Tennessee Waltz Parkway, Ashland City, TN Phone | A.O. Smith 400

500 Tennessee Waltz Parkway, Ashland City, TN 37015

Phone: 800-433-2545

www.hotwater.com E-Mail: parts@hotwater.com

Image 48

A.O. Smith 400, 402, 401, 403, 405, 404 instruction manual Tennessee Waltz Parkway, Ashland City, TN Phone

Contents

Installation Operation Maintenance Limited Warranty Copper Boilers for Hydronic Heating HOT Water Supply DIMENSIONS/CAPACITIES Data Dimensional DataGAS and Electrical Requirement Dimensions Data for Outdoor Configuration Recovery Capacities Foreword FEATURES/CONTROLS Differential Pressure Switch Combustion AIR Blower Blocked Flue Pressure SwitchWater Flow Switch ON/OFF Switch Installation Instructions Safety Relief ValvesRequired Ability Location Installation Clearances Chemical Vapor CorrosionLevelling AIR Requirements Venting Horizontal Vent Installation System Installation Installation AS Boiler ReplacementINTAKE/EXHAUST Installation Requirements General Standard Vent Vertical Category Type B orEquivalent 16 40.6 cm Standard Vent Horizontal Category III StainlessSteel III Direct Vent Vertical Exhaust Configurations Direct Vent Vertical Category Direct Vent Horizontal Exhaust Configurations Direct Vent Horizontal CategoryStainless GAL. Steel Sealed Stainless GAL.STEEL Hydronic Installation Space Heating Applications Internal ContaminantsVAC System Controller Optional Tank Probe Installation Procedure GAS Connections Water Line ConnectionsHard Water Conditions Tank Probe Optional Single boiler with horizontal tank Single boiler with vertical tank Suggested Pipe Size For Multiple Gas Appliances Propane Gas Single Unit INSTALLATION, Suggested Pipe Size Wiring ConnectionsDistance from Meter BTU Input BTU/HR GAS 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 Operation Filling and Purging Water SystemPurging of GAS Line Inlet GAS Pressure For Your Safety Read Before Operating For Your Safety Read Before Operating Adjustments Risk of Scalds TemperatureSetting Degree Burns on Adult Skin Control System Air Pressure Sensors open condition indicates fault Gas Pressure Sensors open condition indicates faultWater Level Sensor open condition indicates fault CCB/FCB Indicator Lamps & Fuses CCB Ten Position Dipswitch Central Control Section SW1 CCB-SW2 FCB Eight-Position Dipswitch Operating Sequence Temperature Setpoints System Control Algorithm UIM Operating ProceduresStages 1 and 2 will turn on in sequence from 1 to UIM Screens Temperature Screen Status Displayed True Condition InputMenu Screen System Status Screen Description of FCB control states Operating Setpoint Adjustment Procedure High Limit Differential Setpoint Adjustment ProcedureOperating Differentialsetpoint Adjustment Procedure Fault Displayed Description Redled Lockout Hard Main Burners Tank Probe Tank Remote probe shorted or open Flashing Deliming Replacement Parts Tubecleaningprocedure Mechanical Removal of Deposits NEW Boiler Limited Warranty Conditions and Exceptions Tennessee Waltz Parkway, Ashland City, TN Phone