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PARTS IDENTIFICATION

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3

1 - COMBUSTION AIR

BLOWER

2 - PRESSURE SWITCH

3 - BURNERS

4 - HEAT EXCHANGER

5 - GAS VALVE

6 - CONTROL BOARD

7 - BLOWER

7

1

5

6

4

WARNING

Product contains fiberglass wool.Disturbing the

insulation  in  this  product  during  installation,

maintenance, or repair will expose you to fiberĆ

glass wool. Breathing this may cause lung canĆ

cer.  (Fiberglass  wool  is  known  to  the  State  of

California to cause cancer.)Fiberglass wool may

also cause respiratory, skin, and eye irritation.To

reduce exposure to this substance or for further

information, consult material safety data sheets

available from address shown below, or contact

your supervisor

P.O. Box 799900

Dallas, TX 75379-9900

WARNING

If overheating occurs or if gas supply fails to shut

off, shut off the manual gas valve to the appliance

before shutting off electrical supply.

WARNING

Do not use this furnace if any part has been underĆ

water. Immediately call a qualified service techniĆ

cian to inspect the furnace and to replace any part

of the control system and any gas control which

has been under water.

CAUTION

Before attempting to perform any service or mainteĆ

nance, turn the electrical power to unit OFF at disĆ

connect switch.

IMPORTANT

Any additions, changes, or conversions required in

order for the appliance to satisfactorily meet the apĆ

plication needs must be made by a qualified service

technician  using  factory  specified  and  approved

parts.

Important Directions

 1 - Keep the furnace area clear and free of combustible

material, gasoline, and other flammable vapors and liqĆ

uids. If installed in an insulated area, furnace must be

kept free of insulating material. Insulating material may

be  combustible.  Inspect  furnace  venting  system  to

make sure it is in place, physically sound, and without

holes, corrosion, or blockage. Inspect furnace return

air duct connection to ensure duct is sealed to the furĆ

nace and terminates outside the space containing the

furnace. Inspect the physical support of the furnace to

guarantee that it is sound without sagging, cracks or

gaps around base and it maintains seal between base

and support.

Summary of Contents for F8AUH Series

Page 1: ...ferenced in publication Gas Valve 2 Two Stage Valve Blank Ć Single Stage Valve Blower Motor V Variable Speed Motor Blank MultiĆSpeed Motor Options X Low NOx P LPG Propane Gas S Stainless Steel Heat Exchanger Z Stainless Steel Heat Exchanger Low NOx Blank No options Configuration UF Up Flow DF Down Flow HZ Horizontal MP Multi Position DH Downflow Horizontal UH Up Flow Horizontal V 24 F A 8 UH X 045...

Page 2: ...an to inspect the furnace and to replace any part of the control system and any gas control which has been under water CAUTION Before attempting to perform any service or mainteĆ nance turn the electrical power to unit OFF at disĆ connect switch IMPORTANT Any additions changes or conversions required in order for the appliance to satisfactorily meet the apĆ plication needs must be made by a qualif...

Page 3: ...n and the opĆ erating environment It is your responsibility to ensure that this appliance is maintained Proper maintenance is critical for your safety and the satisfactory operation of the product Annual inspection and maintenance of this appliance is strongly recommended Contact your dealer for an inspection by a qualified service technician Your furnace is designed to meet standards set by natio...

Page 4: ...gas line 12 If the appliance still will not operate follow the instructions To Turn Off Gas To Unit and call your service technician or gas supplier To Turn Off Gas To Unit 1 Set thermostat to lowest setting 2 Turn off all electrical power to unit if service is to be performed 3 Remove control access panel 4 Switch lever on White Rodgers gas valve to OFF turn knob on Honeywell valve clockwise to O...

Page 5: ...due to the functioning of these safety switches DO NOT attempt to place the furnace into operation Contact a qualified service technician Safety Reminder Call a qualified service technician if unit is inoperaĆ tive Before calling always check the following to be sure service is required 1 Check that electrical disconnect switches are ON 2 Are access panels securely in place 3 Check room thermostat...

Page 6: ... be inspected for rust dirt or signs of waĆ ter Vent pipe Must be inspected for signs of water damĆ aged or sagging pipe or disconnected joints Unit appearance Must be inspected for rust dirt signs of water burnt or damaged wires or components Fan access door Must be properly in place and provide a seal between the return air and the room where the furĆ nace is installed Return air duct Must be pr...

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