Goodman ACS series Service Instructions Manual
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Goodman ACS series Service Instructions Manual

80%, 90%, 95%
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Service
Instructions
80%, 90%, 95% Gas Furnaces
& Accessories
ACS, ACV, ADS, ADV, AMH, AMS, AMV, DCS, DDS,
DHS, DMS, GCH, GCS, GDH, GDS, GCV, GHS, GKS,
GME, GMH, GMS, GMV
This manual is to be used by qualified, professionally trained HVAC technicians only. Goodman does
not assume any responsibility for property damage or personal injury due to improper service
procedures or services performed by an unqualified person.
Copyright © 2006-2007
Goodman Manufacturing Company, L.P.
www.goodmanmfg.com
www.amana-hac.com
RS6610004 Rev. 2
November 2007

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Summary of Contents for Goodman ACS series

  • Page 1 DHS, DMS, GCH, GCS, GDH, GDS, GCV, GHS, GKS, GME, GMH, GMS, GMV This manual is to be used by qualified, professionally trained HVAC technicians only. Goodman does RS6610004 Rev. 2 not assume any responsibility for property damage or personal injury due to improper service November 2007 procedures or services performed by an unqualified person.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS IMPORTANT INFORMATION ......2-3 POLARIZATION & PHASING ......92 PRODUCT IDENTIFICATION ......4-14 MAINTENANCE ..........93-95 OPERATING INSTRUCTIONS ....20-22 SERVICING ..........96-128 ACCESSORIES ........... 23-27 TROUBLESHOOTING ......105-106 PRODUCT DESIGN ........28-79 SERVICING TABLE OF CONTENTS ....98 SYSTEM OPERATION ........

  • Page 3: Important Information

    To locate an authorized servicer, please consult your telephone book or the dealer from whom you purchased this product. For further assistance, please contact: CONSUMER INFORMATION LINE CONSUMER INFORMATION LINE AMANA BRAND PRODUCTS ® GOODMAN ® BRAND PRODUCTS TOLL FREE TOLL FREE 1-877-254-4729 (U.S. only) 1-877-254-4729 (U.S. only)

  • Page 4: Product Identification

    Product Type Minor Revision A: Amana Brand ® A: Initial D: Amana ® Release Distinctions Brand G: Goodman Major Revision Supply Type A: Initial Release M: Upflow/Horizontal D: Dedicated Downflow C: Downflow/Horizontal Additional Features H: High Air Flow N: Natural Gas...
  • Page 5 Chassis sizes are now 14", 17.5", 21" and 24.5" wide. Goodman® Brand 80% Gas Furnace, 39" tall, Dedicated Downflow, Induced Draft, new grey painted cabinet GDH8*****AA and front panels, PSC motor, standardized blower decks and a 120V Silicon Nitride igniter. Left or right gas...
  • Page 6 ***BC models revert back to Jakel square nose inducer. GMS8*****BD Goodman® Brand 80% Variable Speed - 2 stage heat Gas Furnace, 39" tall, Upflow/Horizontal Left or Right, GMV8*****AA 2-stage Induced Draft, new grey painted cabinet and front panels, standardized blower decks and a 120V...
  • Page 7 PRODUCT IDENTIFICATION MODEL # MFG. # DESCRIPTION Amana® Brand 90% Gas Furnace, Downflow/Horizontal Left and Right, 40" tall, Induced Draft, new two tone grey painted cabinet and front panels, PSC motor, standardized blower decks and a P1257001F ACS9* Surestart Silicon Nitride Igniter. Left or right gas pipe entry. The furnaces also feature an through P1257006F integrated electronic ignition control and a Million-Air stainless steel tubular heat exchanger.
  • Page 8 PRODUCT IDENTIFICATION MODEL # MFG. # DESCRIPTION Amana® Brand 95% Gas Furnace, Upflow/Horizontal Left or Right, 40" tall, Induced Draft, new two tone grey painted cabinet and front panels, standardized blower decks and a 120V Silicon AMH95***AA AMH95 AMH95***AB Nitride Igniter. Left or right gas pipe entry. The furnaces also feature an integrated electronic AMH95***AC ignition control and a Million-Air stainless steel tubular heat exchanger.
  • Page 9 PRODUCT IDENTIFICATION MODEL # MFG. # DESCRIPTION Amana® Distinctions™ Brand 90% Gas Furnace, Downflow/Horizontal Left and Right, 40" tall, Induced Draft, furnace design changes that include new two tone grey painted cabinet and front P1257102F, DCS9* panels, PSC motor, standardized blower decks and a Carbide Mini-Igniter. Left or right gas pipe P1257104F, P1257106F entry.
  • Page 10 17.5", 21" and 24.5" wide. Two stage heat, single stage cooling. Goodman® Brand 90% Variable Speed - 2 Stage Gas Furnace, 40" tall, Upflow/Horizontal Left or Right, Induced Draft, new grey painted cabinet and front panels, standardized blower decks and a...
  • Page 11 MFG. # DESCRIPTION Goodman® Brand 90% Variable Speed - 2 stage heat Gas Furnace, Upflow/Horizontal Left or Right, 40" tall, 2-stage Induced Draft, new grey painted cabinet and front panels, standardized blower decks and a Carbide Mini-Igniter. Left or right gas pipe entry. The furnaces also feature an integrated electronic ignition control and aluminized steel tubular heat exchanger.
  • Page 12 3 minute timed off delay when the compressor goes off. AMU1620 P1251305F Media Air Cleaner. For use with current architectural grey Goodman® and Amana® Brand 80% AMU1625 P1251306F and 90% variable speed furnace models. The Amana (AMU*) and Goodman (GMU*) Media Air...
  • Page 13 External Filter Rack Kit. For use with Goodman® and Amana® Brand 90% upflow variable speed gas furnace models AMH95, AMS9, AMS95, GMH95, GMS9, GMS95, DMS9, AMV9, GMV9, GMV95.
  • Page 14 MODEL # MFG # DESCRIPTION High Altitude Natural Gas Kit. For use with Goodman® and Amana® Brand 90% furnace models ACS9, AMS9, DCS9, DMS9, GCS9 and GMS9. These kits are required when installing P1210305F the furnaces above their maximum rated altitude. This kit contains natural gas orifices. The...
  • Page 15 ACCESSORIES AMANA BRAND & AMANA DISTINCTIONS™ BRAND 80% FURNACE ACCESSORIES ® ® Model Number ADS80453ANA ADS80703ANA ADS80904BNA ADS81155CNA ADV80703BX ADV80905CX ADV81155CX AMH80453ANA AMH80703ANA AMH80704BNA AMH80903BNA AMH80904BNA AMH80905CNA AMH81155CNA AMH81405DNA AMS80453ANA AMS80703ANA AMS80704BNA AMS80903BNA AMS80904BNA AMS80905CNA AMS81155CNA AMS81405DNA AMV80704BXA AMV80905CXA AMV81155CXA DMS80453ANA DMS80703ANA DMS80704BNA...
  • Page 16 ACCESSORIES GOODMAN ® BRAND 80% FURNACE ACCESSORIES Model Number GDS80453ANA GDS80703ANA GDS80904BNA GDS81155CNA GDH80453AXA GDH80703AXA GDH80904BXA GDH81155CXA GHS80453A*A GHS80704C*A GHS80703B*A GME80704BX* GME80905CX* GME81155CX* GMH80453ANA GMH80453AXA GMH80703ANA GMH80703AXA GMH80704BNA GMH80704BXA GMH80903BNA GMH80904BNA GMH80904BXA GMH80905CNA GMH80905CXA GMH81155CNA GMH81155CXA GMH81405DNA GMH81405DXA GMS80453ANA GMS80703ANA...
  • Page 17 Not used in this application. (4) 9,001 to 11,000 ft. (5) MUST use single stage thermostat with FTK03A Note: All installations above 7,000 ft. require a pressure switch change. Note: For installations in Canada the Goodman 90% furnace is certified only to 4,500 ft.
  • Page 18 Not used in this application. (4) 9,001 to 11,000 ft. (5) MUST use single stage thermostat with FTK03A Note: All installations above 7,000 ft. require a pressure switch change. Note: For installations in Canada the Goodman 90% furnace is certified only to 4,500 ft.

  • Page 19: Operating Instructions

    OPERATING INSTRUCTIONS...
  • Page 20 OPERATING INSTRUCTIONS...
  • Page 21 OPERATING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATING WARNING: Improper If you do not follow these instructions exactly, alteration, service or a fire or explosion may result causing property maintenance can damage, personal injury or loss of life. cause injury or property damage.
  • Page 22 OPERATING INSTRUCTIONS CONSIGNES DE SECURITE - LIRE INSTRUCTIONS DE SERVICE AVANT D'ALLUMER L'APPAREIL 1. UN INSTANT! Lisez d'abord les consignes de securite ci-dessus. 2. Reglez le thermostat a son point le plus bas. AVERTISSEMENT: Le non-respect des instructions qui suivent peut 3.

  • Page 23: Accessories

    ACCESSORIES EXTERNAL FILTER RACK KIT ( EFR01 ) SLOTS IN FILTER CLEAR SCREWS ON UNIT BLOWER DECK SCREWS UNIT SIDE PANEL FRONT OF UNIT FILTER RACK ASSEMBLY (FACE FILTER OPENING BASE TOWARDS FRONT OF UNIT OF UNIT) RETURN AIR CUTOUT AREA LOWER EDGE SCREW EFR01 EXTERNAL FILTER RACK KIT...
  • Page 24 ACCESSORIES INTERNAL FILTER RETENTION KIT RF000180 RF000181 F ILT E R A CC E S S D O O R FILTER ANGLE SCREW SIDE PANEL R ET U R N D UC T FILTER FILTER RAIL ANGLE SCREW SCREW FIL T E R BASE S UP P O RT B RA C KE T...

  • Page 25: Horizontal Installation

    ACCESSORIES CONCENTRIC VENT CONVERSION KIT ( DCVK-20 DCVK-30 ) Vent The DCVK-20 (2") or the DCVK- Maintain 12" (18" for Canada) 30 (3") is a new concentric vent kit minimum clearance above highest anticipated snow level. Maximum of approved with furnaces listed in 24"...

  • Page 26: Side Wall Vent Kit

    PRODUCT IDENTIFICATION SIDE WALL VENT KIT (0170K00000S) Description This side wall only vent kit #0170K00000S is to be used with 2” or 3” vent systems. This kit is NOT intended for use with single pipe (indirect vent) installations. The vent kit must terminate outside the structure and may be installed with the intake and exhaust pipes located side- by-side or with one pipe above the other.
  • Page 27 ACCESSORIES CONCENTRIC VENT CONVERSION KIT ( HCVK VCVK ) V e rtic a l (V C V K ) H o riz o n ta l (H C V K ) Vent/Flue Termination (Tee, Pipe, & 2" to 4" Reducer) Combustion Connection for Combustion Air...

  • Page 28: Product Design

    PRODUCT DESIGN Safety Product Application Please adhere to the following warnings and cautions when This product is designed for use as a residential home gas installing, adjusting, altering, servicing, or operating the fur- furnace. It is not designed or certified for use in mobile home, nace.

  • Page 29: Location Requirements And Considerations

    PRODUCT DESIGN American National Standards Institute the Vent/Flue Pipe and Combustion Air Pipe -Termi- nation Locations section in this manual or the instal- 1430 Broadway lation instructions to determine if the piping system New York, NY 10018 from furnace to termination can be accomplished within the guidelines given.

  • Page 30: Clearances And Accessibility

    PRODUCT DESIGN closed non-direct vent furnace has an adequate sup- PROVIDE 8" MINIMUM CLEARANCE BETWEEN CENTER ROD AND FURNACE CABINET ply of combustion air, vent from a nearby uncontami- TO ALLOW FOR CIRCULATOR BLOWER REMOVAL. nated room or from outdoors. Refer to the Combus- ASSURE FURNACE IS LEVEL FROM ALTERNATE 3/8"...
  • Page 31 PRODUCT DESIGN Corrections must be in accordance with the latest edition of the National Fuel Gas Code NFPA 54/ANSI Z223.1 and/or HEAT OFF SECOND SECOND DELAY CSA B149 Installation Codes. DELAY DELAY If resizing is required on any portion of the venting system, use the appropriate table in Appendix G in the latest edition MODE 2-STAGE...
  • Page 32 PRODUCT DESIGN Consult the instructions packaged with the thermostat and 9.3.1.5 Makeup air requirements for the operation of exhaust fans, kitchen ventilation systems, clothes dryers, and fireplaces shall be considered in dehumidistat for mounting instructions and further precau- determining the adequacy of a space to provide combustion air require- tions.
  • Page 33 PRODUCT DESIGN Chimney or Gas Vent Chimney or Gas Vent NOTE: Each opening must have Ventilation louvers a free area of not less than one (each end of attic) square inch per 1000 BTU of NOTE: The inlet and outlet air the total input rating of all equip- openings must each have a free ment in the enclosure, but not...
  • Page 34 PRODUCT DESIGN NOTE: The single opening must have 9.3.7 Louvers, Grilles, and Screens. a free area of not less than one Chimney or Gas Vent square inch per 3000 BTU of the total input rating of all equip- 9.3.7.1 Louvers and Grilles. The required size of openings for com- ment in the enclosure, but not less than the sum of the areas of all vent bustion, ventilation, and dilution air shall be based on the net free area of...
  • Page 35 PRODUCT DESIGN Upflow or Horizontal units are shipped with the induced Category I Venting (Vertical Venting) draft blower discharging from the top of the furnace ("Top" is (80% Furnaces Only) as viewed for an upflow installation). The induced draft blower can be rotated 90 degrees for Category I venting.

  • Page 36: Masonry Chimneys

    PRODUCT DESIGN Masonry Chimneys Line, terminate with Proper Chimney Termination? listed vent cap (Check 1) (Fix 1) Chimney channel free of solid and Change venting liquid fuel arrangements appliances? (Fix 2) (Check 2) Rebuild crown Crown in good (Fix 3) condition and/or Reline (Check 3)
  • Page 37 PRODUCT DESIGN 10' or Less Check 3 - Chimney Crown Condition. Damage from condensate usually shows up first in the crown. If any of the following trouble signs are present, the condi- 2' Min. 2' Min. 3' Min. tion of the crown is not satisfactory: a) Crown leaning b) Bricks missing Wall or...
  • Page 38 PRODUCT DESIGN Flexible liners should be hung straight or nearly straight. If it • Extremely cold weather is spiraled in the chimney and in good condition, it should • Long vent connectors be rehung. To do this, break the top seal; pull up and cut off •...
  • Page 39 PRODUCT DESIGN Do not spiral excess liner inside of the chimney. Support Fix 4 - Relining. the liner as recommended by the liner manufacturer. Relining options include B vent and flexible liners. Some manufacturers of flexible liners offer an insulation sleeve If the chimney has diagonal offsets, B vent probably cannot designed to be added to the liner before it is installed in the be used.
  • Page 40 PRODUCT DESIGN Drain Trap and Lines (90% Furnaces Only) ALTERNATE FLUE AND ALTERNATE FLUE AND DISCHARGE Bottom COMBUSTION AIR PIPE COMBUSTION AIR PIPE Return In horizontal applications the condensate drain trap is se- LOCATIONS LOCATIONS Duct Connection cured to the furnace side panel, suspending it below the furnace.
  • Page 41 PRODUCT DESIGN Propane Gas and/or High Altitude Installations Do not use commercially available “no hub connectors” other than those shipped with this product. It is the responsibility of the installer to follow the manufac- WARNING turers’ recommendations and to verify that all vent/flue pip- ing and connectors are compatible with furnace flue prod- OSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH MAY OCCUR IF ucts.
  • Page 42 PRODUCT DESIGN As an alternative to PVC pipe, primer, solvent cement, and The following bullets and diagram describe the restrictions fittings, ABS materials which are in compliance with the concerning the appropriate location of vent/flue pipe and com- following specifications may be used. Two or three inch ABS bustion air intake pipe (when applicable) terminations.
  • Page 43 PRODUCT DESIGN provided with the unit. The counterflow rubber coupling al- Canadian Venting Requirements (90% Furnaces Only) lows service removal of air intake piping internal to the fur- In Canada, venting must conform to the requirements of the nace blower compartment. NOTE: Because of probable ma- current CAN/CGA-B149 Installation Code.
  • Page 44 PRODUCT DESIGN Alternate Combustion Air Intake Location (90% Fur- naces Only) WARNING NOTE: Alternate combustion fresh air inlet location on the HE RUBBER ELBOW IS NOT DESIGNED TO SUPPORAT A LOAD. HEN THE right hand panel side of 90% furance models was RUBBER ELBOW IS MOUNTED EXTERNALLY TO THE FURNACE CABINET, discontinued since November 2005).
  • Page 45 PRODUCT DESIGN between the vent pipe and the chimney must be closed with GKS9 a weather-tight, corrosion-resistant flashing. For details con- cerning connection of the vent/flue pipe to the furnace, refer Non-Direct Vent (Single Pipe) (1) (2) to Vent/Flue Pipe and Combustion Air Pipe - Standard Fur- Maximum Allowable Length of Vent/Flue Pipe (ft) nace Connections or Alternate Furnace Connections sec- Pipe...
  • Page 46 PRODUCT DESIGN ACV9, AMV9, GCV9, GMV9, GMV95 UPFLOW Non-Direct Vent (Single Pipe) (1)(2) Maximum Allowable Length of Vent/Flue Pipe (ft) 12 " MINIMUM TO ROOF OR (3)(5) Number of Elbows HIGHEST ANTICIPATED Pipe Unit Input SNOW LEVEL (inch) 45,000 70,000 90,000 115,000 COUNTERFLOW...
  • Page 47 PRODUCT DESIGN or the installation instructions for specific details on termi- WALL nation construction. OUTSIDE INSIDE For details concerning connection of pipes to the furnace, refer to the Vent/Flue Pipe and Combustion Pipe - Stan- dard Furnace Connections or Alternate Furnace Connec- tions section in this manual or the installation instructions.
  • Page 48 PRODUCT DESIGN If the combustion air intake pipe is to be installed above a 1) Elbows and/or tees used in terminations must be included when determining quantity of allowable elbows in the system. finished ceiling or other area where dripping of condensate 2) Number of elbows tabulated are for each (Vent/Flue &...
  • Page 49 PRODUCT DESIGN Vertical pipe terminations should be as shown in the follow- ing figure. Refer to Section IX, Vent/Flue Pipe and Com- 90° bustion Pipe - Termination Locations for details concerning MEDIUM RADIUS ELBOW location restrictions. The penetrations through the roof must be sealed tight with proper flashing such as is used with a plastic plumbing vent.
  • Page 50 PRODUCT DESIGN 2. The vent termination must be located at least 12” above NTAKE ERMINATIONS NSTALLATION OF ground or normally expected snow accumulation levels. TIPLE IRECT URNACES If more than one direct vent furnace is to be installed verti- 3. Do NOT terminate over public walkways. Avoid areas cally through a common roof top, maintain the same mini- where condensate may cause problems such as above mum clearances between the exhaust vent and air intake...
  • Page 51 PRODUCT DESIGN DCVK KITS WARNING S IN GLE ST A GE F UR N A C E M A X IM UM A LLOWA B LE LEN GT H OF VE N T A N D C OM B US T ION A IR P IP E F E ET O NOT OPERATE THE FURNACE WITH THE RAIN CAP REMOVED AS GAS INP UT RATE PIPE...
  • Page 52 PRODUCT DESIGN 1" Maximum Combustion Air Strap (TYP.) (Field Supplied) Vent Vent Vent Flush to 1" maximum "A" 45 Elbow Combustion Air Vent (Field Supplied) Exhaust Dimension "A" is touching or 2" maximum separation. FIGURE 7 FIGURE 9 8. Install the rain cap and the small diameter pipe assem- Concentric Sidewall Vent Kit (0170K00000S) bly in the Y concentric fitting and the large pipe assem- bly.
  • Page 53 PRODUCT DESIGN d. Terminal should be located where it will not be dam- Field-Supplied aged or exposed to foreign objects such as stones, Reducing Couplings, Seal all holes through balls, etc. if required wall with sealant e. Terminal should be located where vent vapors are not objectionable.
  • Page 54 PRODUCT DESIGN • If the drain line is routed through an area which may LEFT SIDE PANEL see temperatures near or below freezing, precau- FRONT COVER tions must be taken to prevent condensate from RUBBER DRAIN PORT ELBOW freezing within the drain line. RED HOSE RUBBER •...
  • Page 55 PRODUCT DESIGN 3. Attach PVC drain line to drain trap outlet with either a 90° elbow or coupling. NOTE: Ensure hoses and tubes maintain a downward slope INDUCED DRAFT BLOWER for proper drainage and that they are not kinked or binding. DRAIN PORT HOSE B Horizontal Installations...
  • Page 56 PRODUCT DESIGN PROPANE GAS CONVERSION CAUTION WARNING O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE INLET GAS SUPPLY PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE OSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH MAY OCCUR IF WITH ALL OTHER HOUSEHOLD GAS FIRED APPLIANCES OPERATING. THE CORRECT CONVERSION KITS ARE NOT INSTALLED.
  • Page 57 PRODUCT DESIGN When sizing a trunk line, be sure to include all appliances 9. Connect the furnace to the building piping by one of which will operate simultaneously when sizing a trunk line. the following methods: The gas piping supplying the furnace must be properly sized –...

  • Page 58: Gas Piping Connections

    PRODUCT DESIGN MANUAL SHUT OFF VALVE GAS VALVE (UPSTREAM FROM ALTERNATE MANUAL MANIFOLD GROUND JOINT BURNERS GAS LINE SHUT OFF VALVE PIPE UNION) LOCATION (UPSTREAM FROM ALTERNATE GROUND JOINT GAS LINE PIPE UNION) LOCATION PLUG IN PLUG IN HEIGHT REQUIRED ALTERNATE ALTERNATE BY LOCAL CODE...
  • Page 59 PRODUCT DESIGN Complete information regarding tank sizing for vaporization, GAS PIPING CHECKS recommended regulator settings, and pipe sizing is avail- Before placing unit in operation, leak test the unit and gas able from most regulator manufacturers and propane gas connections. suppliers.

  • Page 60: Electrical Connections

    PRODUCT DESIGN When installing a propane storage tank, the contractor must consider proper tank sizing, safety, efficiency, ground char- WARNING acteristics and aesthetics. For a residential customer, the size may range from 100-1,000 gallons, depending on house- F THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL hold use.
  • Page 61 PRODUCT DESIGN Use a separate fused branch electrical circuit containing NOTE: Wire routing must not interfere with circulator blower properly sized wire, and fuse or circuit breaker. The fuse or operation, filter removal, or routine maintenance. circuit breaker must be sized in accordance with the maxi- mum overcurrent protection specified on the unit rating plate.
  • Page 62 PRODUCT DESIGN A 40 V.A. transformer and an integrated electronic control OPTIONAL ACCESORIES are built into the furnace to allow use with most cooling equip- ELECTRONIC ment. Consult the wiring diagram, located in the Technical AIR CLEANER Manual or on the blower door for further details of 115 Volt HUMIDIFIER and 24 Volt wiring.
  • Page 63 PRODUCT DESIGN Thermostat Two-Stage Heating Furnace Integrated Control Module Two-Stage Heating Only Dehumidistat Typical Field Wiring - Two-Stage Gas Furnaces [Optional] (24 VAC Control Circuit) Remote Condensing Unit (Two-Stage Cooling) Two-Stage Heating with Two-Stage Cooling Thermostat Single-Stage Heating with Single-Stage Cooling Typical Field Wiring Two-Stage Variable Speed Gas Furnaces (24VAC Control Circuit)
  • Page 64 PRODUCT DESIGN Thermostat Wiring Reference Chart ( ADV8, AMV8, ACV9, AMV9, GMV8, GCV9, GMV9, GMV95 ) Two-Stage Variable Speed Furnace Furnace Circulator Blower Operation Thermostat Connection Connection Options Mode During Call From Thermostat On Two-Stage From Room 24 Volts HOT Integrated Thermostat Control Module...
  • Page 65 PRODUCT DESIGN INGLE TAGE HERMOSTAT PPLICATION 24 Volt Dehumidistat Wiring - Two-Stage Variable Speed Gas Furnaces The optional usage of a dehumidistat allows the furnace’s circulator blower to operate at a slightly lower speed dur- ing a combined thermostat call for cooling and dehumidistat Thermostat Single-Stage Heating with call for dehumidification.
  • Page 66 PRODUCT DESIGN Fossil Fuel Applications All 80% & 90% single-stage and two-stage furnaces ship at The 80% & 90% Single-Stage and Two-Stage furnaces can high speed for cooling and the speeds listed in the Specifi- be used in conjunction with a heat pump in a fossil fuel cation Sheet for heating.
  • Page 67 PRODUCT DESIGN 4 3 2 1 4 3 2 1 Cooling Normal Speed 100% CFM 100% CFM Tap A Cooling 4 3 2 1 4 3 2 1 1 min Cooling Demand + (Plus) Speed Adjust Tap B • Profile B ramps up to full cooling demand airflow by first stepping up to 50% of the full demand for 30 sec- 4 3 2 1 4 3 2 1...
  • Page 68 PRODUCT DESIGN 6. Select the heating speed from the heating speed chart in the Product Data Book applicable to your model for your model. The adjust setting (already established by SECOND SECOND DELAY DELAY the cooling speed selection) determines which set of speeds are available.
  • Page 69 PRODUCT DESIGN CIRCULATING AIR AND FILTERS AMV9, ACV9, GMV9, GCV9, GMV95 DUCTWORK - AIR FLOW Duct systems and register sizes must be properly designed for the C.F.M. and external static pressure rating of the fur- COOLING AIRFLOW REQUIREMENT (CFM) nace. Ductwork should be designed in accordance with the recommended methods of "Air Conditioning Contractors of 1000 1200...
  • Page 70 PRODUCT DESIGN EXAMPLE: AMV9, ACV9, GMV9, GCV9, GMV95 1400 CFM x 144 in Filter Size (in UPFLOW 600 ft./min. (Permanent) COOLING AIRFLOW REQUIREMENT (CFM) 1000 1200 1400 1600 2000 1400 CFM x 144 in 0453__XA 376* Filter Size (in 300 (Disposable) ft./min. 0704__XA 627* 627*...
  • Page 71 PRODUCT DESIGN As an alternative a media air filter or electronic air cleaner ADDITIONAL FILTERING ACCESSORIES can be used as the requested filter. Refer to the following Internal Filter Retention Kit minimum filter requirement charts for determination of the These kits can be used only on 90% furnaces with either minimum filter area to ensure proper unit performance.
  • Page 72 PRODUCT DESIGN NORMAL SEQUENCE OF OPERATION Cooling Mode The normal operational sequence in cooling mode is as Goodman / Amana® Distinctions™ Brand Single-Stage 80% or 90% Furnaces follows: White-Rodgers 50A55 Integrated Ignition Control 1. R and Y thermostat contacts close, initiating a call for cool.
  • Page 73 NORMAL SEQUENCE OF OPERATION WITCH IS SET TO POSITION The normal operational sequence in sequence is as fol- Goodman Two-Stage 80% or 90% Furnaces lows: White-Rodgers 50M56 Integrated Ignition Control • R and W thermostat contacts close, initiating a call OWER for heat.
  • Page 74 PRODUCT DESIGN OOLING The normal operational sequence in cooling mode is as fol- The normal operational sequence in fan only mode is as lows: follows: • • R and Y thermostat contacts close, initiating a call for R and G thermostat contacts close, initiating a call for cool.
  • Page 75 14. R and W1 (or R and W1/W2) thermostat contacts open, NORMAL SEQUENCE OF OPERATION allowing the gas valve to cycle off. Goodman Two-Stage 80% or 90% Furnaces 15. Induced draft blower is de-energized following a fifteen White-Rodgers 50V51 Integrated Ignition Control (15) second post purge.
  • Page 76 PRODUCT DESIGN EHUMIDIFICATION The normal operational sequence in dehumidification The normal operational sequence in fan only mode is as mode is as follows: follows: 1. R and YLO/G or Y/G thermostat contacts close, initiaing 1. R and G thermostat contacts close, initiating a call for a call for cool.
  • Page 77 PRODUCT DESIGN NORMAL SEQUENCE OF OPERATION OOLING The normal operational sequence in cooling mode is as fol- Amana® Bramd Single-Stage lows: 80% or 90% Furnaces 1. R and Y thermostat contacts close, initiating a call for White-Rodgers 50A65 Integrated Ignition Control cool.
  • Page 78 PRODUCT DESIGN NORMAL SEQUENCE OF OPERATION 10. Furnace is now operating on the specified stage called for by the two-stage thermostat. Amana Brand Two-Stage 80% and 90% Furnaces ® 11. Furnace runs, integrated control module monitors safety White-Rodgers 50V61 Integrated Ignition Control circuits continuously.
  • Page 79 PRODUCT DESIGN OOLING EHUMIDIFICATION The normal operational sequence in cooling mode is as fol- The normal operational sequence in dehumidification lows: mode is as follows: 1. R and YLO/G or Y/G thermostat contacts close, initiat- 1. R and YLO/G or Y/G thermostat contacts close, initiaing ing a call for cool.

  • Page 80: System Operation

    SYSTEM OPERATION HEATING - Abnormal Operation 4. Pressure Switch Stuck Open. If, after the induced draft blower is energized, the pressure switch does not close, (Amana® Brand 80% and 90% Single Stage Furnaces within 5 minutes, the control will go into a 1-hour lock- - White Rodgers 50A65 Ignition Control) out.
  • Page 81 SYSTEM OPERATION 4. Pressure Switch Stuck Open. If, after the induced draft HEATING - Abnormal Operation blower is energized, the pressure switch does not close (Amana® Brand 80% & 90% Variable Speed Furnaces - within 5 minutes, the control will go into a 1-hour lock- White Rodgers 50V61 Ignition Control) out.
  • Page 82 4. Pressure Switch Stuck Open. If, after the induced draft blower is energized, the pressure switch does not close (Goodman / Amana® Distinctions™ Brand 80% Furnaces within 5 minutes, the control will go into a 1-hour lock- - White Rodgers 50A55 Ignition Control) out.
  • Page 83 Gas valve closes, extinguishing flame. NORMAL SEQUENCE OF OPERATION • Induced draft blower is de-energized following a fif- Goodman 2-Stage Variable Speed teen second post purge. Humidifier terminals are de- Integrated Ignition Control energized. Refer to Timing Charts for sequencing.
  • Page 84 SYSTEM OPERATION ONSTANT NOTE: An interlock switch prevents furnace operation if the • R and G thermostat contacts close, initiating a call blower door is not in place. Keep the blower access doors for fan. in place except for inspection and maintenance. •...
  • Page 85 4. Pressure Switch Stuck Open. If, after the induced HEATING - Abnormal Operation draft blower is energized, the pressure switch does not (Goodman 80% & 90% Variable Speed Furnaces - White close within 5 minutes, the control will go into a 1-hour Rodgers 50V51 Ignition Control) lockout.
  • Page 86 SYSTEM OPERATION AMH8, AMS8, ADS8, DDS8, DMS8, DHS8, ROUBLESHOOTING HART GME8, GMH8, GMS8, GDS8, GHS8 Associated Symptoms of Abnormal Fault Description(s) Possible Causes Corrective Action Cautions and Notes Operation LED Code • Assure 115 and 24 volt • Furnace fails to •...
  • Page 87 SYSTEM OPERATION AMH8, AMS8, ADS8, DDS8, DMS8, DHS8, ROUBLESHOOTING HART GME8, GMH8, GMS8, GDH8, GDS8, GHS8 Associated Fault Symptoms of Abnormal Possible Causes Corrective Action Cautions and Notes Description(s) Operation Code (2)(5) • Check filters and • See Product • Circulator blower runs •...
  • Page 88 SYSTEM OPERATION AMS9, ACS9, DMS9, DCS9, GMS9, ROUBLESHOOTING HART GCS9, GKS9, AMS95, GMS95 lt Description(s) Associated Fault Symptoms of Abnormal Cautions Possible Causes Corrective Action Description(s) Operation LED Code and Notes • Assure 115 and 24 volt • Turn power OFF •...
  • Page 89 SYSTEM OPERATION AMS9, ACS9, DMS9, DCS9, GMS9, ROUBLESHOOTING HART GCS9, GKS9, AMS95, GMS95 Associated Fault Symptoms of Abnormal Possible Causes Corrective Action Cautions and Notes Description(s) Operation LED Code • Check primary/auxiliary limit. • Circulator blower runs • Primary or •...
  • Page 90 SYSTEM OPERATION ROUBLESHOOTING HART ADV8, AMV8, ACV9, AMV9, GMV8, GCV9, GMV9 Associated Fault Symptoms of Abnormal Corrective Action Cautions and Notes Possible Causes Operation LED Code Description(s) • Furnace fails to operate. NONE • No 115 volt power • Manual disconnect switch •...
  • Page 91 SYSTEM OPERATION ROUBLESHOOTING HART ADV8, AMV8, ACV9, AMV9, GMV8, GCV9, GMV9 Associated Symptoms of Abnormal Fault Corrective Action Cautions and Notes Possible Causes Operation Description(s) LED Code • Check filters and ductwork • Turn power OFF • Insufficient conditioned • Circulator blower runs •...

  • Page 92: Polarization And Phasing

    POLARIZATION AND PHASING As more and more electronic's are introduced to the Heat- INCOMING POWER METER READS METER READS ing Trade, Polarization of incoming power and phasing of 120 VOLTS 0 VOLTS primary to secondary voltage on transformers becomes more important. Polarization has been apparent in the Appliance industry VOLT / OHM VOLT / OHM...

  • Page 93: Maintenance

    MAINTENANCE WARNING HIGH VOLTAGE ISCONNECT POWER BEFORE SERVICING OR INSTALLING THIS UNIT. ULTIPLE POWER SOURCES MAY BE PRESENT. AILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. CAUTION Maintenance Improper filter maintenance is the most common cause of F YOU MUST HANDLE THE ITNITOR, HANDLE WITH CARE.
  • Page 94 MAINTENANCE CONDENSATE DRAINAGE SYSTEM (QUALIFIED BURNERS SERVICER ONLY) The drain tubes, standpipe, and field supplied drain line must WARNING be checked annually and cleaned as often as necessary to ensure proper condensate drainage. HIGH VOLTAGE LECTRICAL COMPONENTS ARE CONTAINED IN BOTH FLUE PASSAGES (QUALIFIED SERVICER ONLY) COMPARTMENTS.
  • Page 95 MAINTENANCE HEATING PERFORMANCE TEST CAUTION Before attempting to diagnose an operating fault, run a heat- ing performance test and apply the results to the Service LWAYS CONNECT A MONOMETER TO THE OUTLET TAP AT THE GAS Problem Analysis Guide. VALVE BEFORE ADJUSTING THE PRESSURE REGULATOR. N NO CASE To conduct a heating performance test, the BTU input to the SHOULD THE FINAL MANIFOLD PRESSURE VARY MORE THAN PLUS OR...

  • Page 96: Servicing

    SERVICING CUBIC FEET GAS RATE -- CUBIC FEET PER HOUR Size of Test Dial Size of Test Dial Seconds for Seconds for cu/ft cu/ft cu/ft cu/ft cu/ft cu/ft cu/ft cu/ft cu/ft cu/ft Revolution Revolution 1800 1636 1500 1385 1286 1200 1125 1059 1000...
  • Page 97 SERVICING Service Problem No Heat Unsatisfactory Heat POSSIBLE CAUSE Test Method DOTS IN ANALYSIS Remedy GUIDE INDICATE "POSSIBLE CAUSE" • Power Failure Test Voltage • Blown Fuse Test Voltage • Loose Connection Check Wiring • Shorted or Broken Wires Check Wiring S-3A •...
  • Page 98 SERVICING SERVICE NUMBERS CHECKING VOLTAGE ......................99 CHECKING WIRING ......................... 99 CHECKING THERMOSTAT, WIRING, AND ANTICIPATOR ............ 99 S-3A Thermostat and Wiring ......................99 S-3B Heating Anticipator........................99 CHECKING TRANSFORMER AND CONTROL CIRCUIT ............ 100 S-15 CHECKING CAPACITOR ....................... 101 S-15A Resistance Check ........................

  • Page 99: Checking Voltage

    SERVICING S-1 CHECKING VOLTAGE 3. If any wires must be replaced, replace with AWM, 105°C. 2/64 thick insulation of the same gauge or its equivalent. CHECKING THERMOSTAT, WIRING WARNING AND ANTICIPATOR HIGH VOLTAGE S-3A THERMOSTAT AND WIRING ISCONNECT POWER BEFORE SERVICING OR CHANGING ANY ELECTRICAL WIRING.

  • Page 100: Checking Transformer And Control Circuit

    SERVICING The heating anticipator setting for furnaces covered in this WARNING manual is 0.70 Amps. If the anticipator current draw is unknown, then a current INE VOLTAGE NOW PRESENT amp draw should be measured to determine the anticipator setting. Use an amprobe as shown in the following drawing. 3.

  • Page 101: Checking Capacitor

    SERVICING S-15 CHECKING CAPACITOR Good Condition - indicator swings to zero and slowly returns toward infinity. The direct drive motors are of the permanent split capacitor Shorted - indicator swings to zero and stops there design. A run capacitor is wired across the auxiliary and a - replace.
  • Page 102 SERVICING 3. High voltage is present at the motor all the time. Motor operation is controlled through the low voltage motor in- terface board that provides an output voltage to the mo- tor end bell. This voltage output determines the CFM, which the motor wil provide.
  • Page 103 SERVICING CAUTION WARNING INE VOLTAGE NOW PRESENT OLTAGE ON CONTROL PINS WILL DESTROY MOTOR Do not apply 24 volts to terminals "Out +" or "Out -". Check for line voltage on terminals 4 and 5. Verify terminal 3 is ground. Terminals 1 and 2 are jumpered in the harness for Make sure connector is fully seated.
  • Page 104 SERVICING 6. The control module is now completely detached from the 10. Plug the 16-pin control plug into the motor. The plug is motor. Verify with a standard ohmmeter that the resis- keyed. Make sure the connector is properly seated and tance from each motor lead (in the motor plug just re- latched.
  • Page 105 SERVICING...
  • Page 106 SERVICING...
  • Page 107 SERVICING VARIABLE SPEED (ECM) MOTOR TEST (Low Stage Heat Call) THERMOSTAT HEAT INPUT(S): R, W1 ECM Motor Not Coming On First, low voltage readings are measured with the In order for the heating fan speed to operate, the inte- 16-pin wire harness disconnected from the motor. A grated control board has to receive a low-stage (W1) call diagram of the harness and pin locations is pro- from the thermostat.
  • Page 108 SERVICING VARIABLE SPEED (ECM) MOTOR TEST (High Stage Heat Call) THERMOSTAT HEAT INPUT(S): R, W1, W2 ECM Motor Not Coming On First, low voltage readings are measured with the 16-pin wire In order for the heating fan speed to operate, the integrated harness disconnected from the motor.
  • Page 109 SERVICING VARIABLE SPEED (ECM) MOTOR TEST (Fan Only Call) THERMOSTAT CONTINUOUS FAN INPUT(S): ECM Motor Not Coming On R, G In order for the continous fan speed to operate, the inte- grated control board has to receive (G) signal from the ther- First, low voltage readings are measured with the 16-pin wire mostat.
  • Page 110 SERVICING VARIABLE SPEED (ECM) MOTOR TEST (Cooling Low-Stage Call) THERMOSTAT LOW INPUT(S): R, Y1, G ECM Motor Not Coming On In order for the cooling fan speed to operate, the integrated First, low voltage readings are measured with the 16-pin wire control board has to receive (Y1) signal from the thermostat.
  • Page 111 SERVICING VARIABLE SPEED (ECM) MOTOR TEST (Cooling Two-Stage Call) THERMOSTAT HEAT INPUT(S): R, Y1, Y2, G ECM Motor Not Coming On First, low voltage readings are measured with the 16-pin In order for the cooling fan speed to operate, the integrated wire harness disconnected from the motor.
  • Page 112 SERVICING VARIABLE SPEED (ECM) MOTOR TEST (Heat Pump Cooling Single-Stage Call) THERMOSTAT HEAT INPUT(S): R, Y1, O, G ECM Motor Not Coming On First, low voltage readings are measured with the 16-pin wire In order for the cooling fan speed to operate with a heat harness disconnected from the motor.

  • Page 113: Checking Duct Static

    SERVICING S-200 CHECKING DUCT STATIC S-201 CHECKING TEMPERATURE RISE The maximum and minimum allowable external static pres- The more air (CFM) being delivered through a given fur- sures are found in the specification section. These tables nace, the less the rise will be; so the less air (CFM) being also show the amount of air being delivered at a given static delivered, the greater the rise.

  • Page 114: Checking Primary Limit Control

    SERVICING S-300 CHECKING PRIMARY LIMIT CONTROL PRIMARY LIMIT CONTROL All 80% and 90% furnaces use a nonadjustable, automatic reset, bi-metal type limit control. Refer to the following draw- ing for the location of the primary limit. Location of Primary Limit Primary Limit Control Location (90% Upflow Furnace Shown, Counterflow Similar) The following drawing illustrates the style of limit switches...

  • Page 115: Checking Auxiliary Limit Control

    SERVICING VOLT / OHM METER BLOWER HOUSING Testing Primary Limit Control AUXILIARY LIMIT CONTROL (80% Furnaces) Auxiliary Limit Control Location (All 80% Single-Stage Furnaces) All 90% single-stage upflow furnaces use one auxiliary limit switch for control of high temperatures within the furnace or duct work.
  • Page 116 SERVICING WARNING HIGH VOLTAGE AUXILIARY LIMIT CONTROL ISCONNECT POWER BEFORE SERVICING OR INSTALLING THIS UNIT. ULTIPLE POWER SOURCES MAY BE PRESENT. AILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. BLOWER HOUSING 1. Remove blower compartment door to gain access to the auxiliary limit control which is located on the front of the blower housing on all 80% single-stage furnaces AUXILIARY LIMIT...

  • Page 117: Checking Flame Rollout Control

    SERVICING To aid in identifying these controls, color coded labels are On two-stage 80% and 90% models the ignition control the attached to the back of the controls. Refer to the Auxiliary diagnostic light will flash (4) four times indicating a trip of the Limit Charts in furnace Technical Manual for color codes rollout switch.

  • Page 118: Test Induced Draft Motor

    SERVICING S-305 CHECKING MAIN BURNERS S-303 INDUCED DRAFT BLOWER MOTOR The main burners are used to provide complete combus- tion of various fuels in a limited space, and transfer this WARNING heat of the burning process to the heat exchanger. HIGH VOLTAGE Proper ignition, combustion, and extinction are primarily ISCONNECT...

  • Page 119: Checking Gas Pressure

    SERVICING Gas Valve On/Off Selector Switch INLET OUTLET STREAM B Inlet Pressure Tap Outlet (Manifold) Pressure Regulator (Side of Valve) Pressure Tap Adjustment (Under Cap Screw) The length of Dimension "A" determines the angle of Gas White-Rodgers Model 36F22 Stream "B". DENT OR Gas Valve BURR...
  • Page 120 SERVICING Gas Manifold Pressure Measurement and Adjust- GAS LINE ment (80% & 90% Single-Stage Furnaces) GAS SHUTOFF VALVE CAUTION GAS LINE TO FURNACE O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE GAS MANIFOLD PRESSURE MUST BE AS SPECIFIED ON THE UNIT OPEN TO RATING PLATE.
  • Page 121 SERVICING 2. Connect a calibrated water manometer (or appropriate WARNING gas pressure gauge) at the gas valve outlet pressure tap. Refer to previous Measuring Manifold Gas Pres- INE VOLTAGE NOW PRESENT sure figure for proper connection. 3. Turn ON the gas and electrical power supply and oper- WARNING ate the furnace.

  • Page 122: Checking Hot Surface Ignitor

    1. After turning off gas to furnace at the manual gas shutoff S-308 CHECKING HOT SURFACE IGNITOR valve external to the furnace, remove burner compart- Goodman® and Amana® Distinctions Brand 80% and 90% ™ ment door to gain access to the gas valve.

  • Page 123: Checking For Flashback

    SERVICING Amana® Brand 80% and 90% furnaces: Should read approximately 1 to 3 amps. NOTE: Due to the "Adap- tive Igniter Modulation Routine" of the integrated igni- Induced Draft Blower tion control, the current reading will fluctuate when read- Pressure Switch ing with a standard amp meter.

  • Page 124: High Altitude Applicaton (Usa)

    SERVICING S-311 HIGH ALTITUDE APPLICATION (USA) This section discusses various integrated ignition boards used on models listed in this manual. You will be guided When these furnaces are installed at high altitude, the ap- though some common diagnostic procedures. propriate High Altitude Orifice or Pressure Switch Kit must be applied.
  • Page 125 SERVICING 1. Check for 120 volts from Line 1 (Hot) to Line 2 (Neutral) Amana brand 80% and 90% Single-Stage (ADS8, ® at the ignition control. No voltage, check the door switch AMS8, ACS9, AMS9, AMS95) connections and wire harness for continuity. NOTE: The models above use White-Rodgers 50A65-289 2.
  • Page 126 D S 1 D S 2 S T4 TWIN Y W R Goodman and Amana® Distinctions™ Brand 80% and ® 90% Single-Stage (GDS8, GHS8, GMS8, GCS9, GMS9, GMS95, DDS8, DHS8, DMS8, DCS9, DMS9) GDS8, GHS8, GMS8, GCS9, GMS9, GMS95, DDS8,...
  • Page 127 5. After the ignitor warmup time, begin checking for 24 volts to the gas valve. Voltage will be present for seven sec- Goodman 80% and 90% Two-Stage ® and Amana® brand onds only if proof of flame has been established.

  • Page 128: Checking Flame Sensor

    SERVICING 6. If proof of flame was established voltage will be provided IGNITOR FLAME SENSOR to the air circulation blower following the heat on delay 3/16" + 1/16" 23/64" + 1/64" period. DISTANCE OF DISTANCE OF IGNITOR TO BURNER SENSOR TO BURNER a.

  • Page 129: Accessories Wiring Diagrams

    ACCESSORY WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. ALL FUEL SYSTEM CONTROL BOARD - AFE1860A 24VAC POWER SUPPLY P1-8 +VDC...
  • Page 130 ACCESSORY WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. Y88FA-3 FLASH3 = BOTH T'Stat Connections FOR SINGLE STAGE OPERATION: Remote LED (Optional) T'Stat Connections...
  • Page 131 ACCESSORY WIRING DIAGRAMS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. GREEN DE-HUMIDISTAT WHITE DEHUM INTEGRATED IGNITION CONTROL DE-HUMIDISTAT - DEHUM1 This wiring diagram is for reference only.

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