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In addition to the type of routine maintenance you might be willing to perform, your furnace should be inspected regularly by a properly
trained service technician. You should work with your dealer or service technician to assure your inspection includes the following at a

minimum.

MAINTENANCE CHECKLIST

DESCRIPTION

INSPECTION INTERVAL

Monthly

Bi-annually

Annually

Furnace specific, external items

:

Clean or replace air filters.

X

Inspect cabinet for signs of damage.

X

Inspect and clean door louvers if needed.

X

Inspect electrical disconnect for proper function. Repair or replace as

necessary.

X

Inspect external wiring for damage.

X

Inspect gas supply line and manual shut-off for leaks.

X

Furnace specific, internal items

:

Inspect and clean blower assembly (includes blower housing, blower

wheel and motor).

X

Inspect gas valve and check for proper manifold gas pressure Adjust as

needed.

X

Inspect ignition system and safety controls. Clean and adjust as

needed.

X

Inspect control box, associated controls, wiring and connections.

X

Check combustion blower housing for lint and debris and clean as ne-

cessary.

X

Inspect burner assembly - clean as needed.

X

Inspect heat exchanger - clean as needed.

X

Inspect flue system—check for proper attachment to the furnace, any

dislocated sections, and for signs of corrosion. Replace if necessary.

X

System:

Inspect airflow system (ductwork)—check for leaks and repair as

needed.

X

Inspect evaporator coil, drain pan and condensate drain lines as applic-

able. Clean as needed.

X

This list may not include all maintenance items, and inspection interval times may vary depending on operational conditions of the furnace.
Ask your servicing dealer for further details about an economical service contract that covers seasonal inspections.

Summary of Contents for 311JAV Legacy Line Plus 80

Page 1: ...If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified installer service agency or the gas supplier WARNING CARBON MONOXIDE POISONING...

Page 2: ...T BE KEPT FREE AND CLEAR OF INSULATING MATERIAL WARNING 3 STARTING LIGHTING AND SHUTTING DOWN THE FURNACE WARNING 4 5 PROPER FURNACE SHUTDOWN PROCEDURES 5 SERVICE AND MAINTENANCE ELECTRICAL HAZARD WAR...

Page 3: ...u Request a Service Call section in this manual FIRE OR EXPLOSION HAZARD Failure to follow this safety warning could result in injury death or property damage Do not keep combustible materials gasolin...

Page 4: ...age Should the gas supply fail to shut off or if overheating occurs turn off the manual gas valve to the furnace BEFORE turning off the electrical supply and install lockout tag WARNING S CHECK AIR FI...

Page 5: ...stat the furnace will switch on automatically When the room temperature reaches the setting selected on the thermostat the furnace will be automatically switched off Continuous Fan Operation Some ther...

Page 6: ...can cause a loss of efficiency CAUTION A dirty filter will cause excessive stress on the furnace heat exchanger and blower motor and can cause it to overheat and automatically shut down The furnace f...

Page 7: ...If side return ducts are used 2 filters may be required in some models The procedure listed above may be used to remove side filters PERSONAL INJURY HAZARD Failure to follow this caution may result i...

Page 8: ...efore you call for service check for several easily solved problems S Check for sufficient airflow Check the air filter for dirt Check for blocked return air or supply air grilles Be sure they are ope...

Page 9: ...ing blower wheel and motor X Inspect gas valve and check for proper manifold gas pressure Adjust as needed X Inspect ignition system and safety controls Clean and adjust as needed X Inspect control bo...

Page 10: ...ress______________________________________ _____________________________________________ Phone Number _______________________________ Technician Name _____________________________ ____________________...

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