Daikin Sensira Series Service Manual page 5

Split r32

Table of Contents

FTXF20~71A + FTXF20~25B + FTXF20~42C + ATXF20~71A + ATXF20~42C

+ RXF20~71A + RXF20~60B + RXF20~42C + ARXF20~71A + ARXF20~42C

Split Sensira R32

ESIE18-12E - 2021.02

2.5.2

Repair procedures .......................................................................................................................................... 65

2.6

Indoor unit main PCB ...................................................................................................................................................... 67

2.6.1

Checking procedures ...................................................................................................................................... 67

2.6.2

Repair procedures .......................................................................................................................................... 69

2.7

Inverter PCB .................................................................................................................................................................... 72

2.7.1

Checking procedures ...................................................................................................................................... 72

2.7.2

Repair procedures .......................................................................................................................................... 74

2.8

Main PCB ......................................................................................................................................................................... 74

2.8.1

Class 20~42 units ............................................................................................................................................ 74

2.8.2

Class 50~71 units ............................................................................................................................................ 84

2.9

Outdoor unit fan motor .................................................................................................................................................. 92

2.9.1

Class 20~42 units ............................................................................................................................................ 92

2.9.2

Class 50~71 units ............................................................................................................................................ 96

2.10

Plate work ....................................................................................................................................................................... 101

2.10.1

Outdoor unit ................................................................................................................................................... 101

2.10.2

Indoor unit ...................................................................................................................................................... 107

2.11

Reactor ............................................................................................................................................................................ 111

2.11.1

Checking procedures ...................................................................................................................................... 111

2.11.2

Repair procedures .......................................................................................................................................... 114

2.12

Swing flap motor............................................................................................................................................................. 115

2.12.1

Checking procedures ...................................................................................................................................... 115

2.12.2

Repair procedures .......................................................................................................................................... 115

2.13

Thermistors ..................................................................................................................................................................... 117

2.13.1

Refrigerant side thermistors .......................................................................................................................... 117

2.13.2

Other thermistors........................................................................................................................................... 124

3 Third party components

3.1

Electrical circuit............................................................................................................................................................... 127

3.1.1

Checking procedures ...................................................................................................................................... 127

3.1.2

Repair procedures .......................................................................................................................................... 128

3.2

Refrigerant circuit ........................................................................................................................................................... 129

3.2.1

Checking procedures ...................................................................................................................................... 129

3.2.2

Repair procedures .......................................................................................................................................... 133

3.3

External factors ............................................................................................................................................................... 136

3.3.1

Checking procedures ...................................................................................................................................... 136

4 Maintenance

4.1

To clean the outdoor unit heat exchanger..................................................................................................................... 138

4.2

To clean the indoor unit heat exchanger ....................................................................................................................... 138

4.3

To clean the indoor unit heat exchanger in extreme condition .................................................................................... 138

4.4

To clean the air filters ..................................................................................................................................................... 139

5 Technical data

5.1

Detailed information setting mode ................................................................................................................................ 141

5.1.1

Detailed information setting mode: Indoor unit ........................................................................................... 141

5.1.2

Detailed information setting mode: Outdoor unit ........................................................................................ 141

5.1.3

Detailed information setting mode: Remote controller................................................................................ 141

5.2

Wiring diagram................................................................................................................................................................ 142

5.2.1

Wiring diagram: Indoor unit........................................................................................................................... 142

5.2.2

Wiring diagram: Outdoor unit........................................................................................................................ 145

5.3

Piping diagram ................................................................................................................................................................ 151

5.3.1

Piping diagram: Indoor unit............................................................................................................................ 151

5.3.2

Piping diagram: Outdoor unit......................................................................................................................... 155

5.4

Component overview...................................................................................................................................................... 161

5.4.1

Component overview: Indoor unit................................................................................................................. 161

5.4.2

Component overview: Outdoor unit.............................................................................................................. 162

5.5

Field information report ................................................................................................................................................. 163

5.6

Service tools .................................................................................................................................................................... 166

5.7

Field settings ................................................................................................................................................................... 167

5.7.1

Field settings: Indoor unit .............................................................................................................................. 167

5.7.2

Field settings: Outdoor unit ........................................................................................................................... 168

Table of contents

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138

141

Service manual

Table of Contents