Daikin CTXS35K2V1B User manual

Service

Manual

Inverter Multi for 2 Rooms

H-Series / G-Series

SiBE121123_A

[Applied Models]

O Inverter Multi : Heat Pump

SiBE121123_A

iTable of Contents

Inverter Multi for 2 Rooms

H-Series / G-Series

Heat Pump

Outdoor Unit Indoor Unit

2MXS40H2V1B FTXG25JV1BW(S)(A) FVXG25K2V1B

2MXS50H2V1B FTXG35JV1BW(S)(A) FVXG35K2V1B

FTXG50JV1BW(S)(A) FVXG50K2V1B

2MXS40H3V1B CTXS15K2V1B FVXS25FV1B

2MXS50H3V1B CTXS35K2V1B FVXS35FV1B

FTXS20K2V1B FVXS50FV1B

FTXS25K2V1B FLXS25BAVMB

FTXS35K2V1B FLXS35BAVMB

FTXS42K2V1B FLXS50BAVMB

FTXS50K2V1B FDXS25EAVMB

FTXS20J2V1B FDXS35EAVMB

FTXS25J2V1B FDXS50CVMB

FTXS35J2V1B FDXS25E7VMB

FTXS42J2V1B FDXS35E7VMB

FTXS50J2V1B FDXS50C7VMB

FTX20JV1B FFQ25B8V1B

FTX25JV1B FFQ35B8V1B

FTX35JV1B FFQ50B8V1B

FTX20J2V1B FFQ25B9V1B

FTX25J2V1B FFQ35B9V1B

FTX35J2V1B FFQ50B9V1B

2AMX40G2V1B ATXS20G2V1B

2AMX50G2V1B ATXS25G2V1B

ATXS35G2V1B

2AMX40G3V1B ATXS42G2V1B

2AMX50G3V1B ATXS50G2V1B

ATX20JV1B

ATX25JV1B

ATX35JV1B

ATX20J2V1B

ATX25J2V1B

ATX35J2V1B

SiBE121123_A

Table of Contents ii

1. Introduction ............................................................................................ vi

1.1 Safety Cautions ....................................................................................... vi

1.2 Used Icons ...............................................................................................x

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

1. Functions.................................................................................................2

Part 2 Specifications ..................................................................10

1. Indoor Unit.............................................................................................11

2. Outdoor Unit..........................................................................................27

Part 3 Printed Circuit Board Connector Wiring Diagram ........... 28

1. Indoor Unit.............................................................................................29

1.1 FTXG25/35/50JV1BW(S)(A) ..................................................................29

1.2 CTXS15/35K2V1B, FTXS20/25K2V1B ..................................................31

1.3 FTXS35/42/50K2V1B, FTXS20/25/35/42/50J2V1B,

ATXS20/25/35/42/50G2V1B ..................................................................33

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

ATX20/25/35J2V1B................................................................................35

1.5 FVXG25/35/50K2V1B ............................................................................37

1.6 FVXS25/35/50FV1B ...............................................................................39

1.7 FLXS25/35/50BAVMB............................................................................41

1.8 FDXS25/35EAVMB, FDXS25/35E7VMB, FDXS50CVMB,

FDXS50C7VMB .....................................................................................43

1.9 FFQ25/35/50B8V1B, FFQ25/35/50B9V1B.............................................45

2. Wired Remote Controller.......................................................................46

2.1 BRC1D528 .............................................................................................46

2.2 BRC1E51A7 ...........................................................................................47

3. Wireless Remote Controller ..................................................................48

3.1 BRC7E530W ..........................................................................................48

4. Outdoor Unit..........................................................................................49

Part 4 Function and Control........................................................ 51

1. Function of RA Indoor Unit....................................................................52

1.1 Temperature Control ..............................................................................52

1.2 Frequency Principle................................................................................52

1.3 Operation Starting Control......................................................................54

1.4 Airflow Direction Control.........................................................................55

1.5 Fan Speed Control for Indoor Unit .........................................................58

1.6 RADIANT Operation...............................................................................60

1.7 Program Dry Operation ..........................................................................62

1.8 Automatic Operation...............................................................................63

1.9 Thermostat Control.................................................................................64

1.10 NIGHT SET Mode ..................................................................................65

1.11 ECONO Operation .................................................................................66

1.12 HOME LEAVE Operation .......................................................................67

1.13 2-Area INTELLIGENT EYE Operation ...................................................69

1.14 INTELLIGENT EYE Operation ...............................................................71

1.15 Inverter POWERFUL Operation .............................................................72

SiBE121123_A

iii Table of Contents

1.16 Multi-Colored Indicator Lamp / TIMER Lamp .........................................73

1.17 Brightness Setting of Indoor Unit Display...............................................74

1.18 Clock Setting ..........................................................................................75

1.19 WEEKLY TIMER Operation ...................................................................76

1.20 Other Functions......................................................................................82

2. Function of SA Indoor Unit ....................................................................83

2.1 Drain Pump Control................................................................................83

2.2 Thermostat Sensor in Remote Controller...............................................85

2.3 Freeze Prevention Control .....................................................................87

2.4 Hot Start Control (In Heating Operation Only)........................................88

3. Function of Thermistor ..........................................................................89

4. Control Specification .............................................................................91

4.1 Mode Hierarchy ......................................................................................91

4.2 Frequency Control..................................................................................92

4.3 Controls at Mode Changing / Start-up....................................................94

4.4 Discharge Pipe Temperature Control.....................................................95

4.5 Input Current Control..............................................................................96

4.6 Freeze-up Protection Control .................................................................96

4.7 Heating Peak-cut Control .......................................................................97

4.8 Outdoor Fan Control...............................................................................98

4.9 Liquid Compression Protection Function................................................98

4.10 Defrost Control .......................................................................................99

4.11 Outdoor Electronic Expansion Valve Control .......................................100

4.12 Malfunctions .........................................................................................104

Part 5 Remote Controller .......................................................... 106

1. RA Indoor Unit.....................................................................................107

1.1 FTXG25/35/50JV1BW(S)(A), CTXS15/35K2V1B,

FTXS20/25K2V1B ................................................................................107

1.2 FTXS35/42/50K2V1B ...........................................................................109

1.3 FTXS20/25/35/42/50J2V1B..................................................................111

1.4 ATXS20/25/35/42/50G2V1B ................................................................113

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

ATX20/25/35J2V1B..............................................................................115

1.6 FVXG25/35/50K2V1B ..........................................................................117

1.7 FVXS25/35/50FV1B .............................................................................119

1.8 FLXS25/35/50BAVMB..........................................................................121

1.9 FDXS25/35EAVMB, FDXS25/35E7VMB, FDXS50CVMB,

FDXS50C7VMB ...................................................................................123

2. SA Indoor Unit.....................................................................................125

2.1 BRC1D528 ...........................................................................................125

2.2 BRC1E51A7 .........................................................................................128

2.3 BRC7E530W ........................................................................................133

Part 6 Service Diagnosis...........................................................134

1. Troubleshooting with LED ...................................................................136

1.1 Indoor Unit............................................................................................136

1.2 Outdoor Unit .........................................................................................137

2. Problem Symptoms and Measures .....................................................138

3. Service Check Function ......................................................................139

SiBE121123_A

Table of Contents iv

3.1 RA Indoor Unit......................................................................................139

3.2 SA Indoor Unit ......................................................................................148

4. Code Indication on Remote Controller ................................................155

4.1 RA Indoor Unit......................................................................................155

4.2 SA Indoor Unit ......................................................................................155

4.3 Outdoor Unit .........................................................................................156

5. Troubleshooting for RA Indoor Unit.....................................................157

5.1 Indoor Unit PCB Abnormality ...............................................................157

5.2 Freeze-up Protection Control or Heating Peak-cut Control..................159

5.3 Fan Motor or Related Abnormality .......................................................161

5.4 Radiant Panel Temperature Rise, Indoor Electronic Expansion Valve

(Motor Operated Valve) Abnormality, Freeze-up Protection Control

(FVXG Series Only)..............................................................................165

5.5 Thermistor or Related Abnormality (RA Indoor Unit)............................167

5.6 Front Panel Open / Close Fault (FTXG Series Only) ...........................168

6. Troubleshooting for SA Indoor Unit.....................................................169

6.1 Indoor Unit PCB Abnormality ...............................................................169

6.2 Drain Level Control System Abnormality..............................................170

6.3 Fan Motor (AC Motor) or Related Abnormality.....................................171

6.4 Drain System Abnormality....................................................................172

6.5 Thermistor or Related Abnormality (SA Indoor Unit)............................173

6.6 Remote Controller Thermistor Abnormality ..........................................174

6.7 Signal Transmission Error

(between Indoor Unit and Remote Controller)......................................175

6.8 Signal Transmission Error

(between MAIN Remote Controller and SUB Remote Controller)........176

6.9 Field Setting Abnormality .....................................................................177

7. Troubleshooting for Outdoor Unit........................................................178

7.1 Refrigerant Shortage ............................................................................178

7.2 Low-voltage Detection or Over-voltage Detection................................180

7.3 Outdoor Unit PCB Abnormality or Signal Transmission Error ..............182

7.4 Unspecified Voltage (between Indoor Unit and Outdoor Unit) /

Anti-icing Control in Other Room..........................................................185

7.5 Anti-icing Control for Indoor Unit ..........................................................186

7.6 OL Activation (Compressor Overload) .................................................188

7.7 Compressor Lock .................................................................................190

7.8 DC Fan Lock ........................................................................................191

7.9 Input Overcurrent Detection .................................................................192

7.10 Discharge Pipe Temperature Control...................................................193

7.11 High Pressure Control in Cooling .........................................................194

7.12 Compressor Sensor System Abnormality ............................................195

7.13 Position Sensor Abnormality ................................................................196

7.14 DC Voltage / Current Sensor Abnormality............................................198

7.15 Thermistor or Related Abnormality (Outdoor Unit)...............................199

7.16 Electrical Box Temperature Rise..........................................................201

7.17 Radiation Fin Temperature Rise ..........................................................202

7.18 Output Overcurrent Detection ..............................................................204

8. Check ..................................................................................................206

8.1 Thermistor Resistance Check ..............................................................206

8.2 Fan Motor Connector Output Check ....................................................207

8.3 Hall IC Check .......................................................................................208

8.4 Indoor Electronic Expansion Valve Coil Check ....................................208

SiBE121123_A

vTable of Contents

8.5 Power Supply Waveforms Check.........................................................209

8.6 Outdoor Electronic Expansion Valve Check.........................................210

8.7 Four Way Valve Performance Check ...................................................211

8.8 Inverter Unit Refrigerant System Check...............................................211

8.9 Inverter Analyzer Check .......................................................................212

8.10 Rotating Pulse Input on the Outdoor Unit PCB Check .........................214

8.11 Installation Condition Check.................................................................215

8.12 Discharge Pressure Check...................................................................215

8.13 Outdoor Unit Fan System Check..........................................................216

8.14 Main Circuit Short Check......................................................................216

8.15 Power Module Check ...........................................................................217

Part 7 Trial Operation and Field Settings................................. 218

1. Pump Down Operation........................................................................219

2. Forced Cooling Operation ...................................................................220

3. Trial Operation ....................................................................................221

3.1 RA Indoor Unit - FTXG, FTXS, ATXS, FTX, ATX, FVXG, FVXS,

FLXS, FDXS Series..............................................................................221

3.2 SA Indoor Unit - FFQ Series ................................................................223

4. Field Settings ......................................................................................225

4.1 RA Indoor Unit - FTXG, FTXS, ATXS, FTX, ATX, FVXG, FVXS,

FLXS, FDXS Series..............................................................................225

4.2 SA Indoor Unit - FFQ Series ................................................................231

4.3 Outdoor Unit .........................................................................................239

5. Silicon Grease on Power Transistor / Diode Bridge............................240

Part 8 Appendix......................................................................... 241

1. Piping Diagrams..................................................................................242

1.1 Indoor Unit............................................................................................242

1.2 Outdoor Unit .........................................................................................246

2. Wiring Diagrams..................................................................................247

2.1 Indoor Unit............................................................................................247

2.2 Outdoor Unit .........................................................................................253

3. Removal Procedure (Booklet No.) ......................................................254

SiBE121123_A Introduction

vi

1. Introduction

1.1 Safety Cautions

Cautions and

Warnings

Be sure to read the following safety cautions before conducting repair work.

The caution items are classified into “ Warning” and “ Caution”. The “ Warning”

items are especially important since they can lead to death or serious injury if they are not

followed closely. The “ Caution” items can also lead to serious accidents under some

conditions if they are not followed. Therefore, be sure to observe all the safety caution items

described below.

About the pictograms

This symbol indicates the item for which caution must be exercised.

The pictogram shows the item to which attention must be paid.

This symbol indicates the prohibited action.

The prohibited item or action is shown in the illustration or near the symbol.

This symbol indicates the action that must be taken, or the instruction.

The instruction is shown in the illustration or near the symbol.

After the repair work is complete, be sure to conduct a test operation to ensure that the

equipment operates normally, and explain the cautions for operating the product to the

customer.

1.1.1 Cautions Regarding Safety of Workers

Warning

Be sure to disconnect the power cable plug from the plug socket before

disassembling the equipment for repair.

Working on the equipment that is connected to the power supply may cause an

electrical shock.

If it is necessary to supply power to the equipment to conduct the repair or

inspecting the circuits, do not touch any electrically charged sections of the

equipment.

If the refrigerant gas is discharged during the repair work, do not touch the

discharged refrigerant gas.

The refrigerant gas may cause frostbite.

When disconnecting the suction or discharge pipe of the compressor at the

welded section, evacuate the refrigerant gas completely at a well-ventilated

place first.

If there is gas remaining inside the compressor, the refrigerant gas or

refrigerating machine oil discharges when the pipe is disconnected, and it may

cause injury.

If the refrigerant gas leaks during the repair work, ventilate the area. The

refrigerant gas may generate toxic gases when it contacts flames.

The step-up capacitor supplies high-voltage electricity to the electrical

components of the outdoor unit.

Be sure to discharge the capacitor completely before conducting repair work.

A charged capacitor may cause an electrical shock.

Do not start or stop the air conditioner operation by plugging or unplugging the

power cable plug.

Plugging or unplugging the power cable plug to operate the equipment may

cause an electrical shock or fire.

Introduction SiBE121123_A

vii

Be sure to wear a safety helmet, gloves, and a safety belt when working at a

high place (more than 2 m). Insufficient safety measures may cause a fall

accident.

In case of R-410A refrigerant models, be sure to use pipes, flare nuts and tools

for the exclusive use of the R-410A refrigerant.

The use of materials for R-22 refrigerant models may cause a serious accident

such as a damage of refrigerant cycle as well as an equipment failure.

Warning

Caution

Do not repair the electrical components with wet hands.

Working on the equipment with wet hands may cause an electrical shock.

Do not clean the air conditioner by splashing water.

Washing the unit with water may cause an electrical shock.

Be sure to provide the grounding when repairing the equipment in a humid or

wet place, to avoid electrical shocks.

Be sure to turn off the power switch and unplug the power cable when cleaning

the equipment.

The internal fan rotates at a high speed, and may cause injury.

Be sure to conduct repair work with appropriate tools.

The use of inappropriate tools may cause injury.

Be sure to check that the refrigerating cycle section has cooled down enough

before conducting repair work.

Working on the unit when the refrigerating cycle section is hot may cause

burns.

Use the welder in a well-ventilated place.

Using the welder in an enclosed room may cause oxygen deficiency.

SiBE121123_A Introduction

viii

1.1.2 Cautions Regarding Safety of Users

Warning

Be sure to use parts listed in the service parts list of the applicable model and

appropriate tools to conduct repair work. Never attempt to modify the

equipment.

The use of inappropriate parts or tools may cause an electrical shock,

excessive heat generation or fire.

If the power cable and lead wires have scratches or deteriorated, be sure to

replace them.

Damaged cable and wires may cause an electrical shock, excessive heat

generation or fire.

Do not use a joined power cable or extension cable, or share the same power

outlet with other electrical appliances, since it may cause an electrical shock,

excessive heat generation or fire.

Be sure to use an exclusive power circuit for the equipment, and follow the local

technical standards related to the electrical equipment, the internal wiring

regulations, and the instruction manual for installation when conducting

electrical work.

Insufficient power circuit capacity and improper electrical work may cause an

electrical shock or fire.

Be sure to use the specified cable for wiring between the indoor and outdoor

units. Make the connections securely and route the cable properly so that there

is no force pulling the cable at the connection terminals.

Improper connections may cause excessive heat generation or fire.

When wiring between the indoor and outdoor units, make sure that the terminal

cover does not lift off or dismount because of the cable.

If the cover is not mounted properly, the terminal connection section may cause

an electrical shock, excessive heat generation or fire.

Do not damage or modify the power cable.

Damaged or modified power cable may cause an electrical shock or fire.

Placing heavy items on the power cable, and heating or pulling the power cable

may damage the cable.

Do not mix air or gas other than the specified refrigerant (R-410A / R-22) in the

refrigerant system.

If air enters the refrigerating system, an excessively high pressure results,

causing equipment damage and injury.

If the refrigerant gas leaks, be sure to locate the leaking point and repair it

before charging the refrigerant. After charging refrigerant, make sure that there

is no refrigerant leak.

If the leaking point cannot be located and the repair work must be stopped, be

sure to perform pump-down and close the service valve, to prevent the

refrigerant gas from leaking into the room. The refrigerant gas itself is

harmless, but it may generate toxic gases when it contacts flames, such as fan

and other heaters, stoves and ranges.

When relocating the equipment, make sure that the new installation site has

sufficient strength to withstand the weight of the equipment.

If the installation site does not have sufficient strength and if the installation

work is not conducted securely, the equipment may fall and cause injury.

Introduction SiBE121123_A

ix

Check to make sure that the power cable plug is not dirty or loose, then insert

the plug into a power outlet securely.

If the plug has dust or loose connection, it may cause an electrical shock or fire.

Be sure to install the product correctly by using the provided standard

installation frame.

Incorrect use of the installation frame and improper installation may cause the

equipment to fall, resulting in injury.

For unitary type

only

Be sure to install the product securely in the installation frame mounted on the

window frame.

If the unit is not securely mounted, it may fall and cause injury.

For unitary type

only

When replacing the coin battery in the remote controller, be sure to dispose of

the old battery to prevent children from swallowing it.

If a child swallows the coin battery, see a doctor immediately.

Warning

Caution

Installation of a leakage breaker is necessary in some cases depending on the

conditions of the installation site, to prevent electrical shocks.

Do not install the equipment in a place where there is a possibility of

combustible gas leaks.

If the combustible gas leaks and remains around the unit, it may cause a fire.

Check to see if the parts and wires are mounted and connected properly, and

if the connections at the soldered or crimped terminals are secure.

Improper installation and connections may cause excessive heat generation,

fire or an electrical shock.

If the installation platform or frame has corroded, replace it.

Corroded installation platform or frame may cause the unit to fall, resulting in

injury.

Check the grounding, and repair it if the equipment is not properly grounded.

Improper grounding may cause an electrical shock.

SiBE121123_A Introduction

x

1.2 Used Icons

Icons are used to attract the attention of the reader to specific information. The meaning of each

icon is described in the table below:

Be sure to measure the insulation resistance after the repair, and make sure

that the resistance is 1 MΩ or higher.

Faulty insulation may cause an electrical shock.

Be sure to check the drainage of the indoor unit after the repair.

Faulty drainage may cause the water to enter the room and wet the furniture

and floor.

Do not tilt the unit when removing it.

The water inside the unit may spill and wet the furniture and floor.

Be sure to install the packing and seal on the installation frame properly.

If the packing and seal are not installed properly, water may enter the room and

wet the furniture and floor.

For unitary type

only

Caution

Icon Type of

Information

Description

Note:

Note A “note” provides information that is not indispensable, but may

nevertheless be valuable to the reader, such as tips and tricks.

Caution

Caution A “caution” is used when there is danger that the reader, through

incorrect manipulation, may damage equipment, loose data, get

an unexpected result or has to restart (part of) a procedure.

Warning

Warning A “warning” is used when there is danger of personal injury.

Reference A “reference” guides the reader to other places in this binder or

in this manual, where he/she will find additional information on a

specific topic.

SiBE121123_A

1List of Functions

Part 1

List of Functions

1. Functions.................................................................................................2

SiBE121123_A Functions

List of Functions 2

1. Functions

Category Functions

FTXG25/35/50JV1BW(S)(A)

Category Functions

FTXG25/35/50JV1BW(S)(A)

Basic

Function

Inverter (with inverter power control) Health &

Clean

Air-purifying filter —

Operation limit for cooling (°CDB) — Photocatalytic deodorizing filter —

Operation limit for heating (°CWB) — Air-purifying filter with photocatalytic

deodorizing function —

PAM control — Titanium apatite photocatalytic

air-purifying filter 

Standby electricity saving —

Compressor Oval scroll compressor — Air filter (prefilter) 

Swing compressor — Wipe-clean flat panel 

Rotary compressor — Washable grille —

Reluctance DC motor — MOLD PROOF operation —

Comfortable

Airflow

Power-airflow flap — Good-sleep cooling operation —

Power-airflow dual flaps Timer WEEKLY TIMER operation 

Power-airflow diffuser — 24-hour ON/OFF TIMER 

Wide-angle louvers NIGHT SET mode 

Vertical auto-swing (up and down) Worry Free

“Reliability &

Durability”

Auto-restart (after power failure) 

Horizontal auto-swing (right and left) — Self-diagnosis (digital, LED) display 

3-D airflow — Wiring error check function —

COMFORT AIRFLOW operation Anti-corrosion treatment of outdoor heat

exchanger —

Comfort

Control

Auto fan speed 

Indoor unit quiet operation Flexibility Multi-split / split type compatible indoor unit 

NIGHT QUIET mode (automatic) —

OUTDOOR UNIT QUIET operation (manual) H/P, C/O compatible indoor unit —

INTELLIGENT EYE operation Flexible power supply correspondence —

2-area INTELLIGENT EYE operation — High ceiling application —

Quick warming function

(preheating operation) — Chargeless —

Hot-start function Either side drain (right or left) 

Automatic defrosting — Power selection —

Operation Automatic operation Remote

Control

5-room centralized controller (option) 

RADIANT operation — Remote control adaptor

(normal open pulse contact) (option) 

Program dry operation Remote control adaptor

(normal open contact) (option) 

Fan only DIII-NET compatible (adaptor) (option) 

Lifestyle

Convenience

New POWERFUL operation (non-inverter) — Remote

Controller

Wireless 

Inverter POWERFUL operation Wired (option) 

Priority-room setting —

COOL / HEAT mode lock —

HOME LEAVE operation —

ECONO operation 

Indoor unit [ON/OFF] button 

Signal receiving sign 

Multi-colored indicator lamp (multi-monitor

lamp) 

R/C with back light 

Temperature display —

Note:  : Holding Functions

— : No Functions

Functions SiBE121123_A

3List of Functions

Category Functions

CTXS15/35K2V1B

FTXS20/25K2V1B

FTXS35/42/50K2V1B

Category Functions

CTXS15/35K2V1B

FTXS20/25K2V1B

FTXS35/42/50K2V1B

Basic

Function

Inverter (with inverter power

control) 

Health &

Clean Air-purifying filter — — —

Operation limit for cooling (°CDB) — — — Photocatalytic deodorizing filter — — —

Operation limit for heating (°CWB) — — — Air-purifying filter with

photocatalytic deodorizing

function

———PAM control — — —

Standby electricity saving — — —

Compressor Oval scroll compressor — — — Titanium apatite photocatalytic

air-purifying filter 

Swing compressor — — —

Rotary compressor — — — Air filter (prefilter) 

Reluctance DC motor — — — Wipe-clean flat panel 

Comfortable

Airflow

Power-airflow flap 

— Washable grille — — —

Power-airflow dual Flaps — — MOLD PROOF operation — — —

Power-airflow diffuser — — — Good-sleep cooling operation — — —

Wide-angle louvers 

Timer WEEKLY TIMER operation 

Vertical auto-swing (up and down)  24-hour ON/OFF TIMER 

Horizontal auto-swing (right and

left) —— NIGHT SET mode 

Worry Free

“Reliability &

Durability”

Auto-restart (after power failure) 

3-D airflow — — Self-diagnosis (digital, LED)

display 

COMFORT AIRFLOW operation 

Comfort

Control

Auto fan speed  Wiring error check function — — —

Indoor unit quiet operation  Anti-corrosion treatment of

outdoor heat exchanger ———

NIGHT QUIET mode (automatic) — — 

OUTDOOR UNIT QUIET

operation (manual) 

Flexibility Multi-split / split type compatible

indoor unit —

INTELLIGENT EYE operation 

— H/P, C/O compatible indoor unit — — —

2-area INTELLIGENT EYE

operation —— Flexible power supply

correspondence ———

Quick warming function

(preheating operation) ——— High ceiling application — — —

Chargeless — — —

Hot-start function  Either side drain (right or left) 

Automatic defrosting — — — Power selection — — —

Operation Automatic operation 

Remote

Control 5-room centralized controller

(option) 

RADIANT operation — — —

Program dry operation  Remote control adaptor (normal

open pulse contact) (option) 

Fan only 

Lifestyle

Convenience

New POWERFUL operation (non-

inverter) ——— Remote control adaptor (normal

open contact) (option) 

Inverter POWERFUL operation  DIII-NET compatible (adaptor)

(option) 

Priority-room setting — — — Remote

Controller

Wireless 

COOL / HEAT mode lock — — — Wired (option) 

HOME LEAVE operation — — —

ECONO operation 

Indoor unit [ON/OFF] button 

Signal receiving sign 

Multi-colored indicator lamp

(multi-monitor lamp) ———

R/C with back light 

Temperature display — — —

Note:  : Holding Functions

— : No Functions

SiBE121123_A Functions

List of Functions 4

Category Functions

FTXS20/25/35/42/50J2V1B

ATXS20/25/35/42/50G2V1B

Category Functions

FTXS20/25/35/42/50J2V1B

ATXS20/25/35/42/50G2V1B

Basic

Function

Inverter (with inverter power control) 

Health &

Clean

Air-purifying filter — —

Operation limit for cooling (°CDB) — — Photocatalytic deodorizing filter — —

Operation limit for heating (°CWB) — — Air-purifying filter with photocatalytic

deodorizing function ——

PAM control — — Titanium apatite photocatalytic

air-purifying filter 

Standby electricity saving — —

Compressor Oval scroll compressor — — Air filter (prefilter) 

Swing compressor — — Wipe-clean flat panel 

Rotary compressor — — Washable grille — —

Reluctance DC motor — — MOLD PROOF operation — —

Comfortable

Airflow

Power-airflow flap — — Good-sleep cooling operation — —

Power-airflow dual flaps 

Timer WEEKLY TIMER operation 

Power-airflow diffuser — — 24-hour ON/OFF TIMER 

Wide-angle louvers  NIGHT SET mode 

Vertical auto-swing (up and down) 

Worry Free

“Reliability &

Durability”

Auto-restart (after power failure) 

Horizontal auto-swing (right and left)  Self-diagnosis (digital, LED) display 

3-D airflow  Wiring error check function — —

COMFORT AIRFLOW operation  Anti-corrosion treatment of outdoor heat

exchanger ——

Comfort

Control Auto fan speed 

Flexibility Multi-split / split type compatible indoor

unit 

Indoor unit quiet operation  H/P, C/O compatible indoor unit —

NIGHT QUIET mode (automatic) — — Flexible power supply correspondence — —

OUTDOOR UNIT QUIET operation

(manual)  High ceiling application — —

2-area INTELLIGENT EYE operation — Chargeless — —

INTELLIGENT EYE operation — Either side drain (right or left) 

Quick warming function

(preheating operation) — — Power selection — —

Hot-start function 

Remote

Control

5-room centralized controller (option) 

Automatic defrosting — — Remote control adaptor

(normal open pulse contact) (option) 

Operation Automatic operation  Remote control adaptor

(normal open contact) (option) 

RADIANT operation — — DIII-NET compatible (adaptor) (option) 

Program dry operation 

Remote

Controller

Wireless 

Fan only  Wired (option) 

Lifestyle

Convenience

New POWERFUL operation

(non-inverter) ——

Inverter POWERFUL operation 

Priority-room setting — —

COOL / HEAT mode lock — —

HOME LEAVE operation — —

ECONO operation 

Indoor unit [ON/OFF] button 

Signal receiving sign 

R/C with back light — —

Temperature display — —

Note:  : Holding Functions

— : No Functions

Functions SiBE121123_A

5List of Functions

Category Functions

FTX20/25/35JV1B

FTX20/25/35J2V1B

ATX20/25/35JV1B

ATX20/25/35J2V1B

Category Functions

FTX20/25/35JV1B

FTX20/25/35J2V1B

ATX20/25/35JV1B

ATX20/25/35J2V1B

Basic

Function

Inverter (with inverter power control) 

Health &

Clean

Air-purifying filter — —

Operation limit for cooling (°CDB) — — Photocatalytic deodorizing filter — —

Operation limit for heating (°CWB) — — Air-purifying filter with photocatalytic

deodorizing function ——

PAM control — — Titanium apatite photocatalytic

air-purifying filter 

Standby electricity saving — —

Compressor Oval scroll compressor — — Air filter (prefilter) 

Swing compressor — — Wipe-clean flat panel 

Rotary compressor — — Washable grille — —

Reluctance DC motor — — MOLD PROOF operation — —

Comfortable

Airflow

Power-airflow flap  Good-sleep cooling operation — —

Power-airflow dual flaps — — Timer WEEKLY TIMER operation — —

Power-airflow diffuser — — 24-hour ON/OFF TIMER 

Wide-angle louvers  NIGHT SET mode 

Vertical auto-swing (up and down) 

Worry Free

“Reliability &

Durability”

Auto-restart (after power failure) 

Horizontal auto-swing (right and left) — — Self-diagnosis (digital, LED) display 

3-D airflow — — Wiring error check function — —

COMFORT AIRFLOW operation  Anti-corrosion treatment of outdoor heat

exchanger ——

Comfort

Control Auto fan speed 

Flexibility Multi-split / split type compatible indoor

unit 

Indoor unit quiet operation  H/P, C/O compatible indoor unit — —

NIGHT QUIET mode (automatic) — — Flexible power supply correspondence — —

OUTDOOR UNIT QUIET operation

(manual) — — High ceiling application — —

2-area INTELLIGENT EYE operation — — Chargeless — —

INTELLIGENT EYE operation — — Either side drain (right or left) 

Quick warming function

(preheating operation) — — Power selection — —

Hot-start function 

Remote

Control

5-room centralized controller (option) — —

Automatic defrosting — — Remote control adaptor

(normal open pulse contact) (option) ——

Operation Automatic operation  Remote control adaptor

(normal open contact) (option) ——

RADIANT operation — — DIII-NET compatible (adaptor) (option) — —

Program dry operation 

Remote

Controller

Wireless 

Fan only  Wired (option) 

Lifestyle

Convenience

New POWERFUL operation

(non-inverter) ——

Inverter POWERFUL operation 

Priority-room setting — —

COOL / HEAT mode lock — —

HOME LEAVE operation — —

ECONO operation 

Indoor unit [ON/OFF] button 

Signal receiving sign 

R/C with back light — —

Temperature display — —

Note:  : Holding Functions

— : No Functions

SiBE121123_A Functions

List of Functions 6

Category Functions

FVXG25/35/50K2V1B

FVXS25/35/50FV1B

Category Functions

FVXG25/35/50K2V1B

FVXS25/35/50FV1B

Basic

Function

Inverter (with inverter power control) 

Health &

Clean

Air-purifying filter — —

Operation limit for cooling (°CDB) — — Photocatalytic deodorizing filter — —

Operation limit for heating (°CWB) — — Air-purifying filter with photocatalytic

deodorizing function ——

PAM control — — Titanium apatite photocatalytic

air-purifying filter 

Standby electricity saving — —

Compressor Oval scroll compressor — — Air filter (prefilter) 

Swing compressor — — Wipe-clean flat panel — 

Rotary compressor — — Washable grille — —

Reluctance DC motor — — MOLD PROOF operation — —

Comfortable

Airflow

Power-airflow flap — — Good-sleep cooling operation — —

Power-airflow dual flaps — — Timer WEEKLY TIMER operation 

Power-airflow diffuser — — 24-hour ON/OFF TIMER 

Wide-angle louvers  NIGHT SET mode 

Vertical auto-swing (up and down) 

Worry Free

“Reliability &

Durability”

Auto-restart (after power failure) 

Horizontal auto-swing (right and left) — — Self-diagnosis (digital, LED) display 

3-D airflow — — Wiring error check function — —

COMFORT AIRFLOW operation — — Anti-corrosion treatment of outdoor heat

exchanger ——

Comfort

Control Auto fan speed 

Flexibility Multi-split / split type compatible indoor

unit 

Indoor unit quiet operation  H/P, C/O compatible indoor unit — 

NIGHT QUIET mode (automatic) — — Flexible power supply correspondence — —

OUTDOOR UNIT QUIET operation

(manual)  High ceiling application — —

2-area INTELLIGENT EYE operation — — Chargeless — —

INTELLIGENT EYE operation — — Either side drain (right or left) — —

Quick warming function

(preheating operation) — — Power selection — —

Hot-start function 

Remote

Control

5-room centralized controller (option) 

Automatic defrosting — — Remote control adaptor

(normal open pulse contact) (option) 

Operation Automatic operation  Remote control adaptor

(normal open contact) (option) 

RADIANT operation — DIII-NET compatible (adaptor) (option) 

Program dry operation 

Remote

Controller

Wireless 

Fan only  Wired (option) —

Lifestyle

Convenience

New POWERFUL operation

(non-inverter) ——

Inverter POWERFUL operation 

Priority-room setting — —

COOL / HEAT mode lock — —

HOME LEAVE operation — —

ECONO operation 

Indoor unit [ON/OFF] button 

Signal receiving sign 

R/C with back light 

Temperature display — —

Note:  : Holding Functions

— : No Functions

Functions SiBE121123_A

7List of Functions

Category Functions

FLXS25/35/50BAVMB

FDXS25/35EAVMB, FDXS25/35E7VMB

FDXS50CVMB, FDXS50C7VMB

Category Functions

FLXS25/35/50BAVMB

FDXS25/35EAVMB, FDXS25/35E7VMB

FDXS50CVMB, FDXS50C7VMB

Basic

Function

Inverter (with inverter power control) 

Health &

Clean

Air-purifying filter —

Operation limit for cooling (°CDB) — — Photocatalytic deodorizing filter —

Operation limit for heating (°CWB) — — Air-purifying filter with photocatalytic

deodorizing function ——

PAM control — — Titanium apatite photocatalytic

air-purifying filter ——

Standby electricity saving — —

Compressor Oval scroll compressor — — Air filter (prefilter) 

Swing compressor — — Wipe-clean flat panel — —

Rotary compressor — — Washable grille — —

Reluctance DC motor — — MOLD PROOF operation — —

Comfortable

Airflow

Power-airflow flap — — Good-sleep cooling operation — —

Power-airflow dual flaps — — Timer WEEKLY TIMER operation — —

Power-airflow diffuser — — 24-hour ON/OFF TIMER 

Wide-angle louvers — — NIGHT SET mode 

Vertical auto-swing (up and down) — Worry Free

“Reliability &

Durability”

Auto-restart (after power failure) 

Horizontal auto-swing (right and left) — — Self-diagnosis (digital, LED) display 

3-D airflow — — Wiring error check function — —

COMFORT AIRFLOW operation — — Anti-corrosion treatment of outdoor heat

exchanger ——

Comfort

Control Auto fan speed 

Flexibility Multi-split / split type compatible indoor

unit 

Indoor unit quiet operation  H/P, C/O compatible indoor unit — —

NIGHT QUIET mode (automatic) — — Flexible power supply correspondence 

OUTDOOR UNIT QUIET operation

(manual)  High ceiling application — —

2-area INTELLIGENT EYE operation — — Chargeless — —

INTELLIGENT EYE operation — — Either side drain (right or left) — —

Quick warming function

(preheating operation) — — Power selection — —

Hot-start function 

Remote

Control

5-room centralized controller (option) 

Automatic defrosting — — Remote control adaptor

(normal open pulse contact) (option) 

Operation Automatic operation  Remote control adaptor

(normal open contact) (option) 

RADIANT operation — — DIII-NET compatible (adaptor) (option) 

Program dry operation 

Remote

Controller

Wireless 

Fan only  Wired (option) — 

Lifestyle

Convenience

New POWERFUL operation

(non-inverter) ——

Inverter POWERFUL operation 

Priority-room setting — —

COOL / HEAT mode lock — —

HOME LEAVE operation 

ECONO operation — —

Indoor unit [ON/OFF] button 

Signal receiving sign 

R/C with back light — —

Temperature display — —

Note:  : Holding Functions

— : No Functions

SiBE121123_A Functions

List of Functions 8

Category Functions

FFQ25/35/50B8V1B

FFQ25/35/50B9V1B

Category Functions

FFQ25/35/50B8V1B

FFQ25/35/50B9V1B

Basic

Function

Inverter (with inverter power control) Health &

Clean

Air-purifying filter —

Operation limit for cooling (°CDB) — Photocatalytic deodorizing filter —

Operation limit for heating (°CWB) — Air-purifying filter with photocatalytic

deodorizing function —

PAM control — Titanium apatite photocatalytic

air-purifying filter —

Standby electricity saving —

Compressor Oval scroll compressor — Longlife filter 

Swing compressor — Wipe-clean flat panel —

Rotary compressor — Washable grille 

Reluctance DC motor — Filter cleaning indicator 

Comfortable

Airflow

Power-airflow flap — MOLD PROOF operation —

Power-airflow dual flaps — Good-sleep cooling operation —

Power-airflow diffuser — Timer Schedule timer operation 

2

Wide-angle louvers — 72-hour ON/OFF TIMER 

1

Vertical auto-swing (up and down) NIGHT SET mode —

Horizontal auto-swing (right and left) — Worry Free

“Reliability &

Durability”

Auto-restart (after power failure) 

3-D airflow — Self-diagnosis (digital, LED) display 

COMFORT AIRFLOW operation — Wiring error check function —

Comfort

Control Auto fan speed — Anti-corrosion treatment of outdoor heat

exchanger —

Indoor unit quiet operation — Flexibility Multi-split / split type compatible indoor unit 

NIGHT QUIET mode (automatic) — H/P, C/O compatible indoor unit 

OUTDOOR UNIT QUIET operation (manual) — Flexible power supply correspondence —

2-area INTELLIGENT EYE operation — High ceiling application —

INTELLIGENT EYE operation — Chargeless —

Quick warming function

(preheating operation) — Either side drain (right or left) —

Hot-start function Power selection —

Automatic defrosting — Remote

Control

5-room centralized controller (option) —

Operation Automatic operation Remote control adaptor

(normal open pulse contact) (option) —

RADIANT operation — Remote control adaptor

(normal open contact) (option) —

Program dry operation DIII-NET compatible (adaptor) (option) 

Fan only Remote

Controller

Wireless (option) 

Lifestyle

Convenience

New POWERFUL operation

(non-inverter) — Wired (option) 

Inverter POWERFUL operation —

Priority-room setting —

COOL / HEAT mode lock —

HOME LEAVE operation —

ECONO operation —

Indoor unit [ON/OFF] button 

1

Signal receiving sign 

1

R/C with back light —

Temperature display —

Note:  : Holding Functions

— : No Functions

1:

2:

With wireless remote controller

With wired remote controller

Functions SiBE121123_A

9List of Functions

Category Functions

2MXS40/50H2V1B

2AMX40/50G2V1B

2MXS40/50H3V1B

2AMX40/50G3V1B

Category Functions

2MXS40/50H2V1B

2AMX40/50G2V1B

2MXS40/50H3V1B

2AMX40/50G3V1B

Basic

Function

Inverter (with inverter power control) 

Health &

Clean

Air-purifying filter — —

Operation limit for cooling (°CDB) 10

~ 46

10

~ 46 Photocatalytic deodorizing filter — —

Operation limit for heating (°CWB)

–15

~

15.5

–15

~

15.5

Air-purifying filter with photocatalytic

deodorizing function ——

PAM control  Titanium apatite photocatalytic

air-purifying filter ——

Standby electricity saving — —

Compressor Oval scroll compressor — — Longlife filter — —

Swing compressor  Wipe-clean flat panel — —

Rotary compressor — — Washable grille — —

Reluctance DC motor  Filter cleaning indicator — —

Comfortable

Airflow

Power-airflow flap — — MOLD PROOF operation — —

Power-airflow dual flaps — — Good-sleep cooling operation — —

Power-airflow diffuser — — Timer Schedule timer operation — —

Wide-angle louvers — — 72-hour ON/OFF TIMER — —

Vertical auto-swing (up and down) — — NIGHT SET mode — —

Horizontal auto-swing (right and left) — — Worry Free

“Reliability &

Durability”

Auto-restart (after power failure) — —

3-D airflow — — Self-diagnosis (digital, LED) display 

COMFORT AIRFLOW operation — — Wiring error check function — —

Comfort

Control Auto fan speed — — Anti-corrosion treatment of outdoor heat

exchanger 

Indoor unit quiet operation — — Flexibility Multi-split / split type compatible indoor

unit ——

NIGHT QUIET mode (automatic) — — H/P, C/O compatible indoor unit — —

OUTDOOR UNIT QUIET operation

(manual)  Flexible power supply correspondence — —

2-area INTELLIGENT EYE operation — — High ceiling application — —

INTELLIGENT EYE operation — — Chargeless 20 m 20 m

Quick warming function

(preheating operation)  Either side drain (right or left) — —

Hot-start function — — Power selection — —

Automatic defrosting 

Remote

Control

5-room centralized controller (option) — —

Operation Automatic operation — — Remote control adaptor

(normal open pulse contact) (option) ——

RADIANT operation — — Remote control adaptor

(normal open contact) (option) ——

Program dry operation — — DIII-NET compatible (adaptor) (option) — —

Fan only — — Remote

Controller

Wireless (option) — —

Lifestyle

Convenience

New POWERFUL operation

(non-inverter) — — Wired (option) — —

Inverter POWERFUL operation — —

Priority-room setting — —

COOL / HEAT mode lock — —

HOME LEAVE operation — —

ECONO operation — —

Indoor unit [ON/OFF] button — —

Signal receiving sign — —

R/C with back light — —

Temperature display — —

Note:  : Holding Functions

— : No Functions

1:

2:

With wireless remote controller

With wired remote controller

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Daikin CTXS35K2V1B User manual

Daikin CTXS35K2V1B User manual

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