Daikin FTKN09NMVJU User manual

Service
Manual
Inverter Pair
Wall Mounted Type
FTK(X)N-N, FTK(X)-N Series
SiUS041501E
[Applied Models]
zInverter Pair : Cooling Only
zInverter Pair : Heat Pump

SiUS041501E
iTable of Contents
Inverter Pair
Wall Mounted Type
FTK(X)N-N, FTK(X)-N Series
zCooling Only
Indoor Unit
FTKN09NMVJU FTK09NMVJU
FTKN12NMVJU FTK12NMVJU
FTKN18NMVJU FTK18NMVJU
FTKN24NMVJU FTK24NMVJU
Outdoor Unit
RKN09NMVJU RK09NMVJU
RKN12NMVJU RK12NMVJU
RKN18NMVJU RK18NMVJU
RKN24NMVJU RK24NMVJU
zHeat Pump
Indoor Unit
FTXN09NMVJU FTX09NMVJU
FTXN12NMVJU FTX12NMVJU
FTXN18NMVJU FTX18NMVJU
FTXN24NMVJU FTX24NMVJU
Outdoor Unit
RXN09NMVJU RX09NMVJU
RXN12NMVJU RX12NMVJU
RXN18NMVJU RX18NMVJU
RXN24NMVJU RX24NMVJU

SiUS041501E
Table of Contents ii
1. Safety Cautions........................................................................................... v
1.1 Warnings and Cautions Regarding Safety of Workers................................. v
1.2 Warnings and Cautions Regarding Safety of Users....................................vii
2. Used Icons .................................................................................................. x
Part 1 List of Functions ................................................................... 1
1. Functions.....................................................................................................2
Part 2 Specifications ....................................................................... 6
1. Specifications ..............................................................................................7
1.1 Cooling Only................................................................................................. 7
1.2 Heat Pump ................................................................................................. 11
Part 3 Printed Circuit Board Connector Wiring Diagram .............. 15
1. Indoor Unit.................................................................................................16
1.1 09/12 Class ................................................................................................ 16
1.2 18/24 Class ................................................................................................ 18
2. Outdoor Unit..............................................................................................20
2.1 09/12 Class, RKN18NMVJU ...................................................................... 20
2.2 RXN18NMVJU, RK(X)18NMVJU, 24 class ................................................ 21
Part 4 Function and Control........................................................... 22
1. Main Functions..........................................................................................23
1.1 Temperature Control .................................................................................. 23
1.2 Frequency Principle.................................................................................... 23
1.3 Airflow Direction Control............................................................................. 25
1.4 Fan Speed Control for Indoor Unit ............................................................. 26
1.5 Program Dry Operation .............................................................................. 27
1.6 Automatic Operation................................................................................... 28
1.7 Thermostat Control..................................................................................... 29
1.8 NIGHT SET Mode ...................................................................................... 30
1.9 ECONO Operation ..................................................................................... 30
1.10 Inverter POWERFUL Operation ................................................................. 31
1.11 Other Functions.......................................................................................... 32
2. Function of Thermistor ..............................................................................33
3. Control Specification .................................................................................34
3.1 Mode Hierarchy .......................................................................................... 34
3.2 Frequency Control...................................................................................... 35
3.3 Controls at Mode Changing / Start-up........................................................ 37
3.4 Discharge Pipe Temperature Control......................................................... 39
3.5 Input Current Control.................................................................................. 40
3.6 Freeze-up Protection Control ..................................................................... 41
3.7 Heating Peak-cut Control ........................................................................... 41
3.8 Outdoor Fan Control................................................................................... 42
3.9 Liquid Compression Protection Function.................................................... 42

SiUS041501E
iii Table of Contents
3.10 Defrost Control ........................................................................................... 43
3.11 Electronic Expansion Valve Control ........................................................... 44
3.12 Malfunctions ............................................................................................... 47
Part 5 Remote Controller ............................................................... 48
1. Cooling Only..............................................................................................49
2. Heat Pump ................................................................................................51
Part 6 Service Diagnosis................................................................ 53
1. General Problem Symptoms and Check Items .........................................55
2. Troubleshooting with LED .........................................................................56
2.1 Indoor Unit.................................................................................................. 56
2.2 Outdoor Unit ............................................................................................... 56
3. Service Diagnosis .....................................................................................57
4. Troubleshooting ........................................................................................60
4.1 Error Codes and Description ...................................................................... 60
4.2 Indoor Unit PCB Abnormality ..................................................................... 61
4.3 Freeze-up Protection Control / Heating Peak-cut Control .......................... 62
4.4 Fan Motor (DC Motor) or Related Abnormality........................................... 63
4.5 Thermistor or Related Abnormality (Indoor Unit)........................................ 65
4.6 Low-voltage Detection or Over-voltage Detection...................................... 66
4.7 Signal Transmission Error (between Indoor Unit and Outdoor Unit) .......... 68
4.8 Unspecified Voltage (Between Indoor Unit and Outdoor Unit) ................... 70
4.9 Outdoor Unit PCB Abnormality................................................................... 71
4.10 OL Activation (Compressor Overload) ....................................................... 72
4.11 Compressor Lock ....................................................................................... 74
4.12 DC Fan Lock .............................................................................................. 75
4.13 Input Overcurrent Detection ....................................................................... 76
4.14 Four Way Valve Abnormality...................................................................... 77
4.15 Discharge Pipe Temperature Control......................................................... 79
4.16 High Pressure Control in Cooling ............................................................... 80
4.17 Compressor System Sensor Abnormality .................................................. 82
4.18 Position Sensor Abnormality ...................................................................... 83
4.19 Thermistor or Related Abnormality (Outdoor Unit)..................................... 85
4.20 Electrical Box Temperature Rise................................................................ 87
4.21 Radiation Fin Temperature Rise ................................................................ 88
4.22 Output Overcurrent Detection .................................................................... 89
5. Check ........................................................................................................91
5.1 Thermistor Resistance Check .................................................................... 91
5.2 Fan Motor Connector Output Check .......................................................... 92
5.3 Power Supply Waveforms Check............................................................... 93
5.4 Electronic Expansion Valve Check............................................................. 93
5.5 Four Way Valve Performance Check ......................................................... 94
5.6 Inverter Unit Refrigerant System Check..................................................... 94
5.7 Inverter Analyzer Check ............................................................................. 95
5.8 Rotation Pulse Check on the Outdoor Unit PCB ........................................ 97

SiUS041501E
Table of Contents iv
5.9 Installation Condition Check....................................................................... 98
5.10 Discharge Pressure Check......................................................................... 98
5.11 Outdoor Fan System Check ....................................................................... 99
5.12 Main Circuit Short Check............................................................................ 99
5.13 Power Module Check ............................................................................... 100
Part 7 Trial Operation and Field Settings.................................... 102
1. Tips for Servicing ....................................................................................103
1.1 Pump Down Operation ............................................................................. 103
1.2 Forced Cooling Operation ........................................................................ 103
2. Trial Operation ........................................................................................104
3. Field Settings ..........................................................................................105
3.1 Temperature Display Switch .................................................................... 105
3.2 When 2 Units are Installed in 1 Room...................................................... 106
3.3 Facility Setting Switch (cooling at low outdoor temperature)
(Only for RK(X) series) ............................................................................. 107
4. Silicon Grease on Power Transistor / Diode Bridge................................108
Part 8 Appendix............................................................................ 109
1. Piping Diagrams......................................................................................110
1.1 Indoor unit ................................................................................................ 110
1.2 Outdoor Unit ............................................................................................. 112
2. Wiring Diagrams......................................................................................118
2.1 Indoor Unit................................................................................................ 118
2.2 Outdoor Unit ............................................................................................. 119

Safety Cautions SiUS041501E
v
1. Safety Cautions
Be sure to read the following safety cautions before conducting repair work.
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.
Caution Items 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.
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.
1.1 Warnings and Cautions Regarding Safety of Workers
Warning
Do not store the equipment in a room with successive fire sources (e.g.,
naked flame, gas appliance, electric heater).
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 shock.
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 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.
Be sure to discharge the capacitor completely before conducting repair
work.
The step-up capacitor supplies high-voltage electricity to the electrical
components of the outdoor unit.
A charged capacitor may cause an electrical shock.

SiUS041501E Safety Cautions
vi
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.
Be sure to wear a safety helmet, gloves, and a safety belt when working
at a high place (more than 2 m).
Insufficient safety measures may cause a fall accident.
In case of R-32 / R-410A refrigerant models, be sure to use pipes, flare
nuts and tools for the exclusive use of the R-32 / R-410A refrigerant.
The use of materials for R-22 refrigerant models may cause a serious accident
such as a damage of refrigerant cycle as well as an equipment failure.
Do not mix air or gas other than the specified refrigerant (R-32 / R-410A /
R-22) in the refrigerant system.
If air enters the refrigerating system, an excessively high pressure results,
causing equipment damage and injury.
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 earth / 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 may cause injury.
Be sure to conduct repair work with appropriate tools.
The use of inappropriate tools may cause injury.

Safety Cautions SiUS041501E
vii
1.2 Warnings and Cautions Regarding Safety of Users
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.
Caution
Warning
Do not store the equipment in a room with successive fire sources (e.g.,
naked flame, gas appliance, electric heater).
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.

SiUS041501E Safety Cautions
viii
When wiring between the indoor and outdoor units, make sure that the
terminal cover does not lift off or dismount because of the cable.
If the cover is not mounted properly, the terminal connection section may cause
an electrical shock, excessive heat generation or fire.
Do not damage or modify the power cable.
Damaged or modified power cable may cause an electrical shock or fire.
Placing heavy items on the power cable, and heating or pulling the power cable
may damage the cable.
Do not mix air or gas other than the specified refrigerant (R-32 / R-410A /
R-22) in the refrigerant system.
If air enters the refrigerating system, an excessively high pressure results,
causing equipment damage and injury.
If the refrigerant gas leaks, be sure to locate the leaking point and repair
it before charging the refrigerant. After charging refrigerant, make sure
that there is no refrigerant leak.
If the leaking point cannot be located and the repair work must be stopped, be
sure to perform pump-down and close the service valve, to prevent the
refrigerant gas from leaking into the room. The refrigerant gas itself is
harmless, but it may generate toxic gases when it contacts flames, such as fan
and other heaters, stoves and ranges.
When relocating the equipment, make sure that the new installation site
has sufficient strength to withstand the weight of the equipment.
If the installation site does not have sufficient strength and if the installation
work is not conducted securely, the equipment may fall and cause injury.
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
dispose of the old battery to prevent children from swallowing it.
If a child swallows the coin battery, see a doctor immediately.
Warning

Safety Cautions SiUS041501E
ix
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 earth / grounding, and repair it if the equipment is not properly
earthed / grounded.
Improper earth / grounding may 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 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

SiUS041501E Used Icons
x
2. Used Icons
The following icons are used to attract the attention of the reader to specific information.
Icon Type of
Information
Description
Warning
Warning A Warning is used when there is danger of personal injury.
Caution
Caution A Caution is used when there is danger that the reader, through
incorrect manipulation, may damage equipment, lose data, get
an unexpected result or has to restart (part of) a procedure.
Note:
Note A Note provides information that is not indispensable, but may
nevertheless be valuable to the reader, such as tips and tricks.
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.

SiUS041501E
1List of Functions
Part 1
List of Functions
1. Functions.....................................................................................................2

SiUS041501E Functions
List of Functions 2
1. Functions
Category Functions
FTKN09/12NMVJU RKN09/12NMVJU FTXN09/12NMVJU RXN09/12NMVJU
Category Functions
FTKN09/12NMVJU RKN09/12NMVJU FTXN09/12NMVJU RXN09/12NMVJU
Basic
Function
Inverter (with inverter power control) zz Health &
Clean
Air-purifying filter — —
Operation limit for cooling (°CDB) 10 ~
46
10 ~
46
Photocatalytic deodorizing filter — —
Air-purifying filter with photocatalytic
deodorizing function ——
Operation limit for cooling (°FDB) 50 ~
114.8
50 ~
114.8 Titanium apatite photocatalytic
air-purifying filter (option) zz
Operation limit for heating (°CWB) — –15 ~
18 Air filter (prefilter) zz
Operation limit for heating (°FWB) — 5 ~
64.4
Wipe-clean flat panel zz
Washable grille — —
PAM control zz MOLD PROOF operation — —
Standby electricity saving zz Good-sleep cooling operation — —
Compressor Oval scroll compressor — — Timer WEEKLY TIMER — —
Swing compressor zz Count up-down ON/OFF timer zz
Rotary compressor — — 24-hour ON/OFF TIMER — —
Reluctance DC motor zz NIGHT SET mode zz
Comfortable
Airflow
Power-airflow flap (horizontal blade)
zz
Worry Free
(Reliability &
Durability)
Auto-restart (after power failure) zz
Power-airflow dual flaps — — Self-diagnosis (R/C, LED) zz
Power-airflow diffuser — — Wiring error check function — —
Wide-angle louvers (vertical blade) zz Anti-corrosion treatment of outdoor heat
exchanger zz
Auto-swing (up and down) zz
Auto-swing (right and left) — — Flexibility Multi-split / split type compatible indoor
unit ——
3-D airflow — —
COMFORT AIRFLOW operation zz H/P, C/O compatible indoor unit — —
Comfort
Control
Auto fan speed zz Flexible power supply correspondence — —
Indoor unit quiet operation zz Chargeless
32.8 ft
(10 m)
32.8 ft
(10 m)
NIGHT QUIET mode (automatic) — —
OUTDOOR UNIT QUIET operation
(manual) —— Either side drain (right or left) zz
Power selection — —
INTELLIGENT EYE operation — — Low temperature cooling operation
(–15°C) (5°F) ——
Quick warming function — z
Hot-start function — z°F/°C changeover R/C temperature
display (factory setting: °F) zz
Automatic defrosting — z
Operation Automatic operation — zRemote
Control
5-rooms centralized controller (option) zz
Program dry function zz Remote control adaptor
(normal open-pulse contact) (option) zz
Fan only zz
Lifestyle
Convenience
New POWERFUL operation
(non-inverter) —— Remote control adaptor (normal open contact) (option) zz
Inverter POWERFUL operation zz DIII-NET compatible (adaptor) (option) zz
Priority-room setting — — Remote
Controller
Wireless zz
COOL / HEAT mode lock — — Wired (option) zz
HOME LEAVE operation — —
ECONO operation zz
Indoor unit ON/OFF button zz
Signal receiving sign zz
R/C with back light — —
Temperature display — —
Note: z: Available
— : Not available

Functions SiUS041501E
3List of Functions
Category Functions
FTKN18/24NMVJU RKN18/24NMVJU FTXN18/24NMVJU RXN18/24NMVJU
Category Functions
FTKN18/24NMVJU RKN18/24NMVJU FTXN18/24NMVJU RXN18/24NMVJU
Basic
Function
Inverter (with inverter power control) zz Health &
Clean
Air-purifying filter — —
Operation limit for cooling (°CDB) 10 ~
46
10 ~
46
Photocatalytic deodorizing filter — —
Air-purifying filter with photocatalytic
deodorizing function ——
Operation limit for cooling (°FDB) 50 ~
114.8
50 ~
114.8 Titanium apatite photocatalytic
air-purifying filter (option) zz
Operation limit for heating (°CWB) — –15 ~
18 Air filter (prefilter) zz
Operation limit for heating (°FWB) — 5 ~
64.4
Wipe-clean flat panel zz
Washable grille — —
PAM control zz MOLD PROOF operation — —
Standby electricity saving zz Good-sleep cooling operation — —
Compressor Oval scroll compressor — — Timer WEEKLY TIMER — —
Swing compressor zz Count up-down ON/OFF timer zz
Rotary compressor — — 24-hour ON/OFF TIMER — —
Reluctance DC motor zz NIGHT SET mode zz
Comfortable
Airflow
Power-airflow flap (horizontal blade) — — Worry Free
(Reliability &
Durability)
Auto-restart (after power failure) zz
Power-airflow dual flaps zz Self-diagnosis (R/C, LED) zz
Power-airflow diffuser — — Wiring error check function — —
Wide-angle louvers (vertical blade) zz Anti-corrosion treatment of outdoor heat
exchanger zz
Auto-swing (up and down) zz
Auto-swing (right and left) — — Flexibility Multi-split / split type compatible indoor
unit ——
3-D airflow — —
COMFORT AIRFLOW operation zz H/P, C/O compatible indoor unit — —
Comfort
Control
Auto fan speed zz Flexible power supply correspondence — —
Indoor unit quiet operation zz Chargeless
32.8 ft
(10 m)
32.8 ft
(10 m)
NIGHT QUIET mode (automatic) — —
OUTDOOR UNIT QUIET operation
(manual) —— Either side drain (right or left) zz
Power selection — —
INTELLIGENT EYE operation — — Low temperature cooling operation
(–15°C) (5°F) ——
Quick warming function — z
Hot-start function — z°F/°C changeover R/C temperature
display (factory setting: °F) zz
Automatic defrosting — z
Operation Automatic operation — zRemote
Control
5-rooms centralized controller (option) zz
Program dry function zz Remote control adaptor
(normal open-pulse contact) (option) zz
Fan only zz
Lifestyle
Convenience
New POWERFUL operation
(non-inverter) —— Remote control adaptor
(normal open contact) (option) zz
Inverter POWERFUL operation zz DIII-NET compatible (adaptor) (option) zz
Priority-room setting — — Remote
Controller
Wireless zz
COOL / HEAT mode lock — — Wired (option) zz
HOME LEAVE operation — —
ECONO operation zz
Indoor unit ON/OFF button zz
Signal receiving sign zz
R/C with back light — —
Temperature display — —
Note: z: Available
— : Not available

SiUS041501E Functions
List of Functions 4
Category Functions
FTK09/12NMVJU RK09/12NMVJU FTX09/12NMVJU RX09/12NMVJU
Category Functions
FTK09/12NMVJU RK09/12NMVJU FTX09/12NMVJU RX09/12NMVJU
Basic
Function
Inverter (with inverter power control) zz Health &
Clean
Air-purifying filter — —
Operation limit for cooling (°CDB) 10 ~
46
10 ~
46
Photocatalytic deodorizing filter — —
Air-purifying filter with photocatalytic
deodorizing function ——
Operation limit for cooling (°FDB) 50 ~
114.8
50 ~
114.8 Titanium apatite photocatalytic
air-purifying filter (option) zz
Operation limit for heating (°CWB) — –15 ~
18 Air filter (prefilter) zz
Operation limit for heating (°FWB) — 5 ~
64.4
Wipe-clean flat panel zz
Washable grille — —
PAM control zz MOLD PROOF operation — —
Standby electricity saving zz Good-sleep cooling operation — —
Compressor Oval scroll compressor — — Timer WEEKLY TIMER — —
Swing compressor zz Count up-down ON/OFF timer zz
Rotary compressor — — 24-hour ON/OFF TIMER — —
Reluctance DC motor zz NIGHT SET mode zz
Comfortable
Airflow
Power-airflow flap (horizontal blade)
zz
Worry Free
(Reliability &
Durability)
Auto-restart (after power failure) zz
Power-airflow dual flaps — — Self-diagnosis (R/C, LED) zz
Power-airflow diffuser — — Wiring error check function — —
Wide-angle louvers (vertical blade) zz Anti-corrosion treatment of outdoor heat
exchanger zz
Auto-swing (up and down) zz
Auto-swing (right and left) — — Flexibility Multi-split / split type compatible indoor
unit ——
3-D airflow — —
COMFORT AIRFLOW operation zz H/P, C/O compatible indoor unit — —
Comfort
Control
Auto fan speed zz Flexible power supply correspondence — —
Indoor unit quiet operation zz Chargeless
32.8 ft
(10 m)
32.8 ft
(10 m)
NIGHT QUIET mode (automatic) — —
OUTDOOR UNIT QUIET operation
(manual) —— Either side drain (right or left) zz
Power selection — —
INTELLIGENT EYE operation — — Low temperature cooling operation
(–15°C) (5°F) zz
Quick warming function — z
Hot-start function — z°F/°C changeover R/C temperature
display (factory setting: °F) zz
Automatic defrosting — z
Operation Automatic operation — zRemote
Control
5-rooms centralized controller (option) zz
Program dry function zz Remote control adaptor
(normal open-pulse contact) (option) zz
Fan only zz
Lifestyle
Convenience
New POWERFUL operation
(non-inverter) —— Remote control adaptor (normal open contact) (option) zz
Inverter POWERFUL operation zz DIII-NET compatible (adaptor) (option) zz
Priority-room setting — — Remote
Controller
Wireless zz
COOL / HEAT mode lock — — Wired (option) zz
HOME LEAVE operation — —
ECONO operation zz
Indoor unit ON/OFF button zz
Signal receiving sign zz
R/C with back light zz
Temperature display — —
Note: z: Available
— : Not available

Functions SiUS041501E
5List of Functions
Category Functions
FTK18/24NMVJU RK18/24NMVJU FTX18/24NMVJU RX18/24NMVJU
Category Functions
FTK18/24NMVJU RK18/24NMVJU FTX18/24NMVJU RX18/24NMVJU
Basic
Function
Inverter (with inverter power control) zz Health &
Clean
Air-purifying filter — —
Operation limit for cooling (°CDB) 10 ~
46
10 ~
46
Photocatalytic deodorizing filter — —
Air-purifying filter with photocatalytic
deodorizing function ——
Operation limit for cooling (°FDB) 50 ~
114.8
50 ~
114.8 Titanium apatite photocatalytic
air-purifying filter (option) zz
Operation limit for heating (°CWB) — –15 ~
18 Air filter (prefilter) zz
Operation limit for heating (°FWB) — 5 ~
64.4
Wipe-clean flat panel zz
Washable grille — —
PAM control zz MOLD PROOF operation — —
Standby electricity saving zz Good-sleep cooling operation — —
Compressor Oval scroll compressor — — Timer WEEKLY TIMER — —
Swing compressor zz Count up-down ON/OFF timer zz
Rotary compressor — — 24-hour ON/OFF TIMER — —
Reluctance DC motor zz NIGHT SET mode zz
Comfortable
Airflow
Power-airflow flap (horizontal blade) — — Worry Free
(Reliability &
Durability)
Auto-restart (after power failure) zz
Power-airflow dual flaps zz Self-diagnosis (R/C, LED) zz
Power-airflow diffuser — — Wiring error check function — —
Wide-angle louvers (vertical blade) zz Anti-corrosion treatment of outdoor heat
exchanger zz
Auto-swing (up and down) zz
Auto-swing (right and left) — — Flexibility Multi-split / split type compatible indoor
unit ——
3-D airflow — —
COMFORT AIRFLOW operation zz H/P, C/O compatible indoor unit — —
Comfort
Control
Auto fan speed zz Flexible power supply correspondence — —
Indoor unit quiet operation zz Chargeless
32.8 ft
(10 m)
32.8 ft
(10 m)
NIGHT QUIET mode (automatic) — —
OUTDOOR UNIT QUIET operation
(manual) —— Either side drain (right or left) zz
Power selection — —
INTELLIGENT EYE operation — — Low temperature cooling operation
(–15°C) (5°F) zz
Quick warming function — z
Hot-start function — z°F/°C changeover R/C temperature
display (factory setting: °F) zz
Automatic defrosting — z
Operation Automatic operation — zRemote
Control
5-rooms centralized controller (option) zz
Program dry function zz Remote control adaptor
(normal open-pulse contact) (option) zz
Fan only zz
Lifestyle
Convenience
New POWERFUL operation
(non-inverter) —— Remote control adaptor
(normal open contact) (option) zz
Inverter POWERFUL operation zz DIII-NET compatible (adaptor) (option) zz
Priority-room setting — — Remote
Controller
Wireless zz
COOL / HEAT mode lock — — Wired (option) zz
HOME LEAVE operation — —
ECONO operation zz
Indoor unit ON/OFF button zz
Signal receiving sign zz
R/C with back light zz
Temperature display — —
Note: z: Available
— : Not available

SiUS041501E
Specifications 6
Part 2
Specifications
1. Specifications ..............................................................................................7
1.1 Cooling Only................................................................................................. 7
1.2 Heat Pump ................................................................................................. 11

Specifications SiUS041501E
7Specifications
1. Specifications
1.1 Cooling Only
60 Hz, 208 - 230 V
Note: The data are based on the conditions shown in the table below.
Model Indoor Unit FTKN09NMVJU FTKN12NMVJU
Outdoor Unit RKN09NMVJU RKN12NMVJU
Capacity
Rated (Min. ~ Max.)
kW 2.64 (1.30 ~ 3.00) 3.52 (1.30 ~ 3.80)
Btu/h 9,000 (4,400 ~ 10,200) 12,000 (4,400 ~ 13,000)
kcal/h 2,270 (1,120 ~ 2,580) 3,030 (1,120 ~ 3,270)
Moisture Removal gal/h 0.32 0.45
Running Current (Rated) A 4.41 - 3.99 5.74 - 5.19
Power Consumption
Rated
(Min. ~ Max.)
W 869 (278 ~ 1,135) 1,142 (260 ~ 1,250)
Power Factor (Rated) % 94.7 - 94.7 95.7 - 95.7
COP Rated (Min. ~ Max.) W/W 3.04 (4.68 ~ 2.64) 3.08 (5.00 ~ 3.04)
EER Rated (Min. ~ Max.)
Btu/h·W 10.4 (15.8 ~ 9.0) 10.5 (16.9 ~ 10.4)
SEER 15.0 15.0
Piping Connections
Liquid in. (mm) φ 1/4 (φ 6.4) φ 1/4 (φ 6.4)
Gas in. (mm) φ3/8 (φ 9.5) φ3/8 (φ 9.5)
Drain in. (mm) φ 5/8 (φ 16.0) φ 5/8 (φ 16.0)
Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes
Max. Interunit Piping Length ft (m) 49-1/4 (15) 49-1/4 (15)
Max. Interunit Height Difference ft (m) 39-3/8 (12) 39-3/8 (12)
Chargeless ft (m) 32-13/16 (10) 32-13/16 (10)
Amount of Additional Charge of
Refrigerant oz/ft (g/m) 0.21 (20) 0.21 (20)
Indoor Unit FTKN09NMVJU FTKN12NMVJU
Front Panel Color White White
Airflow Rate
H
m³/min
(cfm)
11.4 (403) 12.0 (424)
M 8.1 (286) 8.5 (300)
L 6.2 (219) 7.0 (247)
SL 4.1 (145) 4.0 (141)
Fan
Type Cross Flow Fan Cross Flow Fan
Motor Output W 18 22
Speed Steps 5 Steps, Quiet, Auto 5 Steps, Quiet, Auto
Air Direction Control Right, Left, Horizontal, Downward Right, Left, Horizontal, Downward
Air Filter Removable, Washable, Mildew Proof Removable, Washable, Mildew Proof
Running Current (Rated) A 0.23 - 0.21 0.27 - 0.24
Power Consumption (Rated) W 25 - 25 29 - 29
Power Factor (Rated) % 52.3-51.8 51.6 - 52.5
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H × W × D) in. (mm) 11-1/4 × 30-5/16 × 8-3/4 (285 × 770 × 223) 11-1/4 × 30-5/16 × 8-3/4 (285 × 770 × 223)
Packaged Dimensions (H × W × D) in. (mm) 12 × 32-11/16 × 14-3/16 (305 × 831 × 360) 12 × 32-11/16 × 14-3/16 (305 × 831 × 360)
Weight Lbs (kg) 18 (8) 18 (8)
Gross Weight Lbs (kg) 24 (11) 24 (11)
Sound Pressure Level H / M / L / SL dB(A) 43 / 35 / 27 / 19 44 / 36 / 30 / 19
Sound Power Level dB — —
Outdoor Unit RKN09NMVJU RKN12NMVJU
Casing Color Ivory White Ivory White
Compressor
Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type
Model 1YC23AUXD 1YC23AUXD
Motor Output W 790 790
Refrigerant Oil Type FVC50K FVC50K
Charge oz (L) 12.4 (0.375) 12.4 (0.375)
Refrigerant Type R-410A R-410A
Charge Lbs (kg) 1.54 (0.70) 2.09 (0.95)
Airflow Rate Hm³/min
(cfm) 35.2 (1,243) 35.0 (1,236)
SL — —
Fan Type Propeller Propeller
Motor Output W 20 26
Running Current (Rated) A 4.18 - 3.78 5.47 - 4.95
Power Consumption (Rated) W 844 - 844 1,113 - 1,113
Power Factor (Rated) % 97.1 - 97.1 97.8 - 97.8
Starting Current A 4.41 5.74
Dimensions (H × W × D) in. (mm) 21-5/8 × 26-9/16 × 11-3/16 (550 × 675 × 284) 21-5/8 × 26-9/16 × 11-3/16 (550 × 675 × 284)
Packaged Dimensions (H × W × D) in. (mm) 24-3/4 × 32-11/16 × 16 (629 × 830 × 407) 24-3/4 × 32-11/16 × 16 (629 × 830 × 407)
Weight Lbs (kg) 55 (25) 60 (27)
Gross Weight Lbs (kg) 66 (30) 71 (32)
Sound Pressure Level H dB(A) 49 52
Drawing No. 3D093121A 3D093123A
Conversion Formulae
kcal/h = kW × 860
Btu/h = kW × 3412
cfm = m³/min × 35.3
Cooling Indoor ; 80°FDB (26.7°CDB) / 67°FWB (19.4°CWB)
Outdoor ; 95°FDB (35°CDB) / 75°FWB (24°CWB)
Piping Length 25 ft (7.5 m)

SiUS041501E Specifications
Specifications 8
60 Hz, 208 - 230 V
Note: The data are based on the conditions shown in the table below.
Model Indoor Unit FTKN18NMVJU FTKN24NMVJU
Outdoor Unit RKN18NMVJU RKN24NMVJU
Capacity
Rated (Min. ~ Max.)
kW 5.02 (1.30 ~ 5.28) 6.45 (1.50 ~ 6.74)
Btu/h 17,100 (4,400 ~ 18,000) 22,000 (5,100 ~ 23,000)
kcal/h 4,320 (1,120 ~ 4,540) 5,550 (1,290 ~ 5,800)
Moisture Removal gal/h 1.0 1.2
Running Current (Rated) A 7.63 - 6.90 11.79 - 10.66
Power Consumption
Rated
(Min. ~ Max.)
W 1,550 (240 ~ 1,680) 2,403 (295 ~ 2,550)
Power Factor (Rated) % 97.7 - 97.7 98.0 - 98.0
COP Rated (Min. ~ Max.) W/W 3.24 (5.42 ~ 3.14) 2.68 (5.08 ~ 2.64)
EER Rated (Min. ~ Max.)
Btu/h·W 11.0 (18.3 ~ 10.7) 9.2 (17.3 ~ 9.0)
SEER 15.0 15.0
Piping Connections
Liquid in. (mm) φ 1/4 (φ 6.4) φ 1/4 (φ 6.4)
Gas in. (mm) φ1/2 (φ 12.7) φ5/8 (φ 15.9)
Drain in. (mm) φ 5/8 (φ 16.0) φ 5/8 (φ 16.0)
Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes
Max. Interunit Piping Length ft (m) 98-1/2 (30) 98-1/2 (30)
Max. Interunit Height Difference ft (m) 65-5/8 (20) 65-5/8 (20)
Chargeless ft (m) 32-13/16 (10) 32-13/16 (10)
Amount of Additional Charge of
Refrigerant oz/ft (g/m) 0.21 (20) 0.21 (20)
Indoor Unit FTKN18NMVJU FTKN24NMVJU
Front Panel Color White White
Airflow Rate
H
m³/min
(cfm)
20.2 (713) 20.2 (713)
M 16.4 (579) 16.4 (579)
L 12.9 (455) 13.9 (491)
SL 11.8 (417) 11.8 (417)
Fan
Type Cross Flow Fan Cross Flow Fan
Motor Output W 46 46
Speed Steps 5 Steps, Quiet, Auto 5 Steps, Quiet, Auto
Air Direction Control Right, Left, Horizontal, Downward Right, Left, Horizontal, Downward
Air Filter Removable, Washable, Mildew Proof Removable, Washable, Mildew Proof
Running Current (Rated) A 0.43 - 0.39 0.43 - 0.39
Power Consumption (Rated) W 58 - 58 58 - 58
Power Factor (Rated) % 64.8 - 64.7 64.8 - 64.7
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H × W × D) in. (mm) 11-5/8 × 39 × 10-3/8 (295 × 990 × 263) 11-5/8 × 39 × 10-3/8 (295 × 990 × 263)
Packaged Dimensions (H × W × D) in. (mm) 14-9/16 × 42-1/2 × 15-3/8 (370 × 1,080 × 390) 14-9/16 × 42-1/2 × 15-3/8 (370 × 1,080 × 390)
Weight Lbs (kg) 27 (12) 27 (12)
Gross Weight Lbs (kg) 37 (17) 37 (17)
Sound Pressure Level H / M / L / SL dB(A) 48 / 44 / 38 / 33 51 / 45 / 39 / 34
Sound Power Level dB 64 67
Outdoor Unit RKN18NMVJU RKN24NMVJU
Casing Color Ivory White Ivory White
Compressor
Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type
Model 1YC23AYXD 2YC36PXD
Motor Output W 780 1,100
Refrigerant Oil Type FVC50K FVC50K
Charge oz (L) 12.4 (0.375) 21.5 (0.650)
Refrigerant Type R-410A R-410A
Charge Lbs (kg) 2.49 (1.13) 2.49 (1.13)
Airflow Rate Hm³/min
(cfm) 65.5 (2,313) 73.9 (2,609)
SL 52.1 (1,840) 62.2 (2,196)
Fan Type Propeller Propeller
Motor Output W 58 80
Running Current (Rated) A 7.20 - 6.51 11.36 - 10.27
Power Consumption (Rated) W 1,492 - 1,492 2,345 - 2,345
Power Factor (Rated) % 99.6 - 99.6 99.2 - 99.3
Starting Current A 7.63 11.79
Dimensions (H × W × D) in. (mm) 28-15/16 × 34-1/4 × 12-5/8 (735 × 870 × 320) 28-15/16 × 34-1/4 × 12-5/8 (735 × 870 × 320)
Packaged Dimensions (H × W × D) in. (mm) 31-7/8 × 41-9/16 × 17-1/2 (810 × 1,056 × 444) 31-7/8 × 41-9/16 × 17-1/2 (810 × 1,056 × 444)
Weight Lbs (kg) 90 (41) 97 (44)
Gross Weight Lbs (kg) 106 (48) 115 (52)
Sound Pressure Level H dB(A) 56 59
Drawing No. 3D091699A 3D091700A
Conversion Formulae
kcal/h = kW × 860
Btu/h = kW × 3412
cfm = m³/min × 35.3
Cooling Indoor ; 80°FDB (26.7°CDB) / 67°FWB (19.4°CWB)
Outdoor ; 95°FDB (35°CDB) / 75°FWB (24°CWB)
Piping Length 25 ft (7.5 m)

Specifications SiUS041501E
9Specifications
60 Hz, 208 - 230 V
Note: The data are based on the conditions shown in the table below.
Model Indoor Unit FTK09NMVJU FTK12NMVJU
Outdoor Unit RK09NMVJU RK12NMVJU
Capacity
Rated (Min. ~ Max.)
kW 2.64 (1.30 ~ 3.00) 3.20 (1.30 ~ 3.90)
Btu/h 9,000 (4,400 ~ 10,200) 10,900 (4,400 ~ 13,300)
kcal/h 2,270 (1,120 ~ 2,580) 2,750 (1,120 ~ 3,350)
Moisture Removal gal/h 0.32 0.45
Running Current (Rated) A 3.77 - 3.41 4.42 - 3.99
Power Consumption
Rated
(Min. ~ Max.)
W 721 (250 ~ 962) 874 (260 ~ 1,383)
Power Factor (Rated) % 91.9 - 91.9 95.1 - 95.2
COP Rated (Min. ~ Max.) W/W 3.66 (5.20 ~ 3.12) 3.66 (5.00 ~ 2.82)
EER Rated (Min. ~ Max.)
Btu/h·W 12.5 (17.6 ~ 10.6) 12.5 (16.9 ~ 9.6)
SEER 19.0 19.0
Piping Connections
Liquid in. (mm) φ 1/4 (φ 6.4) φ 1/4 (φ 6.4)
Gas in. (mm) φ3/8 (φ 9.5) φ3/8 (φ 9.5)
Drain in. (mm) φ 5/8 (φ 16.0) φ 5/8 (φ 16.0)
Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes
Max. Interunit Piping Length ft (m) 65-5/8 (20) 65-5/8 (20)
Max. Interunit Height Difference ft (m) 49-1/4 (15) 49-1/4 (15)
Chargeless ft (m) 32-13/16 (10) 32-13/16 (10)
Amount of Additional Charge of
Refrigerant oz/ft (g/m) 0.21 (20) 0.21 (20)
Indoor Unit FTK09NMVJU FTK12NMVJU
Front Panel Color White White
Airflow Rate
H
m³/min
(cfm)
11.8 (417) 12.3 (434)
M 8.4 (297) 8.8 (311)
L 6.9 (244) 7.0 (247)
SL 4.0 (141) 4.1 (145)
Fan
Type Cross Flow Fan Cross Flow Fan
Motor Output W 21 28
Speed Steps 5 Steps, Quiet, Auto 5 Steps, Quiet, Auto
Air Direction Control Right, Left, Horizontal, Downward Right, Left, Horizontal, Downward
Air Filter Removable, Washable, Mildew Proof Removable, Washable, Mildew Proof
Running Current (Rated) A 0.25 - 0.23 0.28 - 0.25
Power Consumption (Rated) W 28 - 28 31 - 31
Power Factor (Rated) % 53.8 - 52.9 53.2 - 53.9
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H × W × D) in. (mm) 11-1/4 × 30-5/16 × 8-3/4 (285 × 770 × 223) 11-1/4 × 30-5/16 × 8-3/4 (285 × 770 × 223)
Packaged Dimensions (H × W × D) in. (mm) 12 × 32-11/16 × 14-3/16 (305 × 831 × 360) 12 × 32-11/16 × 14-3/16 (305 × 831 × 360)
Weight Lbs (kg) 18 (8) 18 (8)
Gross Weight Lbs (kg) 24 (11) 25 (11)
Sound Pressure Level H / M / L / SL dB(A) 43 / 36 / 30 / 19 45 / 37 / 30 / 19
Outdoor Unit RK09NMVJU RK12NMVJU
Casing Color Ivory White Ivory White
Compressor
Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type
Model 1YC23AUXD 1YC23AUXD
Motor Output W 790 790
Refrigerant Oil Type FVC50K FVC50K
Charge oz (L) 12.4 (0.375) 12.4 (0.375)
Refrigerant Type R-410A R-410A
Charge Lbs (kg) 1.54 (0.70) 2.09 (0.95)
Airflow Rate Hm³/min
(cfm) 31.2 (1,102) 31.3 (1,105)
SL 29.3 (1,035) 24.5 (865)
Fan Type Propeller Propeller
Motor Output W 14 18
Running Current (Rated) A 3.52 - 3.18 4.14 - 3.74
Power Consumption (Rated) W 693 - 693 843 - 843
Power Factor (Rated) % 94.7 - 94.7 97.9 - 98.0
Starting Current A 3.77 —
Dimensions (H × W × D) in. (mm) 21-5/8 × 26-9/16 × 11-3/16 (550 × 675 × 284) 21-5/8 × 26-9/16 × 11-3/16 (550 × 675 × 284)
Packaged Dimensions (H × W × D) in. (mm) 24-3/4 × 32-11/16 × 16 (629 × 830 × 407) 24-3/4 × 32-11/16 × 16 (629 × 830 × 407)
Weight Lbs (kg) 55 (25) 60 (27)
Gross Weight Lbs (kg) 66 (30) 71 (32)
Sound Pressure Level H dB(A) 46 49
Drawing No. C: 3D093560 C: 3D093561A
Conversion Formulae
kcal/h = kW × 860
Btu/h = kW × 3412
cfm = m³/min × 35.3
Cooling Indoor ; 80°FDB (26.7°CDB) / 67°FWB (19.4°CWB)
Outdoor ; 95°FDB (35°CDB) / 75°FWB (24°CWB)
Piping Length 25 ft (7.5 m)