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4

STARTING YOUR FURNACE

Your furnace uses an automatic, hot surface ignition system to light

the burners each time the thermostat signals the furnace to start.

Follow these important safeguards:

S

Never attempt to manually light the burners with a match
or other source of flame.

A92319

Fig. 3 -- Do Not Light Burner with Match

S

Read and follow the operating instructions on inside of
main furnace door, especially the item that reads as fol-
lows:

“Wait 5 minutes to clear out any gas. Then smell for gas,
including near the floor. If you smell gas,

STOP!

Fol-

low “B” in the safety information above on this furnace
label. If you don’t smell gas, go to the next step.”

S

If a suspected malfunction occurs with your gas control

system, such as the burners do not light when they
should, refer to the shutdown procedures on inside of

main furnace door, or in the “Shutting Down Your Fur-
nace” section and call your dealer as soon as possible.

FIRE AND EXPLOSION HAZARD

Failure to follow this warning could result in personal injury,

death or property damage.
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 FILTER:

Before attempting to start your

furnace, be sure the furnace filter is clean and in place.
See “Performing Routine Maintenance” section in this
manual. Do not run the furnace without a filter in place.

Then proceed as follows:

STEPS FOR STARTING YOUR FURNACE

1. Set your room thermostat to the lowest temperature setting.

A09564

Fig. 4 -- Lowest Temperature Setting

2. Close the external manual gas valve.

 

CLO

S

E

A06188

Fig. 5 -- Close Valve

3. Turn OFF electrical supply to the furnace.

A92185

Fig. 6 -- Turn Off Electrical Supply

4. Remove the outer door.

2

1

3

A10300

Fig. 7 -- Remove Furnace Door

5. Turn the control switch on the gas control to the OFF position

and wait 5 minutes. Then smell for gas, including near the
floor. If you smell gas, STOP! Follow “B” on furnace label.
If you don’t smell gas, go to next step.

ON

OFF

OR

A02266

Fig. 8 -- Control Switch to OFF

6. After waiting 5 minutes, if you still smell gas, STOP! Follow

the safety information on the cover of this manual. If you do
not smell gas, go to the next step.

7. Turn the control switch to ON.

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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