Daikin ATXS50EV1B7 User Manual

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SiBE04 - 824

[Applied Models]

z Inverter Pair : Heat Pump

Inverter Pair

Wall Mounted Type E-Series

Table of Contents

Table of Contents3
Introduction6
- Safety Cautions6
- Used Icons10
Part 1 List of Functions12
List of Functions13
Part 2 Specifications14
Specifications15
Part 3 Printed Circuit Board Connector Wiring Diagram18
Printed Circuit Board Connector Wiring Diagram19
- Indoor Unit19
- Outdoor Unit21
Part 4 Function and Control26
Main Functions27
- Frequency Principle27
- Airflow Direction Control29
- Fan Speed Control for Indoor Units30
- Programme Dry Function31
- Automatic Operation32
- Thermostat Control33
- NIGHT SET Mode34
- ECONO Mode35
- Intelligent Eye36
- Inverter POWERFUL Operation38
- Other Functions39
Function of Thermistor41
Control Specification42
- Mode Hierarchy42
- Frequency Control43
- Controls at Mode Changing / Start-Up45
- Compressor Protection Function46
- Discharge Pipe Temperature Control47
- Input Current Control48
- Freeze-Up Protection Control49
- Heating Peak-Cut Control49
- Fan Control50
- Liquid Compression Protection Function 250
- Defrost Control51
- Electronic Expansion Valve Control52
- Malfunctions55
- Forced Operation Mode56
- Additional Function56
- Facility Setting Jumper (Cooling at Low Outdoor Temperature)57
Part 5 Operation Manual58
System Configuration59
Instruction60
- Safety Precautions60
  - Installation Site61
  - Electrical Work61
- Name of Parts62
- Remote Controller64
- Preparation before Operation65
- AUTO · DRY · COOL · HEAT · FAN Operation68
- Adjusting the Airflow Direction70
- POWERFUL Operation72
- OUTDOOR UNIT QUIET Operation73
- ECONO Operation74
- INTELLIGENT EYE Operation75
- TIMER Operation77
- Care and Cleaning79
  - Air Filter80
  - Before a Long Idle Period81
- Troubleshooting82
- Disposal Requirements84
Part 6 Service Diagnosis86
Caution for Diagnosis87
Problem Symptoms and Measures88
Service Check Function89
Troubleshooting92
- Error Codes and Description92
- Indoor Unit PCB Abnormality93
- Freeze-Up Protection Control or High Pressure Control94
- Fan Motor (DC Motor) or Related Abnormality96
- Thermistor or Related Abnormality (Indoor Unit)98
- Signal Transmission Error (between Indoor and Outdoor Unit)99
- Unspecified Voltage (between Indoor and Outdoor Units)101
- Outdoor Unit PCB Abnormality102
- OL Activation (Compressor Overload)104
- Compressor Lock105
- DC Fan Lock106
- Input over Current Detection107
- Four Way Valve Abnormality110
- Discharge Pipe Temperature Control112
- High Pressure Control in Cooling114
- Compressor System Sensor Abnormality116
- Position Sensor Abnormality119
- DC Voltage / Current Sensor Abnormality120
- CT or Related Abnormality121
- Thermistor or Related Abnormality (Outdoor Unit)123
- Electrical Box Temperature Rise125
- Radiation Fin Temperature Rise127
- Output over Current Detection131
- Insufficient Gas133
- Over-Voltage Detection137
- Signal Transmission Error (on Outdoor Unit PCB)138
Check139
- How to Check139
- Sibe04140
Part 7 Removal Procedure148
Indoor Unit149
- Removal of Air Filter149
- Removal of Front Panel151
- Removal of Front Grille153
- Removal of Front Panel153
- Removal of Horizontal Blades and Vertical Blades156
- Removal of Electrical Box159
- Removal of PCB162
- Removal of Drain Pan Unit168
- Removal of Fan Motor172
- Removal of Heat Exchanger174
- Removal of Fan Rotor177
- Removal of Heat Exchanger177
Outdoor Unit180
- Arxs 25/35 F180
- Arxs 50 E205
Part 8 Others228
Others229
- Test Run from the Remote Controller229
- Jumper Settings230
- Application of Silicon Grease to a Power Transistor and a Diode Bridge231
Part 9 Appendix232
Piping Diagrams233
- Indoor Units233
- Outdoor Units234
Wiring Diagrams235
- Indoor Units235
- Outdoor Units236
Index238

Other manuals for Daikin ATXS50EV1B7

Installation Manual15 pages

Questions and Answers:

G
Gabriel HillAug 20, 2025
Why is my Daikin ATXS50EV1B7 cooling/heating effect poor?
- C
  Cody GomezAug 20, 2025
  If your Daikin Air Conditioner isn't cooling or heating well, several factors could be the cause. First, check if the air filters are clean. Also, ensure that nothing is blocking the air inlet or outlet of either the indoor or outdoor units. Verify that the temperature setting is appropriate for your needs and that all windows and doors are properly closed. Finally, make sure the airflow rate and air direction are correctly set, and check whether the unit is set to INTELLIGENT EYE mode.
R
Robert HillAug 22, 2025
How to fix Daikin Air Conditioner that does not turn on?
- A
  Andrea WalshAug 22, 2025
  If your Daikin Air Conditioner isn't turning on and the OPERATION lamp is off, consider these potential causes: Check if a breaker has been turned OFF or if a fuse has blown. Verify that there isn’t a power failure in your area. Ensure that batteries are correctly installed in the remote controller. Finally, confirm that the timer setting is correct and not preventing the unit from starting.
J
Jessica OwensAug 25, 2025
Why does Daikin ATXS50EV1B7 Air Conditioner operation does not start soon?
- M
  Marie WardAug 25, 2025
  If the Daikin Air Conditioner operation does not start soon, you should wait for about 3 minutes.
S
sarayuAug 26, 2025
What to do if Daikin Air Conditioner indoor unit leaks water?
- K
  Krystal ScottAug 27, 2025
  If water leaks from the indoor unit of your Daikin Air Conditioner, turn the breaker OFF and call the service shop.
K
Kelsey DelgadoAug 28, 2025
What to do if Daikin ATXS50EV1B7 stops suddenly and OPERATION lamp flashes?
- M
  Maxwell GarciaAug 28, 2025
  If your Daikin Air Conditioner suddenly stops and the OPERATION lamp is flashing, it could be due to a few reasons. First, check if the air filters are clean. Also, make sure that there are no obstructions blocking the air inlet or outlet of the indoor and outdoor units. To resolve this, clean the air filters or remove any obstacles, then turn the breaker OFF and turn it back ON. After doing so, try operating the air conditioner using the remote controller.
A
alvinbryanAug 29, 2025
Why is my Daikin ATXS50EV1B7 remote not working?
- D
  Daniel HallAug 29, 2025
  If your Daikin Air Conditioner remote controller isn't displaying any signals, it's likely due to dying batteries or a malfunctioning remote. Replace all the batteries with new AAA alkaline batteries. If a reset button is available, press it after replacing the batteries.
B
Brian GonzalezSep 1, 2025
Why doesn't hot air flow out soon after starting Daikin ATXS50EV1B7 Air Conditioner heating operation?
- M
  Morgan WagnerSep 1, 2025
  If hot air doesn't flow out soon after starting the heating operation on your Daikin Air Conditioner, you should wait for 1 to 4 minutes.
J
Jonathan RoweSep 3, 2025
What to do if Daikin Air Conditioner safety breaker cuts off the operation frequently?
- E
  Eric JohnsonSep 3, 2025
  If the safety breaker, a fuse, or the earth leakage breaker frequently cuts off the operation of your Daikin Air Conditioner, turn the breaker OFF and call the service shop.
G
Gabriel RobertsSep 5, 2025
What to do if my Daikin ATXS50EV1B7 Air Conditioner has a burning smell?
- A
  Anna SmithSep 5, 2025
  If you notice a burning smell coming from your Daikin Air Conditioner, turn the breaker OFF and call the service shop.
H
Heather DavisSep 7, 2025
What to do if Daikin Air Conditioner stops suddenly and OPERATION lamp is on?
- E
  Eric AllenSep 7, 2025
  If your Daikin Air Conditioner stops suddenly and the OPERATION lamp is on, it might be due to a large voltage fluctuation causing the system to protect itself. The unit should automatically resume operation in about 3 minutes.

Daikin ATXS50EV1B7 Specifications

General

Brand	Daikin
Model	ATXS50EV1B7
Category	Air Conditioner
Language	English

Summary

Part 1 List of Functions

Part 2 Specifications

1. Specifications

Details technical specifications, capacities, dimensions, and performance data for the units.

Part 3 Printed Circuit Board Connector Wiring Diagram

1. Printed Circuit Board Connector Wiring Diagram

Part 4 Function and Control

1. Main Functions

Explains core operational features like frequency control, airflow, and mode operations.

Part 6 Service Diagnosis

1. Caution for Diagnosis

Provides warnings and guidance before starting diagnostic procedures on the unit.

2. Problem Symptoms and Measures

Lists common operational problems and their corresponding troubleshooting steps.

4. Troubleshooting

Provides detailed error codes, descriptions, and troubleshooting procedures for various faults.

Part 7 Removal Procedure

1. Indoor Unit

2. Outdoor Unit

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