Maintenance

TABLE 1

Furnace	Filter Size
Cabinet Size	Side Return	Bottom Return
	Side Return	Bottom Return

17-1/2"	16 X 25 X 1 (1)	16 X 25 X 1 (1)

21"	16 X 25 X 1 (1)	20 X 25 X 1 (1)

24-1/2"	16 X 25 X 1 (2)	24 X 25 X 1 (1)

A qualified service technician should inspect the complete

system each season (heating and cooling). The following maintenance procedures should only be conducted by a qualified service technician. Do not attempt to service

the unit in any way.

WARNING

ELECTRICAL SHOCK, FIRE,

OR EXPLOSION HAZARD.

Failure to follow safety warnings exactly could result in dangerous operation, serious injury, death or property damage.

Improper servicing could result in dangerous opera, tion, serious injury, death, or property damage. Before servicing, disconnect all electrical power to furnace.

When servicing controls, label all wires prior to dis, connecting. Take care to reconnect wires correctly. Verify proper operation after servicing.

Venting System

WARNING

Asphyxiation Hazard

The exhaust vent for this furnace must be securely connected to the furnace flue collar at all times.

For your safety and to fulfill the terms of the limited warranty, a qualified service technician must annual, ly inspect this furnace and its vent system.

Annually (before heating season) inspect furnace venting system, vent cap, heat exchanger, and burners for corro. sion, deterioration, or deposits of debris. Remove any ob.

structions.

Inspect the furnace for obvious signs of deterioration. Inspect the furnace venting system to make sure it is in place, physically sound, and without holes, corrosion, or blockage.

Vent pipe must be clear and free of obstructions and must slope upward away from the furnace.

Inspect the furnace return air duct connection to ensure duct is sealed to the furnace and terminates outside the space containing the furnace.

Inspect the physical support of the furnace to guarantee that it is sound without sagging, cracks or gaps around base and it maintains seal between base and support.

Inspect and clean the condensate trap and drain.

During a seasonal check the service technician will inspect the indoor blower, burner flames and electrical connections along with the venting system.

Blower

Check the blower wheel for debris and clean if necessary. The blower motors are prelubricated for extended bearing life. No further lubrication is needed.

WARNING

The blower access panel must be securely in place when the blower and burners are operating. Gas fumes, which could contain carbon monoxide, can be drawn into living space resulting in personal inju, ry or death.

Burner Flame

CAUTION

To ensure proper operation, a qualified technician should annually check the burner flame.

Electrical

1 - Check all wiring for loose connections.

2 - Check for the correct voltage at the furnace (furnace operating).

3 - Check amp-draw on the blower motor.

Motor Nameplate__________Actual__________

Page 5

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