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TECHNICAL MANU TECHNICAL MANU TECHNICAL MANUAL AL AL
TECHNICAL MANU TECHNICAL MANUAL AL
GCH9
40" 95% Gas Furnace
• Refer to Service Manual RS6610004 for installation, operation, and troubleshooting information.
• All safety information must be followed as provided in the Service Manual.
• Refer to the appropriate Parts Catalog for part number information.
• Model numbers listed on page 3.
®
US
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This manual is to be used by qualified, professionally trained HVAC technicians only.
RT6612019 Rev
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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. G C 3 B XA H 9 045 A Brand: Minior G: Goodman Revision A: Revision Air Flow Direction M:Upflow/Horizontal D: Dedicated Downflow Major Revision C: Downflow/Horizontal A: Initial Release H: Hi Air Flow Description NOx H: Dual $aver/Multi-speed N: Natural Gas V: Two-Stage/Variable-speed X: Low
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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. GCH90453BXA* GCH90703BXA* GCH90704CXA* GCH90904CXA* GCH90905DXA* GCH91155DXA* These models are Low NOx. The United States Environmental Protection Agency (“EPA”) has issued various regulations re- WARNI WARNING NG garding the introduction and disposal of refrigerants introduced into this uni
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PRODUCT DESIGN 3. Conversion kits for high altitude natural or propane gas General Operation operation are available. See High Altitude Derate chart The GCH9 furnaces are equipped with an electronic ignition for details. device used to light the burners and an induced draft blower 4. Installer must supply the following gas line fittings, de- to exhaust combustion products. pending on which entrance is used: An interlock switch prevents furnace operation if the blower Left -- Two 90º Elbows, one
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COMPONENT IDENTIFICATION 10 5 26 27 31 11 24 28 25 3 15 23 14 3 29 30 31 16 17 18 18 19 19 20 20 13 12 2 21 1 9 6 8 4 7 7 Downflow /Horizontal 1 Two-Stage Gas Valve 19 Coil Front Cover Drain Port 2 Gas Line Entrance (Alternate) 20 Drain Line Penetrations 3 Pressure Switch(es) 21 Drain Trap 4 Gas Manifold 22 Blower Door Interlock Switch 5 Combustion Air Intake Connection 23 Capicitor 6 Hot Surface Igniter 24 Integrated Control Module 7 Rollout Limit (with fuse and diagnostic LED) 8 Burners 25 24
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COMPONENT IDENTIFICATION GCH9*****XA* LEFT SIDE FRONTVIEW RIGHT SIDE VIEW VIEW 28 3/4 A 3/4 3/4 2 1/2 B 3/4 VENT/FLUE PIPE 20 1/4 AIR INTAKE PIPE (RETURN) 2" PVC 2" PVC 2 1/16 CONDENSATE DRAIN TRAP LOW VOLTAGE 1 3/4 ELECTRICAL HOLE w/ 3/4" PVC 1 3/4 DISCHARGE LOW VOLTAGE HIGH VOLTAGE (RIGHT OR ELECTRICAL HOLE 40 ELECTRICAL HOLE LEFT SIDE) ALTERNATE VENT/FLUE 6 1/8 28 5/16 28 5/16 LOCATION HIGH VOLTAGE ALTERNATE 2 11/16 ELECTRICAL HOLE AIR INTAKE LOCATION 19 7/8 DRAIN DRAIN 2 5/8 TRAP TRAP 2 5
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PRODUCT DESIGN PRESSURE SWITCH TRIP POINTS AND USAGE CHART 0 to 7,000 ft. ID BLOWER TRIP POINT TRIP POINT MODEL PRESSURE PRESSURE COIL COVER ID BLOWER SWITCH SWITCH PRESSURE SWITCH PRESSURE SWITCH PART # PART # GCH90453BX -.60 20197311 -.60 20197311 GCH90703BX -.60 20197311 -.60 20197311 GCH90704CX -.37 20197313 -.37 20197313 GCH90904CX -.60 20197311 -.60 20197311 GCH90905CX -.37 20197313 -.37 20197313 GCH91155DX -.60 20197311 -.60 20197311 Note: Replacement pressure switch number is listed bel
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PRODUCT DESIGN ROLLOUT LIMIT SWITCHES Part Number 10123517 10123534 Open Setting (°F) 210 220 GCH90453BX 1 GCH90703BX 2 GCH90704CX 2 GCH90904CX 2 GCH90905DX 2 GCH91155DX 2 AUXILIARY LIMIT SWITCHES Part Number 10123518 10123519 Open Setting (°F) 170 160 GCH90453BX 2 GCH90703BX 2 GCH90704CX 2 GCH90904CX 2 GCH90905DX 2 2 GCH91155DX 8
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PRODUCT DESIGN Coil Matches: ® A large array of Amana brand coils are available for use with the GCH9 furnaces, in either counterflow or horizontal applications. These coils are available in both cased and uncased models (with the option of a field installed TXV expansion ® device). These 90%+ furnaces match up with the existing Amana brand coils as shown in the chart below. ® Coil Matches (Goodman units using R22 and R-410A): CAP F 1824 A 6 A EXPANSION REVISION DEVICE: PRODUCT A: Revis
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PRODUCT DESIGN Thermostats: NOTE: Complete lineup of thermostats can be found in the Thermostat 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/ULCS111 standards. Installing this furnace without filters will void the unit warranty. Upflow Filters This furnace has provisions for the installation of return air filters at the side and/or bottom return. The furnace will accommodate the followi
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PRODUCT DESIGN Dual $aver Configuration & Operation Dual $aver This furnace is capable fo the following 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 factory single-stage operation, adjust the dipswitches on the ignition control as follows: OFF ON Mode Mode Dipswitch 5 Min. Fixed 2nd Stage Delay Dipswitch Auto Note: This furnace is designed to be used with a single-stag
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FURNACE SPECIFICATIONS GCH9 MODEL GCH90453BX GCH90703BX GCH90704BX GCH90904CX GCH90905CX GCH91155DX Btuh Input (US) 46,000 69,000 69,000 92,000 92,000 115,000 Output (US) 42,800 64,400 64,400 86,000 86,000 106,500 BTUH Output (US) LP 38,502 57,753 57,753 77,004 77,004 96,255 A.F.U.E. 93 93 93 93 93 93 Rated External Static (" w.c.) .20" - .50" .20" - .50" .20" - .50" .20" - .50" .20" - .50" .20" - .50" Temperature Rise (°F) 35-65 35-65 35-65 35-65 35-65 35-65 Pressure Switch Tr
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BLOWER PERFORMANCE SPECIFICATIONS BLOWER PERFORMANCE (CFM & Temperature Rise vs. External Static Pressure) Tons AC EXTERNAL STATIC PRESSURE (Inches Water Column) Model Motor at 0.5" 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Heating Speed Speed () As Shipped ESP CFM RISE CFM RISE CFM RISE CFM RISE CFM RISE CFM CFM CFM HIGH 3.0 1352 29 1318 30 1260 31 1202 33 1128 35 1044 955 853 GCH90453BXA* MED 2.5 1214 32 1172 34 1123 35 1064 37 1012 39 938 859 741 (MED-HI) MED-LO 2.0 997 40 994 40 960 41 923 43 884 45
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BLOWER PERFORMANCE SPECIFICATIONS 14 BTU OUTPUT vs TEMPERATURE RISE CHART 100 600 CFM 90 700 80 800 900 1000 70 1100 1200 60 1400 1600 50 1800 2000 2200 40 2400 CFM 30 FORMULAS BTU OUTPUT = CFM x 1.08 x RISE BTU OUTPUT 20 RISE = ÷ CFM 1.08 10 100 30 40 50 60 70 80 90 110 120 130 140 150 OUTPUT BTU/HR x 1000 TEMPERATURE RISE
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INTEGRATED CONTROL MODULE LINE NEUTRALS INTEGRATED CONTROL MODULE 24V THERMOSTAT CONNECTIONS BK BK OR BR GR GY RD OR YL OR BL PK WH WH 115 VAC NEUTRAL TERMINALS XFMR-H LO HEAT-H BLOWER INTEGRATED HUMIDIFIER 24 VAC OR COMPARTMENT CONTROL MODULE HUMIDIFIER GY DOOR SWITCH (OPEN WHEN TR (6) DOOR OPEN) GND 24 VAC GND (8) C MVC (9) GAS HI 115 VAC VALVE MVH (12) ERMO T 24V TH STA PM CONNECTIONS C MVL(2) NO C C G R W I BLOWER D FRONT COVER PRESSURE WH BK PRESSURE SWITCH SWITCH G NO PS (10) C PSO
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INTEGRATEDCO NTROL MODULE LINE NEUTRALS INTEGRATED CONTROL MODULE 24V THERMOSTAT CONNECTIONS BK BK OR BR GR GY RD OR YL OR BL PU WH WH 115 VAC NEUTRAL TERMINALS XFMR-H LO HEAT-H WIRING DIAGRAMS GCH9*****XAC BLOWER HUMIDIFIER INTEGRATED 24 VAC OR COMPARTMENT CONTROL MODULE HUMIDIFIER GY DOOR SWITCH (OPENWHE N TR(6 ) C 24 VAC DOOR OPEN) GND GND (8) GAS 40 VA HI VALVE MVC (9) TRANSFORMER PM 115 VAC MVH (12) 24V THERMOSTAT AUXILIARY LIMITCONT ROLS CONNECTIONS C CG R W Y MVL(2) C WH NO BK FRONT C
