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

NOTES

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Image 36

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

Contents

Residential GAS Water Heaters Table of Contents Safe INSTALLATION, USE and Service Safety Precautions Fire or Explosion Hazard Typical Installation GET to Know Your Water Heater GAS Models Installing Your GAS Water Heater Unpacking the Water Heater Excessive Weight HazardImportant Information About This Water Heater Consumer Information Location Requirements Site LocationCarbon Monoxide Poisoning Hazard Clearances and Accessibility State of California Gas Pressure Testing GAS SupplyGas Requirements Gas Piping Gas Pipe Capacity Table Combustion AIR & Ventilation Unconfined SpaceConfined Space Minimum Btuh Input All Air from Inside the Building All Air from OutdoorsLouvers and Grilles Draft Hood Installation Vent Pipe System Vent Connectors Vent Pipe SizeChimney Connection Vertical Exhaust Gas Vent Piping Installation Water System Piping Temperature and Pressure Relief Valve Closed System/Thermal Expansion Temperature & Pressure Relief Valve Relief Valve and Pipe InsulationCombination Space Heating/Potable Water System Discharge Line Solar Installation Wiring DiagramElectrical Connections Installation Checklist Important Information about this Water Heater Operating Your Water Heater Operating Instructions Water Heater Operation Checking the DraftBurn Hazard Water Temperature Regulation Burner FlamesEmergency Shut Down Safety Shut-off Operational ConditionsCondensation Water Heater Sounds Routine Preventive Maintenance Powered Anode OperationDraining and Flushing Maintenance of Your Water Heater Replacement PartsRemoving the Manifold/Burner Assembly Removing the Burner from the Manifold/ Burner Assembly Replacing the Flame Sense/Hot Surface igniter Assembly Cleaning the Combustion Chamber and Air Diverter AssemblyReplacing the Manifold/Burner Assembly Removing and Replacing the Gas Control Valve/Thermostat Removing the Gas Control Valve/ThermostatReplacing the Gas Valve Pressurized Combustion Chamber System Operational Checklist Troubleshooting Chart Cont Control Display Troubleshooting Control Display Status Problem Solution Control Display Status Problem Solution FV-SENSE and Open Flashing Troubleshooting Flowchart YES Repair Parts List Repair Parts Illustration Listed Parts Kits and Illustrations Page Page Page Limited Residential GAS Warranty Year Important Information