Goodman Mfg MH95/ACSH96/AMEH96/ GCH95/GME95/GCH9 Horizontal Upflow Model, Gas Piping Connections

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MANUAL SHUT-OFF VALVE

 

(UPSTREAM FROM GROUND

 

JOINT PIPE UNION)

GROUND

ALTERNATE

UNION

JOINT

LOCATION

PIPE

DRIP LEG

UNION

 

GAS VALVE

GROMMET IN STANDARD

GAS LINE HOLE

 

BURNERS

DRAIN TRAP

 

 

 

 

GROMMET IN ALTERNATE

 

 

 

 

MANIFOLD

 

 

 

 

 

 

GAS LINE HOLE

ALTERNATE GAS

 

 

 

 

 

LINE LOCATION

 

 

 

HORIZONTAL [UPFLOW MODEL]

 

ALTERNATE

GROUND

UNION

LOCATION

JOINT

 

PIPE

 

UNION

 

GAS VALVE

 

BURNERS

DRAIN TRAP

MANIFOLD

GORMMET IN ALTERNATE

ALTERNATE GAS

GAS LINE HOLE

LINE LOCATION

 

HORIZONTAL [COUNTERFLOW]

Gas Piping Connections

WARNING

EDGES OF SHEET METAL HOLES MAY BE SHARP. USE GLOVES AS A PRECAUTION WHEN REMOVING HOLE PLUGS.

DIRECT/STANDARD INLET PIPING

When gas piping enters directly to the gas valve through the standard inlet hole, the installer must supply straight pipe with a ground joint union to reach the exterior of the furnace. The rigid pipe must be long enough to reach the outside of the cabinet to seal the grommet cabi- net penetration. A semi-rigid connector to the gas piping can be used outside the cabinet per local codes.

INDIRECT/ALTERNATE INLET PIPING

When gas piping enters indirectly to the gas valve through the alternate gas inlet hole, the following 1/2 inch pipe fittings (starting from the gas valve) to reach the outside of the cabinet must be supplied:

(1) Close nipple

(1) 90 degree street elbow

(1) 2 1/2” pipe nipple

(1) 90 degree elbow

Straight Pipe

The straight pipe must be long enough to reach the outside of the cabinet so as to seal the grommet cabinet penetration and to install the ground joint union outside the cabinet. A semi-rigid connector to the gas piping can be used outside the cabinet per local codes.

GAS PIPING CHECKS

Before placing unit in operation, leak test the unit and gas connec- tions.

WARNING

TO AVOID THE POSSIBILITY OF EXPLOSION OR FIRE, NEVER USE A MATCH OR OPEN FLAME TO TEST FOR LEAKS.

Check for leaks using an approved chloride-free soap and water solution, an electronic combustible gas detector, or other approved testing methods.

NOTE: Never exceed specified pressures for testing. Higher pressure may damage the gas valve and cause subsequent overfiring, resulting in heat exchanger failure.

Disconnect this unit and shutoff valve from the gas supply piping system before pressure testing the supply piping system with pres- sures in excess of 1/2 psig (3.48 kPa).

Isolate this unit from the gas supply piping system by closing its external manual gas shutoff valve before pressure testing supply piping system with test pressures equal to or less than 1/2 psig (3.48 kPa).

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Contents GCH95/GME95/GCH9 Table of Contents XVIII. Troubleshooting XIV. Startup Procedure & AdjustmentXVII. Safety Circuit Description XIX. MaintenanceCarbon Monoxide Poisoning Hazard Upflow/Horizontal Component IdentificationII. Safety Considerations What to do if YOU Smell GASElectrostatic Discharge ESD Precautions III. Product ApplicationIV. Location Requirements & Considerations GeneralFurnace Suspension Clearances and AccessibilitySuspended Furnace Existing Furnace RemovalThermostat Influences Combustion & Ventilation AIR RequirementsThermostat Location See 5.3.3-a VI. Installation Positions VII. Horizontal Applications & ConsiderationsHorizontal Furnace Alternate Electrical and GAS Line Connections Recommended Installation PositionsVIII. Propane GAS /HIGH Altitude Installations Drain PANDirect Vent Terminal Clearances Materials and Joining Methods IX. VENT/FLUE Pipe & Combustion AIR PipeDual Certification NON-DIRECT/DIRECT Vent Proper VENT/FLUE and Combustion AIR Piping PracticesCanadian Venting Requirements Increased Clearance ConfigurationTermination Locations Standard Furnace ConnectionsVent/Flue Pipe Cuts Alternate Furnace ConnectionsAlternate Vent/Flue Location NON-DIRECT Vent Single Pipe PipingDirect Vent Dual Pipe Piping Condensate Drain Lines & Drain Trap Alternate Horizontal Vent Termination Dual PipeTermination of Multiple Direct Vent Furnaces Concentric Vent TerminationHose and Tube Identification Standard Right or Left Side Drain Hose ConnectionsDrain Trap Alternate VENT/FLUE Drain Hose ConnectionsUpright INSTALLATIONS-TRAP on Left Side Upright Standard Connections Left SideHorizontal Installations Right Side Down Upright Drain Trap Mounting Left or Right Side PanelLeft Side Down Horizontal Drain Trap Mounting Left or Right Side PanelJunction Box Relocation Wiring HarnessXI. Electrical Connections Junction BOX RelocationVolt Thermostat Wiring Thermostat DiagramField Wiring for GME95 /AMEH96 Furnacewith 2-Stage GME95/AMEH96 Furnace with 2-STAGE Condenser Field WiringNals XII. GAS Supply and Piping Volt HumidifierGAS Piping Connections Rack, manifold or gas valve Horizontal Upflow Model Gas Piping ConnectionsXIII. Circulating AIR & Filters Propane Gas Installation TypPropane Gas Piping Chart Propane GAS Tanks and PipingChecking Duct Static Checking Static Pressure 80% Furnace Shown, 90% SimilarDuct Flange Cut Outs Bottom Return AIR Opening Upflow ModelsDisposable Minimum Filter area sq. XIV. Startup Procedure & AdjustmentPermanent Minimum Filter Area sq. Filter LocationsHoneywell Model VR9205 Connected to Manometer White-Rodgers Model 36G54 Connected to ManometerWhite-Rodgers Model 36G54 Two-Stage GAS Supply Pressure MeasurementGAS Manifold Pressure Measurement and Adjustment Measuring Inlet Gas Pressure Alt. MethodGAS Input Rate Measurement Natural GAS only Temperature Rise Measurement Temperature RiseCirculator Blower Speeds Power UP Circulator Blower FAN Timing AdjustmentSetting Furnace Operating Mode Heating ModePage XVIII. Troubleshooting XIX. Maintenance XX. Before Leaving AN Installation XXI. Repair & Replacement PartsTroubleshooting Chart No signalContinuously MH95 Blower Performance DataACSH96 AMEH96 GCH95 / GCH9115 GME95 Wiring Diagram MH950453,0704,0905D MH950703,0904,1155MH950905CX GME95 / AMEH96 GAS Vent Directly BELOW. Keep Clear of ALL Obstructions ExemptionsThis page Left Intentionally Blank This page Left Intentionally Blank This page Left Intentionally Blank Quality Makes the Difference