WARNING: FIRE, EXPLOSION, ELECTRICAL SHOCK AND CUT HAZARD Failure to follow this warning could result in personal injury, death or property damage.
1. Turn off gas supply first, then all electrical power to your unit and install lock-out tag before servicing or performing maintenance.
2. When removing access panels or performing maintenance functions inside your unit. be aware of sharp sheet metal parts and screws. Although special care is taken to reduce sharp edges to a minimum, be extremely careful when handling parts or reaching in
Table 1 indicates the correct indoor filter size for your unit. Refer to Fig. 4 to access filters installed in the accessory filter rack. If using an Accessory Filter Rack, refer to the Installation Instructions provided with it for correct filter sizes a
Table I--Indoor Air Filter Data
Fig. 4 - Accessory Filter Rack Access Panel (Optional Louvered Panels Shown)
To replace or inspect filters in accessory filter rack (See Fig. 4):
CAUTION: PEDESTRIANIZATION Failure to follow this caution may result in property damage. Never operate your unit without filters in place.An accumulation of dust and internalization parts of your unit can cause loss of efficiency and blower motor and/or c
Fans and Fan Motors
Indoor and Outdoor Coils
Condenser (Outdoor) Fan
WARNING: PERSONAL INJURY AND UNIT DAMAGE HAZARD Failure to follow this warning could result in personal injury, death or property damage. Do not insert sticks, screwdrivers, or any other objects into revolving fan blades.
Electrical Controls and Wiring
WARNING: EXPLOSION AND ENVIRONMENTAL HAZARD Failure to follow this warning could result in personal injury, death or property damage. System under pressure. Relieve pressure and recover all refrigerant before system repair or final unit disposal. Use all
Combustion Area and Vent System
WARNING; FIRE, EXPLOSION HAZARD Failure to follow this warning could result in personal injury, death and/or property damage. If your unit makes an especially loud noise when the main burners are ignited, shut down the heating section and call your dealer
WARNING: BURN HAZARD Failure to follow this caution may result in personal injury. Components in heating section may be hot after unit has been started up. When observing flame, be careful not to get close to or touch heating components.
Regular Dealer Maintenance
In addition to the Wpe of routine maintenance you might be willing to perform, your unit should be inspected regularly by a properly trained service technician. An inspection (preferably each year, but at least every other year) should include the followi
Fig. 5-To Start Unit Gas Heat
Fig. 6 - To Shut Off Unit Gas Heat
Fig. 7 - To start unit electric cooling
Fig. 8 - To shut off unit electric cooling
Fig. 9 - Monoport Burner
Your servicing dealer may offer an economical service contract that covers seasonal inspections. Ask for further details.
Before you call for service...
If insufficient heating or cooling is suspected:
If your unit is not operating at all, check the following list for easy solutions:
In Case of Trouble