Fedders F80A Induced Blower, Circulating Fan, Electrical, Furnace Operation, Accessories

MODEL F80A

INDUCED BLOWER

The induced blower motor should be inspected and cleaned if necessary. Clear any dust buildup from the ventilation ports.

CIRCULATING FAN

The condition of the circulating fan should be checked to ensure that it is free of excessive dust buildup, debris, etc. The mechanical fasteners should be inspected and checked for proper tightness and parts alignment. The motor ventilation ports should be cleaned if necessary to prevent restriction to cooling by air over the motor.

ELECTRICAL

WARNING

DISCONNECT THE ELECTRICAL POWER SUPPLY TO THE FURNACE BEFORE ATTEMPTING THIS MAINTENANCE PROCEDURE. FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR LOSS OF LIFE.

All electrical connections should be examined to ensure that they are tight and corrosion free. Repair any connections that have become loose or corroded.

CAUTION

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.

Always verify proper operation after servicing.

FURNACE OPERATION

The furnace should be cycled during the annual inspection and servicing to:

1.Test all safety related controls.

2.Determine that the temperature rise falls within the range shown on the appliance rating plate.

3.Ensure that the burner ignition is smooth and that the flames are smooth soft blue, and not impinging on the heat exchanger.

ACCESSORIES

FIELD SUPPLIED AND INSTALLED OPTIONAL ACCESSORIES

ELECTRONIC AIR CLEANER

The White-Rodgers integrated furnace control has provisions to supply power and control an electronic air cleaner rated at 120vac, 1.0 amp max.

50A55-250: Line voltage for an electronic air cleaner may be picked up from the "EAC-N". 120 volt power will be available at these terminals whenever the circulating fan is operating in the heating or cooling modes.

HUMIDIFIER/ ELECTRONIC AIR CLEANERS

The White-Rodgers integrated furnace control has provisions to supply power and to control a line voltage humidifier or the primary of a 120 / 24 volt humidifier step down transformer, rated at 120vac, 1.0 amp max.

50A55-250: Line voltage for a humidifier may be picked up from the "HUM-H" terminal and from the "HUM-N" terminal. 120 volt power will be available at these terminals whenever the circulating fan is operating in the heating mode.

NOTE: All HUM (humidifier) and EAC (electronic air cleaner) terminals are 120v. Do not directly connect 24v equipment to them.

NOTE: All furnace and furnace accessory wiring shall conform to the temperature limitations of 63°F (35°C) rise.

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