AMH8 Technical Information
Contents
1. T AMH80604B AMH80803B 17 1 2 16 AMH80804B AMH80805C AMH81005C 15 18 AMH81205D 24 1 2 All dimensions are in inches 3 8 1 7 16 23 5 16 Alt Gas Inlet Alt High Voltage Alt LowVoltage PRODUCT DESIGN AMH8 A PRESSURE SWITCH TRIP POINTS AND USAGE CHART TRIP POINT ID BLOWER ID BLOWER PRESSURE PRESSURE SWITCH SWITCH PART AMH80403A A B1370158 AMH80603A A B1370158 Dawes For installaions in Canada the 8 furnace is certified only to 4 500 ft Negative pressure readings are in inches of water column w c PRIMARY LIMIT 0130F00035 20162906 20162903 0130F00036 AMH80403A A 1 AMH80803B A 1 4 AMH8 1005C A 1 812050 1 2 ROLLOUT LIMIT SWITCHES AUXILIARY LIMIT SWITCHES Open Setting F 300 Open Setting F 1 1 AMH80603A 80604 B AMH80803B 80804 B AMH80805C 81005 81 205 D PRODUCT DESIGN AMH8 B PRESSURE SWITCH TRIP POINTS AND USAGE CHART TRIP POINT ID BLOWER ID BLOWER PRESSURE PRESSURE SWITCH SWITCH PART AMH80403A B 0130F00042 80603 B 0130F00042 MODEL AMH80604B B 0130F00041 AMH80803B B 0130F00042. 60 50 40 WA 600 e e Ce E 5 100 1 10 30 WIRING DIAGRAMS lt H gt 18 o rI LE o z a o z 2 5 gt tc o 5 LL a LE o 2 2 o a WARNING UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH WARNING DISCONNECTPOWERBEFORE lt 4 HUMIDIFIER 4 INTEGRATED SERVICING WIRINGTOUNITMUSTBE j CONTROLMODULE PROPERLYPOLARIZEDANDGROUNDED T XFMR GNU 3l PP LL eee ASB GN
3. Brand 060 70 000 BTUH Multi Speed 080 90 000 BTUH 100 115 000 BTUH 120 140 000 BTUH CABINET WIDTH SUPPLY TYPE 2 As o cr M Upflow Horizontal B Revisions B 171 2 D 24 1 2 NOMINAL CAPACITY des 040 40 000 BTUH 8 80 060 60 000 BTUH 080 80 000 BTUH CAPABILITY 100 100 000 BTUH 120 120 000 BTUH pP MAJOR REMSION 1600 A Initial Release 5 2000 a WARNING 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 T WARNING Goodman will not be responsible T WARNING Installation and repair of this unit for any injury or property damage be performed ONLY by arising from improper service or service procedures If individuals meeting you install or perform service on this unit you assume ments of an entry level technician at a minimum as responsibility for any personal injury or property damage specified bythe Air Conditioning Heating and Refrigera which may result Many jurisdictions require a license to tion Institute AHRI Attempting to install or repair this install or service heating and air conditioning equipment 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 us
4. 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 14 BLOWER PERFORMANCE SPECIFICATIONS AMH8 A NOTES 1 2 3 4 5 o CFM in chart is without filters s Filters d All furnaces ship as high speed cooling CFM amp Temperature Rise vs External Static Pressure EXTERNAL STATIC PRESSURE Inches Water Column Toe os o9 08 o not ship with this furnace but must be provided by the installer nstaller must adjust blower cooling speed as needed For most jobs about 400 CFM 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 satis actory operation external static pressure must not exceed value shown on rating plate The shaded area indicates ranges in excess of maximum external static pressure allowed when heating The data for 0 6 w c to 0 8 w c is shown for air conditioning purposes only The dashed areas indicate a temperature rise not recommended for this model At higher altitudes a properly derated uni will have approximately the same temperature rise at a particular CFM while the ESP at tha
5. 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 con versions must be performed by a qualified installer or ser vice agency COMPONENT IDENTIFICATION 2 Switch Flue Pipe Connection Induced Draft Blower Gas Line Entrance 7 6 Gas Valve Rollout Limit 8 Junction Box Wiring Harness Grommet 14 Alternate 8 Circulator Blower 9 Gas Manifold Inshot Burner 3 Blower Door Interlock Switch 3 Integrated Control Module Note Primary Limit Not Shown Upflow Horizontal 1 Tubular Heat Exchanger 9 Wiring Harness Grommet 2 Pressure Switch 10 Gas Manifold 3 Flue Pipe Connection 11 Inshot Burner 4 Induced Draft Blower 12 Transformer 5 Gas Line Entrance 13 Integrated Control Module 6 GasValve 14 Blower Door Interlock Swtich 7 Rollout Limit 15 Circulator Blower 8 Junction Box 16 Gas Line Entrance Alternate PRODUCT DIMENSIONS Alt Gas Inlet 1 34 7 High Voltage Inlet Low Voltage 33 m 23 3 4 AMH80403A 12 1 2
6. 0 50 0 20 0 50 Temperature Rise F 25 55 25 55 20 50 35 65 35 65 35 65 35 65 40 70 Pressure Switch Trip Point w c 0 70 0 70 0 75 0 75 0 75 0 75 0 90 0 80 Blower Wheel D x W 10x6 10x6 10x8 10x8 10x8 10x10 10x10 11x10 Blower Horse power 1 3 1 3 1 2 1 3 1 2 1 2 1 2 3 4 Blower Speeds 4 4 4 4 4 4 4 4 Max CFM Q 0 5 E S P Power Supply Volts Hz P h 115 60 1 115 60 1 115 60 1 115 60 1 115 60 1 115 60 1 115 60 1 115 60 1 Minimum Circuit Ampacity MCA 8 1 8 1 12 5 8 1 12 5 12 5 12 5 14 7 Maximum Overcurrent Device 15 15 15 15 15 15 15 15 Transformer VA 40 40 40 40 40 40 40 40 Primary Limit Setting F Auxiliary Limit Setting F Rollout Limit Setting F Fan Delay On Heating Off Heating Fan Delay On Cooling Off Cooling Fan Delay On Fan Only as Supply Pressure Natural Propane w c Manifold Pressure Natural Propane w c Orifice Size Natural Propane Nu mber of Burners 2 3 3 4 4 4 5 6 Off Heating This fan delay timing is adjustable 90 120 150 or 180 seconds 150 seconds as shipped 1 These furnaces are manufactured for natural gas operation Optional kits are available for conversion to propane operation 2 Minimum Circuit Ampacity calculated as 1 25 x Circulator Blower Amps 1 0 Blower Amps Wire sizes should be determined in accordance with National Electrical Codes Extensive wire runs will require larger wire sizes 3 Maximum Overcurrent protec
7. 2 AMH80804B B 0130F000 42 AMH80805C B 0130F00042 AMH81005C B 0130F00042 AMH81205D B 0130F00042 For installaions in Canada the 8 furnace is certified only to 4 500 ft Negative pressure readings are in inches of water column w c PRIMARY LIMIT Part Number 20162904 20162903 20162901 1 3 3 mp xp o AMH80805C B AMH81005C B AMH81205D B Part Number 300 Open Setting F PRODUCT DESIGN Coil Matches A large array of Amana brand coils are available for use with the 8 furnaces in either upflow or horizontal applica tions 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 Amana brand coils as shown in the chart below Coil Matches Amana brand units using R22 and R 410A PXPANSION REVISION PRODUCT DEVICE A Revision TYPE F Flowrater C Indoor Coil REFRIGERANT CHARGE CABINET FINISH 6 410 or R 22 U Unpainted 2 R 22 P Painted 4 R 410a 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
8. 3 1 3 1 2 1 3 1 2 1 2 1 2 3 4 Blower Speeds 4 4 4 4 4 4 4 4 Max Q 0 5 E S P Power Supply Volts Hz P h 115 60 1 115 60 1 115 60 1 115 60 1 115 60 1 115 60 1 115 60 1 115 60 1 Minimum Circuit Ampacity MCA 8 1 8 1 12 5 8 1 12 5 12 5 12 5 147 Maximum Overcurrent Device 15 15 15 15 15 15 15 15 Transformer VA 40 40 40 40 40 40 40 40 Primary Limit Setting F Auxiliary Limit Setting F Rollout Limit Setting F Fan Delay On Heating Off Heating Fan Delay On Cooling Off Cooling Fan Delay On Fan Only as Supply Pressure Natural Propane w c Manifold Pressure Natural Propane w c Orifice Size Natural Propane Number of Burners Heating This fan delay timing is adjustable 90 120 150 or 180 seconds 150 seconds as shipped 1 These furnaces are manufactured for natural gas operation Optional kits are available for conversion to propane operation 2 Minimum Circuit Ampacity calculated as 1 25 x Circulator Blower Amps 1 0 Blower Amps Wire sizes should be determined in accordance with National Electrical Codes Extensive wire runs will require larger wire sizes 3 Maximum Overcurrent protections Device refers to maximum recommended fuse or circult breaker size May use time delay fuses or HACR type circuit breakers of the same sizes as noted NOTES 1 The total heat loss from the structure as expressed in TOTAL BTU HR must be calculated by the manufacturers method or
9. Amana TECHNICAL MANUAL LASTS AND LASTS AND LASTS AMH8 33 3 8 80 Gas Furnace 80 AFUE Twin Comfort Multi Speed Upflow Horizontal e Refer to Service Manual RS661 2007 for 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 Model numbers listed on page 3 amp 05 igre 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 RT6621023r3 November 2013 Amana is a registered trademark of Maytag Corporation or its related companies and is used under license to Goodman Company L P Houston TX All rights reserved Copyright 2011 2013 Goodman 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 ADDITIONAL PRODUCT Revisions FEATURES MINOR REVISION TYPE o FURNACE TYPE NOMINAL CAPACITY N Natural Gas Initial Release Amana ee TM 040 45 000 BTUH X Low NOx H Twin Comfort
10. D 1 24VAC 1 C2 HUMIDIFIER J HI VALVE 4 MVH 12 2 Epo 1 uet L MVL 2 P aN AUXILIARY LIMITCONTROLS y SWITCH POSU O PS 10 NO WE on ig Psa rn 1505 1008 To 6 Orro 5 i MICRO HLI 7 Z J WH 2 O66 2 5 nam m 00 FUSE g 8 AUTORESET AIDA 8 26 PRIMARY SEENOTES X158 m RO2 11 LIMIT 4 AUXILIARY 3 CONTROL BR LIMITS 9 O18 INTEGRATED o CONTROLMODULE MANUALRESETROLLOUT z LIMITCONTROL S m ey SINGLECONTROLONSOMEMODELS FS 5 XFMR 3 ra 24VAC A ala BL BR TRANSFORMER m 8 OY 2 2 XFMR H 115 XFMR N 5 x 5 FLAMESENSOR 8 9 2 EIE l gt in HOTSURFACE IGNITER XFMR H IGN IGNN 2 9 E 2 20 m EFI B som 5 22995 5 r BLWR g BK E 8 IND IND N 8 4 2 J BK 24V 8 g AA 8 28 5 8 Siw d 58 XFMR 29 WH o 5 BK GR 15PINPLUG 7 EACH EAC N ONSOMEMODELS LINE H LINE N Sm BURNERCOMPARTMENT JUNCTIONBOX 9 24 DOOR FU S 3 DOORSWITCH SWITCH Loud MN SWITCHLOCATEDINBLOWER o6 2 COMPARTMENTONSOMEMODELS e M i i WARNING RD p 5 DISCONNECTPOWER DISCONNECT Y YL BEFORESERVICING TOR PRIMARYLIMIT WIRINGTOUNIT T 1 RD MUSTBE PROPERLY i POLARIZED 22 ANDGROUNDED BK
11. L GND N BR BL OVERCURRENTPROTECTIONDEVICE WH M 5 JUNCTION HOT Wy BOX SURFACE 2STAGE IGNITER GASVALVE HONEYWELL PU H INDUCEDDRAFT CA CN BLOWER TO115VAC 1 60HZ PU z zt POWERSUPPLYWITH OVERCURRENTPROTECTION ROLLOUTLIMITS DEVICE SINGLECONTROLONSOMEMODELS 40 STEADYON NORMALOPERATION OFF CONTROLFAILURE LOWVOLTAGE 4V EQUIPMENTGND 7 1FLASH SYSTEMLOCKOUT RETRIES RECYCLESEXCEEDED LOWVOLTAGEFIELD FIELDGND 2FLASHES PRESSURESWITCHSTUCKCLOSED HIVOLTAGE 115V FIELDSPLICE SFLASHES PRESSURESWITCHSTUCKOPEN HIVOLTAGEFIELD Ss 2 4FLASHES OPENHIGHLIMIT JUNCTION SWITCH TEMP oge 5 5FLASHES FLAMESENSEWITHOUTGASVALVE IGNITER re 8 GFLASHES OPENROLLOUTOROPENFUSE TERMINAL Q 7 7FLASHES LOWFLAMESIGNAL nr NTERNALTO 2222 SWITCH PRESS oco 8FLASHES CHECKIGNITERORIMPROPERGROUND 5 PROT Bec PLUGCONNECTION d H 4 RAPIDFLASHES REVERSED115VACPOLARITY VERIFYGND NOTES COLORCODES PKPINK YL YELLOW BRBROWN OR ORANGE WH WHITE PUPURPLE BLBLUE RATINGOFATLEAST105 GRGREEN GYGRAY BKBLACK RD RED 0140F00662 REV A 1 SETHEATANTICIPATORONROOMTHERMOSTATATO 7AMPS 2 MANUFACTURER SSPECIFIEDREPLACEMENTPARTSMUSTBEUS EDWHENSERVICING S JFANYOFTHEORIGINALWIREASSUPPLIED WITHTHEFURNACEMUSTBE REPLACED ITMUSTBEREPLACEDWITHWIRINGMATE RIALHAVINGATEMPERATURE C USECOPPERCONDUCTORSONLY 4 BLOWERSPEEDSSHOULDBEADJUSTEDBYINSTALLERTOMATCHTHEINSTALLATION REQUIREMENTSSOASTOP
12. 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 4860 4 amp 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 ARI rated with a matched outdoor unit 10 PRODUCT DESIGN Thermostats It is recommended that a single stage heat non power robbing thermostat be used Refer to the product marketing literature for a complete list of thermostats offered 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 Upflow Filters Side Return s Bottom Return Cabinet Nominal Approx Cabinet Width Filter Size Flow Area Width in in in in i Refer to Minimum Filter Area tables to determine filter area requirement NOTE Filters can also be installed elsewhere in the duct system such as a central return MINIMUM FILTER SIZES for DISPOSABLE FILTERS 100M 120M DISPOSABLE NOMINAL 300 F M FACE VELOCITY 11 PRODUCT DESIGN TwinComfort V Configuration amp Operation TwinComfort This furnace is capable of the follow
13. ROVIDETHECORRECTHEATINGTEMPERATURERISEANDTHE CORRECTCOOLINGCFM SEESPECSHEETFORAIRFLOWCHART 5 UNITMUSTBEPERMANENTLYGROUNDE DANDCONFORMTON E C ANDLOCALCODES 6 TORECALLTHELAST5FAULTS MOSTRECENTTOLEASTRECENT DEPRESSSWITCH FORMORE THAN2SECONDSWHILEINSTANDBY NOTHERMOSTATINPUTS AMH8_ Wiring is subject to change Always refer to the wiring diagram on the unit for the most up to date wiring WIRING DIAGRAM HIGH VOLTAGE 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 RCULAT CR BLOWER ATR CLEANER NDUCER 7 PARK NEU EAC ND 5 R RO ROLLOUT fixe K3 K6 ROL SW TCH K7 XEMR LINE HOT acr 120 VAC J UPER COL R Y UNPER D T G Gl Ww GN GND M 7 MV PS n Li THERMOSTAT SENSOR PROBE 1 RES EM 1 GN TOR pm CMT 0 TAGE VAVE PRESSURE SW TCH TYPICAL SCHEMATIC AMH8 MODEL FURNACES WR 50M56 289 INTEGRATED IGNITION CONTROL This schematic is for reference only Not all wiring is as shown above Always refer to the appropriate wirin
14. ed in manufacturing Please use these numbers when requesting service or parts information AMH80403A A AMH80603A A AMH80604B A AMH80803B A AMH80804B A 80805 81005 AMH81205D A AMH80403A B AMH80603A B AMH80604B B AMH80803B B AMH80804B B AMH80805C B 81005 AMH81205D 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 4 WARNING thatis notdesign certified by Good man for use with this unit Serious property damage personal injury reduced unit perfor mance and or hazardous conditions may result from the use of such non approved devices 4 WARNING To prevent the risk of property damage personal injury or death do not store combustible materials or use gasoline or other flammable liquids or vapors in the vicinity of this appliance PRODUCT DESIGN General Operation The AMHB furnaces are equipped with an electronic ignition device used to light the burners and an induced draft blower to exhaust combustion products An
15. g diagram for the unit being serviced 19
16. ing heating modes Single Stage Factory Setting Modified Two Stage Fixed 5 Min Low Stage Auto Time 1 12 Min Low Stage To change from the factor single stage operation adjust the dipswitches on the ignition control as follows 100 150 HEAT OFF SECOND SECOND DELAY DELAY DELAY 1 STAGE SECOND STAGE NLY 5 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 Call for Heat Call for Heat Safety Circuit Check Safety Circuit Check i 1 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 12 FURNACE SPECIFICATIONS AMH8 A AMH80403A A AMH80603A A AMH80604B A AMH80803B A AMH80804B A AMH80805C A 81 005C A AMH81205D A Input Natural Gas BTUH 70 000 90 000 115 000 140 000 Output Natural Gas BTUH 56 000 72 000 92 000 112 000 Output LP BTUH 48 000 64 000 80 000 96 000 A F U E 80 096 80 096 80 0 80 0 Rated External Static w c 0 20 0 50 0 20 0 50 020 0 50 0 20 0 50 020 0 50 0 20 0 50 0 20
17. interlock switch prevents furnace operation if the blower door is not in place Keep the blower access door in place except for inspection and maintenance 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 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 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 Donotinstall the furnace directly on carpeting tile or combustible material other than wood flooring When suspending the furnace from rafters or joists use 3 8 threaded rod and 2 x 2 x 3 8 angle as shown i
18. n the Installation and Service Instructions The length of the rod will depend on the application and clearance necessary 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 PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE ASPHYXIATION THIS FURNACE MUST BE CATEGORY VENTED Do NOT VENT USING Catecory VENTING 1 Category Venting is venting at a non positive pressure A furnace vented as Category is considered a fan as sisted 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 exchanger 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 2223 1 latest edition In Canada the furnaces must be vented in accordance with the National Standard of Canada CAN CSA B149 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 2 Line voltage wiring can enter through the right or left side of the furnace Low voltage wiring can enter through the right or left side of furnace 3 Conve
19. rsion kits for propane gas and high altitude natural and propane gas operation are available See High Alti tude Derate chart for details PRODUCT DESIGN Accessibility Clearances Minimum Unobstructed front clearance of 24 for servicing is rec ommended MINIMUM CLEARANCE TO COMBUSTIBLE MATERIALS INCHES sw 24 clearance for serviceability recommended Single Wall Vent SW to be used only as a conncetor 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 a tabular
20. t CFM will be lower 15 BLOWER PERFORMANCE SPECIFICATIONS 8 amp Temperature Rise vs External Static Pressure Model Tons AC EXTERNAL STATIC PRESSURE Inches Water Column ese crw mse crw se ceu se ce mee ce ise 1 FM 1414 1298 MH80403A B 1132 1082 948 913 781 761 8060 80604 5 1 in chart is without filters s Filters do not ship with this furnace but must be provided by the installer All furnaces ship as high speed cooling Installer must adjust blower cooling speed as needed For most jobs about 400 CFM 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 value shown on rating plate The shaded area indicates ranges in excess of maximum external static pressure allowed when heating The data for 0 6 w c to 0 8 w c is shown for air conditioning purposes only 2 8 4 5 o The dashed areas indicate a temperature rise not recommended for this model BLOWER PERFORMANCE SPECIFICATIONS CFM x 1 08 x RISE FORMULAS BTU OUTPUT BTU OUTPUT 120 130 140 150 110 100 90 80 OUTPUT BTU HR x 1000 70 BTU OUTPUT vs TEMPERATURE RISE CHART
21. tions Device refers to maximum recommended fuse or circult breaker size May use time delay fuses or HACR type circuit breakers of the same sizes as noted NOTES 1 For elevations above 2000 feet the rating should be reduced by 495 for each 1000 feet above sea level The furnace must not be derated orifice changes should only be made if necessary for altitude 2 The total heat loss from the structure as expressed in TOTAL BTU HR must be calculated by the manufacturers method or 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 13 FURNACE SPECIFICATIONS AMH8 B AMH80403A B AMH80603A B AMH806 04B B AMH808 03B B AMH808 04B B AMH80805C B 81 005C B AMH81205D B Input Natural Gas BTUH 100 000 120 000 Output Natural Gas BTUH 80 000 96 000 Output LP BTUH 80 000 96 000 A F U E 80 0 80 0 Rated External Static w c 0 20 0 50 0 20 0 50 0 20 0 50 0 20 0 50 0 20 0 50 0 20 0 50 0 20 0 50 0 20 0 50 Temperature Rise 25 55 20 50 20 50 35 65 35 65 35 65 35 65 40 70 Pressure Switch Trip Point w c 0 80 0 80 0 90 0 80 0 80 0 80 0 80 0 80 Blower Wheel D x W 10x6 10x6 10x8 10x8 10x8 10x10 10x10 11x10 Blower Horsepower 1
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