Daikin E Series User manual

SiBE12- 817
[Applied Models]
 Inverter Multi : Cooling Only
 Inverter Multi : Heat Pump
E-Series

SiBE12-817
Table of Contents i
SUPER MULTI NX
E-Series
zCooling Only
Indoor Unit
FTXS20G2V1B FDKS50CVMB FLKS25BAVMB
FTXS25G2V1B FDKS25EAVMB FLKS35BAVMB
FTXS35G2V1B FDKS35EAVMB FLKS50BAVMB
FTXS42G2V1B FVXS25FV1B
FTXS50G2V1B FVXS35FV1B
FVXS50FV1B
FHQ35BVV1B
FHQ50BVV1B
Outdoor Unit
3MKS50E3V1B 4MKS58E3V1B
zHeat Pump
Indoor Unit
FTXG25EV1BW FDXS50CVMB FLXS25BAVMB
FTXG25EV1BS FDXS25EAVMB FLXS35BAVMB
FTXG35EV1BW FDXS35EAVMB FLXS50BAVMB
FTXG35EV1BS FVXS25FV1B
CTXG50EV1BW FVXS35FV1B
CTXG50EV1BS FVXS50FV1B
FTXS20G2V1B FHQ35BVV1B
FTXS25G2V1B FHQ50BVV1B
FTXS35G2V1B
FTXS42G2V1B
FTXS50G2V1B
Outdoor Unit
3MXS52E3V1B

SiBE12-817
ii Table of Contents
1. Introduction .............................................................................................v
1.1 Safety Cautions ........................................................................................ v
1.2 Used Icons .............................................................................................. ix
Part 1 List of Functions ................................................................ 1
1. List of Functions ......................................................................................2
1.1 Cooling Only Models ................................................................................2
1.2 Heat Pump Models...................................................................................6
Part 2 Specifications .................................................................. 11
1. Specifications ........................................................................................12
1.1 Indoor Units - Cooling Only ....................................................................12
1.2 Outdoor Units - Cooling Only .................................................................18
1.3 Indoor Units - Heat Pump.......................................................................19
1.4 Outdoor Units - Heat Pump ....................................................................26
Part 3 Printed Circuit Board Connector Wiring Diagram ........... 27
1. Printed Circuit Board Connector Wiring Diagram..................................28
1.1 Wall Mounted Type ................................................................................28
1.2 Duct Connected Type.............................................................................32
1.3 Floor / Ceiling Suspended Dual Type.....................................................34
1.4 Floor Standing Type ...............................................................................37
1.5 Ceiling Suspended Type ........................................................................39
1.6 Outdoor Units .........................................................................................41
Part 4 Function and Control........................................................ 43
1. Main Functions......................................................................................44
1.1 Frequency Principle................................................................................44
1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing ..........46
1.3 Operation Starting Control......................................................................48
1.4 Fan Speed Control for Indoor Units........................................................49
1.5 Programme Dry Function .......................................................................50
1.6 Automatic Operation...............................................................................51
1.7 Thermostat Control.................................................................................52
1.8 Night Set Mode.......................................................................................53
1.9 ECONO Mode ........................................................................................54
1.10 INTELLIGENT EYE (FTXG, CTXG) .......................................................55
1.11 2 AREA INTELLIGENT EYE ..................................................................57
1.12 HOME LEAVE Operation .......................................................................59
1.13 Inverter POWERFUL Operation .............................................................60
1.14 Other Functions......................................................................................61
2. Function of Main Structural Parts..........................................................63
2.1 Main Structural Parts..............................................................................63
2.2 Function of Thermistor ...........................................................................64
3. Control Specification .............................................................................68
3.1 Mode Hierarchy ......................................................................................68
3.2 Frequency Control..................................................................................69
3.3 Controls at Mode Changing / Start-up....................................................72
3.4 Discharge Pipe Temperature Control.....................................................74

SiBE12-817
Table of Contents iii
3.5 Input Current Control..............................................................................74
3.6 Freeze-up Protection Control .................................................................75
3.7 Heating Peak-cut Control .......................................................................75
3.8 Fan Control.............................................................................................76
3.9 Liquid Compression Protection Function 2.............................................76
3.10 Defrost Control .......................................................................................77
3.11 Electronic Expansion Valve Control .......................................................78
3.12 Malfunctions ...........................................................................................82
3.13 Forced Operation Mode .........................................................................83
3.14 Wiring-Error Check.................................................................................84
3.15 Additional Function.................................................................................86
Part 5 Operation Manual ............................................................. 89
1. System Configuration............................................................................90
1.1 Operation Instructions ............................................................................90
2. Instruction..............................................................................................91
2.1 FTXG, CTXG, FDK(X)S, FLK(X)S Series ..............................................91
2.2 FTXS, FVXS Series..............................................................................133
2.3 FHQ Series...........................................................................................175
Part 6 Service Diagnosis........................................................... 189
1. Caution for Diagnosis..........................................................................190
1.1 Troubleshooting with Operation Lamp .................................................190
2. Problem Symptoms and Measures .....................................................192
3. Service Check Function ......................................................................193
3.1 Check Method 1 ...................................................................................193
3.2 Check Method 2 ...................................................................................195
4. Code Indication on the Remote Controller ..........................................197
4.1 Error Codes and Description of Fault ...................................................197
5. Troubleshooting ..................................................................................198
5.1 Indoor Units ..........................................................................................198
5.2 Outdoor Units .......................................................................................199
5.3 Indoor Unit PCB Abnormality ...............................................................200
5.4 Freeze-up Protection Control or High Pressure Control.......................201
5.5 Fan Motor or Related Abnormality .......................................................203
5.6 Thermistor or Related Abnormality (Indoor Unit)..................................206
5.7 Front Panel Open / Close Fault............................................................207
5.8 Signal Transmission Error (between Indoor and Outdoor Unit) ...........208
5.9 Unspecified Voltage (between Indoor and Outdoor Units) ...................209
5.10 Freeze-up Protection Control ...............................................................210
5.11 Outdoor Unit PCB Abnormality.............................................................212
5.12 OL Activation (Compressor Overload) .................................................213
5.13 Compressor Lock .................................................................................214
5.14 DC Fan Lock ........................................................................................215
5.15 Input Over Current Detection ...............................................................216
5.16 Discharge Pipe Temperature Control...................................................218
5.17 High Pressure Control in Cooling .........................................................219
5.18 Compressor Sensor System Abnormality ............................................221
5.19 Position Sensor Abnormality ................................................................223
5.20 CT or Related Abnormality ...................................................................224

SiBE12-817
iv Table of Contents
5.21 Thermistor or Related Abnormality (Outdoor Unit)...............................226
5.22 Electrical Box Temperature Rise..........................................................228
5.23 Radiation Fin Temperature Rise ..........................................................230
5.24 Output Over Current Detection.............................................................232
5.25 Insufficient Gas.....................................................................................234
5.26 Low-voltage Detection or Over-voltage Detection................................236
5.27 Signal Transmission Error (on Outdoor Unit PCB)...............................237
5.28 Anti-icing Function in Other Rooms / Unspecified Voltage
(between Indoor and Outdoor Units) ....................................................238
6. Check ..................................................................................................239
6.1 How to Check .......................................................................................239
Part 7 Removal Procedure ........................................................ 249
1. Outdoor Unit........................................................................................250
1.1 Removal of the Panels and Plates .......................................................250
1.2 Removal of the Electrical Box ..............................................................255
1.3 Removal of the PCB.............................................................................262
1.4 Removal of the Propeller Fan / Fan Motor ...........................................268
1.5 Removal of the Sound Blanket.............................................................270
1.6 Removal of Electronic Expansion Valve Coil, Four Way Valve Coil and
Thermistor ............................................................................................274
1.7 Removal of the Distributor....................................................................277
1.8 Removal of the Four Way Valve...........................................................278
1.9 Removal of the Compressor.................................................................279
Part 8 Others ............................................................................. 281
1. Others .................................................................................................282
1.1 Test Run from the Remote Controller ..................................................282
1.2 Jumper Settings ...................................................................................283
1.3 Application of Silicon Grease to a Power Transistor and
a Diode Bridge......................................................................................284
Part 9 Appendix......................................................................... 285
1. Piping Diagrams..................................................................................286
1.1 Indoor Units ..........................................................................................286
1.2 Outdoor Units .......................................................................................290
2. Wiring Diagrams..................................................................................292
2.1 Indoor Units ..........................................................................................292
2.2 Outdoor Units .......................................................................................295
Index ............................................................................................. i
Drawings & Flow Charts ................................................................ v

SiBE12-817 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 the item for which caution must be exercised.
The pictogram shows the item to which attention must be paid.
This symbol indicates the prohibited action.
The prohibited item or action is shown in the illustration or near the symbol.
This symbol indicates the action that must be taken, or the instruction.
The instruction is shown in the illustration or near the symbol.
After the repair work is complete, be sure to conduct a test operation to ensure that the
equipment operates normally, and explain the cautions for operating the product to the
customer.
1.1.1 Cautions Regarding Safety of Workers
Warning
Be sure to disconnect the power cable plug from the plug socket before
disassembling the equipment for repair.
Working on the equipment that is connected to the power supply may cause an
electrical shook.
If it is necessary to supply power to the equipment to conduct the repair or
inspecting the circuits, do not touch any electrically charged sections of the
equipment.
If the refrigerant gas is discharged during the repair work, do not touch the
discharged refrigerant gas.
The refrigerant gas may cause frostbite.
When disconnecting the suction or discharge pipe of the compressor at the
welded section, evacuate the refrigerant gas completely at a well-ventilated
place first.
If there is a gas remaining inside the compressor, the refrigerant gas or
refrigerating machine oil discharges when the pipe is disconnected, and it may
cause injury.
If the refrigerant gas leaks during the repair work, ventilate the area. The
refrigerant gas may generate toxic gases when it contacts flames.
The step-up capacitor supplies high-voltage electricity to the electrical
components of the outdoor unit.
Be sure to discharge the capacitor completely before conducting repair work.
A charged capacitor may cause an electrical shock.
Do not start or stop the air conditioner operation by plugging or unplugging the
power cable plug.
Plugging or unplugging the power cable plug to operate the equipment may
cause an electrical shock or fire.

Introduction SiBE12-817
vi
Be sure to wear a safety helmet, gloves, and a safety belt when working at a
high place (more than 2m). Insufficient safety measures may cause a fall
accident.
In case of R410A refrigerant models, be sure to use pipes, flare nuts and tools
for the exclusive use of the R410A refrigerant.
The use of materials for R22 refrigerant models may cause a serious accident
such as a damage of refrigerant cycle as well as an equipment failure.
Warning
Caution
Do not repair the electrical components with wet hands.
Working on the equipment with wet hands may cause an electrical shock.
Do not clean the air conditioner by splashing water.
Washing the unit with water may cause an electrical shock.
Be sure to provide the grounding when repairing the equipment in a humid or
wet place, to avoid electrical shocks.
Be sure to turn off the power switch and unplug the power cable when cleaning
the equipment.
The internal fan rotates at a high speed, and cause injury.
Be sure to conduct repair work with appropriate tools.
The use of inappropriate tools may cause injury.
Be sure to check that the refrigerating cycle section has cooled down enough
before conducting repair work.
Working on the unit when the refrigerating cycle section is hot may cause
burns.
Use the welder in a well-ventilated place.
Using the welder in an enclosed room may cause oxygen deficiency.

SiBE12-817 Introduction
vii
1.1.2 Cautions Regarding Safety of Users
Warning
Be sure to use parts listed in the service parts list of the applicable model and
appropriate tools to conduct repair work. Never attempt to modify the
equipment.
The use of inappropriate parts or tools may cause an electrical shock,
excessive heat generation or fire.
If the power cable and lead wires have scratches or deteriorated, be sure to
replace them.
Damaged cable and wires may cause an electrical shock, excessive heat
generation or fire.
Do not use a joined power cable or extension cable, or share the same power
outlet with other electrical appliances, since it may cause an electrical shock,
excessive heat generation or fire.
Be sure to use an exclusive power circuit for the equipment, and follow the local
technical standards related to the electrical equipment, the internal wiring
regulations, and the instruction manual for installation when conducting
electrical work.
Insufficient power circuit capacity and improper electrical work may cause an
electrical shock or fire.
Be sure to use the specified cable for wiring between the indoor and outdoor
units. Make the connections securely and route the cable properly so that there
is no force pulling the cable at the connection terminals.
Improper connections may cause excessive heat generation or fire.
When wiring between the indoor and outdoor units, make sure that the terminal
cover does not lift off or dismount because of the cable.
If the cover is not mounted properly, the terminal connection section may cause
an electrical shock, excessive heat generation or fire.
Do not damage or modify the power cable.
Damaged or modified power cable may cause an electrical shock or fire.
Placing heavy items on the power cable, and heating or pulling the power cable
may damage the cable.
Do not mix air or gas other than the specified refrigerant (R410A / R22) in the
refrigerant system.
If air enters the refrigerating system, an excessively high pressure results,
causing equipment damage and injury.
If the refrigerant gas leaks, be sure to locate the leaking point and repair it
before charging the refrigerant. After charging refrigerant, make sure that there
is no refrigerant leak.
If the leaking point cannot be located and the repair work must be stopped, be
sure to perform pump-down and close the service valve, to prevent the
refrigerant gas from leaking into the room. The refrigerant gas itself is
harmless, but it may generate toxic gases when it contacts flames, such as fan
and other heaters, stoves and ranges.
When relocating the equipment, make sure that the new installation site has
sufficient strength to withstand the weight of the equipment.
If the installation site does not have sufficient strength and if the installation
work is not conducted securely, the equipment may fall and cause injury.

Introduction SiBE12-817
viii
Check to make sure that the power cable plug is not dirty or loose, then insert
the plug into a power outlet securely.
If the plug has dust or loose connection, it may cause an electrical shock or fire.
Be sure to install the product correctly by using the provided standard
installation frame.
Incorrect use of the installation frame and improper installation may cause the
equipment to fall, resulting in injury.
For unitary type
only
Be sure to install the product securely in the installation frame mounted on the
window frame.
If the unit is not securely mounted, it may fall and cause injury.
For unitary type
only
When replacing the coin battery in the remote controller, be sure to disposed
of the old battery to prevent children from swallowing it.
If a child swallows the coin battery, see a doctor immediately.
Warning
Caution
Installation of a leakage breaker is necessary in some cases depending on the
conditions of the installation site, to prevent electrical shocks.
Do not install the equipment in a place where there is a possibility of
combustible gas leaks.
If the combustible gas leaks and remains around the unit, it may cause a fire.
Check to see if the parts and wires are mounted and connected properly, and
if the connections at the soldered or crimped terminals are secure.
Improper installation and connections may cause excessive heat generation,
fire or an electrical shock.
If the installation platform or frame has corroded, replace it.
Corroded installation platform or frame may cause the unit to fall, resulting in
injury.
Check the grounding, and repair it if the equipment is not properly grounded.
Improper grounding may cause an electrical shock.

SiBE12-817 Introduction
ix
1.2 Used Icons
Icons are used to attract the attention of the reader to specific information. The meaning of each
icon is described in the table below:
Be sure to measure the insulation resistance after the repair, and make sure
that the resistance is 1 MΩor higher.
Faulty insulation may cause an electrical shock.
Be sure to check the drainage of the indoor unit after the repair.
Faulty drainage may cause the water to enter the room and wet the furniture
and floor.
Do not tilt the unit when removing it.
The water inside the unit may spill and wet the furniture and floor.
Be sure to install the packing and seal on the installation frame properly.
If the packing and seal are not installed properly, water may enter the room and
wet the furniture and floor.
For unitary type
only
Caution
Icon Type of
Information
Description
Note:
Note A “note” provides information that is not indispensable, but may
nevertheless be valuable to the reader, such as tips and tricks.
Caution
Caution A “caution” is used when there is danger that the reader, through
incorrect manipulation, may damage equipment, loose data, get
an unexpected result or has to restart (part of) a procedure.
Warning
Warning A “warning” is used when there is danger of personal injury.
Reference A “reference” guides the reader to other places in this binder or
in this manual, where he/she will find additional information on a
specific topic.

Introduction SiBE12-817
x

SiBE12-817
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...................................................................................6

List of Functions SiBE12-817
2List of Functions
1. List of Functions
1.1 Cooling Only Models
Category Functions
FTXS20-50G2V1B
Category Functions
FTXS20-50G2V1B
Basic
Function
Inverter (with Inverter Power Control) {Health &
Clean Air Purifying Filter —
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 — Mold Proof Air Filter {
Reluctance DC Motor — Wipe-clean Flat Panel {
Comfortable
Airflow
Power-Airflow Flap — Washable Grille —
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 Weekly Timer {
Horizontal Auto-Swing (Right and Left) {24-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 Quiet Operation {Anticorrosion Treatment of Outdoor
Heat Exchanger —
Night Quiet Mode (Automatic) —
Outdoor Unit Quiet Operation (Manual) — Flexibility Multi-Split / Split Type Compatible
Indoor Unit {
INTELLIGENT EYE —
2 Area INTELLIGENT EYE {H/P, C/O 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 Adaptor
(Normal Open-Pulse Contact) (Option) {
Inverter POWERFUL Operation {
Priority-Room Setting — Remote Control Adaptor
(Normal Open Contact) (Option) {
Cooling / Heating Mode Lock —
HOME LEAVE Operation — DIII-NET Compatible (Adaptor)
(Option) {
ECONO Mode {Remote
Controller
Wireless {
Indoor Unit On/Off Switch {Wired —
Signal Reception Indicator —
Temperature Display —
Note: {: Holding Functions
— : No Functions

SiBE12-817 List of Functions
List of Functions 3
Category Functions
FDKS50CVMB FDKS25/35EAVMB
Category Functions
FDKS50CVMB FDKS25/35EAVMB
Basic
Function
Inverter (with Inverter Power Control) {{Health &
Clean
Air Purifying Filter — —
Operation Limit for Cooling (°CDB) — — Photocatalytic Deodorizing Filter — —
Operation Limit for Heating (°CWB) — — Air Purifying Filter with Photocatalytic
Deodorizing Function ——
PAM Control — — Titanium Apatite Photocatalytic
Air-Purifying Filter ——
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 Weekly Timer — —
Horizontal Auto-Swing (Right and Left) — — 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 Quiet Operation {{ Wiring-Error Check — —
Night Quiet Mode (Automatic) — — Anticorrosion Treatment of Outdoor
Heat Exchanger ——
Outdoor Unit Quiet Operation (Manual) — — Flexibility Multi-Split / Split Type Compatible
Indoor Unit {{
INTELLIGENT EYE — — H/P, C/O Compatible Indoor Unit — —
2 Area 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 Adaptor
(Normal Open-Pulse Contact) (Option) {{
Lifestyle
Convenience
New POWERFUL Operation
(Non-Inverter) —— Remote Control Adaptor (Normal Open Contact) (Option) {{
Inverter POWERFUL Operation {{ DIII-NET Compatible (Adaptor)
(Option) {{
Priority-Room Setting — — Remote
Controller
Wireless {{
Cooling / Heating Mode Lock — — Wired — —
HOME LEAVE Operation {{
ECONO Mode — —
Indoor Unit On/Off Switch {{
Signal Reception Indicator {{
Temperature Display — —
Note: {: Holding Functions
— : No Functions

List of Functions SiBE12-817
4List of Functions
Category Functions
FLKS25-50BAVMB FVXS25-50FV1B FHQ35-50BVV1B
Category Functions
FLKS25-50BAVMB FVXS25-50FV1B FHQ35-50BVV1B
Basic
Function
Inverter (with Inverter Power Control) {{{ Health &
Clean
Air Purifying Filter {——
Operation Limit for Cooling (°CDB) — — — Photocatalytic Deodorizing Filter {——
Operation Limit for Heating (°CWB) — — — Air Purifying Filter with Photocatalytic
Deodorizing Function ———
PAM Control — — — Titanium Apatite Photocatalytic
Air-Purifying Filter —{—
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 Weekly Timer — {—
Horizontal Auto-Swing (Right and Left) — — —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 Quiet Operation {{—Wiring-Error Check — — —
Night Quiet Mode (Automatic) — — —Anticorrosion Treatment of Outdoor
Heat Exchanger ———
Outdoor Unit Quiet Operation (Manual) — — —Flexibility Multi-Split / Split Type Compatible
Indoor Unit {{{
INTELLIGENT EYE — — —H/P, C/O Compatible Indoor Unit — — —
2 Area 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 Adaptor
(Normal Open-Pulse Contact) (Option) {{—
Lifestyle
Convenience
New POWERFUL Operation
(Non-Inverter) ———Remote Control Adaptor (Normal Open Contact) (Option) {{—
Inverter POWERFUL Operation {{— DIII-NET Compatible (Adaptor) (Option) {{{
Priority-Room Setting — — —Remote
Controller
Wireless {{{
Cooling / Heating Mode Lock — — —Wired — — {
HOME LEAVE Operation {——
ECONO Mode — {—
Indoor Unit On/Off Switch {{—
Signal Reception Indicator {{—
Temperature Display — — —
Note: {: Holding Functions
— : No Functions

SiBE12-817 List of Functions
List of Functions 5
Category Functions
3MKS50E3V1B 4MKS58E3V1B
Category Functions
3MKS50E3V1B 4MKS58E3V1B
Basic
Function
Inverter (with Inverter Power Control) {Health &
Clean
Air Purifying Filter —
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 Weekly Timer —
Horizontal Auto-Swing (Right and Left) — 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 Quiet Operation — Wiring-Error Check {
Night Quiet Mode (Automatic) {Anticorrosion Treatment of Outdoor
Heat Exchanger {
Outdoor Unit Quiet Operation (Manual) {Flexibility Multi-Split / Split Type Compatible
Indoor Unit —
INTELLIGENT EYE — H/P, C/O Compatible Indoor Unit —
2 Area 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 Adaptor
(Normal Open-Pulse Contact) (Option) —
Lifestyle
Convenience
New POWERFUL Operation
(Non-Inverter) —Remote Control Adaptor
(Normal Open Contact) (Option) —
Inverter POWERFUL Operation — DIII-NET Compatible (Adaptor) (Option) —
Priority-Room Setting {Remote
Controller
Wireless —
Cooling / Heating Mode Lock — Wired —
HOME LEAVE Operation —
ECONO Mode —
Indoor Unit On/Off Switch —
Signal Reception Indicator —
Temperature Display —
Note: {: Holding Functions
— : No Functions

List of Functions SiBE12-817
6List of Functions
1.2 Heat Pump Models
Category Functions
FTXG25/35EV1BW(S) CTXG50EV1BW(S) FTXS20-50G2V1B
Category Functions
FTXG25/35EV1BW(S) CTXG50EV1BW(S) FTXS20-50G2V1B
Basic
Function
Inverter (with Inverter Power Control) {{{ Health &
Clean Air Purifying Filter — — —
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 Weekly Timer — — {
Comfort Airflow Mode {{{ 24-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 Quiet Operation {{{ Self-Diagnosis (Digital, LED) Display {{{
Night Quiet Mode (Automatic) — — — Wiring Error Check — — —
Outdoor Unit Quiet Operation (Manual) — — —
Anticorrosion Treatment of Outdoor
Heat Exchanger ———INTELLIGENT EYE {{—
2 Area INTELLIGENT EYE — — {
Quick Warming Function — — — Flexibility Multi-Split / Split Type Compatible
Indoor Unit {—{
Hot-Start Function {{{
Automatic Defrosting — — — H/P, C/O Compatible Indoor Unit — — {
Operation Automatic Operation {{{ Flexible Voltage Correspondence — — —
Programme Dry Function {{{ High Ceiling Application — — —
Fan Only {{{ Chargeless — — —
Lifestyle
Convenience
New POWERFUL Operation
(Non-Inverter) — — — Either Side Drain (Right or Left) {{{
Inverter POWERFUL Operation {{{ Power Selection — — —
Priority-Room Setting — — — Remote
Control
5-Rooms Centralized Controller
(Option) {{{
Cooling / Heating Mode Lock — — — Remote Control Adaptor
(Normal Open-Pulse Contact) (Option) {{{
HOME LEAVE Operation — — — Remote Control Adaptor
(Normal Open Contact) (Option) {{{
ECONO Mode — — {
Indoor Unit On/Off Switch {{{ DIII-NET Compatible (Adaptor) (Option) {{{
Signal Reception Indicator {{— Remote
Controller
Wireless {{{
Temperature Display — — — Wired — — —
Note: {: Holding Functions
— : No Functions

SiBE12-817 List of Functions
List of Functions 7
Category Functions
FDXS50CVMB FDXS25/35EAVMB
Category Functions
FDXS50CVMB FDXS25/35EAVMB
Basic
Function
Inverter (with Inverter Power Control) {{Health &
Clean
Air Purifying Filter — —
Operation Limit for Cooling (°CDB) — — Photocatalytic Deodorizing Filter — —
Operation Limit for Heating (°CWB) — — Air Purifying Filter with Photocatalytic
Deodorizing Function ——
PAM Control — — Titanium Apatite Photocatalytic
Air-Purifying Filter ——
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 Weekly Timer — —
Horizontal Auto-Swing (Right and Left) — — 24-Hour On/Off Timer {{
3-D Airflow — — 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 Quiet Operation {{ Self-Diagnosis (Digital, LED) Display {{
Night Quiet Mode (Automatic) — — Wiring-Error Check — —
Outdoor Unit Quiet Operation (Manual) — — Anticorrosion Treatment of Outdoor
Heat Exchanger ——
INTELLIGENT EYE — — Flexibility Multi-Split / Split Type Compatible
Indoor Unit {{
2 Area INTELLIGENT EYE — — H/P, C/O 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 Adaptor (Normal Open-Pulse Contact) (Option) {{
Inverter POWERFUL Operation {{ Remote Control Adaptor
(Normal Open Contact) (Option) {{
Priority-Room Setting — — DIII-NET Compatible (Adaptor) (Option) {{
Cooling / Heating Mode Lock — — Remote
Controller
Wireless {{
HOME LEAVE Operation {{ Wired — —
ECONO Mode — —
Indoor Unit On/Off Switch {{
Signal Reception Indicator {{
Temperature Display — —
Note: {: Holding Functions
— : No Functions

List of Functions SiBE12-817
8List of Functions
Category Functions
FLXS25-50BAVMB FVXS25-50FV1B FHQ35-50BVV1B
Category Functions
FLXS25-50BAVMB FVXS25-50FV1B FHQ35-50BVV1B
Basic
Function
Inverter (with Inverter Power Control) {{{ Health &
Clean
Air Purifying Filter {——
Operation Limit for Cooling (°CDB) — — — Photocatalytic Deodorizing Filter {——
Operation Limit for Heating (°CWB) — — — Air Purifying Filter with Photocatalytic
Deodorizing Function ———
PAM Control — — — Titanium Apatite Photocatalytic
Air-Purifying Filter —{—
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 Weekly Timer — {—
Horizontal Auto-Swing (Right and Left) — — —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 Quiet Operation {{—Wiring-Error Check — — —
Night Quiet Mode (Automatic) — — —Anticorrosion Treatment of Outdoor
Heat Exchanger ———
Outdoor Unit Quiet Operation (Manual) — — —Flexibility Multi-Split / Split Type Compatible
Indoor Unit {{{
INTELLIGENT EYE — — —H/P, C/O Compatible Indoor Unit — — —
2 Area 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 Adaptor
(Normal Open-Pulse Contact) (Option) {{—
Lifestyle
Convenience
New POWERFUL Operation
(Non-Inverter) ———Remote Control Adaptor (Normal Open Contact) (Option) {{—
Inverter POWERFUL Operation {{— DIII-NET Compatible (Adaptor) (Option) {{{
Priority-Room Setting — — —Remote
Controller
Wireless {{{
Cooling / Heating Mode Lock — — —Wired — — {
HOME LEAVE Operation {——
ECONO Mode — {—
Indoor Unit On/Off Switch {{—
Signal Reception Indicator {{—
Temperature Display — — —
Note: {: Holding Functions
— : No Functions

SiBE12-817 List of Functions
List of Functions 9
Category Functions
3MXS52E3V1B
Category Functions
3MXS52E3V1B
Basic
Function
Inverter (with Inverter Power Control) {Health &
Clean
Air Purifying Filter —
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 Weekly Timer —
Horizontal Auto-Swing (Right and Left) — 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 Quiet Operation — Wiring-Error Check {
Night Quiet Mode (Automatic) {Anticorrosion Treatment of Outdoor
Heat Exchanger {
Outdoor Unit Quiet Operation (Manual) {Flexibility Multi-Split / Split Type Compatible
Indoor Unit —
INTELLIGENT EYE — H/P, C/O Compatible Indoor Unit —
2 Area 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 Adaptor
(Normal Open-Pulse Contact) (Option) —
Lifestyle
Convenience
New POWERFUL Operation
(Non-Inverter) —Remote Control Adaptor (Normal Open Contact) (Option) —
Inverter POWERFUL Operation — DIII-NET Compatible (Adaptor) (Option) —
Priority-Room Setting {Remote
Controller
Wireless —
Cooling / Heating Mode Lock {Wired —
HOME LEAVE Operation —
ECONO Mode —
Indoor Unit On/Off Switch —
Signal Reception Indicator —
Temperature Display —
Note: {: Holding Functions
— : No Functions