User Manuals: Daikin RX20J3V1B Mounted Heat Pump

Manuals and User Guides for Daikin RX20J3V1B Mounted Heat Pump. We have 1 Daikin RX20J3V1B Mounted Heat Pump manual available for free PDF download: Service Manual

Daikin RX20J3V1B Service Manual

Daikin RX20J3V1B Service Manual (116 pages)

Inverter Pair Wall Mounted Type J-Series

Brand: Daikin | Category: Heat Pump | Size: 2 MB

Table of Contents

Table of Contents
3
Introduction
6
- Safety Cautions
  6
- Used Icons
  11
Part 1 List of Functions
12
Functions
13
Part 2 Specifications
15
Specifications
16
Part 3 Printed Circuit Board Connector Wiring Diagram
24
Indoor Unit
25
Outdoor Unit
27
Part 4 Function and Control
29
Main Functions
30
- Temperature Control
  30
- Frequency Principle
  30
- Airflow Direction Control
  32
- Fan Speed Control for Indoor Unit
  33
- Program Dry Operation
  34
- Automatic Operation
  35
- Thermostat Control
  36
- NIGHT SET Mode
  37
- ECONO Operation
  37
- Inverter POWERFUL Operation
  38
- Clock Setting
  38
- Other Functions
  39
Function of Thermistor
40
Control Specification
41
- Mode Hierarchy
  41
- Frequency Control
  41
- Controls at Mode Changing / Start-Up
  43
- Discharge Pipe Temperature Control
  44
- Input Current Control
  45
- Freeze-Up Protection Control
  46
- Heating Peak-Cut Control
  46
- Outdoor Fan Control
  47
- Liquid Compression Protection Function
  47
- Defrost Control
  48
- Electronic Expansion Valve Control
  49
- Pressure Equalizing Control
  50
- Malfunctions
  52
Part 5 Remote Controller
53
Remote Controller
54
Mode Button
55
Part 6 Service Diagnosis
56
Troubleshooting with LED
57
- Indoor Unit
  57
- Outdoor Unit
  57
Problem Symptoms and Measures
58
Service Check Function
59
Troubleshooting
62
Check
96
- Thermistor Resistance Check
  96
- Fan Motor Connector Output Check
  97
- Power Supply Waveforms Check
  98
- Electronic Expansion Valve Check
  98
- Four Way Valve Performance Check
  99
- Inverter Units Refrigerant System Check
  99
- Inverter Analyzer Check
  100
- Rotation Pulse Check on the Outdoor Unit PCB
  101
- Installation Condition Check
  102
- Discharge Pressure Check
  102
- Outdoor Fan System Check
  103
- Main Circuit Short Check
  103
- Power Module Check
  104
Part 7 Tips for Servicing
105
Tips for Servicing
106
- Pump down Operation
  106
- Forced Cooling Operation
  106
Trial Operation
107
Field Settings
108
- When 2 Units Are Installed in 1 Room
  108
- Jumper Settings
  108
Silicon Grease on Power Transistor / Diode Bridge
109
Part 8 Appendix
110
Piping Diagrams
111
- Indoor Unit
  111
- Outdoor Unit
  112
Wiring Diagrams
113
- Indoor Unit
  113
- Outdoor Unit
  113
Removal Procedure (Booklet No.)
114
Revision History
115

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