American Water Heater Commercial Gas Water Heaters instruction manual Fault and Alert Conditions

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ALERT CONDITIONS

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WATER LEAKAGE IS SUSPECTED

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REPLACEMENT PARTS

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FAULT AND ALERT CONDITIONS

FAULT CONDITIONS

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DIAGNOSTIC CHECKS

Electrical Shock Hazard

Turn off power to the water heater before performing any service.

Label all wires prior to disconnecting when performing service. Wiring errors can cause improper and dangerous operation.

Verify proper operation after servicing.

Failure to follow these instructions can result in personal injury or death.

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Jumping out control circuits or components can result in property damage, personal injury or death.

Service should only be performed by a qualified service agent using proper test equipment.

Altering the water heater controls and/or wiring in any way could result in permanent damage to the controls or water heater and is not covered under the limited warranty.

Altering the water heater controls and/or wiring in any way could result in altering the ignition sequence allowing gas to flow to the main burner before the hot surface igniter is at ignition temperature causing delayed ignition which can cause a fire or explosion.

Any bypass or alteration of the water heater controls and/or wiring will result in voiding the appliance warranty.

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Contents DSSUHFLDWH\RXUFRQ¿GHQFHLQRXUSURGXFWV Installation Operation Service Maintenance Limited WarrantyAmerican Water Heater 7KDQN\RXIRUEX\LQJWKLVHQHUJ\HI¿FLHQWZDWHUKHDWHUTable of Contents Approvals Safe INSTALLATION, USE and ServiceSRWHQWLDOHSRVXUHWRVXFKVXEVWDQFHV KHDWHUVFRYHUHGLQWKLVPDQXDOPrecautions General Safety InformationGrounding Instructions Hydrogen GAS FlammableFire or Explosion Hazard Installing, using or servicing Water heaterQualified Installer or Service Agency Preparing for the InstallationIntroduction Abbreviations UsedBasic Operation Features and ComponentsHCG3 120 & 150 Components TOP Views,QWDNHDLUFRQQHFWLRQLQFK39& HCG3 199 & 250 Components 3RZHUHGDQRGHURGV7KHZDWHUKHDWHU¶VFRYHUHGLQWKLV  DWHURXWOHWSLSH´137FRQQHFWLRQ Side Views9HQWFRQQHFWLRQ HKDXVWHOERZ LQFK39& RQSDJHDQG&RQGHQVDWHUDLQ,QVWDOODWLRQRQSDJHRough in Dimensions Installation ConsiderationsTOP Views FrontGAS Pressure Requirements Recovery CapacitiesLocating the Water Heater GAS Line Connection SizeOptional Concentric Terminations Extended Vent TerminationsHard Water Circulation PumpsPower Supply Installation RequirementsGAS Supply Systems Supply GAS RegulatorDishwashing Machines Mixing ValvesClosed Water Systems Thermal ExpansionValve Discharge Pipe Requirements TEMPERATURE-PRESSURE Relief ValveCombustible Material Storage Condensate DrainContaminated AIR Condensate Drain Water TrapUnconfined Space AIR RequirementsConfined Space Unusually Tight ConstructionOutdoor AIR Through TWO Openings Fresh AIR Openings for Confined SpacesOutdoor AIR Through ONE Opening Outdoor AIR Through TWO Horizontal DuctsAIR from Other Indoor Spaces Outdoor AIR Through TWO Vertical DuctsRXWGRRUV6HHLJXUH WKDQLQFKHV FP Commonwealth of Massachusetts Inspection Installation of Carbon Monoxide DetectorsApproved Carbon Monoxide Detectors SignagePower Vent Configuration Venting InstallationGeneral Venting Information General Venting InstructionsAdjustment Procedure INSPECT/ADJUST Intake AIR TEE FittingHCG3 100T 199 & SUF 250 Intake AIR Connection Venting Requirements Power Vent Installation Venting Installation SequenceDirect Vent Installation Field Supplied Factory Installed Intake AIR Connection Supplied Installed Intake AIRRemove for Direct Vent Pipe FieldVertical Termination Installation Vertical Termination Direct Vent Vertical Terminations InstallationVertical Terminations Flat Roof Clearance Field Supplied STRAP/SUPPORTSidewall Termination Installation Sidewall Termination InstallationSDVVWKURXJKWKHZDOO OHDVWLQFKHV FP 6HHLJXUHConcentric Termination Flat Roof Clearance Concentric Termination InstallationQDWLRQDOFRGHVPXVWEHPDLQWDLQHG VDPHORFDWLRQInch Concentric Termination KIT Inch Concentric Termination InstallationThree Concentric Terminations TWO Concentric TerminationsFour Concentric Terminations Eight Concentric TerminationsTwo Concentric Terminations Multiple Concentric Termination ArrangementsEight Concentric Terminations JURXSVGHSHQGLQJRQDYDLODEOHVSDFHVenting Arrangements Power Vent HorizontalDirect Vent Horizontal Direct Vent Horizontal Vent Vertical Intake Direct Vent Vertical Vent Horizontal IntakeDirect Vent Horizontal Concentric Power Vent Termination Clearances Sidewall Power VentDirect Vent Termination Clearances Sidewall Direct VentCondensate Drain Installation Water Heater InstallationInstallation Notes Installation InstructionsGAS Line Sizing Supply GAS Line InstallationSupply GAS Line Sizing U. S. Units Supply GAS Line Sizing Metric UnitsPurging GAS Line Leak TestingGAS Line Connection Power Supply Connections Electrical WiringENABLE/DISABLE Circuit Connecting An External Supervisory ControlWater Line Connections Valve Discharge Pipe Water Piping DiagramsThermometers not Supplied Water Potable Heating and Space HeatingHigh Temperature Limit Control ECO Temperature RegulationHigh Temperature Applications Thermostat ControlOverview Control System OperationControl System Navigation Menu HelpIcon Description Status IconsState Description Operating StatesControl System Menus Menu DescriptionUpdate Cancel User Settings & Control System MenusBack Help Change Back Help Day 0 hrs 0 mins Elapsed TimeBurner On Time Hrs 22 minsView Back Help Back AdvancedECO YesnoSelect Back Help UpdateName Your Company Name HerePrior to Start UP Start UPInitial Start UP GAS Valve TOP View GAS Valve / Venturi Assembly TOP ViewGAS Valve Side View GAS Valve TOP Detail ViewMultiple Water Heater Installations Supply GAS Pressure AdjustmentManifold GAS Pressure Adjustment PDQXDOIRUIXUWKHUDVVLVWDQFH‡  VHFRQGVLQRQHKRXU Checking the Firing Rate High Altitude InstallationsTo Turn OFF GAS FLUFXPVWDQFHVLighting the Water Heater On/Off SwitchLighting & Operation Labels DQGRSHUDWLQJWKHZDWHUKHDWHUDo not TRY to Light the Burner by Hand Tank Temperature 103F Operating Set Point 120FMenu Help Installation Checklist Sequence of Operation TroubleshootingYES no Sequence of Operation Flow ChartInstallation Errors Operational ProblemsRough STARTING, Rough Operation Momentary IgnitionFault and Alert Conditions Back Advanced Possible Causes CHECK/REPAIR Displayed FAULT/ALERT MessageHeater Information menu see Heater Information on No Anode Voltage Blower Prover FailureGeneral Maintenance Schedule MaintenanceDraining and Flushing Sediment Removal Filling the Water HeaterLime Scale Removal Manual Lime Scale RemovalDrain Valve and Access Panels Powered Anode RodsTEMPERATURE-PRESSURE Relief Valve Test Vent SystemS1 Dipswitch DiagramsCCB Central Control Board Layout Changing Number of Ignition Trials Before Lock OUTTransformer 50VA HCG3 120 & 150 Wiring DiagramON/OFF Ground VAC Neutral VAC HOT11 on J6 Plug HCG3 199 & 250 Wiring DiagramGround Strip Burner Ground Inside CCB Burner Bolt Enclosure Circulation Pump Wiring Diagrams Line Temperature Control HOT Water Return Water Piping DiagramsHOT Water Outlet Pipe T&P to Open Drain Finished Floor Cold Water Supply Expansion Tank6HHDWHU/LQH&RQQHFWLRQVRQSDJH 6HH&ORVHG6\VWHPVDQG7KHUPDOSDQVLRQRQSDJHHIRUHLQVWDOODWLRQRIZDWHUSLSLQJUHYLHZWKHIROORZLQJ 6HH0LLQJ9DOYHVRQSDJHHOT Water Outlet Storage TankPipe T&P to Open Drain Finished Floor Storage Tanktemperature Water Piping Diagrams Open Drain HOT Water Return Cold Water Supply Expansion Tank HOT Water Outlet Pipe T&P to Open Drain Finished Floor Temperature & PressureFull 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.
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