Canadian Direct Vent | A.O. Smith 300A, 500A guide

US DIRECT VENT

CAUTION

TO PREVENT EXHAUSTING PRODUCTS FROM CIRCULATING TO THE AIR INTAKE IN WINDY/COLD AREAS, THE MAXIMUM PRACTICAL DISTANCE BETWEEN THESE TWO TERMINALS IS RECOMMENDED.

CANADIAN DIRECT VENT

FIGURE 5.

Image 9

A.O. Smith 300A, 500A warranty Canadian Direct Vent

Contents

Cyclone Xi Model BTH 300A, 400A, 500A Foreword ROUGH-IN-DIMENSIONS Features Table of Contents Horizontal Sidewall Venting Vertical Rooftop Venting Quick Installation Tips Water Temperature Setpoint Adjustment Procedure High Limit Switch E.C.ODishwashing Machine Requirement Circulating Pump Installation InstructionsRequired Ability Insulation Blankets Hard Water ClearancesAIR Requirements Unconfined Space Venting Installation of Carbon Monoxide Detectors Canadian Direct Vent US Horizontal Vent Direct Vent Terminal Installation Vent Pipe TerminationDirect Venting Vertical Vent Terminal Installation Installation Sequence Vent Length Table Installation of Vent System Controls and Switches GAS Piping HOT Surface IgniterConnection of GAS Pipe System Connections Water Potable Heating and Space Heating Heater Wiring BTH 300 Wiring Diagram BTH 400 and 500 Wiring Diagram Electronic Control OperationSequence of Operation Overview Adjusting the Operating Set Point Fault and Warning Conditions Changing the Display UnitsExample of a Warning Access to the Current Fault or Warning Example of a Fault Advanced Diagnostics Information Viewing Information About the Heater Viewing the Fault History Prior to Start UP Required Ability Operating Instructions Operating Instructions General Information Maintenance Draining FlushingSediment Removal Lime Scale Removal Powered Anode System Drain Valve and Access PanelsVent System 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 RUN Replacement Parts Noisy Burner OperationGAS Fails to Shut OFF Model BTH Limited Warranty