American Water Heater AHCG/HCG3 60T 120 - AHCG3/HCG3 100T 250 Operational Problems

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OPERATIONAL PROBLEMS

Read and understand this instruction manual and the safety messages herein before installing, operating or servicing this water heater.

Failure to follow these instructions and safety messages could result in death or serious injury.

This manual must remain with the water heater.

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INSTALLATION ERRORS

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ROUGH STARTING, ROUGH OPERATION

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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MOMENTARY IGNITION

CAUTION

Burn Hazard

The combustion chamber and burner sleeve and housing become very hot during operation.

 Do not reach into the burner housing or combustion chamber if the water heater is still hot.

 Allow the water heater to cool and always use gloves when handling the main burner.

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NOT ENOUGH OR NO HOT WATER

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Contents Installation Operation Service Maintenance Limited Warranty DSSUHFLDWH\RXUFRQ¿GHQFHLQRXUSURGXFWVAmerican Water Heater 7KDQN\RXIRUEX\LQJWKLVHQHUJ\HI¿FLHQWZDWHUKHDWHUTable of Contents Safe INSTALLATION, USE and Service ApprovalsSRWHQWLDOHSRVXUHWRVXFKVXEVWDQFHV KHDWHUVFRYHUHGLQWKLVPDQXDOGeneral Safety Information PrecautionsGrounding Instructions Hydrogen GAS FlammableInstalling, using or servicing Water heater Fire or Explosion HazardPreparing for the Installation Qualified Installer or Service AgencyIntroduction Abbreviations UsedFeatures and Components Basic OperationTOP Views HCG3 120 & 150 ComponentsHCG3 199 & 250 Components ,QWDNHDLUFRQQHFWLRQLQFK39& 3RZHUHGDQRGHURGV7KHZDWHUKHDWHU¶VFRYHUHGLQWKLV Side Views  DWHURXWOHWSLSH´137FRQQHFWLRQ9HQWFRQQHFWLRQ HKDXVWHOERZ LQFK39& RQSDJHDQG&RQGHQVDWHUDLQ,QVWDOODWLRQRQSDJHInstallation Considerations Rough in DimensionsTOP Views FrontRecovery Capacities GAS Pressure RequirementsLocating the Water Heater GAS Line Connection SizeExtended Vent Terminations Optional Concentric TerminationsHard Water Circulation PumpsInstallation Requirements Power SupplyGAS Supply Systems Supply GAS RegulatorMixing Valves Dishwashing MachinesClosed Water Systems Thermal ExpansionTEMPERATURE-PRESSURE Relief Valve Valve Discharge Pipe RequirementsCondensate Drain Combustible Material StorageContaminated AIR Condensate Drain Water TrapAIR Requirements Unconfined SpaceConfined Space Unusually Tight ConstructionFresh AIR Openings for Confined Spaces Outdoor AIR Through TWO OpeningsOutdoor AIR Through ONE Opening Outdoor AIR Through TWO Horizontal DuctsOutdoor AIR Through TWO Vertical Ducts AIR from Other Indoor SpacesRXWGRRUV6HHLJXUH WKDQLQFKHV FP Installation of Carbon Monoxide Detectors Commonwealth of Massachusetts InspectionApproved Carbon Monoxide Detectors SignageVenting Installation Power Vent ConfigurationGeneral Venting Information 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 Supplied Installed Intake AIR Field Supplied Factory Installed Intake AIR ConnectionRemove for Direct Vent Pipe FieldVertical Termination Installation Vertical Terminations Installation Vertical Termination Direct VentVertical Terminations Flat Roof Clearance Field Supplied STRAP/SUPPORTSidewall Termination Installation Sidewall Termination InstallationSDVVWKURXJKWKHZDOO OHDVWLQFKHV FP 6HHLJXUHConcentric Termination Installation Concentric Termination Flat Roof ClearanceQDWLRQDOFRGHVPXVWEHPDLQWDLQHG VDPHORFDWLRQInch Concentric Termination Installation Inch Concentric Termination KITTWO Concentric Terminations Three Concentric TerminationsFour Concentric Terminations Eight Concentric TerminationsMultiple Concentric Termination Arrangements Two Concentric TerminationsEight 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 VentWater Heater Installation Condensate Drain InstallationInstallation Notes Installation InstructionsSupply GAS Line Installation GAS Line SizingSupply GAS Line Sizing U. S. Units Supply GAS Line Sizing Metric UnitsGAS Line Leak Testing PurgingGAS Line Connection Electrical Wiring Power Supply ConnectionsENABLE/DISABLE Circuit Connecting An External Supervisory ControlWater Piping Diagrams Water Line Connections Valve Discharge PipeThermometers not Supplied Water Potable Heating and Space HeatingTemperature Regulation High Temperature Limit Control ECOHigh Temperature Applications Thermostat ControlControl System Operation OverviewControl System Navigation Menu HelpStatus Icons Icon DescriptionOperating States State DescriptionControl System Menus Menu DescriptionUser Settings & Control System Menus Update CancelBack Help Change Back Help Elapsed Time Day 0 hrs 0 minsBurner On Time Hrs 22 minsBack Advanced View Back HelpECO YesnoUpdate Select Back HelpName Your Company Name HereStart UP Prior to Start UPInitial Start UP GAS Valve / Venturi Assembly TOP View GAS Valve TOP ViewGAS Valve Side View GAS Valve TOP Detail ViewSupply GAS Pressure Adjustment Multiple Water Heater InstallationsManifold GAS Pressure Adjustment PDQXDOIRUIXUWKHUDVVLVWDQFHChecking the Firing Rate High Altitude Installations ‡  VHFRQGVLQRQHKRXUTo Turn OFF GAS FLUFXPVWDQFHVOn/Off Switch Lighting the Water HeaterLighting & Operation Labels 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 noOperational Problems Installation ErrorsRough STARTING, Rough Operation 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 Filling the Water Heater Sediment RemovalLime Scale Removal Manual Lime Scale RemovalPowered Anode Rods Drain Valve and Access PanelsTEMPERATURE-PRESSURE Relief Valve Test Vent SystemDiagrams S1 DipswitchCCB Central Control Board Layout Changing Number of Ignition Trials Before Lock OUTHCG3 120 & 150 Wiring Diagram Transformer 50VAON/OFF 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 Water Piping Diagrams Line Temperature Control HOT Water ReturnHOT Water Outlet Pipe T&P to Open Drain Finished Floor Cold Water Supply Expansion Tank6HH&ORVHG6\VWHPVDQG7KHUPDOSDQVLRQRQSDJH 6HHDWHU/LQH&RQQHFWLRQVRQSDJHHIRUHLQVWDOODWLRQRIZDWHUSLSLQJUHYLHZWKHIROORZLQJ 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.