Bradford-White Corp B4 マニュアル

目次

• Introduction

  3
• Warranty

  3
• Technical Assistance

  3
• General Information

  4
• Field Assembly

  4
• Site Location

  5
• Installation Information

  5
• Outdoor Installation (U.S. only)

  5
• Flooring - Typical Installation

  6
• Combustion and Ventilation Air Supply

  6
• Outdoor Air Supply

  7
• Indoor Air Supply

  7
• Exhaust Fans or Vents

  7
• Venting of Combustion Products

  8
• General Information

  8
• Replacement of Existing Heater

  8
• Water Flow

  8
• Reversible Water Connections

  8
• Water Chemistry

  11
• Freeze Protection

  11
• Water Hardness

  11
• Pump Requirements

  11
• Pressure Buildup in Water System

  14
• Pressure Relief Valve

  14
• Water Pressure

  14
• Pump Installation

  14
• Storage Tank Installation

  15
• Cold Water Supply Lines

  15
• Gas Supply and Piping

  15
• General Instructions

  15
• Special Precautions for Propane Gas

  16
• Electrical Wiring

  16
• Water Heating Systems

  16
• Combined Space Heating

  16
• Normal Operating Sequence

  16
• Start-Up Procedure

  21
• Setting the Temperature Controls

  21
• Control:

  21
• 3.5 Hi-Limit Switch Checkout

  22
• 3.6 Shut-Down Procedure

  22
• Control:

  22
• (models with modulating gas valve)

  22
• General Instructions

  23
• 4.2 Replacement of Gas Controls

  23
• 4.3 Heat Exchanger

  25
• Inspecting the Heat Exchanger

  25
• Cleaning the Heat Exchanger

  25
• Gas Pressure Tests

  26
• Checking the Main Line Gas Pressure

  26
• Regulated Gas Pressure

  26
• Electrical Troubleshooting

  26
• Heater Does Not Come On

  27
• Testing the Transformer

  27
• Testing the Electrical Power Supply

  28
• Hi-Limit Switch

  28
• Testing the Flow Switch

  28
• (Flame roll-out switch)

  28
• Testing the Fuse

  29
• (for spark ignition)

  29
• Testing the High Voltage Ignition Lead

  29
• (for standing pilot)

  30
• (for automatic pilot)

  30
• Testing the Igniter Electrode

  30
• (for standing pilot)

  30
• Combined Space Heating/Potable (for spark ignition)

  30
• (for standing pilot)

  31
• Heater Will Not Shut Off

  31
• 5.2.17 On-Off Main Burner Cycling

  31
• Controls

  31