Daikin RXN35KEV1B User Manual

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Service

Manual

Inverter Pair

Wall Mounted Type K-Series

SiBE041102_A

[Applied Models]

O

Inverter Pair : Heat Pump

Table of Contents

Table of Contents3
Introduction6
- Safety Cautions6
- Used Icons10
Part 1 List of Functions11
Functions12
Part 2 Specifications13
Specifications14
Part 3 Printed Circuit Board Connector Wiring Diagram15
Indoor Unit16
Outdoor Unit18
Part 4 Function and Control19
Main Functions20
- Temperature Control20
- Frequency Principle20
- Airflow Direction Control22
- Fan Speed Control for Indoor Unit23
- Program Dry Operation24
- Automatic Operation25
- Thermostat Control26
- NIGHT SET Mode27
- ECONO Operation28
- Inverter POWERFUL Operation29
- Other Functions30
Function of Thermistor31
Control Specification32
- Mode Hierarchy32
- Frequency Control33
- Controls at Mode Changing / Start-Up35
- Discharge Pipe Temperature Control36
- Input Current Control37
- Freeze-Up Protection Control38
- Heating Peak-Cut Control38
- Outdoor Fan Control39
- Liquid Compression Protection Function39
- Defrost Control40
- Electronic Expansion Valve Control41
- Malfunctions44
Part 5 Operation Manual45
System Configuration46
Operation Manual47
- Remote Controller47
- AUTO·DRY·COOL·HEAT·FAN Operation48
- Adjusting the Airflow Direction50
- COMFORT AIRFLOW Operation52
- POWERFUL Operation53
- ECONO Operation54
- OFF TIMER Operation55
- ON TIMER Operation56
Part 6 Service Diagnosis57
Troubleshooting with LED58
- Indoor Unit58
- Outdoor Unit58
Problem Symptoms and Measures59
Service Check Function60
Troubleshooting63
- Error Codes and Description63
- Indoor Unit PCB Abnormality64
- Freeze-Up Protection Control or Heating Peak-Cut Control65
- Fan Motor (AC Motor) or Related Abnormality67
- Thermistor or Related Abnormality (Indoor Unit)69
- Signal Transmission Error (between Indoor Unit and Outdoor Unit)70
- Unspecified Voltage (between Indoor Unit and Outdoor Unit)72
- Outdoor Unit PCB Abnormality73
- OL Activation (Compressor Overload)74
- Compressor Lock75
- Input Overcurrent Detection76
- Four Way Valve Abnormality77
- Discharge Pipe Temperature Control79
- High Pressure Control in Cooling80
- Compressor System Sensor Abnormality81
- Position Sensor Abnormality82
- DC Voltage / Current Sensor Abnormality84
- Thermistor or Related Abnormality (Outdoor Unit)85
- Electrical Box Temperature Rise87
- Radiation Fin Temperature Rise89
- Output Overcurrent Detection91
- Refrigerant Shortage93
- Low-Voltage Detection or Over-Voltage Detection95
Check97
- Thermistor Resistance Check97
- Hall IC Check98
- Power Supply Waveforms Check98
- Electronic Expansion Valve Check99
- Four Way Valve Performance Check100
- Inverter Unit Refrigerant System Check100
- Inverter Checker" Check101
- Installation Condition Check102
- Discharge Pressure Check103
- Outdoor Fan System Check103
- Main Circuit Short Check104
- Power Module Check104
Part 7 Removal Procedure105
Indoor Unit106
- Removal of Air Filters106
- Removal of Horizontal Blade108
- Removal of Front Panel110
- Removal of Front Grille111
- Removal of Electrical Box / Vertical Blades112
- Removal of Swing Motor / Pcbs117
- Removal of Indoor Heat Exchanger121
- Removal of Fan Rotor / Fan Motor124
- Exchange of Drain Hose (Piping Direction)127
Outdoor Unit128
- Removal of Outer Panels128
- Removal of Outdoor Fan / Fan Motor130
- Removal of Electrical Box / PCB132
- Removal of Sound Blankets140
- Removal of Four Way Valve142
- Removal of Compressor145
Part 8 Trial Operation and Field Settings146
Pump down Operation147
Forced Cooling Operation148
Trial Operation149
Field Settings150
- When 2 Units Are Installed in 1 Room150
- Jumper Settings150
Application of Silicon Grease to a Power Transistor and a Diode Bridge151
Part 9 Appendix152
Piping Diagrams153
- Indoor Unit153
- Outdoor Unit154
Wiring Diagrams155
- Indoor Unit155
- Outdoor Unit156

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Daikin RXN35KEV1B Specifications

General

Brand	Daikin
Model	RXN35KEV1B
Category	Air Conditioner
Language	English

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