Daikin GYEQ20AN Manuals

Daikin GYEQ20AN Manuals

Manuals and User Guides for Daikin GYEQ20AN. We have 1 Daikin GYEQ20AN manual available for free PDF download: Service Manual

Daikin GYEQ20AN Service Manual

Daikin GYEQ20AN Service Manual (245 pages)

Gas Heat Pump Air Conditioner Heat Recovery R-410A 50 Hz

Brand: Daikin | Category: Heat Pump | Size: 13.24 MB

Table of Contents

Part 1 General Information

12
- Table of Contents
  12
- 1 Model Names
  
  13
  - Indoor Units
    13
  - Outdoor Units
    14
  - BS Units
    14
  - Air Treatment Equipment
    14
- 2 External Appearance
  
  15
  - Indoor Units
    15
  - Outdoor Units
    16
  - BS Units
    16
  - Air Treatment Equipment
    16
- 3 Capacity Range
  
  17
  - Combination Ratio
    17
  - Indoor Unit Connection Capacity
    17
  - Heat Recovery Operation
    17
Part 2 Device Overview

18
- Model Naming
  19
- Unit Specifications
  20
- External Diagrams
  21
- Structural Diagrams
  23
- System Diagrams
  25
  - Refrigerant System Diagrams
    25
  - Cooling Water, Intake Air, Fuel and Engine Oil System Diagram
    34
- Sensor Mounting Positions
  36
  - Sensors Installed on the Engine
    36
  - Sensors Installed in the System
    37
- Electrical Wiring Diagrams
  38
- Installation Work Manual
  39
- Wiring Manual
  68
- Test Run Manual
  78
Control and Functionality Part 3

100
- 1 Control Overview
  
  101
  - Control and Functionality Part
    101
  - System Control Overview
    101
  - Startup Sequences
    104
  - Actuators
    106
  - Setting up and Rewiring the Outdoor Unit
    107
- 2 Outdoor Unit Control
  
  109
- 3 Actuator Control
  
  114
  - Electric Motor Operated Valve Control
    114
  - Pump Control
    118
  - Fan Control
    118
  - Heater Control
    118
  - Starter Control
    118
  - Compressor Clutch Control
    118
  - Ignition Timing Control
    119
Part 4 Troubleshooting

120
- 1 Troubleshooting the Outdoor Unit
  
  121
  - Error Codes
    121
  - How to Use the Checker on PCB
    124
  - RUN Mode
    126
  - STOP Mode
    132
  - Main Operations in Servicing
    136
- 2 Flow Charts for Troubleshooting
  
  139
  - Problems Without Error Codes
    139
  - Problems with Error Codes
    142
Part 5 Parts Inspection

180
Part 6 Replacement of Parts

213
- 1 Precautions to Take before Replacement
  
  214
  - Safety Precautions
    214
  - Safety Precautions for Replacement
    214
- 2 Replacement of Primary Parts
  
  215

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