Operating instructions

ManualsBrandsAmerican Standard ManualsFurnaceGas Furnaces

User’s Information

Never store gasoline, combustible materials, or other

flammable liquids or vapors near your furnace.

Carbon monoxide, fire or smoke can cause serious bodily

injury, death, and/or property damage.

A variety of potential sources of carbon monoxide can be

found in a building or dwelling such as gas-fired clothes

dryers, gas cooking stoves, water heaters, furnaces and

fireplaces. The U.S. Consumer Product Safety Commission

recommends that users of gas-burning appliances install

carbon monoxide detectors as well as fire and smoke

dectectors, listed by a nationally recognized agency (e.g.

Underwriters Laboratories or International Approval

Services), to help alert dwelling occupants of the presence of

fire, smoke or unsafe levels of carbon monoxide.

NOTE:

The manufacturer of your furnace does not test any detec-

tors and makes no representations regarding any brand or

type of detector.

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 func-

tions such as cleaning and replacing filters. All other opera-

tions must be performed by trained service personnel.

Parts and controls of this furnace are unique. Should service

or modification be required, be sure your servicer uses only

factory authorized parts, kits, or accessories for this furnace.

If you experience a problem with the operation of your furnace,

check the “Problem Solver” section of this manual before you

call for a possibly unneeded service call.

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WARNING

Improper installation, adjustment, alteration, service or

maintenance can cause injury or property damage. Refer to

the installation instructions provided with the furnace and

this manual. For assistance or additional information

consult a qualified installer, service agency or the gas

supplier.

Lighting instructions.

Your furnace does not use a continuously burning pilot flame.

Therefore, manually lighting your furnace is not required.

Your furnace is equipped with an automatic ignition system. It

uses a hot surface ignition device that automatically lights the

burners each time the thermostat signals the furnace to start.

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WARNING

Do not attempt to manually light the furnace.

1. Please read all safety information in this book before

operating furnace.

2. Set thermostat to lowest setting. Turn off all electric

power to furnace.

3. Remove the furnace front panel to gain access to the

main gas valve.

4. Turn gas cock knob clockwise or the toggle switch

located on the main gas valve inside the unit to “OFF”

position (see illustration on this page). If external gas

cock is used, turn to “OFF” position (see illustration on

next page). Allow 5 minutes for any gas within the unit

to escape. LP gas being heavier than air may require

forced ventilation. If you smell gas STOP! Follow the

“What To Do If You Smell Gas” instructions on the front

cover of this book. If you don’t smell gas, go to next step.

5. Turn gas cock knob counterclockwise or the toggle switch

to “ON” marker (see illustration on this page).

6. Replace the furnace front access panel.

7. Turn on main electrical supply and set thermostat to

desired setting. Combustion blower will start and ignition

device will start to heat up. After approximately 15 sec-

onds main gas valve will open and burners will ignite.

To Start the Furnace

Your furnace may have a “Knob Switch” or a “Toggle Switch” to turn the gas ON or OFF.

Outlet Pressure Boss

On/O

Swi

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let Pressure

Boss

Boss (opt

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Adj

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On/O

Swi

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WARNING

BODILY INJURY CAN RESULT FROM HIGH VOLTAGE

ELECTRICAL COMPONENTS, FAST MOVING FANS, AND

COMBUSTIBLE GAS. FOR PROTECTION FROM THESE

INHERENT HAZARDS DURING INSTALLATION AND

SERVICING, THE ELECTRICAL SUPPLY MUST BE DIS-

CONNECTED AND THE MAIN GAS VALVE MUST BE

TURNED OFF.