A.O. Smith 403, 400, 402, 401, 405, 404 instruction manual

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Contents Copper Boilers for Hydronic Heating HOT Water Supply Installation Operation Maintenance Limited WarrantyDIMENSIONS/CAPACITIES Data Dimensional DataGAS and Electrical Requirement Dimensions Data for Outdoor Configuration Foreword Recovery CapacitiesFEATURES/CONTROLS ON/OFF Switch Differential Pressure Switch Combustion AIR BlowerBlocked Flue Pressure Switch Water Flow SwitchLocation Installation InstructionsSafety Relief Valves Required AbilityAIR Requirements Installation ClearancesChemical Vapor Corrosion LevellingVenting Horizontal Vent Installation General System InstallationInstallation AS Boiler Replacement INTAKE/EXHAUST Installation Requirements16 40.6 cm Standard Vent Vertical CategoryType B or EquivalentIII Standard Vent Horizontal CategoryIII Stainless SteelDirect Vent Vertical Category Direct Vent Vertical Exhaust ConfigurationsStainless GAL.STEEL Direct Vent Horizontal Exhaust ConfigurationsDirect Vent Horizontal Category Stainless GAL. Steel SealedHydronic Installation Space Heating Applications Internal ContaminantsVAC System Controller Optional Tank Probe Optional Tank Probe Installation ProcedureGAS Connections Water Line Connections Hard Water ConditionsSingle boiler with horizontal tank Single boiler with vertical tank Suggested Pipe Size For Multiple Gas Appliances Propane Gas BTU/HR Single Unit INSTALLATION, Suggested Pipe SizeWiring Connections Distance from Meter BTU InputGAS Manifold Assembly Genesis GB/GW 1000-2500 Series 400 Wiring Diagram Page Genesis GB/GW 1000-2500 Series 400 Schematic Diagram Page CCB Central Control Board FCB Flame Control Board Diagram PDB Power Distribution Board Diagram Inlet GAS Pressure OperationFilling and Purging Water System Purging of GAS LineFor Your Safety Read Before Operating For Your Safety Read Before Operating Control System AdjustmentsRisk of Scalds Temperature Setting Degree Burns on Adult SkinCCB/FCB Indicator Lamps & Fuses Air Pressure Sensors open condition indicates faultGas Pressure Sensors open condition indicates fault Water Level Sensor open condition indicates faultCCB-SW2 CCB Ten Position Dipswitch Central Control Section SW1Operating Sequence FCB Eight-Position DipswitchUIM Screens Temperature Setpoints System Control AlgorithmUIM Operating Procedures Stages 1 and 2 will turn on in sequence from 1 toSystem Status Screen Temperature ScreenStatus Displayed True Condition Input Menu ScreenDescription of FCB control states Operating Setpoint Adjustment Procedure High Limit Differential Setpoint Adjustment ProcedureOperating Differentialsetpoint Adjustment Procedure Fault Displayed Description Redled Lockout Hard Tank Probe Tank Remote probe shorted or open Flashing Main BurnersDeliming Tubecleaningprocedure Mechanical Removal of Deposits Replacement PartsConditions and Exceptions NEW Boiler Limited WarrantyTennessee Waltz Parkway, Ashland City, TN Phone