Daikin Super multi nx ftxs20g2v1b User manual

SiENBE04-808_A

Service

Manual

Inverter Pair

Wall Mounted Type G-Series

[Applied Models]

Inverter Pair: Cooling only

Inverter Pair: Heat Pump

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SiENBE04-808_A

Service

Manual

Inverter Pair

Wall Mounted Type G-Series

[Applied Models]

Inverter Pair: Cooling only

Inverter Pair: Heat Pump

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SiENBE04-808_A

iTable of Contents

Inverter Pair

Wall Mounted Type

G-Series

zCooling Only

Indoor Units

FTXS20G2V1B

FTXS25G2V1B

FTXS35G2V1B

FTXS42G2V1B

FTXS50G2V1B

Outdoor Units

RKS20G2V1B RKS20G2V1B9

RKS25G2V1B RKS25G2V1B9

RKS35G2V1B RKS35G2V1B9

RKS42G2V1B

RKS50G2V1B

zHeat Pump

Indoor Units

FTXS20G2V1B ATXS20G2V1B

FTXS25G2V1B ATXS25G2V1B

FTXS35G2V1B ATXS35G2V1B

FTXS42G2V1B ATXS42G2V1B

FTXS50G2V1B ATXS50G2V1B

Outdoor Units

RXS20G2V1B RXS20G2V1B9 ARXS20G2V1B ARXS20G3V1B

RXS25G2V1B RXS25G2V1B9 ARXS25G2V1B ARXS25G3V1B

RXS35G2V1B RXS35G2V1B9 ARXS35G2V1B ARXS35G3V1B

RXS42G2V1B ARXS42G2V1B

RXS50G2V1B ARXS50G2V1B

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SiENBE04-808_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

1.1 Cooling Only.............................................................................................2

1.2 Heat Pump ...............................................................................................3

Part 2 Specifications .................................................................... 5

1. Specifications ..........................................................................................6

1.1 Cooling Only.............................................................................................6

1.2 Heat Pump ...............................................................................................9

Part 3 Printed Circuit Board Connector Wiring Diagram ........... 17

1. Printed Circuit Board Connector Wiring Diagram..................................18

1.1 Indoor Unit..............................................................................................18

1.2 Outdoor Unit ...........................................................................................21

Part 4 Function and Control........................................................ 29

1. Main Functions......................................................................................30

1.1 Frequency Principle................................................................................30

1.2 Airflow Direction Control.........................................................................32

1.3 Fan Speed Control for Indoor Units........................................................33

1.4 Program Dry Operation ..........................................................................34

1.5 Automatic Operation...............................................................................35

1.6 Thermostat Control.................................................................................36

1.7 NIGHT SET Mode ..................................................................................37

1.8 ECONO Operation .................................................................................38

1.9 2-Area INTELLIGENT EYE Operation ...................................................39

1.10 INTELLIGENT EYE Operation ...............................................................41

1.11 Inverter POWERFUL Operation.............................................................42

1.12 Other Functions......................................................................................43

2. Function of Thermistor ..........................................................................44

3. Control Specification .............................................................................45

3.1 Mode Hierarchy ......................................................................................45

3.2 Frequency Control..................................................................................46

3.3 Controls at Mode Changing / Start-up....................................................48

3.4 Discharge Pipe Temperature Control.....................................................50

3.5 Input Current Control..............................................................................51

3.6 Freeze-up Protection Control .................................................................53

3.7 Heating Peak-cut Control .......................................................................53

3.8 Outdoor Fan Control...............................................................................54

3.9 Liquid Compression Protection Function................................................54

3.10 Defrost Control .......................................................................................55

3.11 Electronic Expansion Valve Control .......................................................56

3.12 Malfunctions ...........................................................................................59

3.13 Forced Operation Mode .........................................................................60

3.14 Standby Electricity Saving......................................................................60

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SiENBE04-808_A

iii Table of Contents

Part 5 Operation Manual ............................................................. 61

1. System Configuration............................................................................62

2. FTXS20/25/35/42/50G2V1B .................................................................63

2.1 Auto Dry Cool Heat Fan Operation ........................................................64

2.2 Adjusting the Airflow Direction................................................................66

2.3 COMFORT AIRFLOW and INTELLIGENT EYE Operation....................68

2.4 POWERFUL Operation ..........................................................................71

2.5 OUTDOOR UNIT QUIET Operation.......................................................72

2.6 ECONO Operation .................................................................................73

2.7 TIMER Operation ...................................................................................74

2.8 WEEKLY TIMER Operation ...................................................................76

3. ATXS20/25/35/42/50G2V1B .................................................................81

3.1 Auto Dry Cool Heat Fan Operation ........................................................82

3.2 Adjusting the Airflow Direction................................................................84

3.3 COMFORT AIRFLOW Operation ...........................................................86

3.4 INTELLIGENT EYE Operation ...............................................................87

3.5 POWERFUL Operation ..........................................................................89

3.6 OUTDOOR UNIT QUIET Operation.......................................................90

3.7 ECONO Operation .................................................................................91

3.8 TIMER Operation ...................................................................................92

Part 6 Service Diagnosis............................................................. 94

1. Caution for Diagnosis............................................................................95

1.1 Troubleshooting with LED ......................................................................95

2. Problem Symptoms and Measures .......................................................96

3. Service Check Function ........................................................................97

3.1 ARC452 Series.......................................................................................97

3.2 ARC433 Series.....................................................................................100

4. Troubleshooting ..................................................................................103

4.1 Error Codes and Description ................................................................103

4.2 Indoor Unit PCB Abnormality ...............................................................104

4.3 Freeze-up Protection Control or Heating Peak-cut Control..................105

4.4 Fan Motor (DC Motor) or Related Abnormality.....................................107

4.5 Thermistor or Related Abnormality (Indoor Unit)..................................109

4.6 Signal Transmission Error (between Indoor Unit and Outdoor Unit) ....110

4.7 Unspecified Voltage (between Indoor Unit and Outdoor Unit) .............111

4.8 Outdoor Unit PCB Abnormality.............................................................112

4.9 OL Activation (Compressor Overload) .................................................114

4.10 Compressor Lock .................................................................................115

4.11 DC Fan Lock ........................................................................................116

4.12 Input Overcurrent Detection .................................................................117

4.13 Four Way Valve Abnormality................................................................118

4.14 Discharge Pipe Temperature Control...................................................120

4.15 High Pressure Control in Cooling .........................................................122

4.16 Compressor System Sensor Abnormality ............................................124

4.17 Position Sensor Abnormality ................................................................126

4.18 DC Voltage / Current Sensor Abnormality (20/25/35/42 Class) ...........129

4.19 CT or Related Abnormality (50 Class)..................................................130

4.20 Thermistor or Related Abnormality (Outdoor Unit)...............................132

4.21 Electrical Box Temperature Rise..........................................................134

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SiENBE04-808_A

Table of Contents iv

4.22 Radiation Fin Temperature Rise ..........................................................136

4.23 Output Overcurrent Detection ..............................................................138

4.24 Refrigerant Shortage ............................................................................140

4.25 Low-voltage Detection or Over-voltage Detection................................143

4.26 Signal Transmission Error on Outdoor Unit PCB

(50 Class Only)145

5. Check ..................................................................................................146

5.1 How to Check .......................................................................................146

Part 7 Removal Procedure154

1. Indoor Unit...........................................................................................155

1.1 Removal of Air Filter.............................................................................155

1.2 Removal of Front Panel........................................................................157

1.3 Removal of Front Grille ........................................................................159

1.4 Removal of Horizontal Blades / Vertical Blades ...................................162

1.5 Removal of Electrical Box ....................................................................165

1.6 Removal of PCB...................................................................................168

1.7 Removal of Indoor Heat Exchanger .....................................................173

1.8 Removal of Swing Motors ....................................................................176

1.9 Removal of Fan Motor..........................................................................180

2. Outdoor Unit - RK(X)S20-35G2V1B,

ARXS20-35G2V1B183

2.1 Removal of Outer Panels / Fan Motor..................................................183

2.2 Removal of Electrical Box ....................................................................192

2.3 Removal of Thermistors .......................................................................196

2.4 Removal of PCB...................................................................................198

2.5 Removal of Reactor / Partition Plate ....................................................201

2.6 Removal of Sound Blanket...................................................................203

2.7 Removal of Four Way Valve.................................................................204

2.8 Removal of Compressor.......................................................................207

3. Outdoor Unit - RK(X)S20-35G2V1B9,

ARXS20-35G3V1B209

3.1 Removal of Outer Panels / Fan Motor..................................................209

3.2 Removal of Electrical Box ....................................................................218

3.3 Removal of PCB...................................................................................221

3.4 Removal of Reactor / Partition Plate ....................................................229

3.5 Removal of Sound Blanket...................................................................231

3.6 Removal of Four Way Valve.................................................................233

3.7 Removal of Compressor.......................................................................236

4. Outdoor Unit - RK(X)S42G2V1B, ARXS42G2V1B .............................238

4.1 Removal of Outer Panels .....................................................................238

4.2 Removal of Electrical Box ....................................................................240

4.3 Removal of PCB...................................................................................245

4.4 Removal of Sound Blanket...................................................................250

4.5 Removal of Outdoor Fan / Fan Motor...................................................252

4.6 Removal of Thermistors .......................................................................255

4.7 Removal of Four Way Valve / Electronic Expansion Valve ..................256

4.8 Removal of Compressor.......................................................................259

5. Outdoor Unit - RK(X)S50G2V1B, ARXS50G2V1B .............................262

5.1 Removal of Outer Panels .....................................................................262

5.2 Removal of Outdoor Fan / Fan Motor...................................................266

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SiENBE04-808_A

vTable of Contents

5.3 Removal of Electrical Box ....................................................................270

5.4 Removal of PCB...................................................................................275

5.5 Removal of Sound Blanket / Thermistors.............................................278

5.6 Removal of Four Way Valve.................................................................280

5.7 Removal of Electronic Expansion Valve...............................................281

5.8 Removal of Compressor.......................................................................282

Part 8 Trial Operation and Field Settings................................. 286

1. Trial Operation ....................................................................................287

2. Field Settings ......................................................................................289

2.1 Model Type Setting ..............................................................................289

2.2 When 2 Units are Installed in 1 Room..................................................289

2.3 Standby Electricity Saving....................................................................290

2.4 Facility Setting Jumper and Switch (cooling at low outdoor temperature)..

291

2.5 Jumper and Switch Settings.................................................................292

3. Application of Silicon Grease to a Power Transistor and a Diode Bridge .

293

Part 9 Appendix......................................................................... 294

1. Piping Diagrams..................................................................................295

1.1 Indoor Unit............................................................................................295

1.2 Outdoor Unit .........................................................................................296

2. Wiring Diagrams..................................................................................300

2.1 Indoor Unit............................................................................................300

2.2 Outdoor Unit .........................................................................................300

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SiENBE04-808_A Introduction

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 shook.

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 a 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.

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Introduction SiENBE04-808_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 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.

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SiENBE04-808_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.

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Introduction SiENBE04-808_A

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 control, be sure to disposed 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.

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SiENBE04-808_A Introduction

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 MΩor 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.

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SiENBE04-808_A

1List of Functions

Part 1

List of Functions

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

1.1 Cooling Only.............................................................................................2

1.2 Heat Pump ...............................................................................................3

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SiENBE04-808_A Functions

List of Functions 2

1. Functions

1.1 Cooling Only

Category Functions

FTXS20/25/35/42G2V1B

RKS20/25/35/42G2V1B

RKS20/25/35G2V1B9

FTXS50G2V1B

RKS50G2V1B

Category Functions

FTXS20/25/35/42G2V1B

RKS20/25/35/42G2V1B

RKS20/25/35G2V1B9

FTXS50G2V1B

RKS50G2V1B

Basic

Function

Inverter

(with Inverter Power Control) {{

Health &

Clean Air-Purifying Filter — —

Operation Limit for Cooling (°CDB) –10

~46H–10

~46HPhotocatalytic Deodorizing Filter — —

Operation Limit for Heating (°CWB) — — Air-Purifying Filter with

Photocatalytic Deodorizing Function ——

PAM Control {{

Standby Electricity Saving {—Titanium Apatite Photocatalytic

Air-Purifying Filter {{

Compressor Oval Scroll Compressor — —

Swing Compressor {{ Air Filter (Prefilter) {{

Rotary Compressor — — Wipe-Clean Flat Panel {{

Reluctance DC Motor {{ Washable Grille — —

Comfortable

Airflow

Power-Airflow Flap — — MOLD PROOF Operation — —

Power-Airflow Dual Flaps {{ Good-Sleep Cooling Operation — —

Power-Airflow Diffuser — — Timer WEEKLY TIMER Operation {{

Wide-Angle Louvers {{ 24-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 — —

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 Voltage Correspondence — —

2-Area INTELLIGENT EYE Operation {{ High Ceiling Application — —

INTELLIGENT EYE Operation — — Chargeless 10 m 10 m

Quick Warming Function

(Preheating Operation) — — Either Side Drain (Right or Left) {{

Hot-Start Function — — Power Selection — —

Automatic Defrosting — — Remote

Control

5-Rooms Centralized Controller

(Option) {{

Operation Automatic Operation — — Remote Control Adapter

(Normal Open Pulse Contact)

(Option)

{{

Program Dry Operation {{

Fan Only {{ Remote Control Adapter

(Normal Open Contact) (Option) {{

Lifestyle

Convenience

New POWERFUL Operation

(Non-Inverter) —— DIII-NET Compatible (Adapter)

(Option) {{

Inverter POWERFUL Operation {{Remote

Control

Wireless {{

Priority-Room Setting — — Wired (Option) {{

COOL / HEAT Mode Lock — —

HOME LEAVE Operation — —

ECONO Operation {{

Indoor Unit ON/OFF Button {{

Signal Receiving Sign {{

Temperature Display — —

Note: {: Holding Functions

— : No Functions

H: Lower limit can be extended to –15°C by cutting

jumper (20-42 class) or turning switch (50 class).

(facility use only)

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Functions SiENBE04-808_A

3List of Functions

1.2 Heat Pump

Category Functions

FTXS20/25/35/42G2V1B

RXS20/25/35/42G2V1B

RXS20/25/35G2V1B9

FTXS50G2V1B

RXS50G2V1B

Category Functions

FTXS20/25/35/42G2V1B

RXS20/25/35/42G2V1B

RXS20/25/35G2V1B9

FTXS50G2V1B

RXS50G2V1B

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

~20

–15

~18

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 — —

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 Voltage Correspondence — —

OUTDOOR UNIT QUIET Operation

(Manual) {{ High Ceiling Application — —

2-Area INTELLIGENT EYE Operation {{ Chargeless 10 m 10 m

INTELLIGENT EYE Operation — — Either Side Drain (Right or Left) {{

Quick Warming Function

(Preheating Operation) {{ Power Selection — —

Hot-Start Function {{

Remote

Control

5-Rooms Centralized Controller

(Option) {{

Automatic Defrosting {{ Remote Control Adapter

(Normal Open Pulse Contact)

(Option)

{{

Operation Automatic Operation {{

Program Dry Operation {{ Remote Control Adapter

(Normal Open Contact) (Option) {{

Fan Only {{ DIII-NET Compatible (Adapter)

(Option) {{

Lifestyle

Convenience

New POWERFUL Operation

(Non-Inverter) ——

remote control 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 {{

Temperature Display — —

Note: {: Holding Functions

— : No Functions

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SiENBE04-808_A Functions

List of Functions 4

Category Functions

ATXS20/25/35/42G2V1B

ARXS20/25/35/42G2V1B

ARXS20/25/35G3V1B

ATXS50G2V1B

ARXS50G2V1B

Category Functions

ATXS20/25/35/42G2V1B

ARXS20/25/35/42G2V1B

ARXS20/25/35G3V1B

ATXS50G2V1B

ARXS50G2V1B

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

~20

–15

~18

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 — —

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 Voltage Correspondence — —

OUTDOOR UNIT QUIET Operation

(Manual) {{ High Ceiling Application — —

2-Area INTELLIGENT EYE Operation — — Chargeless 10 m 10 m

INTELLIGENT EYE Operation {{ Either Side Drain (Right or Left) {{

Quick Warming Function

(Preheating Operation) {{ Power Selection — —

Hot-Start Function {{Remote

Control 5-Rooms Centralized Controller

(Option) {{

Automatic Defrosting {{

Operation Automatic Operation {{ Remote Control Adapter

(Normal Open Pulse Contact)

(Option)

{{

Program Dry Operation {{

Fan Only {{ Remote Control Adapter

(Normal Open Contact) (Option) {{

Lifestyle

Convenience

New POWERFUL Operation

(Non-Inverter) —— DIII-NET Compatible (Adapter)

(Option) {{

Inverter POWERFUL Operation {{remote control Wireless {{

Priority-Room Setting — — Wired (Option) {{

COOL / HEAT Mode Lock — —

HOME LEAVE Operation — —

ECONO Operation {{

Indoor Unit ON/OFF Button {{

Signal Receiving Sign {{

Temperature Display — —

Note: {: Holding Functions

— : No Functions

SiENBE04-808_A.pdf 16 21/02/2011 13:19:54

SiENBE04-808_A

5Specifications

Part 2

Specifications

1. Specifications ..........................................................................................6

1.1 Cooling Only.............................................................................................6

1.2 Heat Pump ...............................................................................................9

SiENBE04-808_A.pdf 17 21/02/2011 13:19:54

SiENBE04-808_A Specifications

Specifications 6

1. Specifications

1.1 Cooling Only

50 Hz, 220 - 230 - 240 V

Note: The data are based on the conditions shown in the table below.

Models Indoor Units FTXS20G2V1B FTXS25G2V1B FTXS35G2V1B

Outdoor Units RKS20G2V1B RKS25G2V1B RKS35G2V1B

Capacity

Rated (Min. ~ Max.)

kW 2.0 (1.3 ~ 2.8) 2.5 (1.3 ~ 3.2) 3.5 (1.4 ~ 4.0)

Btu/h 6,800 (4,400 ~ 9,600) 8,500 (4,400 ~ 10,900) 11,900 (4,800 ~ 13,600)

kcal/h 1,720 (1,120 ~ 2,410) 2,150 (1,120 ~ 2,750) 3,010 (1,200 ~ 3,440)

Moisture Removal L/h 0.9 1.2 1.9

Running Current (Rated) A 2.8 - 2.7 - 2.5 3.2 - 3.0 - 2.9 4.4 - 4.2 - 4.0

Power Consumption

Rated (Min. ~ Max.) W 470 (320 ~ 910) 550 (320 ~ 810) 870 (350 ~ 1,190)

Power Factor % 76.3 - 75.7 - 78.3 78.1 - 79.7 - 79.0 89.9 - 90.1 - 90.6

COP (Rated) W/W 4.26 (4.06 ~ 3.08) 4.55 (4.06 ~ 3.95) 4.02 (4.00 ~ 3.36)

Piping

Connections

Liquid mm φ 6.4 φ 6.4 φ 6.4

Gas mm φ 9.5 φ 9.5 φ 9.5

Drain mm φ 18.0 φ 18.0 φ18.0

Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Both Liquid and Gas Pipes

Max. lnterunit Piping Length m 20 20 20

Max. lnterunit Height Difference m 15 15 15

Chargeless m 10 10 10

Amount of Additional Charge of

Refrigerant g/m202020

Indoor Units FTXS20G2V1B FTXS25G2V1B FTXS35G2V1B

Front Panel Color White White White

Airflow Rate m³/min

(cfm)

H 9.4 (332) 9.1 (321) 10.4 (367)

M 7.4 (262) 7.1 (252) 7.7 (270)

L 5.5 (193) 5.2 (182) 4.8 (170)

SL 4.0 (141) 3.7 (130) 3.5 (125)

Fan

Type Cross Flow Fan Cross Flow Fan Cross Flow Fan

Motor Output W 23 23 23

Speed Steps 5 Steps, Quiet, Auto 5 Steps, Quiet, Auto 5 Steps, Quiet, Auto

Air Direction Control Right, Left, Horizontal, Downward Right, Left, Horizontal, Downward Right, Left, Horizontal, Downward

Air Filter Removable / Washable / Mildew Proof Removable / Washable / Mildew Proof Removable / Washable / Mildew Proof

Running Current (Rated) A 0.09 - 0.08 - 0.08 0.09 - 0.08 - 0.08 0.12 - 0.12 - 0.11

Power Consumption (Rated) W 18 - 18 - 18 18 - 18 - 18 26 - 26 - 26

Power Factor % 90.9 - 97.8 - 93.8 90.9 - 97.8 - 93.8 98.5 - 94.2 - 98.5

Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control

Dimensions (H × W × D) mm 295 × 800 × 215 295 × 800 × 215 295 × 800 × 215

Packaged Dimensions (H × W × D) mm 274 × 870 × 366 274 × 870 × 366 274 × 870 × 366

Weight kg 9 9 10

Gross Weight kg 13 13 13

Operation

Sound H / M / L / SL dBA 38 / 32 / 25 / 22 38 / 32 / 25 / 22 42 / 34 / 26 / 23

Sound Power dBA 54 54 58

Outdoor Units RKS20G2V1B RKS25G2V1B RKS35G2V1B

Casing Color Ivory White Ivory White Ivory White

Compressor

Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type

Model 1YC23AFXD 1YC23AFXD 1YC23AFXD

Motor Output W 600 600 600

Refrigerant

Oil

Type FVC50K FVC50K FVC50K

Charge L 0.375 0.375 0.375

Refrigerant Type R-410A R-410A R-410A

Charge kg 0.80 1.00 1.20

Airflow Rate m³/min

(cfm)

H 36.2 (1,278) 33.5 (1,183) 36.0 (1,272)

SL 34.0 (1,201) 31.4 (1,109) 31.4 (1,109)

Fan Type Propeller Propeller Propeller

Motor Output W 50 50 50

Running Current (Rated) A 2.67 - 2.55 - 2.45 3.06 - 2.93 - 2.81 4.26 - 4.08 - 3.91

Power Consumption (Rated) W 452 - 452 - 452 532 - 532 - 532 844 - 844 - 844

Power Factor % 76.9 - 77.1 - 76.9 79.0 - 78.9 - 78.9 90.1 - 89.9 - 89.9

Starting Current A 2.8 3.2 4.4

Dimensions (H × W × D) mm 550 × 765 × 285 550 × 765 × 285 550 × 765 × 285

Packaged Dimensions (H × W × D) mm 612 × 906 × 364 612 × 906 × 364 612 × 906 × 364

Weight kg 32 34 34

Gross Weight kg 37 40 40

Operation

Sound H / SL dBA 46 / 43 46 / 43 48 / 44

Sound Power H dBA 61 61 63

Drawing No. 3D059727 3D059728 3D059729

Conversion Formulae

kcal/h = kW × 860

Btu/h = kW × 3412

cfm = m³/min × 35.3

Cooling Piping Length

Indoor ; 27°CDB / 19°CWB

Outdoor ; 35°CDB / 24°CWB 5 m

SiENBE04-808_A.pdf 18 21/02/2011 13:19:54

Specifications SiENBE04-808_A

7Specifications

50 Hz, 220 - 230 - 240 V

Note: The data are based on the conditions shown in the table below.

Models Indoor Units FTXS20G2V1B FTXS25G2V1B FTXS35G2V1B

Outdoor Units RKS20G2V1B9 RKS25G2V1B9 RKS35G2V1B9