A.O. Smith 404, 400, 402, 401, 403, 405 instruction manual FCB Flame Control Board Diagram

Page 29

Figure 18. FCB FLAME CONTROL BOARD Diagram

29

Image 29

Contents Copper Boilers for Hydronic Heating HOT Water Supply Installation Operation Maintenance Limited WarrantyGAS and Electrical Requirement DIMENSIONS/CAPACITIES DataDimensional Data Dimensions Data for Outdoor Configuration Foreword Recovery CapacitiesFEATURES/CONTROLS Blocked Flue Pressure Switch Differential Pressure Switch Combustion AIR BlowerWater Flow Switch ON/OFF SwitchSafety Relief Valves Installation InstructionsRequired Ability LocationChemical Vapor Corrosion Installation ClearancesLevelling AIR RequirementsVenting Horizontal Vent Installation Installation AS Boiler Replacement System InstallationINTAKE/EXHAUST Installation Requirements GeneralType B or Standard Vent Vertical CategoryEquivalent 16 40.6 cmIII Stainless Standard Vent Horizontal CategorySteel IIIDirect Vent Vertical Category Direct Vent Vertical Exhaust ConfigurationsDirect Vent Horizontal Category Direct Vent Horizontal Exhaust ConfigurationsStainless GAL. Steel Sealed Stainless GAL.STEELHydronic Installation VAC System Controller Optional Space Heating ApplicationsInternal Contaminants GAS Connections Water Line Connections Tank Probe Installation ProcedureHard Water Conditions Tank Probe OptionalSingle boiler with horizontal tank Single boiler with vertical tank Suggested Pipe Size For Multiple Gas Appliances Propane Gas Wiring Connections Single Unit INSTALLATION, Suggested Pipe SizeDistance from Meter BTU Input BTU/HRGAS 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 Filling and Purging Water System OperationPurging of GAS Line Inlet GAS PressureFor Your Safety Read Before Operating For Your Safety Read Before Operating Risk of Scalds Temperature AdjustmentsSetting Degree Burns on Adult Skin Control SystemGas Pressure Sensors open condition indicates fault Air Pressure Sensors open condition indicates faultWater Level Sensor open condition indicates fault CCB/FCB Indicator Lamps & FusesCCB-SW2 CCB Ten Position Dipswitch Central Control Section SW1Operating Sequence FCB Eight-Position DipswitchUIM Operating Procedures Temperature Setpoints System Control AlgorithmStages 1 and 2 will turn on in sequence from 1 to UIM ScreensStatus Displayed True Condition Input Temperature ScreenMenu Screen System Status ScreenDescription of FCB control states Operating Differentialsetpoint Adjustment Procedure Operating Setpoint Adjustment ProcedureHigh Limit Differential Setpoint 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