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3

IMPORTANT FACTS (DO’S AND DON’TS)

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DO: READ AND UNDERSTAND THIS MANUAL.

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DO: Have your furnace and vent system inspected annually by a
qualified service technician.

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DO: Inspect your filter monthly and clean or replace when
needed.

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DO: Provide adequate airflow to the furnace for efficient
combustion and safe ventilation.

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DO: Keep your furnace free and clear of insulating material.
Some materials may be combustible. Examine the furnace area
when the furnace is installed or when insulation is added.

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DO NOT: Enclose your furnace in an airtight room or seal it
behind solid doors.

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DO NOT: Keep combustible materials, gasoline, and other
flammable liquids or vapors around your furnace.

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DO NOT: Cover your furnace in any manner.

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DO NOT: Store anything (including trash or debris) near your
furnace.

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DO NOT: In any way block or restrict airflow around your
furnace.

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DO NOT: In any way block or restrict airflow to your supply air
and return air grills.

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DO NOT: Use your furnace room as a broom closet or a place to
store any kind of chemical or cleaner.

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DO NOT: Contaminate the air used for combustion of your
furnace with any kind of chemical or fumes. This could also
cause heat exchangers, metal vent systems or components to
deteriorate.

NOTE

: These chemicals or fumes are present in many products

around the home, such as: water softener salts, any type of
household cleaning product, any type of laundry product,
adhesives, paints, varnishes, paint strippers, waxes and plastics, etc.
During remodeling be sure the combustion air is fresh and

uncontaminated. If these compounds are burned in your furnace,
the heat exchangers and metal vent system may deteriorate.

NOTE

:

The qualified installer or agency must use only

factory--authorized replacement parts, kits, and accessories when
modifying this product.
This furnace contains safety devices which must be manually reset.
If the furnace is left unattended for an extended period of time,

have it checked periodically for proper operation. This precaution
will prevent problems associated with no heat, such as frozen water

pipes, etc. See “Before You 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, gasoline, and other

flammable liquids or vapors around your furnace.

!

WARNING

FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings could result in personal

injury, death, or property damage.
Keep insulation clear of furnace and maintain clearances

shown on unit clearance label.

!

WARNING

BEFORE STARTING YOUR FURNACE

Examine the furnace installation to determine that:

1. All flue gas carrying areas external to the furnace (i.e. chim-

ney, vent connector) are clear and free of obstructions.

2. The vent connector is in place, slopes upward and is physic-

ally sound without holes or excessive corrosion.

3. The return--air duct connection(s) is physically sound, is

sealed to the furnace casing, and terminates outside the

space containing the furnace.

4. The physical support of the furnace is sound without sag-

ging cracks, gaps, etc. around the base.

5. There are no obvious signs of deterioration of the furnace.

SAFETY CONSIDERATIONS

Installing and servicing heating equipment can be hazardous due to

gas and electrical components. Only trained and qualified

personnel should install, repair, or service heating equipment.
Untrained personnel can perform basic maintenance functions such

as cleaning or replacing air filters. All other operations must be
performed by trained service personnel. Observe safety precautions

in this manual, on tags, and on labels attached to the furnace, and

other safety precautions that may apply.

Recognize safety information. This is the safety--alert symbol

.

When you see this symbol on the furnace and in instructions or

manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and

CAUTION. These words are used with the safety--alert symbol.
DANGER identifies the most serious hazards which will result in

severe personal injury or death. WARNING signifies hazards
which could result in personal injury or death. CAUTION is used

to identify unsafe practices which would result in minor personal

injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability or

operation.

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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