Daikin FTXS25D3VMW, FTXS25D3VMWL, FTXS35D3VMW, FTXS35D3VMWL, FTXS50D2V1W Service Manual

SiENBE18-621

E-Series

Service
Manual

[Applied Models]
!Super Multi Plus: Heat Pump

SiENBE18-621

Table of Contents i

SUPER MULTI PLUS

E-Series

!Heat Pump
Indoor Unit

FTXS20D3VMW(L) FDXS25CAVMB FLXS25BAVMB FFQ25B8V1B
FTXS25D3VMW(L) FDXS35CAVMB FLXS35BAVMB FFQ35B8V1B
FTXS35D3VMW(L) FDXS50CVMB FLXS50BAVMB FFQ50B8V1B
FTXS50D2V1W(L) FDXS60CVMB FLXS60BAVMB FFQ60B8V1B
FTXS20CAVMB FDXS25EAVMB FVXS25BAVMB FHQ35BVV1B
FTXS25CAVMB FDXS35EAVMB FVXS35BAVMB FHQ50BVV1B
FTXS35CAVMB FVXS50BAVMB FHQ60BVV1B
FTXS50EV1B
FTXS60EV1B
FTXS71EV1B
FTXS71BAVMB

Outdoor Unit

RMXS112E7V3B BPMKS967B2B
RMXS140E7V3B BPMKS967B3B
RMXS160E7V3B

SiENBE18-621

ii Table of Contents

1. Introduction ...........................................................................................vii

1.1 Safety Cautions......................................................................................vii

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

1. List of Functions......................................................................................2

Part 2 Specifications .................................................................... 9

1. Specifications........................................................................................10

1.1 Outdoor Units.........................................................................................10

1.2 BP Unit...................................................................................................11

1.3 Indoor Units............................................................................................12

Part 3 Printed Circuit Board Connector Wiring Diagram ........... 23

1. Printed Circuit Board Connector Wiring Diagram..................................24

1.1 Outdoor Unit RMXS 112/140/160 E7V3B ..............................................24

1.2 Branch Provider Unit..............................................................................29

1.3 Wall Mounted Type 20/25/35/50 Class - D Series .................................30

1.4 Wall Mounted Type 20/25/35 Class - C Series ......................................33

1.5 Wall Mounted Type 50/60/71 Class - E(B) Series..................................35

1.6 Duct Connected Type.............................................................................37

1.7 Floor / Ceiling Suspended Dual Type.....................................................39

1.8 Floor Standing Type...............................................................................42

1.9 Ceiling Mounted Cassette 600×600 Type..............................................45

1.10 Ceiling Suspended Type........................................................................47

Part 4 Refrigerant Circuit ........................................................... 49

1. Refrigerant Circuit.................................................................................50

1.1 Outdoor Units.........................................................................................50

1.2 BP Units .................................................................................................52

2. Functional Parts Layout ........................................................................53

2.1 Outdoor Units.........................................................................................53

3. Refrigerant Flow for Each Operation Mode...........................................54

3.1 Cooling Operation ..................................................................................54

3.2 Heating Operation..................................................................................55

3.3 Cooling Oil Return Operation.................................................................56

3.4 Heating Oil Return Operation & Defrost Operation ................................57

Part 5 Function............................................................................ 59

1. Operation Mode ....................................................................................60

2. Basic Control.........................................................................................61

2.1 Normal Operation...................................................................................61

2.2 Compressor PI Control...........................................................................62

2.3 Electronic Expansion Valve PI Control...................................................65

2.4 Cooling Operation Fan Control...............................................................66

3. Special Control......................................................................................67

3.1 Startup Control.......................................................................................67

3.2 Oil Return Operation ..............................................................................68

3.3 Defrosting Operation..............................................................................70

SiENBE18-621

Table of Contents iii

3.4 Pump-down Residual Operation ............................................................71

3.5 Restart Standby......................................................................................71

3.6 Stopping Operation ................................................................................72

4. Protection Control .................................................................................73

4.1 High Pressure Protection Control...........................................................73

4.2 Low Pressure Protection Control............................................................74

4.3 Discharge Pipe Protection Control.........................................................75

4.4 Inverter Protection Control .....................................................................76

4.5 Freeze-up Protection Control.................................................................77

4.6 Dew Condensation Prevention Control..................................................78

5. Other Control.........................................................................................79

5.1 Demand Operation.................................................................................79

5.2 Heating Operation Prohibition................................................................79

6. BP Unit Control .....................................................................................80

6.1 BP Unit Command Conversion ..............................................................80

6.2 BP Unit Electronic Expansion Valve Control..........................................81

6.3 SH Control in Cooling Operation............................................................83

6.4 SC Control in Heating Operation............................................................84

6.5 Heat Exchanger Isothermal Control in Heating Operation.....................84

7. Indoor Unit (RA Models)........................................................................85

7.1 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing ..........85

7.2 Fan Speed Control for Indoor Units........................................................86

7.3 Programme Dry Function.......................................................................87

7.4 Automatic Operation...............................................................................88

7.5 Thermostat Control.................................................................................89

7.6 Night Set Mode.......................................................................................90

7.7 ECONO Mode........................................................................................91

7.8 INTELLIGENT EYE................................................................................92

7.9 HOME LEAVE Operation.......................................................................94

7.10 Inverter POWERFUL Operation.............................................................95

7.11 Other Functions......................................................................................96

8. Indoor Unit (SkyAir Models)..................................................................98

8.1 Function Outline.....................................................................................98

8.2 Electric Function Parts ...........................................................................99

8.3 Function Details....................................................................................100

Part 6 Test Operation ............................................................... 111

1. Test Operation ....................................................................................112

1.1 Procedure and Outline .........................................................................112

2. Outdoor Unit PCB Layout....................................................................117

3. Field Setting........................................................................................118

3.1 Field Setting from Outdoor Unit............................................................118

3.2 Detail of Setting Mode..........................................................................127

4. Field Setting for SkyAir Indoor Unit.....................................................136

4.1 Explanation...........................................................................................136

4.2 Field Setting .........................................................................................137

4.3 Initial Setting Contents .........................................................................138

4.4 Local Setting Mode Number.................................................................139

4.5 Detailed Explanation of Setting Modes ................................................140

4.6 Centralized Group No. Setting .............................................................144

4.7 Maintenance Mode Setting...................................................................145

SiENBE18-621

iv Table of Contents

5. Test Operation and Field Setting for RA Indoor Unit...........................146

5.1 Test Operation from the Remote Control.............................................146

5.2 Jumper Settings ...................................................................................147

Part 7 System Configuration..................................................... 149

1. System Configuration..........................................................................150

1.1 Operation Instructions..........................................................................150

2. Instruction............................................................................................151

2.1 RMXS Series........................................................................................151

2.2 Wall Mounted, Duct, Floor/Ceiling, Floor Standing Type .....................152

2.3 Ceiling Mounted Cassette Type...........................................................227

2.4 Ceiling Suspended Type......................................................................238

Part 8 Troubleshooting ............................................................. 249

1. Caution for Diagnosis..........................................................................251

1.1 Troubleshooting with the Operation Lamp (RA Indoor Unit) ................251

1.2 Troubleshooting with the LED on the SkyAir Indoor Unit.....................252

1.3 Troubleshooting with the LED on the Outdoor Unit..............................253

1.4 Troubleshooting with the LED on the BP Unit......................................254

2. Service Check Function......................................................................255

2.1 RA Indoor Unit Infrared remote control ................................................255

2.2 SkyAir Indoor Unit INSPECTION/TEST Button....................................259

2.3 SkyAir Indoor Unit Wired Remote control.............................................260

2.4 SkyAir Indoor Unit Infrared remote control...........................................261

2.5 Sky Air Indoor Unit Error Codes and LED Indication............................263

2.6 Malfunction Code Indication by Outdoor Unit PCB ..............................264

3. List of Malfunction Code......................................................................268

4. Troubleshooting for RA Indoor Unit.....................................................270

4.1 Indoor Unit PCB Abnormality ...............................................................270

4.2 Freeze-up Protection Control or High Pressure Control.......................271

4.3 Fan Motor or Related Abnormality .......................................................273

4.4 Thermistor or Related Abnormality (Indoor Unit)..................................276

4.5 Shutter Drive Motor / Shutter Limit Switch Abnormality .......................277

4.6 Check...................................................................................................278

5. Troubleshooting for SkyAir Indoor Unit...............................................281

5.1 Indoor Unit PCB Abnormality ...............................................................281

5.2 Malfunction of Drain Water Level System (Float Type)........................282

5.3 Malfunction of Drain System ................................................................284

5.4 Indoor Unit Fan Motor Lock..................................................................285

5.5 Malfunction of Indoor Unit Fan Motor...................................................286

5.6 Swing Flap Motor Malfunction / Lock ...................................................288

5.7 Malfunction of Capacity Setting............................................................290

5.8 Malfunction of Heat Exchanger Thermistor (R2T)................................291

5.9 Malfunction of Heat Exchanger Thermistor (R3T)................................292

5.10 Malfunction of Suction Air Thermistor ..................................................293

5.11 Malfunction of Remote control Thermistor ...........................................294

5.12 Transmission Error (between Indoor Unit and Remote control)...........295

5.13 Transmission Error (between Main and Sub Remote control) .............296

5.14 Malfunction of Field Setting Switch ......................................................297

5.15 Check...................................................................................................298

SiENBE18-621

Table of Contents v

6. Troubleshooting for BP Unit................................................................300

6.1 Malfunction of Electronic Expansion Valve ..........................................300

6.2 Faulty BP Unit PCB..............................................................................301

6.3 Faulty BP Liquid or Gas Pipe Thermistor.............................................302

6.4 Transmission Error between Indoor Unit and BP Unit..........................303

6.5 Transmission Error between Outdoor Unit and BP Unit.......................305

6.6 Check...................................................................................................306

7. Troubleshooting for Outdoor Unit........................................................307

7.1 Faulty Outdoor Unit PCB......................................................................307

7.2 Actuation of High Pressure Switch.......................................................308

7.3 Actuation of Low Pressure Sensor.......................................................310

7.4 Compressor Motor Lock.......................................................................312

7.5 Malfunction of Outdoor Unit Fan Motor................................................313

7.6 Malfunction of Moving Part of Electronic Expansion Valve

(Y1E, Y3E) ...........................................................................................314

7.7 Abnormal Discharge Pipe Temperature...............................................316

7.8 Refrigerant Overcharged......................................................................317

7.9 Malfunction of Thermistor for Outdoor Air (R1T)..................................318

7.10 Malfunction of Discharge Pipe Thermistor (R2T).................................319

7.11 Malfunction of Thermistor (R3T, R5T) for Suction Pipe1, 2 .................320

7.12 Malfunction of Thermistor (R4T) for Outdoor Unit Heat Exchanger.....321

7.13 Malfunction of Thermistor (R7T) for Outdoor Unit Liquid Pipe.............322

7.14 Malfunction of Subcooling Heat Exchanger Thermistor (R6T).............323

7.15 Malfunction of High Pressure Sensor...................................................324

7.16 Malfunction of Low Pressure Sensor....................................................325

7.17 Malfunction of PCB...............................................................................326

7.18 Malfunction of Inverter Radiating Fin Temperature Rise......................327

7.19 Inverter Compressor Abnormal............................................................328

7.20 Inverter Current Abnormal....................................................................329

7.21 Inverter Start up Error...........................................................................330

7.22 Malfunction of Transmission between Inverter and Control PCB.........331

7.23 High Voltage of Capacitor in Main Inverter Circuit ...............................332

7.24 Malfunction of Inverter Radiating Fin Temperature Rise Sensor .........333

7.25 Faulty Combination of Inverter and Fan Driver ....................................334

7.26 Low Pressure Drop Due to Refrigerant Shortage or

Electronic Expansion Valve Failure......................................................335

7.27 Power Supply Insufficient or Instantaneous Failure.............................337

7.28 Check Operation not Executed ............................................................339

7.29 Malfunction of Transmission between Indoor Units and

Outdoor Units.......................................................................................340

7.30 Malfunction of Transmission between Remote control and

Indoor Unit............................................................................................342

7.31 Malfunction of Transmission between Main and Sub

Remote controls...................................................................................343

7.32 Malfunction of Transmission between Indoor and Outdoor Units

in the Same System.............................................................................344

7.33 Excessive Number of Indoor Units.......................................................346

7.34 Address Duplication of Central Remote control ...................................347

7.35 Malfunction of Transmission between Central Remote

Controller and Indoor Unit....................................................................348

7.36 System is not Set yet............................................................................350

7.37 Malfunction of System, Refrigerant System Address Undefined..........351

SiENBE18-621

vi Table of Contents

8. Check..................................................................................................352

9. Thermistor Resistance / Temperature Characteristics........................355

10.Pressure Sensor .................................................................................357

11.Method of Replacing The Inverter’s Power Transistors Modules........358

Part 9 Appendix......................................................................... 361

1. Piping Diagrams..................................................................................362

1.1 Outdoor Units.......................................................................................362

1.2 BP Units ...............................................................................................363

1.3 Indoor Units..........................................................................................364

2. Wiring Diagrams..................................................................................369

2.1 Outdoor Units.......................................................................................369

2.2 BP Units ...............................................................................................370

2.3 Indoor Units..........................................................................................371

Index ............................................................................................. i

Drawings & Flow Charts .............................................................. vii

SiENBE18-621

vii

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 an item for which caution must be exercised.

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

This symbol indicates a prohibited action.

The prohibited item or action is shown inside or near the symbol.

This symbol indicates an action that must be taken, or an instruction.
The instruction is shown inside 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 Caution in Repair

Warning

Be sure to disconnect the power cable plug from the plug socket before
disassembling the equipment for a repair.
Working on the equipment that is connected to a power supply can 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 discharges during the repair work, do not touch the
discharging refrigerant gas.
The refrigerant gas can cause frostbite.

When disconnecting the suction or discharge pipe of the compressor at the
welded section, release the refrigerant gas completely at a well-ventilated
place first.
If there is a gas remaining inside the compressor, the refrig e ran t g as or
refrigerating machine oil discharges when the pipe is disconnected, and it can
cause injury.

If the refrigerant gas leaks during the repair work, ventilate the area. The
refrigerant gas can 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 can 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 can
cause an electrical shock or fire.

Introduction SiENBE18-621

viii

1.1.2 Cautions Regarding Products after Repair

Caution

Do not repair the electrical components with wet hands.
Working on the equipment with wet hands can cause an electrical shock.

Do not clean the air conditioner by splashing water.
Washing the unit with water can 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.

Do not tilt the unit when removing it.
The water inside the unit can spill and wet the furniture and floor.

Be sure to check that the refrigerating cycle section has cooled down
sufficiently before conducting repair work.
Working on the unit when the refrigerating cycle section is hot can cause burns.

Use the welder in a well-ventilated place.
Using the welder in an enclosed room can cause oxygen deficiency.

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 can cause an electrical shock,
excessive heat generation or fire.

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 can fall and cause injury.

Be sure to install the product correctly by using the provided standard
installation frame.
Incorrect use of the installation frame and improper install ation can cause the
equipment to fall, resulting in injury.

For integral units
only

Be sure to install the product securely in the installation frame mounted on a
window frame.
If the unit is not securely mounted, it can fall and cause injury.

For integral units
only

SiENBE18-621

ix

1.1.3 Inspection after Repair

Be sure to use an exclusive power circuit for the equipment, and follow the
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 can cause an
electrical shock or fire.

Be sure to use the specified cable to connect 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 can cause excessive heat generation or fire.

When connecting the cable 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 can cause
an electrical shock, excessive heat generation or fire.

Do not damage or modify the power cable.
Damaged or modified power cable can cause an electrical shock or fire.
Placing heavy items on the power cable, and heating or pulling the power cable
can damage the cable.

Do not mix air or gas other than the specified refrigerant (R-410A ) 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 leak and repair it before
charging the refrigerant. After charging refrigerant, make sure that there is no
refrigerant leak.
If the leak cannot be located and the repair work mu st 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 can
generate toxic gases when it contacts flames, such as fan and other heaters,
stoves and ranges.

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

Be sure to install the packing and seal on the installation frame properly.
If the packing and seal are not installed properly, water can enter the room and
wet the furniture and floor.

For integral units
only

Warning

Check to make sure that the power cable plug is not dirty or loose, then insert
the plug into a power outlet all the way.
If the plug has dust or loose connection, it can cause an electrical shock or fire.

If the power cable and lead wires have scratches or deteriorated, be sure to
replace them.
Damaged cable and wires can cause an electrical shock, excessive heat
generation or fire.

Introduction SiENBE18-621

x

1.1.4 Using 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:

1.1.5 Using Icons List

Do not use a joined power cable or extension cable, or share the same power
outlet with other electrical appliances, since it can cause an electrical shock,
excessive heat generation or fire.

Warning

Caution

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 can cause excessive heat generation,
fire or an electrical shock.

If the installation platform or frame has corroded, replace it.
Corroded installation platform or frame can cause the unit to fall, resulting in
injury.

Check the grounding, and repair it if the equipment is not properly grounded.
Improper grounding can cause an electrical shock.

Be sure to measure the insulation resistance after the repair, and make sure
that the resistance is 1 Mohm or higher.
Faulty insulation can cause an electrical shock.

Be sure to check the drainage of the indoor unit after the repair.
Faulty drainage can cause the water to enter the room and wet the furniture
and floor.

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.

SiENBE18-621

List of Functions 1

Part 1

List of Functions

1. List of Functions. .....................................................................................2

List of Functions SiENBE18-621

2 List of Functions

1. List of Functions

Category Functions

RMXS112·140·160E7V3B

Category Functions

RMXS112·140·160E7V3B

Basic
Function

Inverter (with Inverter Power Control)

#

Health &
Clean

Air Purifying Filter with Bacteriostatic &
Virustatic Functions

—

Operation Limit for Cooling (°CDB)

–5

~

46

Photocatalytic Deodorizing Filter —

Operation Limit for Heating (°CWB)

–15

~

15.5

Air Purifying Filter with Photocatalytic
Deodorizing Function

—

PAM Control —

Titanium Apatite Photocatalytic
Air-Purifying Filter

—

Compressor

Oval Scroll Compressor # Longlife Filter (Option) —
Swing Compressor — Mould Proof Air Filter —
Rotary Compressor — Wipe-clean Flat Panel —
Reluctance DC Motor # Washable Grille —

Comfortable
Airflow

Power-Airflow Flap — Filter Cleaning Indicator —
Power-Airflow Dual Flaps — Mold Proof Operation —
Power-Airflow Diffuser — Heating Dry Operation —
Wide-Angle Louvers — Good-Sleep Cooling Operation —
Vertical Auto-Swing (Up and Down) —

Timer

24-Hour On/Off Timer —
Horizontal Auto-Swing (Right and Left) — 72-Hour On/Off Timer —
3-D Airflow — Night Set Mode —
Comfort Airflow Mode —

Worry Free
“Reliability &
Durability”

Auto-Restart (after Power Failure) —
3-Step Airflow (H/P Only) — Self-Diagnosis (Digital, LED) Display #

Comfort
Control

Auto Fan Speed — Wiring-Error Check —
Indoor Unit Silent Operation — Automatic Test Operation #
Night Quiet Mode (Automatic) # Memory Function #
Outdoor Unit Silent Operation

(Manual)

#

Anticorrosion Treatment of Outdoor

Heat Exchanger

#

Intelligent Eye —

Flexibility

Multi-Split / Split Type Compatible

Indoor Unit

—

Quick Warming Function # Flexible Voltage Correspondence —
Hot-Start Function — High Ceiling Application —
Automatic Defrosting # Chargeless —

Operation

Automatic Operation — Either Side Drain (Right or Left) —
Programme Dry Function — Power-Selection —

Fan Only —

Remote
Control

5-Rooms Centralized Controller

(Option)

—

Lifestyle
Convenience

New Powerful Operation
(Non-Inverter)

—

Remote Control Adapter

(Normal Open-Pulse Contact) (Option)

—

Inverter Powerful Operation —

Remote Control Adapter

(Normal Open Contact) (Option)

—

Priority-Room Setting —

Dlll-NET Compatible (Adapter)

(Option)

—

Cooling / Heating Mode Lock —

Remote
Control

Wireless —
Home Leave Operation — Wired —
ECONO Mode —
Indoor Unit On/Off Switch —
Signal Reception Indicator —
Temperature Display —
Another Room Operation —

Note: # : Holding Functions

— : No Functions

SiENBE18-621

List of Functions 3

Category Functions

FTXS20-35D3VMW(L)

FTXS50D2V1W(L)

FTXS20-35CAVMB

Category Functions

FTXS20-35D3VMW(L)

FTXS50D2V1W(L)

FTXS20-35CAVMB

Basic
Function

Inverter (with Inverter Power Control) ###

Health &
Clean

Air Purifying Filter with Bacteriostatic,

Virustatic Functions

———

Operation Limit for Cooling (°CDB) — — —
Operation Limit for Heating (°CWB) — — — Photocatalytic Deodorizing Filter — — —

PAM Control — — —

Air Purifying Filter with Photocatalytic

Deodorizing Function

——#

Compressor

Oval Scroll Compressor — — —

Titanium Apatite Photocatalytic

Air-Purifying Filter

##—

Swing Compressor — — —
Rotary Compressor — — — Long life Filter (Option) — — —
Reluctance DC Motor — — — Mold Proof Air Filter ###

Comfortable
Airflow

Power-Airflow Flap — — — Wipe-clean Flat Panel ###
Power-Airflow Dual Flaps ### Washable Grille — — —
Power-Airflow Diffuser — — — Filter Cleaning Indicator — — —
Wide-Angle Louvers ### Mold Proof Operation — — —
Vertical Auto-Swing (Up and Down) ### Heating Dry Operation — — —
Horizontal Auto-Swing (Right and Left) — — — Good-Sleep Cooling Operation — — —
3-D Airflow — — —

Timer

24-Hour On/Off Timer ###
Comfort Airflow Mode ##— 72-Hour On/Off Timer — — —
3-Step Airflow (H/P Only) — — — Night Set Mode ###

Comfort
Control

Auto Fan Speed ###

Worry Free
“Reliability &
Durability”

Auto-Restart (after Power Failure) ###
Indoor Unit Silent Operation ### Self-Diagnosis (Digital, LED) Display ###
Night Quiet Mode (Automatic) — — — Wiring Error Check — — —
Outdoor Unit Silent Operation

(Manual)

———

Anticorrosion Treatment of Outdoor

Heat Exchanger

———

Intelligent Eye ###
Quick Warming Function — — —

Flexibility

Multi-Split / Split Type Compatible

Indoor Unit

###

Hot-Start Function ###
Automatic Defrosting — — — Flexible Voltage Correspondence ###

Operation

Automatic Operation ### High Ceiling Application — — —
Programme Dry Function ### Chargeless — — —
Fan Only ### Either Side Drain (Right or Left) ###

Lifestyle
Convenience

New Powerful Operation (Non­Inverter)

— — — Power Selection — — —

Inverter Powerful Operation

###

Remote
Control

5-Rooms Centralized Controller

(Option)

###

Priority-Room Setting — — —

Remote Control Adapter

(Normal Open-Pulse Contact) (Option)

###

Cooling / Heating Mode Lock — — —
Home Leave Operation — — #

Remote Control Adapter

(Normal Open Contact) (Option)

###

ECONO Mode ##—
Indoor Unit On/Off Switch ###

DIII-NET Compatible (Adapter)

(Option)

###

Signal Reception Indicator ###

Remote
Control

Wireless ###
Temperature Display — — — Wired — — —
Another Room Operation — — —

Note: # : Holding Functions

— : No Functions

List of Functions SiENBE18-621

4 List of Functions

Category Functions

FTXS50/60/71EV1B

FTXS71BAVMB

Category Functions

FTXS50/60/71EV1B

FTXS71BAVMB

Basic
Function

Inverter (with Inverter Power Control) ##

Health &
Clean

Air Purifying Filter with Bacteriostatic &

Virustatic Functions

——
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

# —

Compressor

Oval Scroll Compressor — — Long life Filter (Option) — —
Swing Compressor — — Mold Proof Air Filter ##
Rotary Compressor — — Wipe-clean Flat Panel ##
Reluctance DC Motor — — Washable Grille — —

Comfortable
Airflow

Power-Airflow Flap — — Filter Cleaning Indicator — —
Power-Airflow Dual Flaps ## Mold Proof Operation — —
Power-Airflow Diffuser — — Heating Dry Operation — —
Wide-Angle Louvers ## Good-Sleep Cooling Operation — —
Vertical Auto-Swing (Up and Down) ##

Timer

24-Hour On/Off Timer ##
Horizontal Auto-Swing (Right and Left) ## 72-Hour On/Off Timer — —
3-D Airflow ## Night Set Mode ##
Comfort Airflow Mode — —

Worry Free
“Reliability &
Durability”

Auto-Restart (after Power Failure) ##
3-Step Airflow (H/P Only) — — Self-Diagnosis (Digital, LED) Display ##

Comfort
Control

Auto Fan Speed ## Wiring-Error Check — —
Indoor Unit Silent Operation ##

Anticorrosion Treatment of Outdoor

Heat Exchanger

——

Night Quiet Mode (Automatic) — —

Flexibility

Multi-Split / Split Type Compatible

Indoor Unit

##

Outdoor Unit Silent Operation
(Manual)

— — Flexible Voltage Correspondence — #

Intelligent Eye ## High Ceiling Application — —
Quick Warming Function — — Chargeless — —
Hot-Start Function ## Either Side Drain (Right or Left) ##
Automatic Defrosting — — Power-Selection — —

Operation

Automatic Operation ##

Remote
Control

5-Rooms Centralized Controller

(Option)

##

Programme Dry Function ##

Remote Control Adapter

(Normal Open-Pulse Contact) (Option)

##

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 — —
Cooling / Heating Mode Lock — —
Home Leave Operation ##
ECONO Mode — —
Indoor Unit On/Off Switch ##
Signal Reception Indicator ##
Temperature Display — —
Another Room Operation — —

Note: # : Holding Functions

— : No Functions

SiENBE18-621

List of Functions 5

Category Functions

FDXS25/35CAVMB

FDXS50/60CVMB

FDXS25/35EAVMB

Category Functions

FDXS25/35CAVMB

FDXS50/60CVMB

FDXS25/35EAVMB

Basic
Function

Inverter (with Inverter Power Control) ###

Health &
Clean

Air Purifying Filter with Bacteriostatic &

Virustatic Functions

———
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

———

Compressor

Oval Scroll Compressor — — — Mold Proof Air Filter ###
Swing Compressor — — — Wipe-clean Flat Panel — — —
Rotary Compressor — — — Washable Grille — — —
Reluctance DC Motor — — — Mold Proof Operation — — —

Comfortable
Airflow

Power-Airflow Flap — — — Heating Dry Operation — — —
Power-Airflow Dual Flaps — — — Good-Sleep Cooling Operation — — —
Power-Airflow Diffuser — — —

Timer

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 — — —

3-Step Airflow (H/P Only) — — —

Anticorrosion Treatment of Outdoor

Heat Exchanger

———

Comfort
Control

Auto Fan Speed ###

Flexibility

Multi-Split / Split Type Compatible

Indoor Unit

###

Indoor Unit Silent Operation ### Flexible Voltage Correspondence ###
Night Quiet Mode (Automatic) — — — High Ceiling Application — — —
Outdoor Unit Silent Operation

(Manual)

— — — Chargeless — — —

Intelligent Eye — — — Either Side Drain (Right or Left) — — —
Quick Warming Function — — — 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 ###

Remote Control Adapter

(Normal Open Contact) (Option)

###

Programme Dry Function ### DIII-NET Compatible (Adapter) (Option) ###
Fan Only ###

Remote
Control

Wireless ###

Lifestyle
Convenience

New Powerful Operation
(Non-Inverter)

——— Wired ———

Inverter Powerful Operation ###
Priority-Room Setting — — —
Cooling / Heating Mode Lock — — —
Home Leave Operation ###
ECONO Mode — — —
Indoor Unit On/Off Switch ###
Signal Reception Indicator ###
Temperature Display — — —
Another Room Operation — — —

Note: # : Holding Functions

— : No Functions

List of Functions SiENBE18-621

6 List of Functions

Category Functions

FLXS25-60BAVMB

FVXS25-50BAVMB

Category Functions

FLXS25-60BAVMB

FVXS25-50BAVMB

Basic Function

Inverter (with Inverter Power Control) ##

Health & Clean

Air Purifying Filter with Bacteriostatic &
Virustatic Functions

##

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

——

Compressor

Oval Scroll Compressor — — Long life Filter (Option) — —
Swing Compressor — — Mold Proof Air Filter ##
Rotary Compressor — — Wipe-clean Flat Panel — —
Reluctance DC Motor — — Washable Grille — #

Comfortable
Airflow

Power-Airflow Flap — — Filter Cleaning Indicator — —
Power-Airflow Dual Flaps — — Mold Proof Operation — —
Power-Airflow Diffuser — — Heating Dry Operation — —
Wide-Angle Louvers — # Good-Sleep Cooling Operation — —
Vertical Auto-Swing (Up and Down) ##

Timer

24-Hour On/Off Timer ##
Horizontal Auto-Swing (Right and Left) — — 72-Hour On/Off Timer — —
3-D Airflow — — Night Set Mode ##
Comfort Airflow Mode — —

Worry Free
“Reliability &
Durability”

Auto-Restart (after Power Failure) ##
3-Step Airflow (H/P Only) — # Self-Diagnosis (Digital, LED) Display ##

Comfort Control

Auto Fan Speed ## Wiring-Error Check — —
Indoor Unit Silent Operation ##

Anticorrosion Treatment of Outdoor

Heat Exchanger

——

Night Quiet Mode (Automatic) — —

Flexibility

Multi-Split / Split Type Compatible

Indoor Unit

##

Outdoor Unit Silent Operation
(Manual)

— — Flexible Voltage Correspondence ##

Intelligent Eye — — High Ceiling Application — —
Quick Warming Function — — Chargeless — —
Hot-Start Function ## Either Side Drain (Right or Left) — —
Automatic Defrosting — — Power-Selection — —

Operation

Automatic Operation ##

Remote Control

5-Rooms Centralized Controller

(Option)

##

Programme Dry Function ##

Remote Control Adapter

(Normal Open-Pulse Contact) (Option)

##

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 — —
Cooling / Heating Mode Lock — —
Home Leave Operation ##
ECONO Mode — —
Indoor Unit On/Off Switch ##
Signal Reception Indicator ##
Temperature Display — —
Another Room Operation — —

Note: # : Holding Functions

— : No Functions

SiENBE18-621

List of Functions 7

Category Functions

FFQ25-60B8V1B

FHQ35-60BVV1B

Category Functions

FFQ25-60B8V1B

FHQ35-60BVV1B

Basic
Function

Inverter (with Inverter Power Control)

##

Health &
Clean

Air Purifying Filter with Bacteriostatic &
Virustatic Functions

——
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
Deodorizing Function

——

Compressor

Oval Scroll Compressor — — Longlife Filter (Option) ##
Swing Compressor — — Mold Proof Air Filter ##
Rotary Compressor — — Wipe-clean Flat Panel — —
Reluctance DC Motor — — Washable Grille ##

Comfortable
Airflow

Power-Airflow Flap — — Filter Cleaning Indicator ##
Power-Airflow Dual Flaps — — Mold Proof Operation — —
Power-Airflow Diffuser — — Heating Dry Operation — —
Wide-Angle Louvers — — Good-Sleep Cooling Operation — —
Vertical Auto-Swing (Up and Down) ##

Timer

24-Hour On/Off Timer — —
Horizontal Auto-Swing (Right and Left) — — 72-Hour On/Off Timer ##
3-D Airflow — — Night Set Mode — —
Comfort Airflow Mode — —

Worry Free
“Reliability &
Durability”

Auto-Restart (after Power Failure) ##
3-Step Airflow (H/P Only) — — Self-Diagnosis (Digital, LED) Display ##

Comfort
Control

Auto Fan Speed — — Wiring-Error Check — —
Indoor Unit Silent Operation — —

Anticorrosion Treatment of Outdoor

Heat Exchanger

——

Night Quiet Mode (Automatic) — —

Flexibility

Multi-Split / Split Type Compatible

Indoor Unit

##

Outdoor Unit Silent Operation
(Manual)

— — Flexible Voltage Correspondence — —

Intelligent Eye — — High Ceiling Application — #
Quick Warming Function — — Chargeless — —
Hot-Start Function ## Either Side Drain (Right or Left) — —
Automatic Defrosting — — Power-Selection — —

Operation

Automatic Operation ##

Remote
Control

5-Rooms Centralized Controller

(Option)

——

Programme Dry Function ##

Remote Control Adapter

(Normal Open-Pulse Contact) (Option)

——

Fan Only ##

Remote Control Adapter

(Normal Open Contact) (Option)

——

Lifestyle
Convenience

New Powerful Operation
(Non-Inverter)

——

Dlll-NET Compatible (Adapter)

(Option)

##

Inverter Powerful Operation — —

Remote
Control

Wireless

##

Priority-Room Setting — — Wired ##
Cooling / Heating Mode Lock — —
Home Leave Operation — —
ECONO Mode — —
Indoor Unit On/Off Switch — —
Signal Reception Indicator — —
Temperature Display — —
Another Room Operation — —

Note: # : Holding Functions

— : No Functions

List of Functions SiENBE18-621

8 List of Functions

SiENBE18-621

Specifications 9

Part 2

Specifications

1. Specifications........................................................................................10

1.1 Outdoor Units.........................................................................................10

1.2 BP Unit...................................................................................................11

1.3 Indoor Units............................................................................................12

Specifications SiENBE18-621

10 Specifications

1. Specifications

1.1 Outdoor Units

50Hz 230V

Note:

1. H Refrigerant charge is required. (Chargeless piping length 0m)
Formula for calculation charge : R (kg)
R = Total length (m) of liquid pipe size at φ9.5×0.054 + Total length (m) of liquid piping size at φ6.4×0.022

2. The data are based on the conditions shown in the table below.

Model RMXS112E7V3B RMXS140E7V3B RMXS160E7V3B

4HP 5HP 6HP

Cooling Capacity

kW

(kcal/h)

11.2 (9,630) 14.0 (12,040) 15.5 (13,330)

Heating Capacity

kW

(kcal/h)

12.5 (10,750) 16.0 (13,760) 17.5 (15,050)

Total Indoor Unit Capacity kW 5.5~14.5 7.0~18.2 8.0~20.8
Power Consumption W —
Running Current A —
Casing Color Ivory White

Compressor

Type Hermetically Sealed Scroll Type
Model JT100G-VDL
Motor Output

(2.2kW/60rps)

kW 2.5 3.0 3.5

Refrigerant
Oil

Model DAPHNE FVC68D
Charge L 1.5

Refrigerant

Type R-410A
Charge kg 4.0

Air Flow Rate
(H)

Cooling

m³/min

(cfm)

106 (3,742)

Heating

m³/min

(cfm)

106 (3,742)

Fan

Type Propeller
Motor Output W 70+70
Running Current A 0.4+0.4

Power Consumption W 88+88
Starting Current A 19.2 23.7 25.2
Dimensions (H×W×D) mm 1,345×900×320
Weight kg 127

Operation
Sound

Cooling dBA 51 52 54

Heating dBA 53 54 55

Piping
Connection

Liquid mm φ9.5 (Flare Connection)

Gas mm φ19.1 (Brazing Connection)

Drain mm φ18
Heat Insulation Both Liquid and Gas Pipes
No. of Wiring Connection 3 For Power Supply (Including Earth Wiring), 2 For Interunit Wiring (Outdoor Unit-BP)

Total piping
length

O.U. - BP m 55

BP - I.U. m 60 80 90

System Total m 115 135 145
Max. piping

length

BP - I.U. m 15

1st Branch - I.U. m 40

Max. level
difference

O.U. - BP m 30

O.U. - I.U. m 30

BP - BP, I.U. - I.U. m 15
Necessity of Additional Charge H kg/m Necessary

Cooling Heating Piping Length

Indoor ; 27°CDB / 19°CWB
Outdoor ; 35°CDB

Indoor ; 20°CDB
Outdoor ; 7°CDB / 6°CWB

Main Piping : 5m
Branch Piping : 3m
Level difference:0m

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

Outdoor Unit

Main Piping

BP Unit

Indoor Unit

Branch Piping

(Q0143)

SiENBE18-621

Specifications 11

1.2 BP Unit

50Hz 230V

Note:

1. BP or Indoor Unit Max. Height - BP or Indoor Unit Min. Height → Max. 15m.
Set up BP and indoor unit within 15m height difference.

2. The piping connection must be cut so as to suit the piping sizes of the indoor unit which will be connected.
The same sizes should be used for the piping on the outdoor unit.

3. ( )* : including auxiliary piping length

Model BPMKS967B2B BPMKS967B3B

Connectable Indoor Units 1~2 Units 1~3 Units
Casing Color Paintingless
Power Consumption W 10 10
Running Current A 0.05 0.05
Refrigerant Type R-410A
Dimension (H×W×D) mm 180×294(650)*×350
Package Dimension (H×W×D) mm 257×738×427
Machine Weight kg 7.5 8
Gross Weight kg 11 12
Number of Wiring Connections 4 for Interunit Wiring

Piping
Connection
(Brazing)

Liquid mm Main : φ9.5×1 / Branch : φ6.4×2 Main : φ9.5×1 / Branch : φ6.4×3
Gas mm Main : φ19.1×1 / Branch : φ15.9×2 Main : φ19.1×1 / Branch : φ15.9×3

Drain mm Drain Processingless
Heat Insulation Both Liquid and Gas Pipes
Max. Piping Length m —
Amount of Additional Charge g/m —
Max. Height Difference m —
Max. Combination kW 14.2 20.8
Min. Combination kW 2.0 2.0

Accessories

Installation Manual pc. 1

L Shape Reducer pc.

For Main

Liquid 1 (For I.D. φ6.4)

Gas 1 (For I.D. φ12.7)
Gas 1 (For I.D. φ15.9, 19.1)

For Branch

Gas 2 (For I.D. φ12.7, 9.5) 3 (For I.D. φ12.7, 9.5)

Liquid 1 (For I.D. φ9.5)
Hanger Metal pc. 4
Screws pc. 8 (M4×8)
Heat Insulation (2pc. is 1 set) 3 Set 4 Set
Binding Band pc. 2

Drawing No. C : 4D050058B

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

Specifications SiENBE18-621

12 Specifications

1.3 Indoor Units

Wall Mounted Type

50Hz 230V

Model

FTXS20D3VMW FTXS20D3VML

Cooling Heating Cooling Heating
Rated Capacity 2.0kW Class 2.0kW Class
Front Panel Color White Silver Line

Air Flow Rates

m³/min

(cfm)

H 8.7 (307) 9.4 (332) 8.7 (307) 9.4 (332)

M 6.7 (237) 7.6 (268) 6.7 (237) 7.6 (268)

L 4.7 (166) 5.8 (205) 4.7 (166) 5.8 (205)

SL 3.9 (138) 5.0 (177) 3.9 (138) 5.0 (177)

Fan

Type Cross Flow Fan Cross Flow Fan
Motor Output W 40 40

Speed Steps 5 Steps, Silent, Auto 5 Steps, Silent, Auto
Air Direction Control Right, Left, Horizontal, Downward Right, Left, Horizontal, Downward
Air Filter Removable-Washable-Mildew Proof Removable-Washable-Mildew Proof
Running Current (Rated) A 0.16 0.16 0.16 0.16
Power Consumption (Rated) W 35 35 35 35
Power Factor % 95.1 95.1 95.1 95.1
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 283×800×195 283×800×195
Packaged Dimensions (H×W×D) mm 265×855×340 265×855×340
Weight kg 9 9
Gross Weight kg 12 12
Operation

Sound

H/L/SL dBA 38/25/22 38/28/25 38/25/22 38/28/25
Sound Power H dBA 56 56 56 56

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

Piping Connection

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ 9.5 φ 9.5

Drain mm

φ18.0 φ18.0

Drawing No. 3D051085 3D051086

Model

FTXS25D3VMW FTXS25D3VML

Cooling Heating Cooling Heating
Rated Capacity 2.5kW Class 2.5kW Class
Front Panel Color White Silver Line

Air Flow Rates

m³/min

(cfm)

H 8.7 (307) 9.4 (332) 8.7 (307) 9.4 (332)

M 6.7 (237) 7.6 (268) 6.7 (237) 7.6 (268)

L 4.7 (166) 5.8 (205) 4.7 (166) 5.8 (205)

SL 3.9 (138) 5.0 (177) 3.9 (138) 5.0 (177)

Fan

Type Cross Flow Fan Cross Flow Fan
Motor Output W 40 40

Speed Steps 5 Steps, Silent, Auto 5 Steps, Silent, Auto
Air Direction Control Right, Left, Horizontal, Downward Right, Left, Horizontal, Downward
Air Filter Removable-Washable-Mildew Proof Removable-Washable-Mildew Proof
Running Current (Rated) A 0.16 0.16 0.16 0.16
Power Consumption (Rated) W 35 35 35 35
Power Factor % 95.1 95.1 95.1 95.1
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 283×800×195 283×800×195
Packaged Dimensions (H×W×D) mm 265×855×340 265×855×340
Weight kg 9 9
Gross Weight kg 12 12
Operation

Sound

H/L/SL dBA 38/25/22 38/28/25 38/25/22 38/28/25
Sound Power H dBA 56 56 56 56

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

Piping Connection

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ 9.5 φ 9.5

Drain mm

φ18.0 φ18.0

Drawing No. 3D051087 3D051088

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

SiENBE18-621

Specifications 13

50Hz 230V

Model

FTXS35D3VMW FTXS35D3VML

Cooling Heating Cooling Heating
Rated Capacity 3.5kW Class 3.5kW Class
Front Panel Color White Silver Line

Air Flow Rates

m³/min

(cfm)

H 8.9 (314) 9.7 (342) 8.9 (314) 9.7 (342)

M 6.9 (244) 7.9 (279) 6.9 (244) 7.9 (279)

L 4.8 (169) 6.0 (212) 4.8 (169) 6.0 (212)

SL 4.0 (141) 5.2 (184) 4.0 (141) 5.2 (184)

Fan

Type Cross Flow Fan Cross Flow Fan
Motor Output W 40 40

Speed Steps 5 Steps, Silent, Auto 5 Steps, Silent, Auto
Air Direction Control Right, Left, Horizontal, Downward Right, Left, Horizontal, Downward
Air Filter Removable-Washable-Mildew Proof Removable-Washable-Mildew Proof
Running Current (Rated) A 0.18 0.18 0.18 0.18
Power Consumption (Rated) W 40 40 40 40
Power Factor % 96.6 96.6 96.6 96.6
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 283×800×195 283×800×195
Packaged Dimensions (H×W×D) mm 265×855×340 265×855×340
Weight kg 9 9
Gross Weight kg 12 12
Operation

Sound

H/L/SL dBA 39/26/23 39/29/26 39/26/23 39/29/26
Sound Power H dBA 57 57 57 57

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

Piping Connection

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ 9.5 φ 9.5

Drain mm

φ18.0 φ18.0

Drawing No. 3D051089 3D051090

Model

FTXS50D2V1W FTXS50D2V1L

Cooling Heating Cooling Heating
Rated Capacity 5.0kW Class 5.0kW Class
Front Panel Color White White

Air Flow Rates

m³/min

(cfm)

H 11.4 (402) 11.4 (402) 11.4 (402) 11.4 (402)

M 9.3 (328) 9.4 (332) 9.3 (328) 9.4 (332)

L 7.1 (251) 7.4 (261) 7.1 (251) 7.4 (261)

SL 6.2 (219) 6.3 (222) 6.2 (219) 6.3 (222)

Fan

Type Cross Flow Fan Cross Flow Fan
Motor Output W 40 40

Speed Steps 5 Steps, Silent, Auto 5 Steps, Silent, Auto
Air Direction Control Right, Left, Horizontal, Downward Right, Left, Horizontal, Downward
Air Filter Removable-Washable-Mildew Proof Removable-Washable-Mildew Proof
Running Current (Rated) A 0.21 0.21 0.21 0.21
Power Consumption (Rated) W 48 48 48 48
Power Factor % 99.4 99.4 99.4 99.4
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 283×800×195 283×800×195
Packaged Dimensions (H×W×D) mm 265×855×340 265×855×340
Weight kg 9 9
Gross Weight kg 12 12
Operation

Sound

H/M/L/SL dBA 46/41/35/32 46/40/34/31 46/41/35/32 46/40/34/31
Sound Power H dBA 62 62 62 62

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

Piping Connection

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ12.7 φ12.7

Drain mm

φ18.0 φ18.0

Drawing No. 3D051814 3D051815

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

Specifications SiENBE18-621

14 Specifications

50Hz 230V

Model

FTXS20CAVMB FTXS25CAVMB

Cooling Heating Cooling Heating
Rated Capacity 2.0kW Class 2.5kW Class
Front Panel Color White White

Air Flow Rates

m³/min

(cfm)

H 7.7 (272) 7.8 (275) 7.7 (272) 7.8 (275)

M 5.9 (208) 6.5 (230) 5.9 (208) 6.5 (230)

L 4.2 (148) 5.3 (187) 4.2 (148) 5.3 (187)

SL 3.6 (127) 4.6 (162) 3.6 (127) 4.6 (162)

Fan

Type Cross Flow Fan Cross Flow Fan
Motor Output W 18 18

Speed Steps 5 Steps, Silent, Auto 5 Steps, Silent, Auto
Air Direction Control Right, Left, Horizontal, Downward Right, Left, Horizontal, Downward
Air Filter Removable-Washable-Mildew Proof Removable-Washable-Mildew Proof
Running Current (Rated) A 0.18 0.18 0.18 0.18
Power Consumption (Rated) W 40 40 40 40
Power Factor % 96.6 96.6 96.6 96.6
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 273×784×195 273×784×195
Packaged Dimensions (H×W×D) mm 258×834×325 258×834×325
Weight kg 7.5 7.5
Gross Weight kg 11 11
Operation

Sound

H/M/L/SL dBA 38/32/25/22 38/33/28/25 38/32/25/22 38/33/28/25
Sound Power H dBA 56 56 56 56

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

Piping Connection

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ 9.5 φ 9.5

Drain mm

φ18.0 φ18.0

Drawing No. 3D050941 3D050943

Model

FTXS35CAVMB FTXS50EV1B

Cooling Heating Cooling Heating
Rated Capacity 3.5kW Class 5.0kW Class
Front Panel Color White White

Air Flow Rates

m³/min

(cfm)

H 7.7 (272) 8.1 (286) 14.7 (519) 16.1 (569)

M 6.0 (212) 6.7 (237) 12.4 (438) 13.9 (491)

L 4.4 (155) 5.3 (187) 10.3 (364) 11.5 (406)

SL 3.8 (134) 4.6 (162) 9.5 (335) 10.2 (360)

Fan

Type Cross Flow Fan Cross Flow Fan
Motor Output W 18 43

Speed Steps 5 Steps, Silent, Auto 5 Steps, Silent, Auto
Air Direction Control Right, Left, Horizontal, Downward Right, Left, Horizontal, Downward
Air Filter Removable-Washable-Mildew Proof Removable-Washable- Mildew Proof
Running Current (Rated) A 0.18 0.18 0.15 0.16
Power Consumption (Rated) W 40 40 34 36
Power Factor % 96.6 96.6 98.6 97.8
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 273×784×195 290×1,050×238
Packaged Dimensions (H×W×D) mm 258×834×325 337×1,147×366
Weight kg 7.5 12
Gross Weight kg 11 17
Operation

Sound

H/M/L/SL dBA 39/33/26/23 39/34/29/26 43/39/34/31 42/38/33/30
Sound Power H dBA 57 57 59 58

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

Piping Connection

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ 9.5 φ12.7

Drain mm

φ18.0 φ18.0

Drawing No. 3D050945 3D051645

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

SiENBE18-621

Specifications 15

50Hz 230V

Model

FTXS60EV1B FTXS71EV1B

Cooling Heating Cooling Heating
Rated Capacity 6.0kW Class 7.1kW Class
Front Panel Color White White

Air Flow Rates

m³/min

(cfm)

H 16.2 (572) 17.4 (614) 17.4 (614) 19.7 (695)

M 13.6 (480) 15.1 (533) 14.6 (515) 16.6 (586)

L 11.4 (402) 12.7 (448) 11.6 (409) 13.5 (477)

SL 10.2 (360) 11.4 (402) 10.6 (374) 12.1 (427)

Fan

Type Cross Flow Fan Cross Flow Fan
Motor Output W 43 43

Speed Steps 5 Steps, Silent, Auto 5 Steps, Silent, Auto
Air Direction Control Right, Left, Horizontal, Downward Right, Left, Horizontal, Downward
Air Filter Removable-Washable-Mildew Proof Removable-Washable-Mildew Proof
Running Current (Rated) A 0.18 0.20 0.20 0.22
Power Consumption (Rated) W 40 45 45 50
Power Factor % 96.6 97.8 97.8 98.8
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 290×1,050×238 290×1,050×238
Packaged Dimensions (H×W×D) mm 337×1,147×366 337×1,147×366
Weight kg 12 12
Gross Weight kg 17 17
Operation

Sound

H/M/L/SL dBA 45/41/36/33 44/40/35/32 46/42/37/34 46/42/37/34
Sound Power H dBA 61 60 63 63

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

Piping Connection

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ12.7 φ15.9

Drain mm

φ18.0 φ18.0

Drawing No. 3D051646 3D052803

Model

FTXS71BAVMB

Cooling Heating
Rated Capacity 7.1kW Class
Front Panel Color White

Air Flow Rates

m³/min

(cfm)

H 16.7 (590) 18.5 (653)

M 14.2 (501) 15.1 (533)

L 11.6 (409) 13.5 (477)

SL 10.6 (374) 12.1 (427)

Fan

Type Cross Flow Fan
Motor Output W 43

Speed Steps 5 Steps, Silent, Auto
Air Direction Control Right, Left, Horizontal, Downward
Air Filter Removable-Washable-Mildew Proof
Running Current (Rated) A 0.20 0.22
Power Consumption (Rated) W 45 50
Power Factor % 96.4 97.6
Temperature Control Microcomputer Control
Dimensions (H×W×D) mm 290×1,050×238
Packaged Dimensions (H×W×D) mm 337×1,147×366
Weight kg 12
Gross Weight kg 17
Operation

Sound

H/M/L/SL dBA 46/42/37/34 46/42/37/34
Sound Power H dBA 63 63

Heat Insulation Both Liquid and Gas Pipes

Piping Connection

Liquid mm

φ

6.4

Gas mm

φ15.9

Drain mm

φ18.0

Drawing No. 3D050880

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

Specifications SiENBE18-621

16 Specifications

Duct Connected Type

50Hz 230V

Note: The operating sound is based on the rear side suction inlet and the external static pressure 40 Pa.

Operating sound for under side suction inlet : [operating sound for rear side suction inlet] +5 dB.
However, when installation to which the external static pressure becomes low is carried out,
5 dB or more may go up.

Model

FDXS25CAVMB FDXS35CAVMB

Cooling Heating Cooling Heating
Rated Capacity 2.5kW Class 3.5kW Class
Front Panel Color

——

Air Flow Rates

m³/min

(cfm)

H 9.5 (335) 9.5 (335) 10.0 (353) 10.0 (353)

M 8.8 (311) 8.8 (311) 9.3 (328) 9.3 (328)

L 8.0 (282) 8.0 (282) 8.5 (300) 8.5 (300)

SL 6.7 (237) 6.7 (237) 7.0 (247) 7.0 (247)

Fan

Type Sirocco Fan Sirocco Fan
Motor Output W 62 62

Speed Steps 5 Steps, Silent, Auto 5 Steps, Silent, Auto
Air Filter Removable-Washable-Mildew Proof Removable-Washable-Mildew Proof
Running Current (Rated) A 0.47 0.47 0.47 0.47
Power Consumption (Rated) W 100 100 100 100
Power Factor % 92.5 92.5 92.5 92.5
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 200×900×620 200×900×620
Packaged Dimensions (H×W×D) mm 266×1,106×751 266×1,106×751
Weight kg 25 25
Gross Weight kg 31 31
Operation

Sound

H/M/L/SL dBA 35/33/31/29 35/33/31/29 35/33/31/29 35/33/31/29
External Static Pressure Pa 40 40

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

Piping Connection

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ 9.5 φ 9.5

Drain mm VP20 (O.D.

φ 26 / I.D. φ 20) VP20 (O.D. φ 26 / I.D. φ 20)

Drawing No. 3D048945C 3D048946C

Model

FDXS50CVMB FDXS60CVMB

Cooling Heating Cooling Heating
Rated Capacity 5.0kW Class 6.0kW Class
Front Panel Color

——

Air Flow Rates

m³/min

(cfm)

H 12.0 (424) 12.0 (424) 16.0 (565) 16.0 (565)

M 11.0 (388) 11.0 (388) 14.8 (523) 14.8 (523)

L 10.0 (353) 10.0 (353) 13.5 (477) 13.5 (477)

SL 8.4 (297) 8.4 (297) 11.2 (395) 11.2 (395)

Fan

Type Sirocco Fan Sirocco Fan
Motor Output W 130 130

Speed Steps 5 Steps, Silent, Auto 5 Steps, Silent, Auto
Air Filter Removable-Washable-Mildew Proof Removable-Washable-Mildew Proof
Running Current (Rated) A 0.64 0.64 0.74 0.74
Power Consumption (Rated) W 140 140 160 160
Power Factor % 95.1 95.1 94.0 94.0
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 200×900×620 200×1,100×620
Packaged Dimensions (H×W×D) mm 266×1,106×751 266×1,306×751
Weight kg 27 30
Gross Weight kg 34 37
Operation

Sound

H/M/L/SL dBA 37/35/33/31 37/35/33/31 38/36/34/32 38/36/34/32
External Static Pressure Pa 40 40

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

Piping Connection

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ12.7 φ12.7

Drain mm VP20 (O.D.

φ 26 / I.D. φ 20) VP20 (O.D. φ 26 / I.D. φ 20)

Drawing No. 3D052132 3D0452133

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

SiENBE18-621

Specifications 17

50Hz 230V

Note: The operating sound is based on the rear side suction inlet and the external static pressure 30 Pa.

Operating sound for under side suction inlet : [operating sound for rear side suction inlet] +6 dB.
However, when installation to which the external static pressure becomes low is carried out,
6 dB or more may go up.

Model

FDXS25EAVMB FDXS35EAVMB

Cooling Heating Cooling Heating
Rated Capacity 2.5kW Class 3.5kW Class
Front Panel Color

——

Air Flow Rates

m³/min

(cfm)

H 8.7 (307) 8.7 (307) 8.7 (307) 8.7 (307)

M 8.0 (282) 8.0 (282) 8.0 (282) 8.0 (282)

L 7.3 (258) 7.3 (258) 7.3 (258) 7.3 (258)

SL 6.2 (219) 6.2 (219) 6.2 (219) 6.2 (219)

Fan

Type Sirocco Fan Sirocco Fan
Motor Output W 62 62

Speed Steps 5 Steps, Silent, Auto 5 Steps, Silent, Auto
Air Filter Removable-Washable-Mildew Proof Removable-Washable-Mildew Proof
Running Current (Rated) A 0.48 0.48 0.48 0.48
Power Consumption (Rated) W 71 71 71 71
Power Factor % 64.3 64.3 64.3 64.3
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 200×700×620 200×700×620
Packaged Dimensions (H×W×D) mm 274×906×751 274×906×751
Weight kg 21 21
Gross Weight kg 29 29
Operation

Sound

H/M/L/SL dBA 35/33/31/29 35/33/31/29 35/33/31/29 35/33/31/29
External Static Pressure Pa 30 30

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

Piping Connection

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ 9.5 φ 9.5

Drain mm VP20 (O.D.

φ 26 / I.D. φ 20) VP20 (O.D. φ 26 / I.D. φ 20)

Drawing No. 3D051881A 3D051883A

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

Specifications SiENBE18-621

18 Specifications

Floor / Ceiling Suspended Dual Type

50Hz 230V

Model

FLXS25BAVMB FLXS35BAVMB

Cooling Heating Cooling Heating
Rated Capacity 2.5kW Class 3.5kW Class
Front Panel Color Almond White Almond White

Air Flow Rates

m³/min

(cfm)

H 7.6 (268) 9.2 (325) 8.6 (304) 9.8 (346)

M 6.8 (240) 8.3 (293) 7.6 (268) 8.9 (314)

L 6.0 (212) 7.4 (261) 6.6 (233) 8.0 (282)

SL 5.2 (184) 6.6 (233) 5.6 (198) 7.2 (254)

Fan

Type Sirocco Fan Sirocco Fan
Motor Output W 34 34

Speed Steps 5 Steps, Silent, Auto 5 Steps, Silent, Auto
Air Direction Control Right, Left, Horizontal, Downward Right, Left, Horizontal, Downward
Air Filter Removable-Washable-Mildew Proof Removable-Washable-Mildew Proof
Running Current (Rated) A 0.32 0.34 0.36 0.36
Power Consumption (Rated) W 70 74 78 78
Power Factor % 95.1 94.6 94.2 94.2
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 490×1,050×200 490×1,050×200
Packaged Dimensions (H×W×D) mm 566×1,100×280 566×1,100×280
Weight kg 16 16
Gross Weight kg 22 22
Operation

Sound

H/M/L/SL dBA 37/34/31/28 37/34/31/29 38/35/32/29 39/36/33/30
Sound Power H dBA 53 — 54 —

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

Piping Connection

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ 9.5 φ 9.5

Drain mm

φ18.0 φ18.0

Drawing No. 3D050866 3D050868

Model

FLXS50BAVMB FLXS60BAVMB

Cooling Heating Cooling Heating
Rated Capacity 5.0kW Class 6.0kW Class
Front Panel Color Almond White Almond White

Air Flow Rates

m³/min

(cfm)

H 11.4 (402) 12.1 (427) 12.0 (424) 12.8 (452)

M 10.0 (353) 9.8 (346) 10.7 (378) 10.6 (374)

L 8.5 (300) 7.5 (265) 9.3 (328) 8.4 (297)

SL 7.5 (265) 6.8 (240) 8.3 (293) 7.5 (265)

Fan

Type Sirocco Fan Sirocco Fan
Motor Output W 34 34

Speed Steps 5 Steps, Silent, Auto 5 Steps, Silent, Auto
Air Direction Control Right, Left, Horizontal, Downward Right, Left, Horizontal, Downward
Air Filter Removable-Washable-Mildew Proof Removable-Washable-Mildew Proof
Running Current (Rated) A 0.45 0.45 0.47 0.45
Power Consumption (Rated) W 96 96 98 96
Power Factor % 92.8 92.8 90.7 92.8
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 490×1,050×200 490×1,050×200
Packaged Dimensions (H×W×D) mm 280×1,100×566 280×1,100×566
Weight kg 17 17
Gross Weight kg 24 24
Operation

Sound

H/M/L/SL dBA 47/43/39/36 46/41/35/33 48/45/41/39 47/42/37/34
Sound Power H dBA 63 32 64 63

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

Piping Connection

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ12.7 φ12.7

Drain mm

φ18.0 φ18.0

Drawing No. 3D050897 3D050882

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3

SiENBE18-621

Specifications 19

Floor Standing Type

50Hz 230V

Model

FVXS25BAVMB FVXS35BAVMB

Cooling Heating Cooling Heating
Rated Capacity 2.5kW Class 3.5kW Class
Front Panel Color Almond White Almond White
Air Flow Rates

m³/min

(cfm)

H 8.1 (286) 9.2 (325) 8.3 (293) 9.2 (325)

M 6.2 (219) 7.0 (247) 6.3 (222) 7.1 (251)

L 4.3 (152) 4.8 (169) 4.3 (152) 5.0 (177)

SL 3.4 (120) 3.5 (124) 3.4 (120) 3.6 (127)

Fan

Type Cross Flow Fan Cross Flow Fan
Motor Output W 14+14 14+14

Speed Steps 5 Steps, Silent, Auto 5 Steps, Silent, Auto
Air Direction Control Right, Left, Horizontal, Upward Right, Left, Horizontal, Upward
Air Filter Removable-Washable-Mildew Proof Removable-Washable-Mildew Proof
Running Current (Rated) A 0.14 0.14 0.14 0.14
Power Consumption (Rated) W 32 32 32 32
Power Factor % 99.4 99.4 99.4 99.4
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 600×650×195 600×650×195
Packaged Dimensions (H×W×D) mm 714×770×294 714×770×294
Weight kg 13 13
Gross Weight kg 19 19
Operation

Sound

H/M/L/SL

dBA

38/32/26/23 38/32/26/23 39/33/27/24 39/34/29/26

Sound Power H dBA 54 — 55 —
Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes

Piping Connection

Liquid mm

φ

6.4

φ

6.4

Gas mm

φ 9.5 φ 9.5

Drain mm

φ18.0 φ18.0

Drawing No. 3D050874 3D050876

Model

FVXS50BAVMB

Cooling Heating
Rated Capacity 5.0kW Class
Front Panel Color Almond White

Air Flow Rates

m³/min

(cfm)

H 10.8 (381) 13.2 (466)

M 9.2 (325) 11.3 (399)

L 7.7 (272) 9.4 (332)

SL 6.7 (237) 8.3 (293)

Fan

Type Cross Flow Fan
Motor Output W 14+14

Speed Steps 5 Steps, Silent, Auto
Air Direction Control Right, Left, Horizontal, Upward
Air Filter Removable-Washable-Mildew Proof
Running Current (Rated) A 0.26 0.32
Power Consumption (Rated) W 55 70
Power Factor % 92.0 95.1
Temperature Control Microcomputer Control
Dimensions (H×W×D) mm 600×650×195
Packaged Dimensions (H×W×D) mm 714×770×294
Weight kg 13
Gross Weight kg 19
Operation

Sound

H/M/L/SL

dBA

44/40/36/33 45/40/36/33

Sound Power H dBA 56 57
Heat Insulation Both Liquid and Gas Pipes

Piping Connection

Liquid mm

φ

6.4

Gas mm

φ12.7

Drain mm

φ20.0

Drawing No. 3D050895

Conversion Formulae

kcal/h=kW×860

Btu/h=kW×3414

cfm=m³/min×35.3