User ManualTable of ContentsWARNINGS4Pay Attention to These Terms4GENERAL SAFETY5Time/Temperature Relationships in Scalds6RECEIVING EQUIPMENT6Model Identification6General Specifications7All Models (Approved)7Hot Water Supply Heaters7INSTALLATION7Installation Codes7Installation Base7Clearances8Specifications and Dimensions9Outdoor Water Heaters12Combustion Air (Indoor Units Only) Air for Combustion and Ventilation12Venting13Vent Piping17Vent Damper Installation18Plumbing20Flow Rates22Piping—Domestic Hot Water Supply Heaters23Piping Diagram—Type WH - Unitemp 80 System24Controls—General25Limit Controls26Electrical Connections27Location of Controls28START-U30PROCEDURES30Before Start-Up30General30Initial Start-Up - Pump and Motor30Intermittent Pilot System Checkout Procedure (S8600)32INSPECTIO32PROCEDURES32Burners32Controls32Inspection Procedures33ADDENDA: LOW NOx HEATERS Models 0181 to 040133Operation33Start-Up Procedure33Burner Adjustment34Visual Inspection34Electrical34High Gas Pressure Switch34Burner Tray Removal34Gas Valve Removal34Main Burner And Orifice Removal35Pilot Removal35Combustion Fan Removal35Troubleshooting36Mechanical37WIRING DIAGRAMS38Wiring Diagram—WH1 0181/026138Wiring Diagram—WH1 0331/04039Wiring Diagram—WH1 0841Wiring Diagram—WH1 2142Wiring Diagram—WH1 3043Troubleshooting—Pumps44SERVICE AN44MAINTENANCE44Tube Cleaning44Burner Tray Removal45Gas Valve Removal45Main Burner and Orifice Remova45High Limit or Tankstat Removal45Heat Exchanger Removal45Heat Exchanger Re-Assembly46Combustion Chamber Removal46Control Well Replacement46Tube Replacement46Cleaning Flue Gas Passageways47Size: 4.23 MBPages: 52Language: EnglishOpen manual