Benutzerhandbuch für National Products BW3

Inhaltsverzeichnis

• SAFETY CONSIDERATIONS

  2
• INTRODUCTION

  3
• BOILER RATINGS AND CAPACITIES

  3
• LOCATING THE BOILER

  4
• FRESH AIR FOR COMBUSTION

  5
• Boiler Located in Unconfined Space

  5
• Boiler Located in Confined Space

  5
• INSTALLATION—SYSTEM PIPING

  6
• For Use with Cooling Units

  7
• Low Design Water Temperature Systems (Below 140°F)

  7
• CHIMNEY AND VENT PIPE CONNECTION

  7
• Checking Chimney

  8
• Minimum Vent Pipe Clearance

  8
• Removing Existing Boiler from Common Venting System

  9
• OPTIONAL HORIZONTAL VENTING WITH POWER VENTER

  9
• GAS SUPPLY PIPING

  10
• Checking Gas Supply

  10
• Connecting Gas Piping

  10
• Checking Gas Piping

  11
• Electric Power Supply

  11
• Installing Thermostat

  11
• SEQUENCE OF OPERATION

  11
• ELECTRICAL WIRING

  12
• Wiring Diagram

  12
• EQUIPMENT AND OPTIONAL ACCESSORIES

  13
• Relief Valve

  13
• Expansion Tank (Optional)

  13
• Diaphragm-Type Expansion Tank (Optional)

  13
• Air-Eliminating Fitting (Air Purger) (Optional)

  13
• Main Air Vent for Downflow Systems or Diaphragm-Type Expansion Tank (Optional)

  13
• Automatic Fill Valve (Optional)

  13
• Drain Valve

  13
• Water Temperature Control

  13
• Circulating Pump

  14
• Blower (Draft Inducer)

  14
• Pressure Switch

  14
• Rollout Switch (Flame Rollout Safety Shutoff)

  14
• STARTING BOILER

  14
• How a Hot Water System Operates

  14
• Filling System with Water

  14
• FOR YOUR SAFETY READ BEFORE OPERATING

  14
• GAS VALVE OPERATING INSTRUCTIONS

  15
• CHECKING AND ADJUSTING

  16
• Gas Valve Safety Shutdown Test

  16
• Pilot Burner Adjustment

  16
• Main Burner Air Adjustment

  16
• Limit Controls Adjustment

  16
• Thermostat Heat Anticipator Adjustment

  16
• Safety Controls Check

  16
• MAINTAINING BOILER

  17
• Burners

  17
• Relief Valve

  17
• Expansion Tank

  17
• Boiler Flue Passages

  17
• Vent Pipe

  17
• Water System

  17
• Cleaning Boiler and Burners

  17
• Blower

  18
• SERVICE HINTS

  19
• REPAIR PARTS

  20