Daikin FTK-J series User manual

TECHNICAL MANUAL
Inverter Single Split
Series Air Conditioner
FTK-J, FTXN-J Series
— Cooling only & Heatpump [50Hz] —
TM-5WMY-J-ST-A2
R410A

Table of Contents
i
Table of Contents
Nomenclature......................................................................................................................1
Indoor ............................................................................................................................1
Outdoor..........................................................................................................................1
Product Line-Up.............................................................................................................2
Application Information .....................................................................................................4
Operating Range ...........................................................................................................4
Refrigerant Circuit Diagrams .........................................................................................5
Installation Guideline .....................................................................................................6
Sound Data........................................................................................................................10
Sound Pressure Level ................................................................................................10
NC Curve..................................................................................................................... 11
Engineering & Physical Data...........................................................................................13
Performance Data.............................................................................................................15
Calculation Steps.........................................................................................................15
Performance Tables.....................................................................................................17
Outline & Dimension ........................................................................................................25
Wiring Diagram .................................................................................................................28
Service & Maintenance ....................................................................................................32
Troubleshooting ...............................................................................................................34

Nomenclature
1
Nomenclature
Indoor
FT 25 J X V1 9K
Power Supply
V1: 220-240V 1 phase 50 Hz
Factory Origin
X: Malaysia
Product Series
J: J Series
Capacity
25: 2500 Watt*
System
K: Inverter Cooling Only
XN: Inverter Heat Pump
Outdoor
R25 F X V1 9K
Power Supply
V1: 220-240V / 1 Phase / 50 Hz
Factory Origin
X: Malaysia
Product Series
F: F Series
C: C Series
Capacity
25: 2500 Watt*
System
K: Inverter Cooling Only
XN: Inverter Heat Pump
Revision
“ - “ : Original Copy
9 : First Revision
Revision
“ - “ : Original Copy
9 : First Revision
Remark:
* : Capacity value under Nomenclature is an indication.
Please refer to Engineering and Physical Data for exact capacity value.
Model
FT: Wall Mounted
Model
R: Single Split Condensing Unit

Nomenclature
2
Product Line-Up
Indoor Unit
FTK, FTXN
Nomenclature
Classification
Handset PCB Air Purification
BRC52A62 BRC52A61 W_2_03C W_2_04A Saranet Filter Titanium Apatite Filter
COOLING
FTK25JXV19 X X X X
FTK35JXV19 X X X X
FTK50JXV19 X X X X
FTK60JXV19 X X X X
HEATPUMP
FTXN25JXV1 X X X X
FTXN35JXV1 X X X X
FTXN50JXV1 X X X X
FTXN60JXV1 X X X X

Nomenclature
3
Outdoor Unit
RK, RXN
Nomenclature
Refrigerant Control PCB Fin Compressor Others
Cap Tube EXV Main PCB (ADGPA31) Main PCB (2P273854) Filter PCB (3P273862) Hydrophilic (Blue) Hydrophilic (Gold) Bare Aluminium Swing Drain Elbow
COOLING
RK25FXV19 X X X X
RK35FXV19 X X X X
RK50CXV19 X X X X X
RK60CXV19 X X X X X
HEATPUMP
RXN25FXV1 X X X X X
RXN35FXV1 X X X X X
RXN50CXV1 X X X X X X
RXN60CXV1 X X X X X X

4
Application Information
Application Information
Operating Range
Ensure the operating temperature is in allowable range.
Cooling
FTK25/35JXV19 – RK25/35FXV19
FTXN25/35JXV1 – RXN25/35FXV1
FTK50/60JXV19 – RK50/60CXV19
FTXN50/60JXV1 – RXN50/60CXV1
Heating
FTXN25/35/50/60JXV1 – RXN25/35FXV1;50/60CXV1

5
Application Information
Refrigerant Circuit Diagrams
Model: FTK25JXV19 – RK25FXV19 / FTK35JXV19 – RK35FXV19 / FTK50JXV19 – RK50CXV19 /
FTK60JXV19 – RK60CXV19
PIPING
GAS
3 WAY
VALVE
MUFFLER
COOLING OPERATION
PIPING
LIQUID
RETURN AIR SENSOR
HEAT EXCHANGER
(INDOOR UNIT)
PIPE TEMPERATURE SENSOR
DISCHARGE
ACCUMULATOR
COMPRESSOR
STRAINER
OUTDOOR UNIT
INDOOR UNIT
3 WAY
VALVE
ELECTRONIC EXPANSION
VALVE
PIPE TEMPERATURE SENSOR
RETURN AIR SENSOR
HEAT EXCHANGER
(OUTDOOR UNIT)
Model: FTXN25JXV1 – RXN25FXV1 / FTXN35JXV1 – RXN35FXV1 / FTXN50JXV1 – RXN50CXV1 /
FTXN60JXV1 – RXN60CXV1
3 WAY VALVE MUFFLER
MUFFLER
4 WAY VALVE
Cooling operation
Heating operation
PIPING
LIQUID
ELECTRONIC EXPANSION
VALVE
RETURN AIR SENSOR
HEAT EXCHANGER
(OUTDOOR UNIT)
PIPE TEMPERATURE SENSOR
DISCHARGE PIPE
SENSOR
PIPE TEMPERATURE SENSOR
RETURN AIR SENSOR
HEAT EXCHANGER
(OUTDOOR UNIT)
COMPRESSOR
ACCUMULATOR
STRAINER
STRAINER
OUTDOOR UNIT
INDOOR UNIT
2 WAY VALVE
PIPING
GAS

6
Application Information
Installation Guideline
Sharp edges and coil surfaces are potential injury hazard. Avoid from contact with them.
Installation Diagram
Front panel
50mm or more from walls
(on both sides)
Indoor unit
Air filter
M4 x 12L
30mm or more from ceiling Caulk pipe hole
gap with putty.
Cut thermal insulation pipe
to an appropriate length and
wrap it with tape, making
sure that no gap is left in the
insulation pipe’s cut line.
Wrap the insulation pipe with the
finishing tape from bottom to top.
Outdoor Unit
Opening service lid
Service lid is opening/closing
type.
Opening method
1) Remove the service lid
screws.
2) Pull out the service lid
diagonally down in the
direction of the arrow.
3) Pull down.
Service lid

7
Application Information
Outdoor Clearance
If the condensing unit is operated in an atmosphere containing oils (including machine
oils), salt (coastal area), sulphide gas (near hot spring, oil refinery plant), such as
substances may lead to failure of the unit.
• Where a wall or order obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the
installation guidelines below.
• For any of the below installation patterns, the wall height on the exhaust side should be 1200mm or less.
Model: RK25/35FXV19, RXN25/35FXV1
Wall facing one side Wall facing two side
More than 50
Side View Top View
Top View
Unit : mm
More than 50
More than 150
More than 50 More than 300
More than 50
More than 100
More
than 100
1200 or
less
More than 150
Wall facing three side
Model: RK50/60CXV19, RXN50/60CXV1
A
AIR INLET AIR DISCHARGE
B
OBSTACLE OBSTACLE
C
AIR INLET
SERVICE SPACE
D
OBSTACLE OBSTACLE
ALL MODELS
Minimum Distance
A
300 mm
B
1000 mm
C
300 mm
D
500 mm

8
Application Information
Cable Size
Model Unit FTK25JXV19 FTK35JXV19 FTK50JXV19 FTK60JXV19
RK25FXV19 RK35FXV19 RK50CXV19 RK60CXV19
Power supply cable size
Number of wire
mm21.5
3
2.5
3
Interconnection cable size
Number of wire
mm21.5
4
2.5
4
Recommended fuse A 16 20
Model Unit FTXN25JXV1 FTXN35JXV1 FTXN50JXV1 FTXN60JXV1
RXN25CXV19 RXN35CXV19 RXN50CXV19 RXN60CXV19
Power supply cable size
Number of wire
mm21.5
3
2.5
3
Interconnection cable size
Number of wire
mm21.5
4
2.5
4
Recommended fuse A 16 20