American Water Heater AHCG/HCG3 60T 120 - AHCG3/HCG3 100T 250 Supply GAS Pressure Adjustment

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SUPPLY GAS PRESSURE ADJUSTMENT

Fire and Explosion Hazard

Do not use water heater with any gas other than the gas shown on the rating label.

Excessive gas pressure to gas valve can cause serious injury or death.

Turn off gas lines during installation.

Contact a qualified installer or service agency for installation and service.

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MANIFOLD GAS PRESSURE ADJUSTMENT

Fire and Explosion Hazard

Under no circumstances should the input exceed the rate shown on the water heater’s rating label.

Overfiring could result in fire or explosion.

Gas and carbon monoxide detectors are available.

Breathing Hazard - Carbon Monoxide Gas

Under no circumstances should the input exceed the rate shown on the water heater’s rating label.

Overfiring could result in damage to the water heater and sooting.

Gas and carbon monoxide detectors are available.

Breathing carbon monoxide can cause brain damage or death. Always read and understand instruction manual.

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Contents American Water Heater Installation Operation Service Maintenance Limited WarrantyDSSUHFLDWH\RXUFRQ¿GHQFHLQRXUSURGXFWV 7KDQN\RXIRUEX\LQJWKLVHQHUJ\HI¿FLHQWZDWHUKHDWHUTable of Contents SRWHQWLDOHSRVXUHWRVXFKVXEVWDQFHV Safe INSTALLATION, USE and ServiceApprovals KHDWHUVFRYHUHGLQWKLVPDQXDOGrounding Instructions General Safety InformationPrecautions Hydrogen GAS FlammableInstalling, using or servicing Water heater Fire or Explosion HazardIntroduction Preparing for the InstallationQualified Installer or Service Agency Abbreviations UsedFeatures and Components Basic OperationTOP Views HCG3 120 & 150 ComponentsHCG3 199 & 250 Components ,QWDNHDLUFRQQHFWLRQLQFK39& 3RZHUHGDQRGHURGV7KHZDWHUKHDWHU¶VFRYHUHGLQWKLV 9HQWFRQQHFWLRQ HKDXVWHOERZ LQFK39& Side Views DWHURXWOHWSLSH´137FRQQHFWLRQ RQSDJHDQG&RQGHQVDWHUDLQ,QVWDOODWLRQRQSDJHTOP Views Installation ConsiderationsRough in Dimensions FrontLocating the Water Heater Recovery CapacitiesGAS Pressure Requirements GAS Line Connection SizeHard Water Extended Vent TerminationsOptional Concentric Terminations Circulation PumpsGAS Supply Systems Installation RequirementsPower Supply Supply GAS RegulatorClosed Water Systems Mixing ValvesDishwashing Machines Thermal ExpansionTEMPERATURE-PRESSURE Relief Valve Valve Discharge Pipe RequirementsContaminated AIR Condensate DrainCombustible Material Storage Condensate Drain Water TrapConfined Space AIR RequirementsUnconfined Space Unusually Tight ConstructionOutdoor AIR Through ONE Opening Fresh AIR Openings for Confined SpacesOutdoor AIR Through TWO Openings Outdoor AIR Through TWO Horizontal DuctsRXWGRRUV6HHLJXUH Outdoor AIR Through TWO Vertical DuctsAIR from Other Indoor Spaces WKDQLQFKHV FP Approved Carbon Monoxide Detectors Installation of Carbon Monoxide DetectorsCommonwealth of Massachusetts Inspection SignageGeneral Venting Information Venting InstallationPower Vent Configuration General Venting InstructionsINSPECT/ADJUST Intake AIR TEE Fitting Adjustment ProcedureHCG3 100T 199 & SUF 250 Intake AIR Connection Venting Requirements Venting Installation Sequence Power Vent InstallationDirect Vent Installation Remove for Direct Vent Supplied Installed Intake AIRField Supplied Factory Installed Intake AIR Connection Pipe FieldVertical Termination Installation Vertical Terminations Flat Roof Clearance Vertical Terminations InstallationVertical Termination Direct Vent Field Supplied STRAP/SUPPORTSDVVWKURXJKWKHZDOO Sidewall Termination InstallationSidewall Termination Installation OHDVWLQFKHV FP 6HHLJXUHQDWLRQDOFRGHVPXVWEHPDLQWDLQHG Concentric Termination InstallationConcentric Termination Flat Roof Clearance VDPHORFDWLRQInch Concentric Termination Installation Inch Concentric Termination KITFour Concentric Terminations TWO Concentric TerminationsThree Concentric Terminations Eight Concentric TerminationsEight Concentric Terminations Multiple Concentric Termination ArrangementsTwo Concentric Terminations JURXSVGHSHQGLQJRQDYDLODEOHVSDFHPower Vent Horizontal Venting ArrangementsDirect Vent Horizontal Direct Vent Vertical Vent Horizontal Intake Direct Vent Horizontal Vent Vertical IntakeDirect Vent Horizontal Concentric Termination Clearances Sidewall Power Vent Power VentTermination Clearances Sidewall Direct Vent Direct VentInstallation Notes Water Heater InstallationCondensate Drain Installation Installation InstructionsSupply GAS Line Sizing U. S. Units Supply GAS Line InstallationGAS Line Sizing Supply GAS Line Sizing Metric UnitsGAS Line Leak Testing PurgingGAS Line Connection ENABLE/DISABLE Circuit Electrical WiringPower Supply Connections Connecting An External Supervisory ControlThermometers not Supplied Water Piping DiagramsWater Line Connections Valve Discharge Pipe Water Potable Heating and Space HeatingHigh Temperature Applications Temperature RegulationHigh Temperature Limit Control ECO Thermostat ControlControl System Navigation Control System OperationOverview Menu HelpStatus Icons Icon DescriptionControl System Menus Operating StatesState Description Menu DescriptionUser Settings & Control System Menus Update CancelBack Help Change Back Help Burner On Time Elapsed TimeDay 0 hrs 0 mins Hrs 22 minsECO Back AdvancedView Back Help YesnoName UpdateSelect Back Help Your Company Name HereStart UP Prior to Start UPInitial Start UP GAS Valve Side View GAS Valve / Venturi Assembly TOP ViewGAS Valve TOP View GAS Valve TOP Detail ViewManifold GAS Pressure Adjustment Supply GAS Pressure AdjustmentMultiple Water Heater Installations PDQXDOIRUIXUWKHUDVVLVWDQFHTo Turn OFF GAS Checking the Firing Rate High Altitude Installations‡  VHFRQGVLQRQHKRXU FLUFXPVWDQFHVLighting & Operation Labels On/Off SwitchLighting the Water Heater DQGRSHUDWLQJWKHZDWHUKHDWHUTank Temperature 103F Operating Set Point 120F Do not TRY to Light the Burner by HandMenu Help Troubleshooting Installation Checklist Sequence of OperationSequence of Operation Flow Chart YES noRough STARTING, Rough Operation Operational ProblemsInstallation Errors Momentary IgnitionFault and Alert Conditions Possible Causes CHECK/REPAIR Displayed FAULT/ALERT Message Back AdvancedHeater Information menu see Heater Information on Blower Prover Failure No Anode VoltageMaintenance General Maintenance ScheduleDraining and Flushing Lime Scale Removal Filling the Water HeaterSediment Removal Manual Lime Scale RemovalTEMPERATURE-PRESSURE Relief Valve Test Powered Anode RodsDrain Valve and Access Panels Vent SystemCCB Central Control Board Layout DiagramsS1 Dipswitch Changing Number of Ignition Trials Before Lock OUTON/OFF HCG3 120 & 150 Wiring DiagramTransformer 50VA Ground VAC Neutral VAC HOTHCG3 199 & 250 Wiring Diagram 11 on J6 PlugGround Strip Burner Ground Inside CCB Burner Bolt Enclosure Circulation Pump Wiring Diagrams HOT Water Outlet Pipe T&P to Open Drain Water Piping DiagramsLine Temperature Control HOT Water Return Finished Floor Cold Water Supply Expansion TankHIRUHLQVWDOODWLRQRIZDWHUSLSLQJUHYLHZWKHIROORZLQJ 6HH&ORVHG6\VWHPVDQG7KHUPDOSDQVLRQRQSDJH6HHDWHU/LQH&RQQHFWLRQVRQSDJH 6HH0LLQJ9DOYHVRQSDJHStorage Tank HOT Water OutletPipe T&P to Open Drain Finished Floor Storage Tanktemperature Water Piping Diagrams Open Drain HOT Water Return Cold Water Supply Expansion Tank Temperature & Pressure HOT Water Outlet Pipe T&P to Open Drain Finished FloorFull Port Ball Valve 6&XVWRPHUV Page ZZZDPHULFDQZDWHUKHDWHUFRP

AHCG/HCG3 60T 120 - AHCG3/HCG3 100T 250, Commercial Gas Water Heaters specifications

American Water Heater's Commercial Gas Water Heaters, particularly the AHCG/HCG3 60T 120 and AHCG3/HCG3 100T 250 models, stand out in the market for their impressive performance and reliable efficiency. Designed to meet the demanding needs of commercial applications, these gas water heaters provide an optimal solution for businesses requiring consistent hot water supply.

One of the main features of the AHCG/HCG3 series is its exceptional heat capacity. The models are engineered to deliver high recovery rates, ensuring that adequate hot water is available even during peak demand periods. The AHCG/HCG3 60T 120 can yield a robust output, ideal for smaller to medium-sized facilities, while the AHCG3/HCG3 100T 250 is designed for larger operations that require enhanced capacity.

These water heaters incorporate innovative technologies to maximize efficiency. The use of a high-efficiency burner system significantly reduces gas consumption, earning these models an Energy Factor rating that complies with modern energy standards. Additionally, the inclusion of a direct vent design allows for safe and efficient exhaust management, further promoting the energy-saving capabilities of these units.

The design of these commercial water heaters prioritizes durability and longevity. Constructed with heavy-duty components, including a corrosion-resistant water tank, these models are built to last, reducing the need for frequent replacements and maintenance. They also feature an advanced control system that monitors and adjusts the operation for optimal performance, enhancing user experience while decreasing operational costs.

Another notable characteristic of the AHCG/HCG3 series is their flexibility in installation. Both the 60T 120 and the 100T 250 models offer various venting options, which means they can easily fit into the existing infrastructure of many commercial facilities. This versatility facilitates a seamless integration process, saving time and resources during installation.

With a commitment to providing effective hot water solutions, American Water Heater continues to innovate, making the AHCG/HCG3 series a valuable addition to any commercial establishment. From restaurants to laundromats and beyond, these gas water heaters deliver reliable performance, ensuring that businesses can operate smoothly and efficiently.