American Standard Noncondensing Gas Furnaces User's Manual
Contents
1. This limited warranty does not cover failure of your gas furnace if it is damaged while in your possession failure attributable or caused by unreasonable use of the gas furnace and or failure to properly maintain the gas furnace as set forth in the Use and Care manual This limited warranty applies to product installed on or after 10 1 2001 where product is manufactured after 1 1 2000 This limited warranty is not retroactive to any installations prior to 10 1 2001 or on product produced prior to 2000 THE LIMITED WARRANTY AND LIABILITY SET FORTH HEREIN ARE IN LIEU OF ALL OTHER WARRANTIES AND LIABILITIES WHETHER IN CONTRACT OR IN NEGLIGENCE EXPRESS OR IMPLIED IN LAW OR IN FACT INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR USE AND IN NO EVENT SHALL WARRANTOR BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES Some states do not allow limitations on how long an implied limited warranty lasts or do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you This limited warranty gives you specific legal rights and you may also have other rights which vary from state to state Parts will be provided by our factory organization through an authorized service organization in your area listed in the yellow pages If you wish further help or information concerning this limited warranty contact American Standard Inc Troup Highway2. Tyler TX 75711 9010 Attention Manager After Sales Support GW 615 4001 This limited warranty is for residential usage of this equipment and not applicable when this equipment is used for a commercial application Acommercial use is any application where the end purchaser uses the product for other than personal family or household purposes Warranty Information It s always a good idea to keep records which will save you time and money If it s necessary to have your FURNACE repaired the service man will want to know if your unit is still under Warranty To save time take a few minutes to record the following information here Model Number Serial Number Date of Purchase Extended warranties are available from the manufacturer through your dealer Service Information Call your installing dealer if the unit is inoperative Before you call always check the following to be sure service is really required a Be sure the main switch that supplies power to the unit is in the ON position b Replace any burned out fuses or reset circuit breakers c Be sure the thermostat is properly set The limited warranty is backed by the manufacturer and any representations made about extending the limited warranty would be backed by the manufacturer if and only if an extended warranty agreement was received from the manufacturer Page 10 Pub No 32 5034 02 The following warning complies with State of
3. DOWNFLOW FILTER TABLE REQUIRED FILTERS DOWNFLOW CABINET WIDTH FILTER QUANTITY amp SIZE 14 1 2 2 14 X20 X 1 17 1 2 2 16 X 20 X 1 L xX 2 16 X20 X 1 24 1 Page 5 The problem solver A furnace is not a household appliance It is complex and requires professional maintenance and repair That s why attempts at do it yourself repairs on an in warranty unit may void the remainder of your warranty Other than performing the simple maintenance recom mended in this manual you should not attempt to make any adjustments to your furnace Your dealer will be able to take care of any questions or problems you may have A periodic inspection of your furnace should be made by a qualified service agency at the start of each heating season Keep your furnace looking like new for years Clean the enamel finish of your furnace with ordinary soap and water For stubborn grease spots use a household detergent Lacquer thinner or other synthetic solvents may damage the finish AWARNING Do not touch igniter It is extremely hot Failure to follow this warning could result in severe burns other injury property damage or death ACAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dan gerous operation Verify proper operation after servicing Save time and money Before calling for service check the following Possible Trouble Possib
4. REPLACE ANY PART OF THE CONTROL SYSTEM AND ANY GAS CONTROL WHICH HAS BEEN UNDER WATER For your safety Furnace area must be kept clear and free of combustible materials gasoline and other flammable vapors and liq uids Air for combustion and ventilation The flow of combustion and ventilating air must not be obstructed from reaching the furnace Air openings pro vided in the casing of furnace must be kept free of obstruc tions which would restrict airflow thereby affecting effi ciency and safe operation of your furnace Also air openings provided to the area in which the furnace is installed and the space around the furnace shall not be blocked or obstructed Keep this in mind should you choose to remodel the area which contains your furnace Furnaces must have air for proper performance If additional insulation is added after the furnace is in stalled the area around the furnace must be inspected to ensure it is free and clear of insulation If this furnace is installed in an attic or other insulated space it must be kept free and clear of all insulating materials as some insulat ing materials are combustible MANUAL MAIN SHUTOFF VALVE AUTOMATIC GAS VALVE WITH MANUAL SHUTOFF GROUND f UNION JOINT MANUAL MAIN SHUTOFF VALVE m GROUND UNION JOINT DRIP LEG 7 AUTOMATIC GAS VALVE WITH MANUAL SHUTOFF Manual Main Gas Shut off Valve May Be Located on the Left or Right Side MANU
5. filter is secured in place in both front and back filter retaining brackets of the unit Replace blower access door END OF FILTER GOES INTO FILTER RACK FIRST Page 4 Air filters may also be located outside of the furnace using a SIDE FILTER FRAME Z FILTER ACCESS UPFLOW ONLY Upflow Horizontal Furnace Filters The Upflow Horizontal furnace when installed horizon tally requires a horizontal filter kit The filters may be located remote to the furnace or in the return air duct near the furnace Check with your dealer for the location of your filters An upflow horizontal furnacein horizontalreturn air filter application as shown features two 14 x 20 x 1 filters in the 14 1 2 wide furnace cabinets or two 16 x 20 x 1 filters in the 17 1 2 21 and 24 1 2 wide furnace cabi nets it wt uii in My UPFLOW HORIZONTAL WITH FILTER KIT To replace filters remove the filter access door lift the filter from the lower bracket and shift the filter to the side to free the top filter from the bracket and slide the filters out through the filter access door After cleaning replace the filters in the same manner making sure that the filters are secured in place in both top and bottom filter brackets Replace filter access door Air filters may also be located outside of the furnace using aremote filter grille The filter grille could beina hallway wall or in the ceiling Check with your dealer
6. valve malfunction and consequent overheating link will open and close off flow of all gas See instruction label on front panel of heat exchanger Your furnace may have a Knob Switch or a Toggle Switch to turn the gas ON or OFF ON Or OFF Position Markers Gas Cock Knob Turns Position Markers Are Stationary Pub No 32 5034 02 SWITCH TOGGLES ON OR OFF Page 9 Limited Warranty High Efficiency Induced Draft Gas Furnace UE DE UD R DD R UD RV DD RV UD C DD C CUB and CDB Models Less Than 20 Tons for Residential Use Parts Only This limited warranty is extended by American Standard Inc to the original purchaser and to any succeeding owner of the real property to which the Gas Furnace is originally affixed and applies to products purchased and retained for use within the U S A and Canada If any part of your Gas Furnace fails because of a manufacturing defect within five years from the date of the original purchase Warrantor will furnish without charge the required replacement part Any local transportation related service labor air filters and diagnosis calls are not included In addition if the steel heat exchanger fails because of a manufacturing defect within the sixth through twentieth year from the date of original purchase Warrantor will furnish without charge a replacement heat exchanger Any local transportation related service labor air filters and diagnosis calls are not included
7. 1 and 24 1 2 wide furnace cabinets pili iin al no DOWNFLOW HORIZONTAL FILTER DOWNFLOW FILTER TABLE REQUIRED FILTERS DOWNFLOW CABINET WIDTH FILTER QUANTITY amp SIZE 14 1 2 2 14 X20 X 1 17 1 2 2 16 X 20 X 1 L xX 2 16 X20 X 1 24 1 Page 5 The problem solver A furnace is not a household appliance It is complex and requires professional maintenance and repair That s why attempts at do it yourself repairs on an in warranty unit may void the remainder of your warranty Other than performing the simple maintenance recom mended in this manual you should not attempt to make any adjustments to your furnace Your dealer will be able to take care of any questions or problems you may have A periodic inspection of your furnace should be made by a qualified service agency at the start of each heating season Keep your furnace looking like new for years Clean the enamel finish of your furnace with ordinary soap and water For stubborn grease spots use a household detergent Lacquer thinner or other synthetic solvents may damage the finish AWARNING Do not touch igniter It is extremely hot Failure to follow this warning could result in severe burns other injury property damage or death ACAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dan gerous operation Verify proper operation after servicing
8. 711 9010 to change design and specifications without notice Pub No 32 5034 02 Page 12 User s Information Guide 32 5034 2 Noncondensing Gas Furnaces Upflow Horizontal and Downflow Horizontal WARNING Ifthe information in this manual is not followed exactly a fire or explosion may result causing property damage personal in jury or loss of life Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch do not use any phone in your build ing Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas sup plier call the fire department Installation and service must be per formed by a qualified installer service agency or the gas supplier American Standard Inc 2001 U OODD OD0000 ODOO00 O0000 00000 OO00UH D000 D00000 UIUI 1UOUT D00000 D0 0000 AWARNING pisconnect power to the unit before removing the blower door Failure to follow this warning could result in property damage personal injury or death AWARNING 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 DISCON
9. AL MAIN SHUTOFF VALVE AUTOMATIC GAS VALVE WITH MANUAL SHUTOFF VALVE WITH MANUAL SHUTOFF MANUAL MAIN SHUTOFF VALVE Manual Main Gas Shut off Valve May Be Located on the Top or Bottom Side NOTE THE LOCATION OF THE MANUAL MAIN GAS SHUTOFF VALVE FOR YOUR FUR NACE Have your installer or servicer show you the location if you have any questions Page 8 Pub No 32 5034 02 To light furnace AWARNING FIRE OR EXPLOSION HAZARD Failure to follow the safety warnings exactly could result in serious injury death or property damage Never test for gas leaks with an open flame Use a com mercially available soap solution made specifically for the detection of leaks to check all connections A fire or explosion may result causing property damage personal injury or loss of life Lighting instructions Your furnace is equipped with a hot surface direct ignition device 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 control access panel 4 Turn gas cock knob on main gas valve with unit clockwise to OFF position If external gas cock is used turn to OFF position 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
10. AL SHUTOFF Manual Main Gas Shut off Valve May Be Located on the Left or Right Side MANUAL MAIN SHUTOFF VALVE AUTOMATIC GAS VALVE WITH MANUAL SHUTOFF VALVE WITH MANUAL SHUTOFF MANUAL MAIN SHUTOFF VALVE Manual Main Gas Shut off Valve May Be Located on the Top or Bottom Side NOTE THE LOCATION OF THE MANUAL MAIN GAS SHUTOFF VALVE FOR YOUR FUR NACE Have your installer or servicer show you the location if you have any questions Page 8 Pub No 32 5034 02 To light furnace AWARNING FIRE OR EXPLOSION HAZARD Failure to follow the safety warnings exactly could result in serious injury death or property damage Never test for gas leaks with an open flame Use a com mercially available soap solution made specifically for the detection of leaks to check all connections A fire or explosion may result causing property damage personal injury or loss of life Lighting instructions Your furnace is equipped with a hot surface direct ignition device 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 control access panel 4 Turn gas cock knob on main gas valve with unit clockwise to OFF position If external gas cock is used turn to OFF position Allow 5 minutes for any gas within the unit to escape LP g
11. California law Proposition 65 WARNING This product contains fiberglass wool insulation Fiberglass dust and ceramic fibers are be lieved by the state of California to cause cancer through inhalation Glasswool fibers may also cause respiratory skin or eye irritation PRECAUTIONARY MEASURES Avoid breathing fiberglass dust Use a NIOSH approved dust mist respirator Avoid contact with the skin or eyes Wear long sleeved loose fitting clothing gloves and eye protection Wash clothes separately from other clothing rinse washer thoroughly Operations such as sawing blowing tear out and spray ing may generate fiber concentrations requiring additional respiratory protection Use the appropriate NIOSH ap proved respirator in these situations The following warning complies with State of California law Proposition 65 AWAR N I N G Hazardous Gases Exposure to fuel substances or by products of incomplete fuel combustion are believed by the State of California to cause cancer birth defects or other reproductive harm Pub No 32 5034 02 FIRST AID MEASURES Eye Contact Flush eyes with water to remove dust If symptoms persist seek medical atten tion Skin Contact Wash affected areas gently with soap and warm water after handling Page 11 CERTIFIED American Standard Inc 6790 Troup Hignway Since th facti h licy of conti duct and product data i t it the right ince the manufacturer ha
12. EEN UNDER WATER IMMEDIATELY CALL A QUALIFIED SERVICE TECHNICIAN TO INSPECT THE FURNACE AND TO REPLACE ANY PART OF THE CONTROL SYSTEM AND ANY GAS CONTROL WHICH HAS BEEN UNDER WATER For your safety Furnace area must be kept clear and free of combustible materials gasoline and other flammable vapors and liq uids Air for combustion and ventilation The flow of combustion and ventilating air must not be obstructed from reaching the furnace Air openings pro vided in the casing of furnace must be kept free of obstruc tions which would restrict airflow thereby affecting effi ciency and safe operation of your furnace Also air openings provided to the area in which the furnace is installed and the space around the furnace shall not be blocked or obstructed Keep this in mind should you choose to remodel the area which contains your furnace Furnaces must have air for proper performance If additional insulation is added after the furnace is in stalled the area around the furnace must be inspected to ensure it is free and clear of insulation If this furnace is installed in an attic or other insulated space it must be kept free and clear of all insulating materials as some insulat ing materials are combustible MANUAL MAIN SHUTOFF VALVE AUTOMATIC GAS VALVE WITH MANUAL SHUTOFF GROUND f UNION JOINT MANUAL MAIN SHUTOFF VALVE m GROUND UNION JOINT DRIP LEG 7 AUTOMATIC GAS VALVE WITH MANU
13. HE UNIT OPERATING IT IS THE TECHNICIANS RESPONSIBILTY TO RECOGNIZE THESE HAZARDS AND PROCEED SAFELY AWARNING po not use THIS UNIT IF ANY PART HAS BEEN UNDER WATER IMMEDIATELY CALL A QUALIFIED SERVICE TECHNICIAN TO INSPECT THE FURNACE AND TO REPLACE ANY PART OF THE CONTROL SYSTEM AND ANY GAS CONTROL WHICH HAS BEEN UNDER WATER Pub No 32 5034 02 AWARNING FIRE OR EXPLOSION HAZARD Failure to follow the safety warnings exactly could result in serious injury death or property damage Improper servicing could result in dangerous opera tion serious injury death or property damage GENERAL INFORMATION WARNING Improper installation adjustment al teration service or maintenance can cause injury or property damage Refer to the installation in structions provided with the furnace and this manual For assistance or additional information consult a qualified installer service agency or the gas supplier This information is intended for use by individuals pos sessing adequate backgrounds of electrical and mechani cal experience Any attempt to repair a central air condi tioning product may result in personal injury and or prop erty damage American Standard Inc or seller cannot be responsible for the interpretation of this information nor can it assume any liability in connection with its use Safety signal words are used to designate a degree or level of seriousness associated with a particular hazard
14. NECTED AND THE MAIN GAS VALVE MUST BE TURNED OFF IF OPERATING CHECKS MUST BE PERFORMED WITH THE UNIT OPERATING IT IS THE TECHNICIANS RESPONSIBILTY TO RECOGNIZE THESE HAZARDS AND PROCEED SAFELY AWARNING po not use THIS UNIT IF ANY PART HAS BEEN UNDER WATER IMMEDIATELY CALL A QUALIFIED SERVICE TECHNICIAN TO INSPECT THE FURNACE AND TO REPLACE ANY PART OF THE CONTROL SYSTEM AND ANY GAS CONTROL WHICH HAS BEEN UNDER WATER Pub No 32 5034 02 AWARNING FIRE OR EXPLOSION HAZARD Failure to follow the safety warnings exactly could result in serious injury death or property damage Improper servicing could result in dangerous opera tion serious injury death or property damage GENERAL INFORMATION WARNING Improper installation adjustment al teration service or maintenance can cause injury or property damage Refer to the installation in structions provided with the furnace and this manual For assistance or additional information consult a qualified installer service agency or the gas supplier This information is intended for use by individuals pos sessing adequate backgrounds of electrical and mechani cal experience Any attempt to repair a central air condi tioning product may result in personal injury and or prop erty damage American Standard Inc or seller cannot be responsible for the interpretation of this information nor can it assume any liability in connection with its use Safety signal word
15. Save time and money Before calling for service check the following Possible Trouble Possible Remed No Heating Blower Does not operate Blown fuse or tripped circuit breaker Defective component Burner does not ignite Main gas line turned off Blower door removed or ajar Lockout Insufficient Heating Blower operates continuously Dirty air filters Blocked supply or return registers No Heat Vent motor is running condensate drain Thermostat set incorrectly ik Restricted or plugged furnace Adjust thermostat See operating instructions Replace or reset protective device or call for servicer Most controls are automatic and will recycle If your unit still does not operate call for servicer Call servicer Have gas company check Close door securely to restore power to blower and gas valve Turn power on off on off twice in 30 secs Clean or replace filters Make sure registers are open and No obstacles blocking off the air Remove drain clamps to condensate trap and drain pan outlet Flush or clear drain blockage Reinstall clamps Unusual Noise Call your servicer AWARNING CARBON MONOXIDE POISONING HAZARD Failure to follow the installation and operation instruc tions for the venting system s operation could resultin carbon monoxide poisoning or death Page 6 Pub No 32 5034 02 Maintenance information Never stop the cooling system by shutting off the main powe
16. The signal words for safety markings are DANGER WARNING and CAUTION a DANGER indicates an imminently hazardous situation which if not avoided will result in death or serious injury This signal word is limited to the most extreme situations b WARNING indicates a potentially hazardous situa tion which if not avoided could result in death or serious injury c CAUTION indicates a potentially hazardous situa tion which if not avoided may result in minor or moderate injury It is also used to alert against unsafe practices and hazards involving only prop erty damage There must be a free flow of fresh air sufficient for efficient combustion and safe ventilation of your furnace Do not allow the louvers on the front panels of your furnace to become blocked as this will restrict the flow of fresh air The combustion air for your furnace must be fresh uncon taminated air Paints varnishes laundry bleaches deter gents many household cleaners water softening salts adhesives and all such products release fumes containing compounds which could lead to early heat exchanger and vent system deterioration Do not store these type of products near your furnace and consider fresh air for your furnace during construction or remodeling Page 2 Never store gasoline combustible materials or other flammable liquids or vapors near your furnace If you have a problem check the Problem Solver section of this manual before you
17. User s Information Guide 32 5034 2 Noncondensing Gas Furnaces Upflow Horizontal and Downflow Horizontal WARNING Ifthe information in this manual is not followed exactly a fire or explosion may result causing property damage personal in jury or loss of life Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch do not use any phone in your build ing Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas sup plier call the fire department Installation and service must be per formed by a qualified installer service agency or the gas supplier American Standard Inc 2001 U OODD OD0000 ODOO00 O0000 00000 OO00UH D000 D00000 UIUI 1UOUT D00000 D0 0000 AWARNING pisconnect power to the unit before removing the blower door Failure to follow this warning could result in property damage personal injury or death AWARNING 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 DISCONNECTED AND THE MAIN GAS VALVE MUST BE TURNED OFF IF OPERATING CHECKS MUST BE PERFORMED WITH T
18. 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 to ON marker 6 Replace control 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 seconds main gas valve will open and burners will ignite 8 When thermostat is satisfied main burners will extinguish 9 If main burners fail to ignite lower thermostat setting or disconnect electrical supply wait 5 minutes raise thermostat setting above indicated temperature 10 If furnace will not light turn OFF all gas and electricity to unit and call servicer or gas supplier For complete shutdown Turn gas cock knob on main gas valve to OFF position Discon nect electrical supply to unit CAUTION If this is done during the cold weather months provisions must be taken to prevent freeze up of all water pipes and water receptacles Whenever your house is to be vacant arrange to have someone inspect your house for proper temperature If your furnace should fail to operate damage could result such as frozen water pipes Safety cutoff device thermal limit All models are equipped with a fusible link behind gas valve In case of main gas valve malfunction and consequent overheating link will open and close off flow of all gas Se
19. as 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 to ON marker 6 Replace control 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 seconds main gas valve will open and burners will ignite 8 When thermostat is satisfied main burners will extinguish 9 If main burners fail to ignite lower thermostat setting or disconnect electrical supply wait 5 minutes raise thermostat setting above indicated temperature 10 If furnace will not light turn OFF all gas and electricity to unit and call servicer or gas supplier For complete shutdown Turn gas cock knob on main gas valve to OFF position Discon nect electrical supply to unit CAUTION If this is done during the cold weather months provisions must be taken to prevent freeze up of all water pipes and water receptacles Whenever your house is to be vacant arrange to have someone inspect your house for proper temperature If your furnace should fail to operate damage could result such as frozen water pipes Safety cutoff device thermal limit All models are equipped with a fusible link behind gas valve In case of main gas
20. berglass dust and ceramic fibers are be lieved by the state of California to cause cancer through inhalation Glasswool fibers may also cause respiratory skin or eye irritation PRECAUTIONARY MEASURES Avoid breathing fiberglass dust Use a NIOSH approved dust mist respirator Avoid contact with the skin or eyes Wear long sleeved loose fitting clothing gloves and eye protection Wash clothes separately from other clothing rinse washer thoroughly Operations such as sawing blowing tear out and spray ing may generate fiber concentrations requiring additional respiratory protection Use the appropriate NIOSH ap proved respirator in these situations The following warning complies with State of California law Proposition 65 AWAR N I N G Hazardous Gases Exposure to fuel substances or by products of incomplete fuel combustion are believed by the State of California to cause cancer birth defects or other reproductive harm Pub No 32 5034 02 FIRST AID MEASURES Eye Contact Flush eyes with water to remove dust If symptoms persist seek medical atten tion Skin Contact Wash affected areas gently with soap and warm water after handling Page 11 CERTIFIED American Standard Inc 6790 Troup Hignway Since th facti h licy of conti duct and product data i t it the right ince the manufacturer has a policy of continuous product and product data improvement it reserves the rig Tyler TX 75
21. call for a possibly unneeded service call 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 AWARNING These furnaces are not approved or intended for installation in manufactured mobile housing trailers or recreational vehicles Failure to follow this warning could result in property damage personal injury or death AWARNING Do not touch igniter It is extremely hot Failure to follow this warning could result in severe burns other injury property damage or death ACAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dan gerous operation Verify proper operation after servicing AWARNING CARBON MONOXIDE POISONING HAZARD Failure to follow the installation and operation instruc tions for the venting system s operation could result in carbon monoxide poisoning or death Pub No 32 5034 02 Filter maintenance reduces energy use AWARNING Disconnect power to the unit before removing the blower door Failure to follow this warning could result in property damage personal injury or death A clean filter saves money When the furnace circulates and filters the air in your home dust and dirt particles build up on the filter Excessive accumulation can block the airflow forcing the unit to work harde
22. e instruction label on front panel of heat exchanger Your furnace may have a Knob Switch or a Toggle Switch to turn the gas ON or OFF ON Or OFF Position Markers Gas Cock Knob Turns Position Markers Are Stationary Pub No 32 5034 02 SWITCH TOGGLES ON OR OFF Page 9 Limited Warranty High Efficiency Induced Draft Gas Furnace UE DE UD R DD R UD RV DD RV UD C DD C CUB and CDB Models Less Than 20 Tons for Residential Use Parts Only This limited warranty is extended by American Standard Inc to the original purchaser and to any succeeding owner of the real property to which the Gas Furnace is originally affixed and applies to products purchased and retained for use within the U S A and Canada If any part of your Gas Furnace fails because of a manufacturing defect within five years from the date of the original purchase Warrantor will furnish without charge the required replacement part Any local transportation related service labor air filters and diagnosis calls are not included In addition if the steel heat exchanger fails because of a manufacturing defect within the sixth through twentieth year from the date of original purchase Warrantor will furnish without charge a replacement heat exchanger Any local transportation related service labor air filters and diagnosis calls are not included This limited warranty does not cover failure of your gas furnace if it is damaged while in yo
23. ed warranty is for residential usage of this equipment and not applicable when this equipment is used for a commercial application Acommercial use is any application where the end purchaser uses the product for other than personal family or household purposes Warranty Information It s always a good idea to keep records which will save you time and money If it s necessary to have your FURNACE repaired the service man will want to know if your unit is still under Warranty To save time take a few minutes to record the following information here Model Number Serial Number Date of Purchase Extended warranties are available from the manufacturer through your dealer Service Information Call your installing dealer if the unit is inoperative Before you call always check the following to be sure service is really required a Be sure the main switch that supplies power to the unit is in the ON position b Replace any burned out fuses or reset circuit breakers c Be sure the thermostat is properly set The limited warranty is backed by the manufacturer and any representations made about extending the limited warranty would be backed by the manufacturer if and only if an extended warranty agreement was received from the manufacturer Page 10 Pub No 32 5034 02 The following warning complies with State of California law Proposition 65 WARNING This product contains fiberglass wool insulation Fi
24. for the exact location of your filter and the method of changing the filters Pub No 32 5034 02 FACTORY SUPPLIED UPFLOW FURNACE RETURN AIR FILTERS WIDTH BOTTOM FILTER SIDE FILTER 17 X25 X1 17 1 2 X 25 X 1 20 X25 X1 17 1 2 X 25 X 1 24 1 2 24 X25 X1 17 1 2 X 25 X 1 NOTE On 5 or 6 ton airflow models if the airflow requirement exceeds 1800 CFM these models will require filters on both sides OR 1 side and the bottom OR just the bottom AWARNING pisconnect power to the unit before removing the blower door Failure to follow this warning could result in property damage personal injury or death Downflow Furnace Filters Downflow Horizontal furnaces use 2 standard size perma nent type air filters which may be located remote to the furnace or in the return air duct Check with your dealer for the location of your filters A downflow horizontal furnace vertical return air filter application as shown features two 14 x 20 x 1 filter in the 14 1 2 wide furnace cabinets or two 16 x 20 x 1 filter in the 17 1 2 21 and 24 1 2 wide furnace cabinets DOWNFLOW FILTER Pub No 32 5034 02 A downflow horizontal furnace with horizontal return air filter application as shown features two 14 x 20 x 1 filter in the 14 1 2 wide furnace cabinets or two 16 x 20 x 1 filter in the 17 1 2 21 and 24 1 2 wide furnace cabinets pili iin al no DOWNFLOW HORIZONTAL FILTER
25. grille The filter grille could beina hallway wall or in the ceiling Check with your dealer for the exact location of your filter and the method of changing the filters Pub No 32 5034 02 FACTORY SUPPLIED UPFLOW FURNACE RETURN AIR FILTERS WIDTH BOTTOM FILTER SIDE FILTER 17 X25 X1 17 1 2 X 25 X 1 20 X25 X1 17 1 2 X 25 X 1 24 1 2 24 X25 X1 17 1 2 X 25 X 1 NOTE On 5 or 6 ton airflow models if the airflow requirement exceeds 1800 CFM these models will require filters on both sides OR 1 side and the bottom OR just the bottom AWARNING pisconnect power to the unit before removing the blower door Failure to follow this warning could result in property damage personal injury or death Downflow Furnace Filters Downflow Horizontal furnaces use 2 standard size perma nent type air filters which may be located remote to the furnace or in the return air duct Check with your dealer for the location of your filters A downflow horizontal furnace vertical return air filter application as shown features two 14 x 20 x 1 filter in the 14 1 2 wide furnace cabinets or two 16 x 20 x 1 filter in the 17 1 2 21 and 24 1 2 wide furnace cabinets DOWNFLOW FILTER Pub No 32 5034 02 A downflow horizontal furnace with horizontal return air filter application as shown features two 14 x 20 x 1 filter in the 14 1 2 wide furnace cabinets or two 16 x 20 x 1 filter in the 17 1 2 2
26. heating season by a qualified service technician and cleaned annually for best operation 6 CIRCUIT PROTECTION If blower or gas valve fail to operate the cause could be the circuit breaker or a loose or blown fuse Replace fuse or reset circuit breaker 7 OPERATION Your warm air furnace should not be operated in a corrosive atmosphere Paint solvents clean ing chemicals spray propellants and bleaches should not be used in the vicinity of the furnace during normal operation 8 COOLING COIL CONDENSATE DRAIN If you have a cooling coil installed with your furnace condensate drains should be checked and cleaned periodically to as sure that condensate can drain freely from coil to drain If condensate cannot drain freely water damage could occur 9 AIR CIRCULATION To ensure increased comfort blower on this unit may be operated continuously for both heating and cooling This will result in constantly filtered air and aid in maintaining more even temperatures by avoiding temperature stratification throughout the condi tioned area To accomplish constant air circulation set your thermostat fan switch to ON Page 7 AWARNING pisconnect power to the unit before removing the blower door Failure to follow this warning could result in property damage personal injury or death AWARNING po not use THis UNIT IF ANY PART HAS BEEN UNDER WATER IMMEDIATELY CALL A QUALIFIED SERVICE TECHNICIAN TO INSPECT THE FURNACE AND TO
27. items must be inspected for signs of corrosion and or deterioration at the beginning of each heating season by a qualified service technician and cleaned annually for best operation 6 CIRCUIT PROTECTION If blower or gas valve fail to operate the cause could be the circuit breaker or a loose or blown fuse Replace fuse or reset circuit breaker 7 OPERATION Your warm air furnace should not be operated in a corrosive atmosphere Paint solvents clean ing chemicals spray propellants and bleaches should not be used in the vicinity of the furnace during normal operation 8 COOLING COIL CONDENSATE DRAIN If you have a cooling coil installed with your furnace condensate drains should be checked and cleaned periodically to as sure that condensate can drain freely from coil to drain If condensate cannot drain freely water damage could occur 9 AIR CIRCULATION To ensure increased comfort blower on this unit may be operated continuously for both heating and cooling This will result in constantly filtered air and aid in maintaining more even temperatures by avoiding temperature stratification throughout the condi tioned area To accomplish constant air circulation set your thermostat fan switch to ON Page 7 AWARNING pisconnect power to the unit before removing the blower door Failure to follow this warning could result in property damage personal injury or death AWARNING po not use THis UNIT IF ANY PART HAS B
28. le Remed No Heating Blower Does not operate Blown fuse or tripped circuit breaker Defective component Burner does not ignite Main gas line turned off Blower door removed or ajar Lockout Insufficient Heating Blower operates continuously Dirty air filters Blocked supply or return registers No Heat Vent motor is running condensate drain Thermostat set incorrectly ik Restricted or plugged furnace Adjust thermostat See operating instructions Replace or reset protective device or call for servicer Most controls are automatic and will recycle If your unit still does not operate call for servicer Call servicer Have gas company check Close door securely to restore power to blower and gas valve Turn power on off on off twice in 30 secs Clean or replace filters Make sure registers are open and No obstacles blocking off the air Remove drain clamps to condensate trap and drain pan outlet Flush or clear drain blockage Reinstall clamps Unusual Noise Call your servicer AWARNING CARBON MONOXIDE POISONING HAZARD Failure to follow the installation and operation instruc tions for the venting system s operation could resultin carbon monoxide poisoning or death Page 6 Pub No 32 5034 02 Maintenance information Never stop the cooling system by shutting off the main power If the main power to your air conditioner is ever discon nected for more than three hour
29. lows the door to tilt forward for filter servicing or replacement without the door being re moved The furnace filter in the bottom or side configu ration can be removed by simply turning the two latches on the blower door 1 4 turn and tilting the door forward The blower door may be removed ifnecessary by tilting the door outward 2 to 3 inches then pulling up The door will slide out of the hinge for removal For replacement simply insert the blower door bottom into the space between the furnace base front and the hinge then tilt inward and latch Typical Upflow Right Side Return Filter Installation Page 3 FILTER RACK RAILS TAE a SPRINGS AUTOMATIC N ADJUSTMENT RETAINING PIN Both Sides Filter Rack Assembly The filter rails are spring loaded for automatic adjustment to allow standard size locally obtainable replacement filters The filter rack itself slides to adjust to the required width needed for bottom or side return Always insert the chamfer angle edged sides end first a A A ZL LL The furnace filter may be secured with filter retaining brackets for right side return on smaller furnaces To replace filters on these furnaces remove the blower access door push back to flex the filter and clear the filter retaining bracket at the front of the unit Gently pull the filter out After cleaning replace the filter in the same manner making sure that
30. ly pull the filter out After cleaning replace the filter in the same manner making sure that filter is secured in place in both front and back filter retaining brackets of the unit Replace blower access door END OF FILTER GOES INTO FILTER RACK FIRST Page 4 Air filters may also be located outside of the furnace using a SIDE FILTER FRAME Z FILTER ACCESS UPFLOW ONLY Upflow Horizontal Furnace Filters The Upflow Horizontal furnace when installed horizon tally requires a horizontal filter kit The filters may be located remote to the furnace or in the return air duct near the furnace Check with your dealer for the location of your filters An upflow horizontal furnacein horizontalreturn air filter application as shown features two 14 x 20 x 1 filters in the 14 1 2 wide furnace cabinets or two 16 x 20 x 1 filters in the 17 1 2 21 and 24 1 2 wide furnace cabi nets it wt uii in My UPFLOW HORIZONTAL WITH FILTER KIT To replace filters remove the filter access door lift the filter from the lower bracket and shift the filter to the side to free the top filter from the bracket and slide the filters out through the filter access door After cleaning replace the filters in the same manner making sure that the filters are secured in place in both top and bottom filter brackets Replace filter access door Air filters may also be located outside of the furnace using aremote filter
31. ormed only by a qualified servicer or service agency 3 IGNITER This unit has a special hot surface direct ignition device that automatically lights the burners Please note that it is very fragile and should be handled with care CAUTION Do not touch igniter It is extremely hot 4 BURNER Gas burners do not normally require sched uled servicing however accumulation of foreign material may cause a yellowing flame or delayed ignition Either condition indicates that a service callis required For best operation burners must be cleaned annually using brushes and vacuum cleaner Turn off gas and electric power supply To clean burners remove top burner bracket and lift burner from orifice NOTE Be careful not to break igniter when remov ing burners Clean burners with brush and or vacuum cleaner Reassemble parts by reversal of the above proce dure Pub No 32 5034 02 BURNER BRACKET MANIFOLD MAIN BURNER ORIFICE Typical NOTE On LP propane units some light yellow tipping of the outer mantle is normal Inner mantle should be bright blue Natural gas units should not have any yellow tipped flames This condition indicates that a service call is required For best operation burners must be cleaned annually using brushes and vacuum cleaner NOTE On LP propane units due to variations in BTU content and altitude servicing may be required at shorter intervals 5 HEAT EXCHANGER FLUE PIPE These
32. ot surface direct ignition device that automatically lights the burners Please note that it is very fragile and should be handled with care CAUTION Do not touch igniter It is extremely hot 4 BURNER Gas burners do not normally require sched uled servicing however accumulation of foreign material may cause a yellowing flame or delayed ignition Either condition indicates that a service callis required For best operation burners must be cleaned annually using brushes and vacuum cleaner Turn off gas and electric power supply To clean burners remove top burner bracket and lift burner from orifice NOTE Be careful not to break igniter when remov ing burners Clean burners with brush and or vacuum cleaner Reassemble parts by reversal of the above proce dure Pub No 32 5034 02 BURNER BRACKET MANIFOLD MAIN BURNER ORIFICE Typical NOTE On LP propane units some light yellow tipping of the outer mantle is normal Inner mantle should be bright blue Natural gas units should not have any yellow tipped flames This condition indicates that a service call is required For best operation burners must be cleaned annually using brushes and vacuum cleaner NOTE On LP propane units due to variations in BTU content and altitude servicing may be required at shorter intervals 5 HEAT EXCHANGER FLUE PIPE These items must be inspected for signs of corrosion and or deterioration at the beginning of each
33. r If the main power to your air conditioner is ever discon nected for more than three hours turn off the thermostat Then wait for at least three more hours after the power has been restored before turning the thermostat back on Failure to follow this procedure could result in damage to your air conditioning system 1 GENERAL INSPECTION Examine the furnace instal lation for the following items a All flue product carrying areas external to the fur nace i e chimney vent connector are clear and free of obstruction b The vent connector is in place slopes upward and is physically sound without holes or excessive corrosion c The return air duct connection s is physically sound is sealed to the furnace and terminates outside the space containing the furnace d The physical support of the furnace should be sound without sagging cracks gaps etc around the base so as to provide a seal between the support and the base e There are no obvious signs of deterioration of the furnace AWARNING Do not touch igniter It is extremely hot Failure to follow this warning could result in severe burns 2 BLOWERS The blower size and speed determine the air volume delivered by the furnace The blower motor bearings are factory lubricated and under normal operat ing conditions usually do not require servicing Annual cleaning of the blower wheel and housing is recommended for maximum air output and this must be perf
34. r to maintain desired tempera tures And the harder your unit has to work the more energy it uses So you pay more any time your system is run ning with a dirty filter CAUTION Never operate your unit for either heating or cooling with filters removed Help ensure top efficiency by cleaning the filter once a month If you have an upflow furnace you can wash or change the filter once a month Clean it twice a month during seasons when the unit runs more often Your furnace came from the factory with a cleanable filter You can clean the filter with a vacuum OR you can wash it with a household detergent Good quality high velocity filters may be used for replacements in upflow furnaces With the new patented filter rack on the upflow models all cleaning or replacing of filters is quick and easy Clean filters guarantee optimum performance of your system Replacing your filter When replacing your furnace filters use a high velocity type filter On upflow furnaces standard size 1 thick high velocity filters will fit into the patented filter rack which will automatically adjust in width to fit Filters are available from your dealer Pub No 32 5034 02 How to remove your filter AWARNING Disconnect power to the unit before removing the blower door Failure to follow this warning could result in property damage personal injury or death The upflow furnace blower door has a hinge at the bottom which al
35. rsonal injury or death The upflow furnace blower door has a hinge at the bottom which allows the door to tilt forward for filter servicing or replacement without the door being re moved The furnace filter in the bottom or side configu ration can be removed by simply turning the two latches on the blower door 1 4 turn and tilting the door forward The blower door may be removed ifnecessary by tilting the door outward 2 to 3 inches then pulling up The door will slide out of the hinge for removal For replacement simply insert the blower door bottom into the space between the furnace base front and the hinge then tilt inward and latch Typical Upflow Right Side Return Filter Installation Page 3 FILTER RACK RAILS TAE a SPRINGS AUTOMATIC N ADJUSTMENT RETAINING PIN Both Sides Filter Rack Assembly The filter rails are spring loaded for automatic adjustment to allow standard size locally obtainable replacement filters The filter rack itself slides to adjust to the required width needed for bottom or side return Always insert the chamfer angle edged sides end first a A A ZL LL The furnace filter may be secured with filter retaining brackets for right side return on smaller furnaces To replace filters on these furnaces remove the blower access door push back to flex the filter and clear the filter retaining bracket at the front of the unit Gent
36. s turn off the thermostat Then wait for at least three more hours after the power has been restored before turning the thermostat back on Failure to follow this procedure could result in damage to your air conditioning system 1 GENERAL INSPECTION Examine the furnace instal lation for the following items a All flue product carrying areas external to the fur nace i e chimney vent connector are clear and free of obstruction b The vent connector is in place slopes upward and is physically sound without holes or excessive corrosion c The return air duct connection s is physically sound is sealed to the furnace and terminates outside the space containing the furnace d The physical support of the furnace should be sound without sagging cracks gaps etc around the base so as to provide a seal between the support and the base e There are no obvious signs of deterioration of the furnace AWARNING Do not touch igniter It is extremely hot Failure to follow this warning could result in severe burns 2 BLOWERS The blower size and speed determine the air volume delivered by the furnace The blower motor bearings are factory lubricated and under normal operat ing conditions usually do not require servicing Annual cleaning of the blower wheel and housing is recommended for maximum air output and this must be performed only by a qualified servicer or service agency 3 IGNITER This unit has a special h
37. s a policy of continuous product and product data improvement it reserves the rig Tyler TX 75711 9010 to change design and specifications without notice Pub No 32 5034 02 Page 12
38. s are used to designate a degree or level of seriousness associated with a particular hazard The signal words for safety markings are DANGER WARNING and CAUTION a DANGER indicates an imminently hazardous situation which if not avoided will result in death or serious injury This signal word is limited to the most extreme situations b WARNING indicates a potentially hazardous situa tion which if not avoided could result in death or serious injury c CAUTION indicates a potentially hazardous situa tion which if not avoided may result in minor or moderate injury It is also used to alert against unsafe practices and hazards involving only prop erty damage There must be a free flow of fresh air sufficient for efficient combustion and safe ventilation of your furnace Do not allow the louvers on the front panels of your furnace to become blocked as this will restrict the flow of fresh air The combustion air for your furnace must be fresh uncon taminated air Paints varnishes laundry bleaches deter gents many household cleaners water softening salts adhesives and all such products release fumes containing compounds which could lead to early heat exchanger and vent system deterioration Do not store these type of products near your furnace and consider fresh air for your furnace during construction or remodeling Page 2 Never store gasoline combustible materials or other flammable liquids or vapors near your f
39. up on the filter Excessive accumulation can block the airflow forcing the unit to work harder to maintain desired tempera tures And the harder your unit has to work the more energy it uses So you pay more any time your system is run ning with a dirty filter CAUTION Never operate your unit for either heating or cooling with filters removed Help ensure top efficiency by cleaning the filter once a month If you have an upflow furnace you can wash or change the filter once a month Clean it twice a month during seasons when the unit runs more often Your furnace came from the factory with a cleanable filter You can clean the filter with a vacuum OR you can wash it with a household detergent Good quality high velocity filters may be used for replacements in upflow furnaces With the new patented filter rack on the upflow models all cleaning or replacing of filters is quick and easy Clean filters guarantee optimum performance of your system Replacing your filter When replacing your furnace filters use a high velocity type filter On upflow furnaces standard size 1 thick high velocity filters will fit into the patented filter rack which will automatically adjust in width to fit Filters are available from your dealer Pub No 32 5034 02 How to remove your filter AWARNING Disconnect power to the unit before removing the blower door Failure to follow this warning could result in property damage pe
40. ur possession failure attributable or caused by unreasonable use of the gas furnace and or failure to properly maintain the gas furnace as set forth in the Use and Care manual This limited warranty applies to product installed on or after 10 1 2001 where product is manufactured after 1 1 2000 This limited warranty is not retroactive to any installations prior to 10 1 2001 or on product produced prior to 2000 THE LIMITED WARRANTY AND LIABILITY SET FORTH HEREIN ARE IN LIEU OF ALL OTHER WARRANTIES AND LIABILITIES WHETHER IN CONTRACT OR IN NEGLIGENCE EXPRESS OR IMPLIED IN LAW OR IN FACT INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR USE AND IN NO EVENT SHALL WARRANTOR BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES Some states do not allow limitations on how long an implied limited warranty lasts or do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you This limited warranty gives you specific legal rights and you may also have other rights which vary from state to state Parts will be provided by our factory organization through an authorized service organization in your area listed in the yellow pages If you wish further help or information concerning this limited warranty contact American Standard Inc Troup Highway Tyler TX 75711 9010 Attention Manager After Sales Support GW 615 4001 This limit
41. urnace If you have a problem check the Problem Solver section of this manual before you call for a possibly unneeded service call 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 AWARNING These furnaces are not approved or intended for installation in manufactured mobile housing trailers or recreational vehicles Failure to follow this warning could result in property damage personal injury or death AWARNING Do not touch igniter It is extremely hot Failure to follow this warning could result in severe burns other injury property damage or death ACAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dan gerous operation Verify proper operation after servicing AWARNING CARBON MONOXIDE POISONING HAZARD Failure to follow the installation and operation instruc tions for the venting system s operation could result in carbon monoxide poisoning or death Pub No 32 5034 02 Filter maintenance reduces energy use AWARNING Disconnect power to the unit before removing the blower door Failure to follow this warning could result in property damage personal injury or death A clean filter saves money When the furnace circulates and filters the air in your home dust and dirt particles build
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