANER
WARM AIR
LOW BOY
GENERALAire
FLOW THRU
SERIES HUMIDIFIER
INSTALLATION INSTRUCTIONS
IMPORTANT: A 26 INCH CLEARANCE MUST BE ALLOWED FOR REMOVAL OF THE MEDIA FRAME
ASSEMBLY FROM THE CABINET.
1. Turn off electricity to furnace.
2. Pull front cover off and slide media carrier out of air cleaner cabinet. Discard packing material.
3. Remove and discard existing furnace air filter.
4. Install cabinet in return air system. Duct supports are recommended to support weight of cabinet.
5. Refer to care and maintenance instructions for installation of air cleaner media and pleat spacers.
6. Slide the media frame assembly into the cabinet. Be sure the airflow arrow on the media frame points toward
the furnace blower. The plastic pleat spacers are always on the downstream side of the filter media.
7. Install condition indicator and nameplate in upright orientation.
8. Turn on electricity and furnace, calibrate condition indicator and check performance of all equipment.
CARE AND MAINTENANCE
The condition indicator gauge will show when media replacement is required. Use Air Cleaner media assembly Part No. 12758.
1 2
Turn off electricity to furnace.
slide media carrier out of air cleaner cabinet.
cleaner media frame on table with plastic pleat spacers
on top. Loosen pleat spacers by gently lifting at each
end. Carefully remove all pleat spacers. Lift used air
cleaner media out of frame for disposal and clean
media frame.
Pull front cover off and
Place air
3 4
Install the plastic pleat spacers, being careful to insert
one support finger between each pleat. Press each
end of the pleat spacers down firmly to fully engage
the media frame. Pleat spacers may snag on air
cleaner cabinet if not pressed down below media
frame rail.
Place new media pack (Part No. 12758) onto the media
frame. Slide media pack toward foam gasket. Line up
holes in the cardboard strips with the holes in the
media frame.
AIR
FILTER
BLOWER
GAGE
Slide the assembled media frame into the air cleaner
cabinet. Be sure the airflow arrow on the media frame
points toward the furnace blower. The plastic pleat
spacers are always on the downstream side of the
filter media. Attach outer cover.
RETURN
AIR
5
FILTER IS CLE AN
FILTER
CONDITION
CHANGE FILTER
Turn on electricity and run furnace blower on highest
speed. Calibrate condition indicator, with a small
screwdriver adjust the calibration screw to put the
pointer in the center of the “FILTER IS CLEAN” range.
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