A.O. Smith GAHH-50, GAHH-40, 315456-002 specification

NOTES

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A.O. Smith GAHH-50, GAHH-40, 315456-002 installation instructions

Contents

Residential GAS Water Heaters Table of Contents Safety Precautions Safe INSTALLATION, USE and Service Fire or Explosion Hazard GET to Know Your Water Heater GAS Models Typical Installation Unpacking the Water Heater Excessive Weight Hazard Installing Your GAS Water HeaterImportant Information About This Water Heater Consumer Information Site Location Location RequirementsCarbon Monoxide Poisoning Hazard State of California Clearances and Accessibility GAS Supply Gas Pressure TestingGas Requirements Gas Piping Gas Pipe Capacity Table Unconfined Space Combustion AIR & VentilationConfined Space Minimum Btuh Input All Air from Outdoors All Air from Inside the BuildingLouvers and Grilles Vent Pipe System Draft Hood Installation Vent Pipe Size Vent ConnectorsChimney Connection Vertical Exhaust Gas Vent Water System Piping Piping Installation Closed System/Thermal Expansion Temperature and Pressure Relief Valve Relief Valve and Pipe Insulation Temperature & Pressure Relief ValveCombination Space Heating/Potable Water System Discharge Line Wiring Diagram Solar InstallationElectrical Connections Important Information about this Water Heater Installation Checklist Operating Instructions Operating Your Water Heater Checking the Draft Water Heater OperationBurn Hazard Burner Flames Water Temperature RegulationEmergency Shut Down Operational Conditions Safety Shut-offCondensation Water Heater Sounds Powered Anode Operation Routine Preventive MaintenanceDraining and Flushing Replacement Parts Maintenance of Your Water HeaterRemoving the Manifold/Burner Assembly Removing the Burner from the Manifold/ Burner Assembly Cleaning the Combustion Chamber and Air Diverter Assembly Replacing the Flame Sense/Hot Surface igniter AssemblyReplacing the Manifold/Burner Assembly Removing the Gas Control Valve/Thermostat Removing and Replacing the Gas Control Valve/ThermostatReplacing the Gas Valve Troubleshooting Chart Pressurized Combustion Chamber System Operational Checklist Cont Control Display Status Problem Solution Control Display Troubleshooting Control Display Status Problem Solution FV-SENSE and Open Flashing YES Troubleshooting Flowchart Repair Parts Illustration Repair Parts List Listed Parts Kits and Illustrations Page Page Page Year Limited Residential GAS Warranty Important Information