A.O. Smith VB/VW-500 User Manuals

Table of Contents

• SAFE INSTALLATION, USE, AND SERVICE

  2
• GENERAL SAFETY

  3
• TABLE OF CONTENTS

  4
• Installation Requirements for the Commonwealth of Mass

  5
• Wiring Diagram

  6
• Schematic Diagram

  8
• Lighting and Operating Instructions

  9
• Water Temperature Regulation

  10
• Control System

  10
• Operating Sequence

  11
• UIM Operating Procedures

  12
• Operating Setpoint Adjustment Procedure

  14
• TROUBLESHOOTING IGNITION SYSTEM

  16
• Troubleshooting Gas Valve

  17
• PREVENTATIVE MAINTENANCE

  17
• Main Burners

  17
• Relief Valve

  18
• Combustion Air Filter

  18
• Blower Compartment

  18
• Burner Maintenance

  18
• Condensate Removal System

  18
• Venting Maintenance

  19
• Heat Exchanger Preventive Maintenance

  19
• Tube Cleaning Procedure

  19
• REPLACEMENT PARTS

  19
• LIMITED WARRANTY

  23