Daikin SiEN04-306D User manual

Inverter Pair
Wall Mounted Type B-Series
[Applied Models]
zInverter Pair : Cooling Only
zInverter Pair : Heat Pump
zNon-Inverter Pair : Cooling Only
zNon-Inverter Pair : Heat Pump
SiEN04-306D

SiEN04-306D
Table of Contents i
Inverter Pair
B-Series
Cooling Only
Indoor Unit
<R410A>
FTKS50BVMA FTKS50BVMB FTS50BVMB
FTKS60BVMA FTKS60BVMB FTS60BVMB
FTKS71BVMA FTKS71BVMB FTKS71BAVMB
<R22>
FTKD50BVM FTKD50BVMA FTKD50BVMT FTKD18BVMS
FTKD60BVM FTKD60BVMA FTKD60BVMT FTKD24BVMS
FTKD71BVM FTKD71BVMA FTKD71BVMT FTKD28BVMS
Outdoor Unit
<R410A>
RKS50BVMA RKS50BVMB(9) RKS50B2VMB RS50BVMB
RKS60BVMA RKS60BVMB(9) RKS60B2VMB RS60BVMB
RKS71BVMA RKS71BVMB(9) RKS71B2VMB RS50B2VMB
RKS71B3VMB RS60B2VMB
<R22>
RKD50BVM RKD50BVMA RKD50BVMT RKD18BVMS
RKD60BVM RKD60BVMA RKD60BVMT RKD24BVMS
RKD71BVM RKD71BVMA RKD71BVMT RKD28BVMS
Heat Pump
Indoor Unit
<R410A>
FTXS50BVMA FTXS50BVMB ATXS50CVMB FTYS50BVMB
FTXS60BVMA FTXS60BVMB ATXS50DVMB FTYS60BVMB
FTXS71BVMA FTXS71BVMB FTXS71BAVMB
<R22>
FTXD50BVMA FTXD50BVMT FTXD50BV4
FTXD60BVMA FTXD60BVMT FTXD80CV4
FTXD71BVMA FTXD71BVMT
Outdoor Unit
<R410A>
RXS50BVMA RXS50BVMB ARXS50CVMB RYS50BVMB
RXS60BVMA RXS60BVMB ARXS50C2VMB RYS60BVMB
RXS71BVMA RXS71BVMB RXS50B2VMB RYS50B2VMB
RXS60B2VMB RYS60B2VMB
RXS71B2VMB
RXS71B3VMB
<R22>
RXD50BVMA RXD50BVMT RXD50BV4
RXD60BVMA RXD60BVMT RXD80CV4
RXD71BVMA RXD71BVMT

SiEN04-306D
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 R-410A Series..........................................................................................2
1.2 R22 Series................................................................................................8
Part 2 Specifications .................................................................. 13
1. Specifications ........................................................................................14
1.1 Cooling Only - R-410A Series ................................................................14
1.2 Cooling Only - R22 Series......................................................................18
1.3 Heat Pump - R-410A Series...................................................................22
1.4 Heat Pump - R22 Series ........................................................................29
Part 3 Printed Circuit Board Connector Wiring Diagram ........... 35
1. Printed Circuit Board Connector Wiring Diagram..................................36
1.1 Indoor Unit..............................................................................................36
1.2 Outdoor Unit...........................................................................................38
Part 4 Function and Control........................................................ 41
1. Main Functions......................................................................................42
1.1 Frequency Principle................................................................................42
1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing ..........44
1.3 Fan Speed Control for Indoor Units........................................................45
1.4 Programme Dry Function .......................................................................46
1.5 Automatic Operation...............................................................................47
1.6 Thermostat Control.................................................................................48
1.7 Night Set Mode.......................................................................................49
1.8 INTELLIGENT EYE................................................................................50
1.9 HOME LEAVE Operation .......................................................................52
1.10 Inverter POWERFUL Operation.............................................................53
1.11 Other Functions......................................................................................54
2. Function of Main Structural Parts..........................................................55
2.1 Function of Thermistor ...........................................................................55
3. Control Specification .............................................................................57
3.1 Mode Hierarchy......................................................................................57
3.2 Frequency Control..................................................................................58
3.3 Controls at Mode Changing / Start-up....................................................60
3.4 Discharge Pipe Temperature Control.....................................................61
3.5 Input Current Control..............................................................................61
3.6 Freeze-up Protection Control .................................................................62
3.7 Heating Peak-cut Control .......................................................................62
3.8 Fan Control.............................................................................................63
3.9 Liquid Compression Protection Function 2.............................................63
3.10 Low Hz High Pressure Limit...................................................................64
3.11 Defrost Control .......................................................................................64
3.12 Electronic Expansion Valve Control .......................................................65
3.13 Malfunctions ...........................................................................................68

SiEN04-306D
Table of Contents iii
3.14 Forced Operation Mode .........................................................................69
3.15 Additional Function.................................................................................69
3.16 Facility Setting Switch (cooling at low outdoor temperature)..................70
Part 5 System Configuration....................................................... 71
1. System Configuration............................................................................72
2. Instruction..............................................................................................73
2.1 Safety Precautions .................................................................................73
2.2 Names of Parts.......................................................................................75
2.3 Preparation before Operation.................................................................78
2.4 AUTO · DRY · COOL · HEAT · FAN Operation ......................................81
2.5 Adjusting the Air Flow Direction .............................................................83
2.6 POWERFUL Operation ..........................................................................85
2.7 OUTDOOR UNIT SILENT Operation .....................................................86
2.8 HOME LEAVE Operation .......................................................................87
2.9 INTELLIGENT EYE Operation ...............................................................89
2.10 TIMER Operation ...................................................................................91
2.11 Care and Cleaning .................................................................................93
2.12 Troubleshooting......................................................................................96
Part 6 Service Diagnosis........................................................... 101
1. Caution for Diagnosis..........................................................................102
2. Problem Symptoms and Measures .....................................................103
3. Service Check Function ......................................................................104
4. Troubleshooting ..................................................................................107
4.1 Error Codes and Description................................................................107
4.2 Indoor Unit PCB Abnormality ...............................................................108
4.3 Freeze-up Protection Control or High Pressure Control.......................109
4.4 Fan Motor (DC Motor) or Related Abnormality.....................................111
4.5 Thermistor or Related Abnormality (Indoor Unit)..................................113
4.6 Signal Transmission Error (between Indoor and Outdoor Units)..........114
4.7 OL Activation (Compressor Overload) .................................................115
4.8 Compressor Lock .................................................................................116
4.9 DC Fan Lock ........................................................................................117
4.10 Input Over Current Detection ...............................................................118
4.11 Four Way Valve Abnormality................................................................120
4.12 Discharge Pipe Temperature Control...................................................122
4.13 High Pressure Control in Cooling.........................................................123
4.14 Position Sensor Abnormality ................................................................125
4.15 CT or Related Abnormality...................................................................126
4.16 Thermistor or Related Abnormality (Outdoor Unit)...............................128
4.17 Electrical Box Temperature Rise..........................................................130
4.18 Radiation Fin Temperature Rise ..........................................................132
4.19 Output Over Current Detection.............................................................134
4.20 Insufficient Gas.....................................................................................136
4.21 Low-voltage Detection..........................................................................138
5. Check..................................................................................................139
5.1 How to Check.......................................................................................139

SiEN04-306D
iv Table of Contents
Part 7 Removal Procedure ........................................................ 147
1. Indoor Unit...........................................................................................148
1.1 Removal of the Air Filter / Front Panel .................................................148
1.2 Removal of the Front Grille ..................................................................151
1.3 Removal of the Horizontal Blades / Vertical Blades.............................153
1.4 Removal of the Electrical Box / PCB / Swing Motor.............................155
1.5 Removal of the Heat Exchanger ..........................................................161
1.6 Removal of the Fan Rotor / Fan Motor.................................................164
2. Outdoor Unit........................................................................................166
2.1 Removal of the Panels and Plates .......................................................166
2.2 Removal of the Fan Motor / Propeller Fan ...........................................170
2.3 Removal of the PCB / Electrical Box....................................................174
2.4 Removal of the Reactor........................................................................182
2.5 Removal of the Sound Blanket.............................................................184
2.6 Removal of the Four Way Valve...........................................................186
2.7 Removal of the Electronic Expansion Valve.........................................187
2.8 Removal of the Compressor.................................................................188
Part 8 Others ............................................................................. 191
1. Others .................................................................................................192
1.1 Test Run from the remote control.........................................................192
1.2 Jumper Settings ...................................................................................193
Part 9 Appendix......................................................................... 195
1. Piping Diagrams..................................................................................196
1.1 Indoor Units..........................................................................................196
1.2 Outdoor Units .......................................................................................197
2. Wiring Diagrams..................................................................................203
2.1 Indoor Units..........................................................................................203
2.2 Outdoor Units .......................................................................................206
Index ............................................................................................. i
Drawings & Flow Charts ................................................................ v

SiEN04-306D 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 SiEN04-306D
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

SiEN04-306D 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 / 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 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 SiEN04-306D
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 Mohm or higher.
Faulty insulation can cause an electrical shock.
Be sure to check the drainage of the indoor unit after the repair.
Faulty drainage can cause the water to enter the room and wet the furniture
and floor.
Icon Type of
Information Description
Note:
Note A “note” provides information that is not indispensable, but may
nevertheless be valuable to the reader, such as tips and tricks.
Caution
Caution A “caution” is used when there is danger that the reader, through
incorrect manipulation, may damage equipment, loose data, get
an unexpected result or has to restart (part of) a procedure.
Warning
Warning A “warning” is used when there is danger of personal injury.
Reference A “reference” guides the reader to other places in this binder or
in this manual, where he/she will find additional information on a
specific topic.

SiEN04-306D
List of Functions 1
Part 1
List of Functions
1. List of Functions......................................................................................2
1.1 R-410A Series..........................................................................................2
1.2 R22 Series................................................................................................8

List of Functions SiEN04-306D
2List of Functions
1. List of Functions
1.1 R-410A Series
Category Functions
FTKS50·60·71BVMA RKS50·60·71BVMA FTXS50·60·71BVMA RXS50·60·71BVMA
Category Functions
FTKS50·60·71BVMA RKS50·60·71BVMA FTXS50·60·71BVMA RXS50·60·71BVMA
Basic
Function
Inverter (with Inverter Power Control) 
Health &
Clean
Air Purifying Filter with Bacteriostatic,
Virustatic Functions ——
Operation Limit for Cooling (°CDB) –5
~46 –5 ~46
Operation Limit for Heating (°CWB) — –15
~18 Photocatalytic Deodorizing Filter — —
PAM Control  Air Purifying Filter with Photocatalytic
Deodorizing Function 
Compressor
Oval Scroll Compressor — — Longlife Filter — —
Swing Compressor  Ultra-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 — — Good-Sleep Cooling Operation — —
Wide-Angle Louvers 
Timer 24-Hour On/Off Timer 
Vertical Auto-Swing (Up and Down)  Night Set Mode 
Horizontal Auto-Swing (Right and Left) 
Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) 
3-D Airflow  Self-Diagnosis (Digital, LED) Display 
3-Step Airflow (H/P Only) — — Wiring Error Check — —
Comfort
Control
Auto Fan Speed  Anticorrosion Treatment of Outdoor
Heat Exchanger 
Indoor Unit Silent Operation 
Night Quiet Mode (Automatic) — —
Flexibility
Multi-Split / Split Type Compatible
Indoor Unit 
Outdoor Unit Silent Operation (Manual) 
Intelligent Eye  Flexible Voltage Correspondence 
Quick Warming Function — High Ceiling Application — —
Hot-Start Function — Chargeless 10m 10m
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 
Lifestyle
Convenience
New Powerful Operation (Non-Inverter) — — Remote Control adapter
(Normal Open Contact) (Option) 
Inverter Powerful Operation 
Priority-Room Setting — — DIII-NET Compatible (adapter) (Option) 
Cooling / Heating Mode Lock — — Remote
Control
Wireless 
Home Leave Operation  Wired — —
Indoor Unit On/Off Switch 
Signal Reception Indicator 
Temperature Display — —
Another Room Operation — —
Note: : Holding Functions
— : No Functions

SiEN04-306D List of Functions
List of Functions 3
Category Functions
FTKS50·60·71BVMB RKS50·60·71BVMB(9)H FTXS50·60·71BVMB RXS50·60·71BVMB
Category Functions
FTKS50·60·71BVMB RKS50·60·71BVMB(9)H FTXS50·60·71BVMB RXS50·60·71BVMB
Basic
Function
Inverter (with Inverter Power Control) 
Health &
Clean
Air Purifying Filter with Bacteriostatic,
Virustatic Functions ——
Operation Limit for Cooling (°CDB) -10H
~46 –10 ~46
Operation Limit for Heating (°CWB) — –15
~18 Photocatalytic Deodorizing Filter — —
PAM Control  Air Purifying Filter with Photocatalytic
Deodorizing Function 
Compressor
Oval Scroll Compressor — — Longlife Filter — —
Swing Compressor  Ultra-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 — — Good-Sleep Cooling Operation — —
Wide-Angle Louvers 
Timer 24-Hour On/Off Timer 
Vertical Auto-Swing (Up and Down)  Night Set Mode 
Horizontal Auto-Swing (Right and Left) 
Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) 
3-D Airflow  Self-Diagnosis (Digital, LED) Display 
3-Step Airflow (H/P Only) — — Wiring Error Check — —
Comfort
Control
Auto Fan Speed  Anticorrosion Treatment of Outdoor
Heat Exchanger 
Indoor Unit Silent Operation 
Night Quiet Mode (Automatic) — —
Flexibility
Multi-Split / Split Type Compatible
Indoor Unit 
Outdoor Unit Silent Operation (Manual) 
Intelligent Eye  Flexible Voltage Correspondence 
Quick Warming Function — High Ceiling Application — —
Hot-Start Function — Chargeless 10m 10m
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 
Lifestyle
Convenience
New Powerful Operation (Non-Inverter) — — Remote Control adapter
(Normal Open Contact) (Option) 
Inverter Powerful Operation 
Priority-Room Setting — — DIII-NET Compatible (adapter) (Option) 
Cooling / Heating Mode Lock — — Remote
Control
Wireless 
Home Leave Operation  Wired — —
Indoor Unit On/Off Switch 
Signal Reception Indicator 
Temperature Display — —
Another Room Operation — —
Note: : Holding Functions
— : No Functions
H: The models with suffix “9” work down to –15°C.

List of Functions SiEN04-306D
4List of Functions
Category Functions
FTKS50·60·71BVMB RKS50·60·71B2VMB FTXS50·60·71BVMB RXS50·60·71B2VMB
Category Functions
FTKS50·60·71BVMB RKS50·60·71B2VMB FTXS50·60·71BVMB RXS50·60·71B2VMB
Basic
Function
Inverter (with Inverter Power Control) 
Health &
Clean
Air Purifying Filter with Bacteriostatic,
Virustatic Functions ——
Operation Limit for Cooling (°CDB)H–10
~46 –10 ~46
Operation Limit for Heating (°CWB) — –15
~18 Photocatalytic Deodorizing Filter — —
PAM Control  Air Purifying Filter with Photocatalytic
Deodorizing Function 
Compressor
Oval Scroll Compressor — — Longlife Filter — —
Swing Compressor  Ultra-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 — — Good-Sleep Cooling Operation — —
Wide-Angle Louvers 
Timer 24-Hour On/Off Timer 
Vertical Auto-Swing (Up and Down)  Night Set Mode 
Horizontal Auto-Swing (Right and Left) 
Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) 
3-D Airflow  Self-Diagnosis (Digital, LED) Display 
3-Step Airflow (H/P Only) — — Wiring Error Check — —
Comfort
Control
Auto Fan Speed  Anticorrosion Treatment of Outdoor
Heat Exchanger 
Indoor Unit Silent Operation 
Night Quiet Mode (Automatic) — —
Flexibility
Multi-Split / Split Type Compatible
Indoor Unit 
Outdoor Unit Silent Operation (Manual) 
Intelligent Eye  Flexible Voltage Correspondence 
Quick Warming Function — High Ceiling Application — —
Hot-Start Function — Chargeless 10m 10m
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 
Lifestyle
Convenience
New Powerful Operation (Non-Inverter) — — Remote Control adapter
(Normal Open Contact) (Option) 
Inverter Powerful Operation 
Priority-Room Setting — — DIII-NET Compatible (adapter) (Option) 
Cooling / Heating Mode Lock — — Remote
Control
Wireless 
Home Leave Operation  Wired — —
Indoor Unit On/Off Switch 
Signal Reception Indicator 
Temperature Display — —
Another Room Operation — —
Note: : Holding Functions
— : No Functions
H: Lower limit can be extended to –15°C by turning
switch. (facility use only)

SiEN04-306D List of Functions
List of Functions 5
Category Functions
FTKS71BAVMB RKS71B3VMB FTXS71BAVMB RXS71B3VMB
Category Functions
FTKS71BAVMB RKS71B3VMB FTXS71BAVMB RXS71B3VMB
Basic
Function
Inverter (with Inverter Power Control) 
Health &
Clean
Air Purifying Filter with Bacteriostatic,
Virustatic Functions ——
Operation Limit for Cooling (°CDB)H–10
~46 –10 ~46
Operation Limit for Heating (°CWB) — –15
~18 Photocatalytic Deodorizing Filter — —
PAM Control  Air Purifying Filter with Photocatalytic
Deodorizing Function 
Compressor
Oval Scroll Compressor — — Longlife Filter — —
Swing Compressor  Ultra-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 — — Good-Sleep Cooling Operation — —
Wide-Angle Louvers 
Timer 24-Hour On/Off Timer 
Vertical Auto-Swing (Up and Down)  Night Set Mode 
Horizontal Auto-Swing (Right and Left) 
Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) 
3-D Airflow  Self-Diagnosis (Digital, LED) Display 
3-Step Airflow (H/P Only) — — Wiring Error Check — —
Comfort
Control
Auto Fan Speed  Anticorrosion Treatment of Outdoor
Heat Exchanger 
Indoor Unit Silent Operation 
Night Quiet Mode (Automatic) — —
Flexibility
Multi-Split / Split Type Compatible
Indoor Unit 
Outdoor Unit Silent Operation (Manual) 
Intelligent Eye  Flexible Voltage Correspondence 
Quick Warming Function — High Ceiling Application — —
Hot-Start Function — Chargeless 10m 10m
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 
Lifestyle
Convenience
New Powerful Operation (Non-Inverter) — — Remote Control adapter
(Normal Open Contact) (Option) 
Inverter Powerful Operation 
Priority-Room Setting — — DIII-NET Compatible (adapter) (Option) 
Cooling / Heating Mode Lock — — Remote
Control
Wireless 
Home Leave Operation  Wired — —
Indoor Unit On/Off Switch 
Signal Reception Indicator 
Temperature Display — —
Another Room Operation — —
Note: : Holding Functions
— : No Functions
H: Lower limit can be extended to –15°C by turning
switch. (facility use only)

List of Functions SiEN04-306D
6List of Functions
Category Functions
ATXS50CVMB ARXS50C(2)VMB ATXS50DVMB ARXS50C(2)VMB
Category Functions
ATXS50CVMB ARXS50C(2)VMB ATXS50DVMB ARXS50C(2)VMB
Basic
Function
Inverter (with Inverter Power Control) 
Health &
Clean
Air Purifying Filter with Bacteriostatic,
Virustatic Functions ——
Operation Limit for Cooling (°CDB) –10
~46 –10 ~46
Operation Limit for Heating (°CWB) –15
~18 –15 ~18 Photocatalytic Deodorizing Filter — —
PAM Control  Air Purifying Filter with Photocatalytic
Deodorizing Function 
Compressor
Oval Scroll Compressor — — Longlife Filter — —
Swing Compressor  Ultra-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 — — Good-Sleep Cooling Operation — —
Wide-Angle Louvers 
Timer 24-Hour On/Off Timer 
Vertical Auto-Swing (Up and Down)  Night Set Mode 
Horizontal Auto-Swing (Right and Left) 
Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) 
3-D Airflow  Self-Diagnosis (Digital, LED) Display 
3-Step Airflow (H/P Only) — — Wiring Error Check — —
Comfort
Control
Auto Fan Speed  Anticorrosion Treatment of Outdoor
Heat Exchanger 
Indoor Unit Silent Operation 
Night Quiet Mode (Automatic) — —
Flexibility
Multi-Split / Split Type Compatible
Indoor Unit 
Outdoor Unit Silent Operation (Manual) 
Intelligent Eye  Flexible Voltage Correspondence 
Quick Warming Function  High Ceiling Application — —
Hot-Start Function  Chargeless 10m 10m
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 
Lifestyle
Convenience
New Powerful Operation (Non-Inverter) — — Remote Control adapter
(Normal Open Contact) (Option) 
Inverter Powerful Operation 
Priority-Room Setting — — DIII-NET Compatible (adapter) (Option) 
Cooling / Heating Mode Lock — — Remote
Control
Wireless 
Home Leave Operation  Wired — —
Indoor Unit On/Off Switch 
Signal Reception Indicator 
Temperature Display — —
Another Room Operation — —
Note: : Holding Functions
— : No Functions

SiEN04-306D List of Functions
List of Functions 7
Category Functions
FTS50·60BVMB RS50·60B(2)VMB FTYS50·60BVMB RYS50·60B(2)VMB
Category Functions
FTS50·60BVMB RS50·60B(2)VMB FTYS50·60BVMB RYS50·60B(2)VMB
Basic
Function
Inverter (with Inverter Power Control) — —
Health &
Clean
Air Purifying Filter with Bacteriostatic,
Virustatic Functions ——
Operation Limit for Cooling (°CDB) –10
~46 –10 ~46
Operation Limit for Heating (°CWB) — –15
~18 Photocatalytic Deodorizing Filter — —
PAM Control — — Air Purifying Filter with Photocatalytic
Deodorizing Function 
Compressor
Oval Scroll Compressor — — Longlife Filter — —
Swing Compressor  Ultra-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 — — Good-Sleep Cooling Operation — —
Wide-Angle Louvers 
Timer 24-Hour On/Off Timer 
Vertical Auto-Swing (Up and Down)  Night Set Mode 
Horizontal Auto-Swing (Right and Left) — —
Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) 
3-D Airflow — — Self-Diagnosis (Digital, LED) Display 
3-Step Airflow (H/P Only) — — Wiring Error Check — —
Comfort
Control
Auto Fan Speed  Anticorrosion Treatment of Outdoor
Heat Exchanger 
Indoor Unit Silent Operation — —
Night Quiet Mode (Automatic) — —
Flexibility
Multi-Split / Split Type Compatible
Indoor Unit ——
Outdoor Unit Silent Operation (Manual) — —
Intelligent Eye — — Flexible Voltage Correspondence 
Quick Warming Function — High Ceiling Application — —
Hot-Start Function — Chargeless 10m 10m
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 
Lifestyle
Convenience
New Powerful Operation (Non-Inverter)  Remote Control adapter
(Normal Open Contact) (Option) 
Inverter Powerful Operation — —
Priority-Room Setting — — DIII-NET Compatible (adapter) (Option) — —
Cooling / Heating Mode Lock — — Remote
Control
Wireless 
Home Leave Operation — — Wired — —
Indoor Unit On/Off Switch 
Signal Reception Indicator 
Temperature Display — —
Another Room Operation — —
Note: : Holding Functions
— : No Functions

List of Functions SiEN04-306D
8List of Functions
1.2 R22 Series
Category Functions
FTKD50·60·71BVM(A) RKD50·60·71BVM(A) FTXD50·60·71BVMA RXD50·60·71BVMA
Category Functions
FTKD50·60·71BVM(A) RKD50·60·71BVM(A) FTXD50·60·71BVMA RXD50·60·71BVMA
Basic
Function
Inverter (with Inverter Power Control) 
Health &
Clean
Air Purifying Filter with Bacteriostatic,
Virustatic Functions ——
Operation Limit for Cooling (°CDB) –5
~46 –5 ~46
Operation Limit for Heating (°CWB) — –15
~18 Photocatalytic Deodorizing Filter — —
PAM Control  Air Purifying Filter with Photocatalytic
Deodorizing Function 
Compressor
Oval Scroll Compressor — — Longlife Filter — —
Swing Compressor  Ultra-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 — — Good-Sleep Cooling Operation — —
Wide-Angle Louvers 
Timer 24-Hour On/Off Timer 
Vertical Auto-Swing (Up and Down)  Night Set Mode 
Horizontal Auto-Swing (Right and Left) 
Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) 
3-D Airflow  Self-Diagnosis (Digital, LED) Display 
3-Step Airflow (H/P Only) — — Wiring Error Check — —
Comfort
Control
Auto Fan Speed  Anticorrosion Treatment of Outdoor
Heat Exchanger 
Indoor Unit Silent Operation 
Night Quiet Mode (Automatic) — —
Flexibility
Multi-Split / Split Type Compatible
Indoor Unit 
Outdoor Unit Silent Operation (Manual) 
Intelligent Eye  Flexible Voltage Correspondence 
Quick Warming Function — High Ceiling Application — —
Hot-Start Function — Chargeless 10m 10m
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 
Lifestyle
Convenience
New Powerful Operation (Non-Inverter) — — Remote Control adapter
(Normal Open Contact) (Option) 
Inverter Powerful Operation 
Priority-Room Setting — — DIII-NET Compatible (adapter) (Option) 
Cooling / Heating Mode Lock — — Remote
Control
Wireless 
Home Leave Operation  Wired — —
Indoor Unit On/Off Switch 
Signal Reception Indicator 
Temperature Display — —
Another Room Operation — —
Note: : Holding Functions
— : No Functions

SiEN04-306D List of Functions
List of Functions 9
Category Functions
FTKD50·60·71BVMT RKD50·60·71BVMT FTXD50·60·71BVMT RXD50·60·71BVMT
Category Functions
FTKD50·60·71BVMT RKD50·60·71BVMT FTXD50·60·71BVMT RXD50·60·71BVMT
Basic
Function
Inverter (with Inverter Power Control) 
Health &
Clean
Air Purifying Filter with Bacteriostatic,
Virustatic Functions ——
Operation Limit for Cooling (°CDB) –5
~46 –5 ~46
Operation Limit for Heating (°CWB) — –15
~18 Photocatalytic Deodorizing Filter — —
PAM Control  Air Purifying Filter with Photocatalytic
Deodorizing Function 
Compressor
Oval Scroll Compressor — — Longlife Filter — —
Swing Compressor  Ultra-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 — — Good-Sleep Cooling Operation — —
Wide-Angle Louvers 
Timer 24-Hour On/Off Timer 
Vertical Auto-Swing (Up and Down)  Night Set Mode 
Horizontal Auto-Swing (Right and Left) 
Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) 
3-D Airflow  Self-Diagnosis (Digital, LED) Display 
3-Step Airflow (H/P Only) — — Wiring Error Check — —
Comfort
Control
Auto Fan Speed  Anticorrosion Treatment of Outdoor
Heat Exchanger 
Indoor Unit Silent Operation 
Night Quiet Mode (Automatic) — —
Flexibility
Multi-Split / Split Type Compatible
Indoor Unit 
Outdoor Unit Silent Operation (Manual) 
Intelligent Eye  Flexible Voltage Correspondence 
Quick Warming Function — High Ceiling Application — —
Hot-Start Function — Chargeless 10m 10m
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 
Lifestyle
Convenience
New Powerful Operation (Non-Inverter) — — Remote Control adapter
(Normal Open Contact) (Option) 
Inverter Powerful Operation 
Priority-Room Setting — — DIII-NET Compatible (adapter) (Option) 
Cooling / Heating Mode Lock — — Remote
Control
Wireless 
Home Leave Operation  Wired — —
Indoor Unit On/Off Switch 
Signal Reception Indicator 
Temperature Display — —
Another Room Operation — —
Note: : Holding Functions
— : No Functions

List of Functions SiEN04-306D
10 List of Functions
Category Functions
FTKD18·24·28BVMS RKD18·24·28BVMS
Category Functions
FTKD18·24·28BVMS RKD18·24·28BVMS
Basic
Function
Inverter (with Inverter Power Control) 
Health &
Clean
Air Purifying Filter with Bacteriostatic,
Virustatic Functions —
Operation Limit for Cooling (°CDB) 10~46
Operation Limit for Heating (°CWB) — Photocatalytic Deodorizing Filter —
PAM Control Air Purifying Filter with Photocatalytic
Deodorizing Function 
Compressor
Oval Scroll Compressor — Longlife Filter —
Swing Compressor Ultra-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 — Good-Sleep Cooling Operation —
Wide-Angle Louvers Timer 24-Hour On/Off Timer 
Vertical Auto-Swing (Up and Down) Night Set Mode 
Horizontal Auto-Swing (Right and Left) 
Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) 
3-D Airflow Self-Diagnosis (Digital, LED) Display 
3-Step Airflow (H/P Only) — Wiring Error Check —
Comfort
Control
Auto Fan Speed Anticorrosion Treatment of Outdoor
Heat Exchanger 
Indoor Unit Silent Operation 
Night Quiet Mode (Automatic) —
Flexibility
Multi-Split / Split Type Compatible
Indoor Unit —
Outdoor Unit Silent Operation (Manual) 
Intelligent Eye Flexible Voltage Correspondence 
Quick Warming Function — High Ceiling Application —
Hot-Start Function — Chargeless 10m
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 
Lifestyle
Convenience
New Powerful Operation (Non-Inverter) — Remote Control adapter
(Normal Open Contact) (Option) 
Inverter Powerful Operation 
Priority-Room Setting — DIII-NET Compatible (adapter) (Option) 
Cooling / Heating Mode Lock — Remote
Control
Wireless 
Home Leave Operation Wired —
Indoor Unit On/Off Switch 
Signal Reception Indicator 
Temperature Display —
Another Room Operation —
Note: : Holding Functions
— : No Functions

SiEN04-306D List of Functions
List of Functions 11
Category Functions
FTXD50BV4 RXD50BV4
Category Functions
FTXD50BV4 RXD50BV4
Basic
Function
Inverter (with Inverter Power Control) 
Health &
Clean
Air Purifying Filter with Bacteriostatic,
Virustatic Functions —
Operation Limit for Cooling (°CDB) –5
~46
Operation Limit for Heating (°CWB) –15
~18 Photocatalytic Deodorizing Filter —
PAM Control Air Purifying Filter with Photocatalytic
Deodorizing Function 
Compressor
Oval Scroll Compressor — Longlife Filter —
Swing Compressor Ultra-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 — Good-Sleep Cooling Operation —
Wide-Angle Louvers Timer 24-Hour On/Off Timer 
Vertical Auto-Swing (Up and Down) Night Set Mode 
Horizontal Auto-Swing (Right and Left) 
Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) 
3-D Airflow Self-Diagnosis (Digital, LED) Display 
3-Step Airflow (H/P Only) — Wiring Error Check —
Comfort
Control
Auto Fan Speed Anticorrosion Treatment of Outdoor
Heat Exchanger 
Indoor Unit Silent Operation 
Night Quiet Mode (Automatic) —
Flexibility
Multi-Split / Split Type Compatible
Indoor Unit —
Outdoor Unit Silent Operation (Manual) 
Intelligent Eye Flexible Voltage Correspondence —
Quick Warming Function High Ceiling Application —
Hot-Start Function Chargeless 10m
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 
Lifestyle
Convenience
New Powerful Operation (Non-Inverter) — Remote Control adapter
(Normal Open Contact) (Option) 
Inverter Powerful Operation 
Priority-Room Setting — DIII-NET Compatible (adapter) (Option) 
Cooling / Heating Mode Lock — Remote
Control
Wireless 
Home Leave Operation Wired —
Indoor Unit On/Off Switch 
Signal Reception Indicator 
Temperature Display —
Another Room Operation —
Note: : Holding Functions
— : No Functions