American Water Heater STCE3-52/80/119 マニュアル

目次

• INTRODUCTION

  2
• ELECTRONIC CONTROLS

  41
• Qualifications

  2
• CCB - Central Control Board

  42
• Service Warning

  2
• CCB Socket & Wiring Terminal Identification

  43
• Tools Required

  3
• CCB Enable Disable Circuit(s) Test

  45
• INSTALLATION CONSIDERATIONS

  4
• Checking Power And Ground To The CCB

  46
• Closed Water Systems

  4
• UIM - User Interface Module

  47
• Thermal Expansion

  4
• ELECTRONIC CONTROL SYSTEM

  48
• Electrical Requirements

  5
• Control System Features

  48
• PRE SERVICE CHECKS

  6
• Control System Navigation

  48
• Wiring Connections

  6
• The Desktop Screen

  49
• Service Precautions

  5
• Status Icons

  50
• WATER HEATER CONSTRUCTION

  7
• Operating States

  51
• Surface Mount Control Models

  8
• Control System Menus

  51
• Electronic Control Models

  9
• Temperatures Menu

  52
• OPERATION & SERVICE

  10
• Temperature Settings

  53
• Principles of Electricity

  10
• Heater Status Menu

  54
• Single And Three Phase Power

  12
• Economy Mode Setup Menu

  55
• Checking Single Phase Power

  13
• Setpoint Adjustment Value

  56
• Checking Three Phase Power

  14
• Time Clock Settings

  57
• Phase Conversions - Surface Mount Control Models

  15
• Daily Operating Mode Settings

  58
• Phase Conversions - Electronic Control Models

  16
• Alarm Output Setup Menu

  59
• Fuses

  17
• Display Settings Menu

  60
• Surface Mount Thermostats

  18
• Heater Information Menu

  61
• Thermostat & ECO Test

  19
• Current Fault/Alert Menu

  62
• Heating Elements

  20
• Fault History Menu

  62
• Heating Element Construction

  20
• Fault Occurrence Menu

  62
• Heating Element Amperage Test

  23
• Restore Factory Defaults Menu

  63
• Heating Element Voltage Test

  24
• Factory Default User Settings

  63
• Heating Element Resistance & Ground Test

  25
• TROUBLESHOOTING

  64
• Replacing Heating Elements

  26
• Common Service Problems

  64
• Element Sensors

  27
• Surface Mount Control Models

  64
• Element Sensor Operation

  28
• Electronic Control Models

  65
• Contactors

  29
• Fault Conditions

  65
• Contactor Configurations

  30
• Alert Conditions

  65
• Contactor Inspection

  31
• Resetting The Control System

  65
• Contactor Coil Voltage - At Contactor

  32
• Control System Unresponsive

  65
• Contactor Coil Voltage - At CCB

  33
• UIM Display Is Blank

  65
• Transformers

  34
• UIM Is Inoperable

  66
• 120 VAC Control Circuit Transformer Wiring

  34
• Heating Cycle Disabled

  66
• 120 VAC Control Circuit Transformer Test

  35
• Fault & Alert Messages

  67
• 24 VAC Transformer Test

  36
• No Current Detected

  67
• Immersion Temperature Probes

  37
• Temp Probe Open

  68
• Temperature Sensor Resistance Test

  38
• Temp Probe Short

  68
• Temperature Sensor DC Voltage Test

  39
• Energy Cut Out (ECO)

  69
• ECO Continuity Test

  39
• ECO Voltage Test

  40