A.O. Smith 300A, 500A warranty Multiple Unit Installations

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MULTIPLE UNIT INSTALLATIONS

Proper installation of multiple water heaters assures water flow balance of all units. Without this balance, the full water heating and storage potential of the system cannot be achieved. Plus, the units with the higher water flow may have a shortened life.

Dimensions shown are for minimum space occupied by the water heaters assemblies.

Space for the venting system and unit servicing must be added.

Manifold Kits for multiple unit installations are not available from the manufacturer.

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Contents Cyclone Xi Model BTH 300A, 400A, 500A Foreword ROUGH-IN-DIMENSIONSFeatures Table of ContentsHorizontal Sidewall Venting Vertical Rooftop Venting Quick Installation TipsDishwashing Machine Requirement Water Temperature Setpoint Adjustment ProcedureHigh Limit Switch E.C.O Insulation Blankets Installation InstructionsCirculating Pump Required AbilityUnconfined Space ClearancesHard Water AIR RequirementsVenting Installation of Carbon Monoxide DetectorsCanadian Direct Vent US Horizontal Vent Direct Venting Direct Vent Terminal InstallationVent Pipe Termination Vertical Vent Terminal Installation Installation SequenceVent Length Table Installation of Vent SystemControls and Switches Connection of GAS Pipe GAS PipingHOT Surface Igniter System Connections Water Potable Heating and Space Heating Heater WiringBTH 300 Wiring Diagram BTH 400 and 500 Wiring Diagram Overview OperationElectronic Control Sequence of OperationAdjusting the Operating Set Point Example of a Warning Fault and Warning ConditionsChanging the Display Units Access to the Current Fault or Warning Example of a Fault Advanced Diagnostics InformationViewing Information About the Heater Viewing the Fault HistoryPrior to Start UP Required Ability Operating InstructionsOperating Instructions General Information MaintenanceLime Scale Removal FlushingDraining Sediment RemovalVent System Powered Anode SystemDrain Valve and Access Panels U T I O N if Building Installation DiagramsPage Must be Identical Heaters Pipe Relief Valve to Open Drain Page Multiple Unit Installations Troubleshooting Motor RUNS, Burner Lights Momentarily Then Locks OUT Motor will not RUNGAS Fails to Shut OFF Replacement PartsNoisy Burner Operation Model BTH Limited Warranty