Lennox International Inc GCS16-024 manual Flue Passage and Vent Inspection, Burner Flame, Service

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B−To Turn Off Gas To Unit

1− If using electro est setting.

2− Turn off all electrical power to unit if service is to be performed.

3− Remove heat section access panel.

4− Turn knob on Honeywell gas valve clockwise until it stops. Depress knob and turn clockwise to OFF. Turn knob on White Rodgers 180° either way to off. Do not force.

5− Replace heat section access panel.

WARNING

Danger of explosion. Can cause injury or death. Do not attempt to light manually. Unit has a direct spark ignition system.

Flue Passage and Vent Inspection

Annually, before heating season, inspect combustion air louvers, vent cap, heat exchanger, burners and combus tion air inducer for corrosion, deterioration or deposits of debris. Remove any obstructions or blockage.

Burner Flame

WARNING

Danger of explosion and fire. Can cause injury or product or property damage. Periodically inspect burner flame to en sure proper unit operation.

The primary air is permanently set for normal operation. The flame will be basically blue with some clear yellow streaking in the end of the flame. Inspect burner flame pe riodically during heating season using inspection port provided on the burner access panel.

Service

To maintain efficiency and longevity, your equipment must be serviced yearly by a qualified service technician. Failure to provide proof of proper service can void the warranty.

A−Servicing Filter

Filters must be installed in the return air system. Filters should be checked monthly and replaced when neces sary. Take note of air flow direction marking on filter frame when reinstalling filters.

NOTE−Filters must be U.L.C. approved or equivalent for use in Canada.

B−Lubrication

All motors are lubricated at the factory. No further lubrica tion is required.

Service Reminder

Call a qualified service technician if the unit is inopera tive. Before calling, always check the following to be sure service is required:

1− Be sure electrical disconnect switches are ON. 2− Check room thermostat for proper setting.

3− Replace any blown fuses or reset circuit breakers. 4− Gas valve should be ON.

5− Air filters should not be plugged, limiting air flow. 6− Make sure all access panels are in place.

Repair Parts Listing

The following repair parts are available. When ordering parts, include the complete model number and serial number listed on the unit rating plate − e.g. GCS20−024−50−1P

HEATING PARTS

COOLING PARTS

ELECTRICAL PARTS

Heat Exchanger

Compressor

Compressor Contactor (K1)

Combustion Air Inducer Assembly

Compressor Run Capacitor

Blower Relay (K3)

Burner Sub−Assembly

Expansion Valve

Blower Limit Relay (K20)

Combustion Air Orifice

Condenser Fan Motor

Combustion Air Inducer

Gas Orifices

Condenser Fan Blade

Relay (K13)

Ignition Electrode Assembly

Condenser Fan Run Capacitor

Control Transformer

Flame Sensor

Condenser Fan Motor Mounting Bracket

Ignition Control

Burner Gasket

Fan Grille

Blower Delay Relay (K25 )

Gas Valve

Grille Retaining Nut

 

Limit Control

Indoor Blower Motor

 

Flue Cap

Blower Motor Run Capacitor

 

Vent Cap Gasket

Blower Wheel

 

Secondary Limit

Strainer

 

Roll−Out Switch

Distributor

 

Combustion Air Inducer Gaskets

Time Delay

 

 

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Contents 2P0802 P504558M Safety GCS16, 20, and 20R Parts ArrangementUnit Operation Unit Operation −Service Service ReminderRepair Parts Listing Flue Passage and Vent Inspection