Carrier 58GFA instruction manual AIR Filter Arrangement, Blower Motor and Wheel

Turn off the gas and electrical supplies to the unit before performing any maintenance or service. Follow the operating instructions on the label attached to the furnace. A failure to follow this warning could result in personal injury.

Never store anything on, near, or in contact with the furnace, such as:

1.Spray or aerosol cans, rags, brooms, dust mops, vacuum cleaners or other cleaning tools.

2.Soap powders, bleaches, waxes or other cleaning com- pounds, plastic or plastic containers, gasoline, kerosene, cigarette lighter fluid, dry cleaning fluids or other volatile fluids.

3.Paint thinners and other painting compounds, paper bags or

other paper products.

A failure to follow this warning could result in corrosion of the heat exchanger, fire, personal injury, or death.

The minimum maintenance that should be performed on this equipment is as follows:

1.Check and clean air filter each month or more frequently if required. Replace if torn.

2.Check blower motor and wheel for cleanliness and lubrication each heating and cooling season. Clean and lubricate as necessary.

3.Check electrical connections for tightness and controls for proper operation each heating season. Service as necessary.

As with any mechanical equipment, personal injury can result from sharp metal edges, etc., therefore, be careful when removing parts.

AIR FILTER ARRANGEMENT

The air filter arrangement may vary depending on the application. Refer to Table 1 for filter size information.

Table 1ÐFilter Size Information (In.)

FURNACE	FILTER QUANTITY AND SIZE		FILTER
CASING WIDTH	Side Return	Bottom Return	TYPE
14-3/16	(1) 16 X 25 X 1*	(1) 14 X 25 X 1	Cleanable
17-1/2	(1) 16 X 25 X 1*	(1) 16 X 25 X 1	Cleanable
21	(1) 16 X 25 X 1	(1) 20 X 25 X 1*	Cleanable
24-1/2	(2) 16 X 25 X 1*	(1) 24 X 25 X 1	Cleanable

*Factory-provided with the furnace. Filters may be field modified by cutting as required.

Never operate unit without a filter or with filter access door removed. A failure to follow this warning could result in fire, personal injury or death.

1.Each furnace requires 1 or 2 filters which are installed in the blower compartment. (See Fig. 2.)

To remove filters for cleaning or replacement, proceed as follows:

a.Disconnect electrical power before removing access doors.

b.Remove blower and control access doors.

c.Release filter retainer from clip at front of furnace casing. (See Fig. 2.) For side return, clips may be used on either or both sides of the furnace.

MOUNTING
SCREWS
	DRAFT
	SAFEGUARD
	SWITCH
RELIEF	FLUE
	COLLECTOR
BOX
	BOX
	GAS
	VALVE
	PILOT
CONTROL
BOX

FILTER

RETAINER

WASHABLE

FILTER

A92178

Fig. 2ÐModel 58GFA Upflow

d.Slide filter out.

e.Furnaces are equipped with permanent, washable filters. Clean filters with tap water. Spray water through filter in opposite direction of airflow.

f.Rinse and let dry. Oiling or coating of filter is not recommended or required.

g.Reinstall filter.

h.Replace access doors.

i.Restore electrical power to furnace.

BLOWER MOTOR AND WHEEL

For long life, economy, and high efficiency, clean accumulated dirt and grease from the blower wheel and motor annually.

The following steps should be performed by a qualified service technician:

Some motors have prelubricated sealed bearings and require no lubrication. These motors can be identified by the absence of oil ports on each end of the motor. For those motors with oil ports, lubricate motor every 5 years if motor is used on intermittent operation (thermostat FAN switch in AUTO position), or every 2 years if motor is in continuous operation (thermostat FAN switch in ON position).

Remember to disconnect the electrical supply before removing access doors.

Clean and lubricate as follows:

2.Remove control assembly.

3.Remove blower leads from blower assembly. Note location of wires for reassembly.

4.Remove screws holding blower assembly to blower deck and slide blower assembly out of furnace.

5.Loosen screw in strap holding motor capacitor to blower housing and slide capacitor out from under strap.

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