Daikin E Series User manual

SiENBE12-620
E-Series
Service
Manual
[Applied Models]
zInverter Multi : Cooling Only
zInverter Multi : Heat Pump

SiENBE12-620
Table of Contents i
SUPER MULTI NX
E-Series
zCooling Only
Indoor Unit
FTKS20D3VMW(L) FDKS25EAVMB FVKS25BAVMB FHQ35BVV1B
FTKS25D3VMW(L) FDKS35EAVMB FVKS35BAVMB FHQ50BVV1B
FTKS35D3VMW(L) FDKS25CAVMB FVKS50BAVMB
FTKS50D2V1W(L) FDKS35CAVMB FLKS25BAVMB
FTKS20CAVMB FDKS50CVMB FLKS35BAVMB
FTKS25CAVMB FLKS50BAVMB
FTKS35CAVMB
FTKS50EV1B
Outdoor Unit
3MKS50E2(3)V1B 4MKS58E2(3)V1B
zHeat Pump
Indoor Unit
FTXG25EV1BW(S) FDXS25EAVMB FVXS25BAVMB FHQ35BVV1B
FTXG35EV1BW(S) FDXS35EAVMB FVXS35BAVMB FHQ50BVV1B
CTXG50EV1BW(S) FDXS25CAVMB FVXS50BAVMB
FTXS20D3VMW(L) FDXS35CAVMB FLXS25BAVMB
FTXS25D3VMW(L) FDXS50CVMB FLXS35BAVMB
FTXS35D3VMW(L) FLXS50BAVMB
FTXS50D2V1W(L)
FTXS20CAVMB
FTXS25CAVMB
FTXS35CAVMB
FTXS50EV1B
ATXG25EV1B ATXS20E2V1B ATXS20DAVMB ATX50EV1B
ATXG35EV1B ATXS25E2V1B ATXS25DAVMB
ATXG50EV1B ATXS35E2V1B ATXS35DAVMB
ATXS50E2V1B
Outdoor Unit
2MXS52E2(3)V1B 3MXS52E2(3)V1B
2AMX52E2(3)V1B 3AMX52E2(3)V1B

SiENBE12-620
ii Table of Contents
1. Introduction .............................................................................................v
1.1 Safety Cautions........................................................................................v
Part 1 List of Functions ................................................................1
1. List of Functions......................................................................................2
1.1 Cooling Only Models ................................................................................2
1.2 Heat Pump Models...................................................................................7
Part 2 Specifications ..................................................................15
1. Specifications........................................................................................16
1.1 Indoor Units - Cooling Only ....................................................................16
1.2 Outdoor Units - Cooling Only .................................................................24
1.3 Indoor Units - Heat Pump.......................................................................25
1.4 Outdoor Units - Heat Pump....................................................................38
Part 3 Printed Circuit Board Connector Wiring Diagram ...........41
1. Printed Circuit Board Connector Wiring Diagram..................................42
1.1 Wall Mounted Type ................................................................................42
1.2 Duct Connected Type.............................................................................51
1.3 Floor / Ceiling Suspended Dual Type.....................................................53
1.4 Floor Standing Type...............................................................................56
1.5 Ceiling Suspended Type ........................................................................59
1.6 Outdoor Units .........................................................................................61
Part 4 Function and Control........................................................65
1. Main Functions......................................................................................66
1.1 Frequency Principle................................................................................66
1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing ..........68
1.3 Operation Starting Control......................................................................69
1.4 Fan Speed Control for Indoor Units........................................................70
1.5 Programme Dry Function .......................................................................71
1.6 Automatic Operation...............................................................................72
1.7 Thermostat Control.................................................................................73
1.8 Night Set Mode.......................................................................................74
1.9 ECONO Mode ........................................................................................75
1.10 INTELLIGENT EYE (Wall Mounted Type Only) .....................................76
1.11 HOME LEAVE Operation .......................................................................78
1.12 Inverter POWERFUL Operation.............................................................79
1.13 Other Functions......................................................................................80
2. Function of Main Structural Parts..........................................................82
2.1 Main Structural Parts..............................................................................82
2.2 Function of Thermistor ...........................................................................83
3. Control Specification .............................................................................87
3.1 Mode Hierarchy......................................................................................87
3.2 Frequency Control..................................................................................88
3.3 Controls at Mode Changing / Start-up....................................................90
3.4 Discharge Pipe Control ..........................................................................92
3.5 Input Current Control..............................................................................92
3.6 Freeze-up Protection Control .................................................................93

SiENBE12-620
Table of Contents iii
3.7 Heating Peak-cut Control .......................................................................93
3.8 Fan Control.............................................................................................94
3.9 Liquid Compression Protection Function 2.............................................94
3.10 Defrost Control .......................................................................................95
3.11 Electronic Expansion Valve Control .......................................................96
3.12 Malfunctions .........................................................................................100
3.13 Forced Operation Mode .......................................................................101
3.14 Wiring-Error Check...............................................................................102
3.15 Additional Function...............................................................................104
Part 5 System Configuration.....................................................107
1. System Configuration..........................................................................108
1.1 Operation Instructions ..........................................................................108
2. Instruction............................................................................................109
2.1 Wall Mounted, Duct, Floor/Ceiling, Floor Standing Type .....................109
2.2 Ceiling Suspended Type ......................................................................192
Part 6 Service Diagnosis...........................................................203
1. Caution for Diagnosis..........................................................................204
1.1 Troubleshooting with Operation Lamp .................................................204
2. Problem Symptoms and Measures.....................................................206
3. Service Check Function ......................................................................207
4. Code Indication on the remote control ................................................210
4.1 Error Codes and Description of Fault...................................................210
5. Troubleshooting ..................................................................................211
5.1 Indoor Units..........................................................................................211
5.2 Outdoor Units .......................................................................................212
5.3 Indoor Unit PCB Abnormality ...............................................................213
5.4 Freeze-up Protection Control or High Pressure Control.......................214
5.5 Fan Motor or Related Abnormality .......................................................216
5.6 Thermistor or Related Abnormality (Indoor Unit)..................................219
5.7 Shutter Drive Motor / Shutter Limit Switch Abnormality .......................220
5.8 Signal Transmission Error (between Indoor and Outdoor Units)..........221
5.9 Unspecified Voltage (between Indoor and Outdoor Units)...................222
5.10 Freeze-up Protection Control ...............................................................223
5.11 Outdoor Unit PCB Abnormality.............................................................225
5.12 OL Activation (Compressor Overload) .................................................226
5.13 Compressor Lock .................................................................................227
5.14 DC Fan Lock ........................................................................................228
5.15 Input Over Current Detection ...............................................................229
5.16 Discharge Pipe Temperature Control...................................................231
5.17 High Pressure Control in Cooling.........................................................232
5.18 Compressor Sensor System Abnormality ............................................234
5.19 Position Sensor Abnormality ................................................................236
5.20 CT or Related Abnormality...................................................................237
5.21 Thermistor or Related Abnormality (Outdoor Unit)...............................239
5.22 Electrical Box Temperature Rise..........................................................241
5.23 Radiation Fin Temperature Rise ..........................................................243
5.24 Output Over Current Detection.............................................................245
5.25 Insufficient Gas.....................................................................................247

SiENBE12-620
iv Table of Contents
5.26 Low-voltage Detection or Over-voltage Detection................................249
5.27 Signal Transmission Error (on Outdoor Unit PCB)...............................250
5.28 Anti-icing Function in Other Rooms / Unspecified Voltage
(between Indoor and Outdoor Units)....................................................251
6. Check..................................................................................................252
6.1 How to Check.......................................................................................252
Part 7 Removal Procedure........................................................263
1. Outdoor Unit........................................................................................264
1.1 Removal of the Panels and Plates .......................................................264
1.2 Removal of the Electrical Box ..............................................................269
1.3 Removal of the PCB.............................................................................276
1.4 Removal of the Propeller Fan / Fan Motor ...........................................282
1.5 Removal of the Sound Blanket.............................................................284
1.6 Removal of Electronic Expansion Valve Coil,
Four Way Valve Coil and Thermistor ...................................................288
1.7 Removal of the Distributor....................................................................291
1.8 Removal of the Four Way Valve...........................................................292
1.9 Removal of the Compressor.................................................................293
Part 8 Others.............................................................................295
1. Others .................................................................................................296
1.1 Test Run from the remote control.........................................................296
1.2 Jumper Settings ...................................................................................297
Part 9 Appendix.........................................................................299
1. Piping Diagrams..................................................................................300
1.1 Indoor Units..........................................................................................300
1.2 Outdoor Units .......................................................................................306
2. Wiring Diagrams..................................................................................308
2.1 Indoor Units..........................................................................................308
2.2 Outdoor Units .......................................................................................313
Index .............................................................................................i
Drawings & Flow Charts ...............................................................vi

SiENBE12-620 Introduction
v
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 refrigerant gas 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 SiENBE12-620
vi
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 installation 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

SiENBE12-620 Introduction
vii
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 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 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 SiENBE12-620
viii
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 MΩor 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.

SiENBE12-620
List of Functions 1
Part 1
List of Functions
1. List of Functions......................................................................................2
1.1 Cooling Only Models ................................................................................2
1.2 Heat Pump Models...................................................................................7

List of Functions SiENBE12-620
2List of Functions
1. List of Functions
1.1 Cooling Only Models
Category Functions
FTKS20-35D3VMW(L) FTKS50D2V1W(L)
Category Functions
FTKS20-35D3VMW(L) FTKS50D2V1W(L)
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 — — Longlife 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 (Non-
Inverter) — — 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

SiENBE12-620 List of Functions
List of Functions 3
Category Functions
FTKS20-35CAVMB FTKS50EV1B
Category Functions
FTKS20-35CAVMB FTKS50EV1B
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 — — Longlife 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 (Non-
Inverter) — — 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 SiENBE12-620
4List of Functions
Category Functions
FDKS25/35CAVMB FDKS50CVMB FDKS25/35EAVMB
Category Functions
FDKS25/35CAVMB FDKS50CVMB FDKS25/35EAVMB
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 — — — 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) ——— 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

SiENBE12-620 List of Functions
List of Functions 5
Category Functions
FLKS25-50BAVMB FVKS25-50BAVMB FHQ35/50BVV1B
Category Functions
FLKS25-50BAVMB FVKS25-50BAVMB FHQ35/50BVV1B
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 — — — 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) ——— 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

List of Functions SiENBE12-620
6List of Functions
Category Functions
3MKS50E2(3)V1B 4MKS58E2(3)V1B
Category Functions
3MKS50E2(3)V1B 4MKS58E2(3)V1B
Basic
Function
Inverter (with Inverter Power Control) {
Health &
Clean
Air Purifying Filter with Bacteriostatic &
Virustatic Functions —
Operation Limit for Cooling (°CDB) –10 ~
46 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 — 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) —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

SiENBE12-620 List of Functions
List of Functions 7
1.2 Heat Pump Models
Category Functions
FTXG25/35EV1BW(S) CTXG50EV1BW(S) FTXS20-35D3VMW(L)
Category Functions
FTXG25/35EV1BW(S) CTXG50EV1BW(S) FTXS20-35D3VMW(L)
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 — — — Longlife 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 (Non-
Inverter) — — — 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 — — — Remote Control Adapter
(Normal Open Contact) (Option) {{{
Home Leave Operation — — —
ECONO Mode — — {DIII-NET Compatible (Adapter)
(Option) {{{
Indoor Unit On/Off Switch {{{
remote control Wireless {{{
Signal Reception Indicator {{{ Wired — — —
Temperature Display — — —
Another Room Operation — — —
Note: {: Holding Functions
— : No Functions

List of Functions SiENBE12-620
8List of Functions
Category Functions
FTXS50D2V1W(L) FTXS20-35CAVMB FTXS50EV1B
Category Functions
FTXS50D2V1W(L) FTXS20-35CAVMB FTXS50EV1B
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 — — — Longlife Filter (Option) — — —
Rotary Compressor — — — Mold Proof Air Filter {{{
Reluctance DC Motor — — — Wipe-clean Flat Panel {{{
Comfortable
Airflow
Power-Airflow Flap — — — Washable Grille — — —
Power-Airflow Dual Flaps {{{ Filter Cleaning Indicator — — —
Power-Airflow Diffuser — — — Mold Proof Operation — — —
Wide-Angle Louvers {{{ Heating Dry Operation — — —
Vertical Auto-Swing (Up and Down) {{{ Good-Sleep Cooling Operation — — —
Horizontal Auto-Swing (Right and Left) — — {
Timer
24-Hour On/Off Timer {{{
3-D Airflow — — {72-Hour On/Off Timer — — —
Comfort Airflow Mode {— — Night Set Mode {{{
3-Step Airflow (H/P Only) — — —
Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) {{{
Comfort
Control
Auto Fan Speed {{{ Self-Diagnosis (Digital, LED) Display {{{
Indoor Unit Silent Operation {{{ Wiring Error Check — — —
Night Quiet Mode (Automatic) — — — Anticorrosion Treatment of Outdoor
Heat Exchanger ———
Outdoor Unit Silent Operation
(Manual) ———
Intelligent Eye {{{
Flexibility
Multi-Split / Split Type Compatible
Indoor Unit {{{
Quick Warming Function — — —
Hot-Start Function {{{ Flexible Voltage Correspondence — {—
Automatic Defrosting — — — High Ceiling Application — — —
Operation
Automatic Operation {{{ Chargeless — — —
Programme Dry Function {{{ Either side Drain (Right or Left) {{{
Fan Only {{{ Power Selection — — —
Lifestyle
Convenience
New Powerful Operation (Non-
Inverter) ———
Remote
Control
5-Rooms Centralized Controller
(Option) {{{
Inverter Powerful Operation {{{ Remote Control Adapter
(Normal Open-Pulse Contact) (Option) {{{
Priority-Room Setting — — —
Cooling / Heating Mode Lock — — — Remote Control Adapter
(Normal Open Contact) (Option) {{{
Home Leave Operation — {{
ECONO Mode {—— DIII-NET Compatible (Adapter)
(Option) {{{
Indoor Unit On/Off Switch {{{
remote control Wireless {{{
Signal Reception Indicator {{{ Wired — — —
Temperature Display — — —
Another Room Operation — — —
Note: {: Holding Functions
— : No Functions

SiENBE12-620 List of Functions
List of Functions 9
Category Functions
FDXS25/35CAVMB FDXS50CVMB FDXS25/35EAVMB
Category Functions
FDXS25/35CAVMB FDXS50CVMB 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 — — — 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 {{{
3-Step Airflow (H/P Only) — — —
Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) {{{
Comfort
Control
Auto Fan Speed {{{ Self-Diagnosis (Digital, LED) Display {{{
Indoor Unit Silent Operation {{{ Wiring-Error Check — — —
Night Quiet Mode (Automatic) — — — Anticorrosion Treatment of Outdoor
Heat Exchanger ———
Outdoor Unit Silent Operation
(Manual) ———
Flexibility
Multi-Split / Split Type Compatible
Indoor Unit {{{
Intelligent Eye — — — Flexible Voltage Correspondence {{{
Quick Warming Function — — — High Ceiling Application — — —
Hot-Start Function {{{ Chargeless — — —
Automatic Defrosting — — — Either Side Drain (Right or Left) — — —
Operation
Automatic Operation {{{ Power-Selection — — —
Programme Dry Function {{{
Remote
Control
5-Rooms Centralized Controller
(Option) {{{
Fan Only {{{ Remote Control Adapter
(Normal Open-Pulse Contact) (Option) {{{
Lifestyle
Convenience
New Powerful Operation
(Non-Inverter) ——— Remote Control Adapter (Normal Open Contact) (Option) {{{
Inverter Powerful Operation {{{ DIII-NET Compatible (Adapter)
(Option) {{{
Priority-Room Setting — — — remote control Wireless {{{
Cooling / Heating Mode Lock — — — Wired — — —
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 SiENBE12-620
10 List of Functions
Category Functions
FLXS25-50BAVMB FVXS25-50BAVMB FHQ35/50BVV1B
Category Functions
FLXS25-50BAVMB FVXS25-50BAVMB FHQ35/50BVV1B
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 — — — 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) ——— 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

SiENBE12-620 List of Functions
List of Functions 11
Category Functions
2MXS52E2(3)V1B 3MXS52E2(3)V1B
Category Functions
2MXS52E2(3)V1B 3MXS52E2(3)V1B
Basic
Function
Inverter (with Inverter Power Control) {
Health &
Clean
Air Purifying Filter with Bacteriostatic &
Virustatic Functions —
Operation Limit for Cooling (°CDB) –10 ~
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 {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 —
3-Step Airflow (H/P Only) —
Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) —
Comfort
Control
Auto Fan Speed — Self-Diagnosis (Digital, LED) Display {
Indoor Unit Silent Operation — Wiring-Error Check {
Night Quiet Mode (Automatic) — Anticorrosion Treatment of Outdoor
Heat Exchanger {
Outdoor Unit Silent Operation
(Manual) {
Flexibility
Multi-Split / Split Type Compatible
Indoor Unit —
Intelligent Eye {Flexible Voltage Correspondence —
Quick Warming Function — High Ceiling Application —
Hot-Start Function {Chargeless 30m
Automatic Defrosting — Either Side Drain (Right or Left) —
Operation
Automatic Operation {Power-Selection —
Programme Dry Function —
Remote
Control
5-Rooms Centralized Controller
(Option) —
Fan Only — Remote Control Adapter
(Normal Open-Pulse Contact) (Option) —
Lifestyle
Convenience
New Powerful Operation
(Non-Inverter) —Remote Control Adapter (Normal Open Contact) (Option) —
Inverter Powerful Operation — DIII-NET Compatible (Adapter)
(Option) —
Priority-Room Setting —remote control Wireless —
Cooling / Heating Mode Lock {Wired —
Home Leave Operation {
ECONO Mode —
Indoor Unit On/Off Switch —
Signal Reception Indicator —
Temperature Display —
Another Room Operation —
Note: {: Holding Functions
— : No Functions