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Table of contents for the manual
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Page 1
C US ® RT6621017r1 April 2010 This manual is to be used by qualified, professionally trained HV AC 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. ® is a registered trademark of Maytag Corporation or its related [...]
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Page 2
PRODUCT IDENTIFICA TION 2 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. WARNING WARNING HIGH VOLTAGE! Disconnect ALL power before servicing or installing this unit. Multiple power sources may be present. Failure[...]
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Page 3
PRODUCT IDENTIFICA TION 3 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. * Indicates minor revision & is not used for order entry or inventory management AMH80453AXC* AMH80703AXC* AMH80704BXC* AMH80903BXC* AM[...]
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Page 4
4 PRODUCT DESIGN WA R N I N G T O PREVENT P OSSI BLE PERSONAL I NJURY OR DEATH DUE TO ASPHYX I ATI ON, THI S FURNACE M UST BE C AT E GOR Y I VENT ED. D O NOT VENT USI NG C ATEGORY III VEN TI NG. 1. Category I Venting is venting at a non-positive pressure. A furnace vented as Category I is considered a fan-as- sisted appliance and the vent system do[...]
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Page 5
5 PRODUCT DESIGN Accessibility Clearances (Minimum) Unobstructed front clearance of 24" for servicing is rec- ommended. SW B 1 0 36 11 * 24" clear ance f or s erviceab ility recom me nded. MINIM UM CLEARA NCE TO COMBUSTIBLE MATERIAL S - INCHES ** Si ngle Wall Vent (SW ) to be us ed only as a con ncetor. Refer to the venting ta bles outl i[...]
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Page 6
COMPONENT IDENTIFICA TION 6 躀 Pressure Switch T ubul ar Heat E xchanger Flu e Pi pe C onnec ti o n Gas L i ne Entrance (Al tern at e) Indu ced Draf t Blowe r Gas Line En tr a nc e Gas V alve Roll o ut Li mit Junc tion Box Wiri ng Har nes s Grommet Gas Ma nif old Inshot Burne r Blower Door Interlock Switch Integrated Contr ol Module T rans for mer[...]
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Page 7
PRODUCT DIMENSIONS 7 AMH8 MO D EL S A B AMH 8 0 4 5 3 AX** AMH 8 0 7 0 3 AX** 14 1 2 - 1/ 2 AMH 8 0 7 0 4 BX** AMH 8 0 9 0 3 BX** AMH 8 0 9 0 4 BX** 17-1 / 2 16 A MH8 09 05C X * * A MH8 11 55C X * * 21 1 9 - 1/ 2 A MH8 140 5D X * * 24- 1 /2 23 A ll d i m e ns i o ns ar e i n in c h es . Alt. Ga s I nlet Hi gh Voltage In let Lo w V olt ag e Alt. Ga [...]
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Page 8
8 PRODUCT DESIGN MODEL TRIP POINT ID BLOWER PRESSURE SWITCH ID BLOWER PRESSURE SWITCH PART # MODEL TRIP POINT ID BLOWER PRESSURE SWITCH ID BLOWER PRESSURE SWITCH PART # AMH80453A X** -0.60 B1370142 AMH80453A X** -0.60 B1370142 AMH80703A X** -0.60 B1370142 AMH80703A X** -0.60 B1370142 AMH80704BX* * -0.60 B1370142 AMH80704BX** -0.47 B1370176 AMH80903[...]
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Page 9
9 PRODUCT DESIGN Coil Matches: A large array of Amana ® brand coils are available for use with the AMH8 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 80% furnaces match up with the existing Amana ® brand coils a[...]
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10 PRODUCT DESIGN Thermost at s: The following Amana ® brand Thermostats are suggested for use with the AMH8 Furnace Models: Filters: Filters are required with this furnace and must be provided by the installer. The filters used must comply with UL900 or CAN/ULCS111 standards. Installing this furnace without filters will void the unit warranty. Re[...]
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Page 11
11 PRODUCT DESIGN T winComfort™ Configuration & Operation OFF ON Blower Switch to Hi Heat Operation Blower Switch to Hi Heat Operation T-Stat S atisfied T-Stat S atisfied Delay Time ( 5 Min) Delay Time 1- 12 Min) Gas Valv e Swit ch to 2nd Stage Gas Valv e Swit ch to 2nd Stage Start Furnac e in Low Stage Start Furnac e in Low Stage Low-Heat Bl[...]
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Page 12
FURNACE SPECIFICA TIONS 12 NOTES: 1. For elevations above 2000 feet the rating should be reduced by 4% 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 meth[...]
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Page 13
BLOWER PERFORMANCE SPECIFICA TIONS 13 NOTES: 1 . CFM in chart is without filters(s). Filters do not ship with this furnace, but must be provided by the installer. 2 . All furnaces ship as high speed cooling. Installer must adjust blower cooling speed as needed. 3 . For most jobs, about 400 CFM per ton when cooling is desirable. 4 . INSTALLATION IS [...]
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Page 14
BLOWER PERFORMANCE SPECIFICA TIONS 14 30 40 50 60 70 80 90 1 10 12 0 100 13 0 140 150 100 90 80 70 60 50 40 30 20 10 OU TPUT B T U/HR x 10 00 BTU OUTPUT vs T EMPERA TURE RISE CHART TE M PE R AT U R E R ISE 600 CFM 700 900 100 0 1 100 1200 1400 1600 180 0 2000 2200 2400 CFM FORM ULA S BTU OUTPUT = C FM x 1.08 x RISE RISE = BTU OUTPUT 1.08 ÷ CFM 800[...]
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Page 15
15 WIRING DIAGRAMS Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring. HIGH VOL T A GE! DISCONNECT ALL POWER BEFORE SERVICI NG OR INST A LLING THIS UNIT . M UL TIPL E POW ER SOUR CES MA Y BE P RESENT . F AILURE TO DO SO MA Y CAUSE PROP ERTY DAMAG E, PERSO NAL INJURY OR DEA TH . AMH8_CA/CB CAP [...]
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16 WIRING DIAGRAMS Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring. HIGH VOL T A GE! DISCONNECT ALL POWER BEFORE SERVICI NG OR INST A LLING THIS UNIT . M UL TIPL E POW ER SOUR CES MA Y BE P RESENT . F AILURE TO DO SO MA Y CAUS E PROPERTY DAMAG E, PERSONAL I NJUR Y OR DEA TH. CA P BK (H I) A[...]
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17 SCHEMA TICS HI G H VO L T AG E! DISC ONNECT ALL POWER BEFORE SERVICI NG OR INST A LLIN G THIS UNIT . M UL TIPL E POW ER SOURCES M A Y BE PR ESENT . F AILURE T O DO SO MA Y CAUS E PROPERTY DAMAG E, PERSONAL I NJUR Y OR DEA TH . TYPICAL SCHEMATIC AMH8 ____** MODEL FURNACES WR 50M56-289 INTEGRATED IGNITION CONTROL .00 05 3M K4 K2 HI HEAT COOL PARK [...]