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Daikin FTXA20A User Manual

Daikin FTXA20A
192 pages
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Service manual
Split Stylish R32
FTXA20A(W)(S)(T)
FTXA20B(B)(S)(T)
FTXA25A(W)(S)(T)
FTXA25B(B)(S)(T)
FTXA35A(W)(S)(T)
FTXA35B(B)(S)(T)
FTXA42A(W)(S)(T)
FTXA42B(B)(S)(T)
FTXA50A(W)(S)(T)
FTXA50B(B)(S)(T)
RXA42A
RXA50A
RXA20A(9)
RXA25A(9)
RXA35A(9)
RXA42B
RXA50B

Table of Contents

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Daikin FTXA20A Specifications

General IconGeneral
Cooling Capacity2.0 kW
Heating Capacity2.5 kW
Weight (Indoor Unit)8.5 kg
Indoor Unit Weight8.5 kg
RefrigerantR32
Indoor Noise Level19 dBA (Quiet Operation)
Power Supply220-240V / 50Hz
Noise Level (Indoor)19 dB(A)

Summary

Disclaimer

Version Log

Troubleshooting

1.1 Error Code Handling

Procedures for displaying, resetting, and diagnosing error codes on the unit.

1.4 Test Run Procedure

Steps to perform a test run to verify unit functions and performance.

1.5 Error Based Troubleshooting

Troubleshooting steps for specific error codes indicating system malfunctions.

1.6 Symptom Based Troubleshooting

Diagnosing issues based on observed symptoms rather than specific error codes.

Components

2.1-2.3 Key Refrigerant Circuit Components

Checking and repair procedures for 4-way valve, compressor, and expansion valve.

2.7-2.9 Indoor Unit Assemblies and PCBs

Inspection and replacement of indoor unit motors, sensors, and PCBs.

2.11-2.13 Outdoor Unit Components and PCBs

Checking and replacement of outdoor unit components including inverter and main PCBs.

2.15-2.19 Sensors, Motors, and Minor Components

Procedures for checking reactors, streamer units, flap motors, and thermistors.

Third Party Components

3.1 Electrical Circuit Checks

Verifying power supply and wiring integrity for the unit's electrical system.

3.2 Refrigerant Circuit Checks

Procedures to check refrigerant circuit for clogs, charge, and non-condensables.

3.3 External Factors Affecting Operation

Checking outdoor temperature and airflow obstructions as potential causes.

Maintenance

4.1 Outdoor Unit Heat Exchanger Cleaning

Instructions for cleaning the outdoor unit heat exchanger to ensure performance.

4.2 Indoor Unit Heat Exchanger Cleaning

Procedures for cleaning the indoor unit heat exchanger for optimal operation.

4.4 Air Filter Cleaning

Steps for cleaning and maintaining the unit's air filters for optimal airflow.

Technical Data

5.1 Detailed Information Setting Modes

Information on setting modes for indoor, outdoor units, and remote controller.

5.2 Wiring Diagrams

Schematic diagrams illustrating the electrical connections of indoor and outdoor units.

5.3 Piping Diagrams

Diagrams showing the refrigerant piping layout for different unit models.

5.4 Component Overviews

Visual identification of components within the indoor and outdoor units.

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