ATX20J2V1BATX25J2V1BATX35J2V1BATX20J3V1BATX25J3V1BATX35J3V1BDAIKIN ROOM AIR CONDITIONERMODELSOperation Manual

Daikin Siesta ATX25J2V1B Operation Manual

Part 1 List of Functions ................................................................ 1

safety cautions

Part 1 List of Functions

Functions

Part 2 Specifications

Indoor Unit

specifications

floor standing type

duct connected type

ceiling mounted cassette type

Outdoor Unit

Part 3 Printed Circuit Board Connector Wiring Diagram

CTXS15/35K2V1B, FTXS20/25K2V1B

FTX20/25/35JV1B, FTX20/25/35J2V1B, ATX20/25/35JV1B ATX20/25/35J2V1B

FVXG25/35/50K2V1B

FVXS25/35/50FV1B

FLXS25/35/50BAVMB

FFQ25/35/50B8V1B, FFQ25/35/50B9V1B

Wired Remote Controller

BRC1E51A7

Wireless Remote Controller

Part 4 Function and Control

Function of RA Indoor Unit

Operation Starting Control

Airflow Direction Control

Fan Speed Control for Indoor Unit

RADIANT Operation

Program Dry Operation

Automatic Operation

Thermostat Control

NIGHT SET Mode

ECONO Operation

HOME LEAVE Operation

Area INTELLIGENT EYE Operation

INTELLIGENT EYE Operation

Inverter POWERFUL Operation

Multi-Colored Indicator Lamp / TIMER Lamp

Brightness Setting of Indoor Unit Display

Clock Setting

WEEKLY TIMER Operation

Other Functions

Function of SA Indoor Unit

remote controller

Thermostat Sensor in Remote Controller

Freeze Prevention Control

Hot Start Control (In Heating Operation Only)

Function of Thermistor

Control Specification

Frequency Control

Controls at Mode Changing / Start-up

Discharge Pipe Temperature Control

Input Current Control

Heating Peak-cut Control

Outdoor Fan Control

Defrost Control

Outdoor Electronic Expansion Valve Control

Malfunctions

Part 5 Remote Controller

RA Indoor Unit

mode button

FTXS35/42/50K2V1B

FTXS20/25/35/42/50J2V1B

ATXS20/25/35/42/50G2V1B

SA Indoor Unit

operation mode

BRC7E530W

Service Diagnosis

Part 6 Service Diagnosis

Troubleshooting with LED

Problem Symptoms and Measures

Service Check Function

arc452 series remote controller

arc433 series remote controller

Code Indication on Remote Controller

Troubleshooting for RA Indoor Unit

Freeze-up Protection Control or Heating Peak-cut Control

Fan Motor or Related Abnormality

Thermistor or Related Abnormality (RA Indoor Unit)

Front Panel Open / Close Fault (FTXG Series Only)

Troubleshooting for SA Indoor Unit

Drain Level Control System Abnormality

Fan Motor (AC Motor) or Related Abnormality

Drain System Abnormality

Thermistor or Related Abnormality (SA Indoor Unit)

ATX20J2V1B

Specifications

Main Functions

Freeze-up Protection Control

Electronic Expansion Valve Control

pressure equalizing control

Remote Controller

Troubleshooting

Indoor Unit PCB Abnormality

Fan Motor (DC Motor) or Related Abnormality

Thermistor or Related Abnormality (Indoor Unit)

Refrigerant Shortage

Low-voltage Detection or Over-voltage Detection

Signal Transmission Error (between Indoor Unit and Outdoor Unit)

Unspecified Voltage (between Indoor Unit and Outdoor Unit)

Outdoor Unit PCB Abnormality

OL Activation (Compressor Overload)

Compressor Lock

DC Fan Lock

Input Overcurrent Detection

Four Way Valve Abnormality

High Pressure Control in Cooling

Compressor System Sensor Abnormality

Position Sensor Abnormality

DC Voltage / Current Sensor Abnormality

Thermistor or Related Abnormality (Outdoor Unit)

Electrical Box Temperature Rise

Radiation Fin Temperature Rise

Output Overcurrent Detection

Check

Fan Motor Connector Output Check

Power Supply Waveforms Check

Four Way Valve Performance Check

Inverter Analyzer Check

Rotation Pulse Check on the Outdoor Unit PCB

Installation Condition Check

Outdoor Fan System Check

Power Module Check

Tips for Servicing

Trial Operation

Field Settings

Silicon Grease on Power Transistor / Diode Bridge

Part 8 Appendix

Piping Diagrams

Wiring Diagrams

Removal Procedure (Booklet No.)

revision history

operation manual

Safety precautions

installation site

Names of parts

outdoor unit

Preparation Before Operation

Operation

to change the airflow rate setting

Adjusting the Airflow Direction

POWERFUL Operation

TIMER Operation

To use/cancel ON TIMER operation

Care and Cleaning

air filter

before a long idle period

Trouble Shooting

check again

call the service shop immediately

fault diagnosis

indoor unit

Air Filters

Horizontal Blade

Front Panel

Front Grille

Electrical Box / Vertical Blades

Swing Motor / PCBs

Indoor Heat Exchanger

Fan Rotor / Fan Motor

ATX20J3V1B

ATX25J2V1B

ATX25J3V1B

ATX35J2V1B

ATX35J3V1B