GDH8 Technical Manual
Contents
1. WARNING DISCONNECTPOWERBEFORE INTEGRATED SERVICING WIRINGTOUNITMUSTBE CONTROLMODULE PROPERLYPOLARIZEDANDGROUNDED XFMR S Lap XE GND 8 24VAC 0 C2 GAS HUMIDIFIER 8 VALVE MVH 12 41 e peu 2 2277 IDBLOWER D e e AUXILIARY r PRESSURE 4 LIMITCONTROLS JC C G Y 059 PS 10 AUTO ms MN o TG 2516 IODE m rs 1 PSO 4 150SEC 1006 my TO wow 51 MICRO CS WH a W D OOO E 27 01010 Fuse E 8 AUTORESET MoA X158 z gt PRIMARY 98 m RO2 11 LIMIT BR A AUXILIARY CONTROL LIMITS INTEGRATED Rel e CONTROLMODULE MANUALRESETROLLOUT LIMITCONTROL S SINGLECONTROLONSOMEMODELS FS XFMR 3 24 c Qed 40VA BL BR TRANSFORMER RD 9 LON E 2 XFMR H 115VAC XFMR N E T FLAMESENSOR 5 2 8 2 E FP x HOTSURFACE IGNITER 1 XFMR H LINE H EAC H IGN Sur IGNN T PARK 9 z z a 8 5805 8 E 2 89 55 E a BK 27 m 5 5 IND NM IND N 5 o 4 4 2 24V g m o aS 5115 9 115 m BLWR CIR N m XFMR 29 3g m S SA WH o 5 BK 3 __ ELECTRONIC ___ GR 15PINPLUG AIRCLEANER O2. ASIY X 80 X N39 LNdLNO NLA LAdLNO NLA 1 JSIH W49 009 LYVHO 3Sld S LNdLNO NL 06 OV 0S 09 OZ 08 06 001 3514 15 WIRING DIAGRAM 16 o rI o z o o z 5 gt tc o Lu a a gt lt LE z 2 o a lt 5 o gt x 5 WARNING GDH8 UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH
3. 5 WOO uOSN3S 5925 LL 3AV 13 oco e IVISOWNH3HL 054 OH sal W no1 dd 0 05 Le YIN EHE OV 995 EP 1 2 y 112 RET YO LW uL 5 WE wero uOSSdudNOO NAN eo NaN ES T a WA vc At DVA 041 10H p DI d o zo 28670 NO 595 HOL MS 2258 Lo 9 gt u e 5 000 2 2 3 YD c 5 gt NP 3 SREY nou D 17 Wiring is subject to change Always refer to the wiring diagram on the unit for the most up to date wiring
4. os fol nf os cre es 0603A B pm nom n m m IR asm co se pm po pom em 0804B B a pm pe pnm m pom n ral o e GDH8 Med 0 1 880 1 838 40 1 794 41 1 734 43 11 677 44 1005C B Med Lo 3 5 1 659 1 630 45 1 587 47 1 537 48 1 492 50 gt feel el NOTES CFM in chart is without filter s Filters do not ship with this furnace but must be provided by the installer furnaces ship as high speed cooling Installer must adjust blower cooling speed as needed For most jobs about 400 per ton when cooling is desirable INSTALLATION IS TO BE ADJUSTED TO OBTAIN TEMPERATURE RISE WITHIN THE RANGE SPECIFIED ON THE RATING PLATE The chart is for information only For satisfactory operation external static pressure must not exceed values shown on the rating plate The shaded area indicates ranges in excess of maximum static pressure allowed when heating The dashed areas indicate a temperature rise not recommended for this model At higher altitudes a properly de rated unit will have approximately the same temperature rise at a particular CFM while ESP at the CFM will be lower 14 BLOWER PERFORMANCE SPECIFICATIONS 091 0001 x HH NLE LNdLNO 051 001 06 08 OZ 09 0S 07
5. CRT TECHNICAL MANUAL GDH8 33 3 8 80 Gas Furnace 80 AFUE 2 Stage Convertible Multi Speed Dedicated Downflow e Refer to Service Manual RS6610004 for installation operation and troubleshooting information All safety information must be followed as provided in the Service Manual e Refer to the appropriate Parts Catalog for part number information e Model numbers listed on page Liste 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 RT6621022r2 due to improper service procedures or services performed by an unqualified March 2013 person Copyright O 2011 2013 Goodman Manufacturing Company L P PRODUCT IDENTIFICATION The model and manufacturing number are used for positive identification of component parts used in manufacturing Please use these numbers when requesting service or parts information AIRFLOW DIRECTION D Dedicated Downflow HIGH VOLTAGE B 17 1 2 21 100 100 000 Btuh A WARNING 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 A WARNING Goodman will not be responsible for any injury or property damage arising from improper service or service procedures If you install or perfor
6. 0603A A uem om m o m Des pw wmm m p Dm 0804B A 50 2405 2361 36 2250 2161 2 037 GDH8 1 880 45 1838 46 11 794 47 1734 49 1 677 51 1005C A Med Lo 1659 1630 52 1 587 54 1537 55 1 492 57 NOTES CFM in chart is without filter s Filters do not ship with this furnace but must be provided by the installer furnaces ship as high speed cooling Installer must adjust blower cooling speed as needed For most jobs about 400 ton when cooling is desirable INSTALLATION IS TO BE ADJUSTED TO OBTAIN TEMPERATURE RISE WITHIN THE RANGE SPECIFIED ON THE RATING PLATE The chart is for information only For satisfactory operation external static pressure must not exceed values shown on the rating plate The shaded area indicates ranges in excess of maximum static pressure allowed when heating The dashed areas indicate temperature rise not recommended for this model At higher altitudes properly de rated unit will have approximately the same temperature rise at a particular CFM while ESP at the CFM will be lower 13 BLOWER PERFORMANCE SPECIFICATIONS GDH8 B BLOWER PERFORMANCE CFM amp Temperature Rise vs External Static Pressure Tons AC EXTERNAL STATIC PRESSURE Inches Water Column Speed ar Y ESP RISE RISE RISE RISE RISE se m m m on m 0403A B
7. A WARNING personal injury E man for use with this unit Serious do not store combustible materials or use gasoline or property damage personal injury reduced unit perfor other flammable liquids or vapors in the vicinity of this mance and or hazardous conditions may result from the appliance use of such non approved devices PRODUCT DESIGN General Operation The GDH8 furnaces are equipped with an electronic ignition device used to light the burners and an induced draft blower to exhaust combustion products An interlock switch prevents furnace operation if the inner blower door is place Keep the blower access door in place except for inspection and maintenance See illustra tion on page 5 This furnace is also equipped with a self diagnosing elec tronic control module In the event a furnace component is not operating properly the control module LED will flash on and off in a factory programmed sequence depending on the problem encountered This light can be viewed through the observation window in the blower access door Refer to the Troubleshooting Chartfor further explanation of the LED codes and Abnormal Operation Integrated Ignition Control section in the Service Instructions for an explanation of the possible problem The rated heating capacity of the furnace should be greater than or equal to the total heat loss of the area to be heated The total heat loss should be calculated by an
8. Specification Sheets Filters Filters are required with this furnace and must be provided by the installer The filters used must comply with UL900 or CAN ULCS 1 11 standards Installing this furnace without filters will void the unit warranty MINIMUM FILTER SIZES for DISPOSABLE FILTERS FURNACE INPUT 40M 60M 80M 100M DISPOSABLE NOMINAL 300 F M FACE VELOCITY PRODUCT DESIGN Dual aver Configuration amp Operation 10 Dual aver This furnace is capable of the following heating modes e Single Stage Factory Setting Modified Two Stage 7 Fixed 5 Min Low Stage 7 Auto Time 1 12 Min Low Stage To change from the factor single stage operation adjust the dipswitches on the ignition control as follows HEAT OFF DELAY 1 STAGE SSTAGE T SNR MINUTES Switches for White Rodgers board shown above With other venders order of switches may vary but functionality stays the same Note This furnace is designed to be used with a single stage thermostat Start Stat Call for Heat Call for Heat Safety Circuit Check Safety Circuit Check Start Furnace Start Furnace in Low Stage in Low Stage Low Heat Blower Low Heat Blower Delay Time 5 Min Delay Time 1 12 Min Gas Valve Switch Gas Valve Switch to 2nd Stage to 2nd Stage Blower Switch to Blower Switch to Hi Heat Operation Hi Heat Operation T Stat Satisfied T Stat Satisfied FURNACE S
9. a tabu lar listing of appropriate manufacturer s kits for propane gas and or high altitude installations The indicated kits must be used to insure safe and proper furnace operation All conversions must be performed by a qualified installer or service agency PRODUCT DIMENSIONS GDH8 4 28 19 5 8 High Voltage Electrical Ec Low Voltage Electrical Gas Inlet NON COMBUSTIBLE GDH80403A 2 121 2 SBT14 GDH80804B 17 1 2 SBT17 GDH81005C 19 1 2 SBT21 All dimensions are in inches PRODUCT DESIGN GDH8 A PRESSURE SWITCH PART E Negative pressure readings are in inches of water column in w c PRIMARY LIMIT Part Number 0130F00035 0130F00036 180 1 1 Open Setting F GDH80804B A ROLLOUT LIMIT SWITCHES AUXILIARY LIMIT SWITCHES Part Number 10123529 Part Number 0130F00038 Open Setting F Open Setting F GDH80403A GDH80403A PRODUCT DESIGN GDH8 B PRESSURE SWITCH PART Negative pressure readings are in inches of water column in w c PRIMARY LIMIT ROLLOUT LIMIT SWITCHES AUXILIARY LIMIT SWITCHES Part Number Part Number 0130F00038 Open Setting F Open Setting F GDH80403A GDH80403A GDH80603A CIDHODRUSB GDH80804B GDH81005C PRODUCT DESIGN Coil Matches A large ar
10. 49 1 and CAN CSA B149 2 latest editions and amendments NOTE The vertical height of the Category venting system must be at least as great as the horizontal length of the venting system Accessibility Clearances Minimum Unobstructed front clearance of 24 for servicing is rec ommended MINIMUM CLEARANCE TO COMBUSTIBLE MATERIALS INCHES Vent Sides Rear Front Top os poo e p tf 24 clearance for serviceability recommended Single Wall Vent SW to be used only as a connector Refer to the venting tables outlined in the Installation Manual for additional venting requirements Note In all cases accessibility clearance shall take prece dence over clearances from the enclosure where accessi bility clearances are greater All dimensions are given in inches High Altitude Derate IMPORTANT NOTE The furnace as shipped requires no change to run between 0 4500 feet Do not attempt to increase the firing rate by changing orifices or increasing the manifold pressure below 4500 feet This can cause poor combustion and equipment failure High altitude installations above 4500 feet may require both a pressure switch and an orifice change These changes are necessary to compensate for the natural reduction in the density of both the gas fuel and the combustion air at higher altitude For installations above 4500 feet please refer to your dis tributor for required kit s Contact the distributor for
11. 60 000 80 000 100 000 Output US High Fire 32 000 48 000 64 000 80 000 AFUE 80 80 80 80 Rated External Static w c 20 50 20 50 20 50 20 50 Pressure Switch Trip Point w c O 80 Blower Wheel D x W X6 X8 10 X 10 Blower Horsepower 1 3 Blower Speeds _ Power Supply 115 60 1 115 60 1 115 60 1 115 60 1 Minimum Circuit Ampacity MCA 85 8 5 12 9 12 9 Maximum Overcurrent Device 15 15 15 15 Transformer VA 40 40 40 Heat Anticipator Amps 0 7 0 7 0 7 Primary Limit Setting F 180 Auxiliary Limit Setting F 120 120 Rollout Limit Setting F 300 Gas Supply Pressure Natural Propane w c 7 11 7 11 7 11 7111 Manifold Pressure Natural Propane High Stage w c 3 5 10 3 5 10 3 5 10 3 5 10 Orifice Size Natural Propane 45 55 45 55 45 55 45 55 Number of Burners 2 3 4 5 Vent Connector Diameter inches 4 4 4 4 Shipping Weight Ibs 88 92 106 114 1 DOE AFUE based upon Isolated Combustion System ICS 2 Vent and combustion air diameters may vary depending upon vent length Refer to the latest editions of the National Fuel Gas Code NFPA 54 ANSI 7223 1 in the USA and the Canada National Standard of Canada CAN CSA B1 49 1 and CAN CSA B142 2 in Ca 3 Minimum Circuit Ampacity 1 25 x Circulator Blower Amps ID Blower amps Wire size should be determined in accordance with National Electrical Codes Extensive wire runs will require larger w
12. 7AMPS COLORCODES PKPINK 2 MANUFACTURER SSPECIFIEDREPLACEMENTPART SMUSTBEUSEDWHENSERVICING YL YELLOW BRBROWN 3 IFANYOFTHEORIGINALWIREASSUPPLIEDWITHTHEFURNACEMUSTBE OR ORANGE WH WHITE REPLACED ITMUSTBEREPLACEDWITHWIRINGMATE RIALHAVINGATEMPERATURE PUPURPLE BLBLUE RATINGOFATLEAST105 C USECOPPERCONDUCTORSONLY GRGREEN GYGHAY 4 BLOWERSPEEDSSHOULDBEADJUSTEDBYINSTALLERTOMATCHTHEINSTALLATION REQUIREMENTSSOASTOPROVIDETHECORRECTHEATINGTEMPERATURERISEANDTHE BKBLACK RD RED CORRECTCOOLINGCFM SEESPECSHEETFORAIRFLOWCHART 5 UNITMUSTBEPERMANENTLYGROUNDEDANDCONFORMTON E C ANDLOCALCODES 6 TORECALLTHELASTSFAULTS MOSTRECENTTOLEASTRECENT DEPRESSSWITCH 0140F00662 REV A FORMORETHAN2SECONDSWHILEINSTANDBY NOTHERMOSTATINPUTS Wiring is subject to change Always refer to the wiring diagram on the unit for the most up to date wiring SCHEMATICS peorues Bulag pun y 10 eyeudoudde se si JON 9 9419 9 10 SI 905 siu JOHINOO NOLLINOI GALVYDALNI 682 9S8INOS HM S3OVNuf TAGOW X OLLVIN3HOS WOIdAL 2o zea 3ATVA SVO ou 39715 43 H 4 52 iwi a
13. NSOMEMODELS Bc BLOWERCOMPARTMENT LINE H LINE N 24VAC DOOR i DOORSWITCH SWITCH ise SWITCHLOCATEDINBLOWER 96 COMPARTMENTONSOMEMODELS m h i i 5S L WARNING i in n 2 DISCONNECTPOWER zz YL PRESSURE BEFORESERVICING WIRINGTOUNIT RD MUSTBE PROPERLY POLARIZED Hop we ANDGROUNDED BK GND N BR BL OVERCURRENTPROTECTIONDEVICE WH BK PM JUNCTION E HOT M e Wy BOX SURFACE 2STAGE 4 LINEN IGNITER GASVALVE R GND HONEYWELL Pu INDUCEDDRAFT BLOWER TO115VAC 1 60HZ PI 5 POWERSUPPLYWITH OVERCURRENTPROTECTION ROLLOUTLIMITS DEVICE SINGLECONTROLONSOMEMODELS J0 STEADYON NORMALOPERATION OFF CONTROLFAILURE LOWVOLTAGEQV EQUIPMENTGND 77 1 1FLASH SYSTEMLOCKOUT RETRIES RECYCLESEXCEEDED LOWVOLTAGEFIELD FIELDGND 2FLASHES PRESSURESWITCHSTUCKCLOSED HIVOLTAGE 115V 2 3FLASHES PRESSURESWITCHSTUCKOPEN FIEEDSPLIGE c 9 3 HIVOLTAGEFIELD 4FLASHES OPENHIGHLIMIT SWITCH TEMP JUNCTION 57 5 SFLASHES FLAMESENSEWITHOUTGASVALVE IGNITER 6FLASHES OPENROLLOUTOROPENFUSE TERMINAL O 7FLASHES LOWFLAMESIGNAL INTERNALTO SWITCH PRESS oo 8FLASHES CHECKIGNITERORIMPROPERGROUND INTEGRATEDCONTROL OVERCURRENT PLUGCONNECTION CF PROTDEVICE RAPIDFLASHES REVERSED115VACPOLARITY VERIFYGND NOTES 1 SETHEATANTICIPATORONROOMTHERMOSTATATO
14. PECIFICATIONS GDH8 A MODEL GDH80403A A GDH80603A GDH80804B GDH81005C A Btuh Input US High Fire Output US High Fire AFUE Rated Extemal Static w c pa Rise F Blower Wheel D W 10 X6 10 X6 10 X8 Blower Horsepower Blower Speeds eesosa oo Power Supply 115 60 1 115 60 1 115 60 1 115 60 1 Minimum Circuit Ampacity MCA 85 85 129 129 Maximum Overcurrent Device 15 15 15 Transformer VA 40 40 40 Heat Anticipator Amps 0 7 0 7 0 7 Primary Limit Setting F 220 180 180 Auxiliary Limit Setting F 120 Rollout Limit Setting 300 Gas Supply Pressure Natural Propane w c 7 11 Manifold Pressure Natural Propane High Stage w c 3 5 10 Orifice Size Natural Propane 43 55 Number of Burners 3 Vent Connector Diameter inches 9 Shipping Weight Ibs 1 Natural Gas BTU h For altitudes above 2 000 reduce input rating 496 for each 1 000 above sea level 2 DOE AFUE based upon Isolated Combustion System ICS 3 Vent and combustion air diameters may vary depending upon vent length Refer to the latest editions of the National Fuel Gas Code 54 ANSI 7223 1 in the USA and the Canada National Standard of Canada CAN CSA B1 49 1 and CAN CSA B142 2 in Ca 4 Minimum Circuit Ampacity 1 25 x Circulator Blower Amps ID Blower amps Wire size should be determined in accordance with National Electrical Codes Extens ive wire runs will requi
15. approved method or in accordance with ASHRAE Guide or Manual J Load Calculations published by the Air Conditioning Con tractors of America Obtain from American National Standards Institute 1430 Broadway New York NY 10018 Location Considerations furnace should be as centralized as is practical with respect to the air distribution system e Donotinstall the furnace directly on carpeting tile or combustible material other than wood flooring When installed in a residential garage the furnace must be positioned so the burners and ignition source are located not less than 18 inches 457 mm above the floor and protected from physical damage by ve hicles Notes To PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION THIS FURNACE MUST BE CATEGORY vENTED Do NOT VENT USING Catecory VENTING Category Venting is venting at a non positive pressure furnace vented as Category is considered a fan assisted appliance and the vent system does not have to be gas tight NOTE Single stage gas furnaces with induced draft blowers draw products of combustion through a heat ex changer allowing in some instances common venting with natural draft appliances i e water heaters All installations must be vented in accordance with National Fuel Gas Code NFPA 54 ANSI Z223 1 latest edition In Canada the fur naces must be vented in accordance with the National Stan dard of Canada CAN CSA B1
16. ire sizes 4 Maximum Overcurrent Protection Device refers to maximum recommended fuse or circuit breaker size May use fuses or HACR type circuit breakers of the same size as noted Notes All fumaces are manufactured for use on 115 VAC 60 Hz single phase electrical supply Gas Service Connection Important Size fuses and wires properly and make electrical connections in accordance with the National Electrical Code and or all existing local codes NOTES These furnaces manufactured for natural gas operation Optional Kits are available for conversion to propane gas operation The total heat loss from the structure as expressed in TOTAL BTU HR must be calculated by the manufactures method in accordance with the A S H R A E GUIDE or MANUAL J LOAD CALCULATIONS published by the AIR CONDITIONING CONTRACTORS OF AMERICA The total heat loss calculated should be equal to or less than the heating capacity Output based on D O E test procedures steady state efficiency times output Unit specifications are subject to change without notice ALWAYS refer to the unit s serial plate for the most up to date general and electrical information 12 BLOWER PERFORMANCE SPECIFICATIONS GDHe A BLOWER PERFORMANCE CFM amp Temperature Rise vs External Static Pressure Tons AC EXTERNAL STATIC PRESSURE Inches Water Column Model ESP RISE RISE RISE RISE RISE 0403A A e om m 8
17. m service on this unit you assume responsibility for any personal injury or property damage which may result Many jurisdictions require a license to install or service heating and air conditioning equipment Installation and repair of this unit 4 WARNING should be performed ONLY by indi viduals meeting the requirements of an entry level tech nician at a minimum as specified by the Air Condition ing Heating and Refrigeration Institute AHRI Attempting to install or repair this unit without such background may result in product damage personal injury or death PRODUCT IDENTIFICATION The model and manufacturing number are used for positive identification of component parts used in manufacturing Please use these numbers when requesting service or parts information GDH80403A A GDH80403A B GDH80603A A GDH80603A B GDH80804B A GDH80804B B GDH81005C A GDH81005C B Models are available in Natural Gas and low NOx A WARNING The United States Environmental Protection Agency EPA has issued various regulations re garding the introduction and disposal of refrigerants introduced into this unit Failure to follow these regulations may harm the environment and can lead to the imposition of substantial fines These regulations may vary by jurisdiction Should questions arise contact your local EPA office Do not connect or use any device To prevent the risk of propert A WARNING thatis not design certified by Good
18. ray of Goodman brand coils are available for use with the GDH8 furnaces in dedicated downflow applications These coils are available in both cased and uncased models with the option of a field installed TXV expansion device These 8096 furnaces match up with the existing Goodman brand coils as shown in the chart below Coil Matches Goodman units using R22 and R 410A EXPANSION REVISION TYPE F Flowrater C Indoor Coil REFRIGERANT CHARGE 6 R 410A or R 22 CABINET FINISH 2 R 22 U Unpainted 4 R 410a P Painted N Unpainted Case NOMINAL WIDTH FOR GAS FURNACE A Fits 14 Furnace Cabinet APPLICATION B Fits 17 1 2 Furnace Cabinet A Upflow Downflow Coil C Fits 21 Furnace Cabinet H Horizontal A Coil D Fits 24 1 2 Furnace Cabinet S Horizontal Slab Coil N Does Not Apply Horizontal Slab Coils NOMINAL CAPACITY RANGE 13 SEER 1824 1 1 2 to 2 Tons 3030 2 1 2 Tons 3636 3 Tons 3642 3 to 3 1 2 Tons 3743 3 to 3 1 2 Tons 4860 4 amp 5 Tons 4961 4 8 5 Tons All CAPF coils in B C amp D widths have insulated blank off plates for use with one size smaller furnaces All CAPF coils have a CAUF equivalent All CHPF coils in B C amp D heights have an insulated Z bracket for use with one size smaller furnace All proper coil combinations are subject to being AHRI rated with a matched outdoor unit PRODUCT DESIGN Thermostats NOTE Complete lineup of thermostats can be found in the Thermostat
19. re larger wire sizes 5 Maximum Overcurrent Protection Device refers to maximum recommended fuse or circuit breaker size May use fuses or HACR type circuit breakers of the samesize as noted Notes All fumaces are manufactured for use on 115 VAC 60 Hz single phase electrical supply Gas Service Connection Important Size fuses and wires properly and make electrical connections in accordance with the National Electrical Code and or all existing local codes NOTES These furnaces are manufactured for natural gas operation Optional Kits are available for conversion to propane gas operation For elevations above 2000 ft the rating should be reduced by 4 for each 1000 ft above sea level The furnace must not be derated orifice changes should only be made if necessary for altitude d The total heat loss from the structure as expressed in TOTAL BTU HR must be calculated by the manufactures method in accordance with the A S H R A E GUIDE or MANUAL J LOAD CALCULATIONS published by the AIR CONDITIONING CONTRACTORS OF AMERICA The total heat loss calculated should be equal to or less than the heating capacity Output based on D O E test procedures steady state efficiency times output Unit specifications are subject to change without notice ALWAYS refer to the unit s serial plate for the most up to date general and electrical information 11 FURNACE SPECIFICATIONS GDH8 B Btuh Input US High Fire 40 000
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