Daikin FTXL20G2V1B, FTXL25G2V1B, RXL20G2V1B, RXL20G2V1B9, FTXL35G2V1B Service Manual
...
SiENBE04-925_A
Service
Manual
Inverter Pair
Wall Mounted Type G-Series
[Applied Models]
z
Inverter Pair: Heat Pump
SiENBE04-925_A
Service
Manual
Inverter Pair
Wall Mounted Type G-Series
[Applied Models]
z
Inverter Pair: Heat Pump
SiENBE04-925_A
Table of Contents i
Inverter Pair
Wall Mounted Type
G-Series
zHeat Pump
Indoor Units
FTXL20G2V1B
FTXL25G2V1B
FTXL35G2V1B
Outdoor Units
RXL20G2V1B RXL20G2V1B9
RXL25G2V1B
RXL35G2V1B
SiENBE04-925_A
ii Table of Contents
1. Introduction ........................................................................................... vii
1.1 Safety Cautions ...................................................................................... vii
1.2 Used Icons .............................................................................................. xi
Part 1 List of Functions ................................................................ 1
1. Functions.................................................................................................2
Part 2 Specifications .................................................................... 3
1. Specifications ..........................................................................................4
Part 3 Printed Circuit Board Connector Wiring Diagram ............. 7
1. Printed Circuit Board Connector Wiring Diagram....................................8
1.1 Indoor Unit................................................................................................8
1.2 Outdoor Unit ...........................................................................................11
Part 4 Function and Control........................................................ 19
1. Main Functions......................................................................................20
1.1 Frequency Principle................................................................................20
1.2 Airflow Direction Control.........................................................................22
1.3 Fan Speed Control for Indoor Units........................................................23
1.4 Program Dry Operation ..........................................................................24
1.5 Automatic Operation...............................................................................25
1.6 Thermostat Control.................................................................................26
1.7 NIGHT SET Mode ..................................................................................27
1.8 ECONO Operation .................................................................................28
1.9 2-Area INTELLIGENT EYE Operation ...................................................29
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
3.10 Defrost Control .......................................................................................43
3.11 Electronic Expansion Valve Control .......................................................44
3.12 Malfunctions ...........................................................................................47
3.13 Forced Operation Mode .........................................................................48
3.14 Standby Electricity Saving......................................................................48
Part 5 Operation Manual ............................................................. 49
1. System Configuration............................................................................50
2. Operation Manual..................................................................................51
SiENBE04-925_A
Table of Contents iii
2.1 Auto Dry Cool Heat Fan Operation ........................................................52
2.2 Adjusting the Airflow Direction................................................................54
2.3 COMFORT AIRFLOW and INTELLIGENT EYE Operation....................56
2.4 POWERFUL Operation ..........................................................................59
2.5 OUTDOOR UNIT QUIET Operation.......................................................60
2.6 ECONO Operation .................................................................................61
2.7 TIMER Operation ...................................................................................62
2.8 WEEKLY TIMER Operation ...................................................................64
Part 6 Service Diagnosis............................................................. 69
1. Caution for Diagnosis............................................................................70
1.1 Troubleshooting with LED ......................................................................70
2. Problem Symptoms and Measures .......................................................71
3. Service Check Function ........................................................................72
3.1 ARC452 Series.......................................................................................72
4. Troubleshooting ....................................................................................75
4.1 Error Codes and Description ..................................................................75
4.2 Indoor Unit PCB Abnormality .................................................................76
4.3 Freeze-up Protection Control or Heating Peak-cut Control....................77
4.4 Fan Motor (DC Motor) or Related Abnormality.......................................79
4.5 Thermistor or Related Abnormality (Indoor Unit)....................................81
4.6 Signal Transmission Error (between Indoor Unit and Outdoor Unit) ......82
4.7 Unspecified Voltage (between Indoor Unit and Outdoor Unit) ...............83
4.8 Outdoor Unit PCB Abnormality...............................................................84
4.9 OL Activation (Compressor Overload) ...................................................86
4.10 Compressor Lock ...................................................................................87
4.11 DC Fan Lock ..........................................................................................88
4.12 Input Overcurrent Detection ...................................................................89
4.13 Four Way Valve Abnormality..................................................................90
4.14 Discharge Pipe Temperature Control.....................................................92
4.15 High Pressure Control in Cooling ...........................................................94
4.16 Compressor System Sensor Abnormality ..............................................96
4.17 Position Sensor Abnormality ..................................................................98
4.18 DC Voltage / Current Sensor Abnormality (20/25 Class) .....................101
4.19 CT or Related Abnormality (35 Class)..................................................102
4.20 Thermistor or Related Abnormality (Outdoor Unit)...............................104
4.21 Electrical Box Temperature Rise..........................................................106
4.22 Radiation Fin Temperature Rise ..........................................................108
4.23 Output Overcurrent Detection ..............................................................110
4.24 Refrigerant Shortage ............................................................................112
4.25 Low-voltage Detection or Over-voltage Detection................................115
4.26 Signal Transmission Error on Outdoor Unit PCB
(35 Class Only).....................................................................................117
5. Check ..................................................................................................118
5.1 How to Check .......................................................................................118
Part 7 Removal Procedure ........................................................ 126
1. Indoor Unit...........................................................................................128
1.1 Removal of Air Filter.............................................................................128
1.2 Removal of Front Panel........................................................................130
SiENBE04-925_A
iv Table of Contents
1.3 Removal of Front Grille ........................................................................132
1.4 Removal of Horizontal Blades / Vertical Blades...................................135
1.5 Removal of Electrical Box ....................................................................138
1.6 Removal of PCB...................................................................................141
1.7 Removal of Indoor Heat Exchanger .....................................................146
1.8 Removal of Swing Motors ....................................................................149
1.9 Removal of Fan Motor..........................................................................153
2. Outdoor Unit - RXL20G2V1B ..............................................................156
2.1 Removal of Outer Panels / Fan Motor..................................................156
2.2 Removal of Electrical Box ....................................................................164
2.3 Removal of Drain Pan Heater ..............................................................168
2.4 Removal of Thermistors .......................................................................170
2.5 Removal of PCB...................................................................................172
2.6 Removal of Reactor / Partition Plate ....................................................175
2.7 Removal of Sound Blanket...................................................................177
2.8 Removal of Four Way Valve.................................................................178
2.9 Removal of Compressor.......................................................................181
3. Outdoor Unit - RXL20G2V1B9 ............................................................183
3.1 Removal of Outer Panels / Fan Motor..................................................183
3.2 Removal of Electrical Box ....................................................................192
3.3 Removal of Drain Pan Heater ..............................................................195
3.4 Removal of PCB...................................................................................197
3.5 Removal of Reactor / Partition Plate ....................................................205
3.6 Removal of Sound Blanket...................................................................207
3.7 Removal of Four Way Valve.................................................................209
3.8 Removal of Compressor.......................................................................212
4. Outdoor Unit - RXL25G2V1B ..............................................................214
4.1 Removal of Outer Panels .....................................................................214
4.2 Removal of Electrical Box ....................................................................216
4.3 Removal of PCB...................................................................................221
4.4 Removal of Drain Pan Heater ..............................................................226
4.5 Removal of Sound Blanket...................................................................228
4.6 Removal of Outdoor Fan / Fan Motor...................................................230
4.7 Removal of Thermistors .......................................................................233
4.8 Removal of Four Way Valve / Electronic Expansion Valve ..................234
4.9 Removal of Compressor.......................................................................237
5. Outdoor Unit - RXL35G2V1B ..............................................................240
5.1 Removal of Outer Panels .....................................................................240
5.2 Removal of Outdoor Fan / Fan Motor...................................................244
5.3 Removal of Electrical Box ....................................................................248
5.4 Removal of PCB...................................................................................254
5.5 Removal of Drain Pan Heater ..............................................................257
5.6 Removal of Sound Blanket / Thermistors.............................................259
5.7 Removal of Four Way Valve.................................................................261
5.8 Removal of Electronic Expansion Valve...............................................262
5.9 Removal of Compressor.......................................................................263
Part 8 Trial Operation and Field Settings................................. 266
1. Trial Operation ....................................................................................267
2. Field Settings ......................................................................................268
2.1 When 2 Units are Installed in 1 Room..................................................268
SiENBE04-925_A
Table of Contents v
2.2 Standby Electricity Saving....................................................................269
2.3 Jumper and Switch Settings.................................................................270
3.
Application of Silicon Grease to a Power Transistor and a Diode Bridge
.271
Part 9 Appendix......................................................................... 272
1. Piping Diagrams..................................................................................273
1.1 Indoor Unit............................................................................................273
1.2 Outdoor Unit .........................................................................................274
2. Wiring Diagrams..................................................................................276
2.1 Indoor Unit............................................................................................276
2.2 Outdoor Unit .........................................................................................276
SiENBE04-925_A
vi Table of Contents
SiENBE04-925_A Introduction
vii
1. Introduction
1.1 Safety Cautions
Cautions and
Warnings
Be sure to read the following safety cautions before conducting repair work.
The caution items are classified into “ Warning” and “ Caution”. The “ Warning”
items are especially important since they can lead to death or serious injury if they are not
followed closely. The “ Caution” items can also lead to serious accidents under some
conditions if they are not followed. Therefore, be sure to observe all the safety caution items
described below.
About the pictograms
This symbol indicates the item for which caution must be exercised.
The pictogram shows the item to which attention must be paid.
This symbol indicates the prohibited action.
The prohibited item or action is shown in the illustration or near the symbol.
This symbol indicates the action that must be taken, or the instruction.
The instruction is shown in the illustration or near the symbol.
After the repair work is complete, be sure to conduct a test operation to ensure that the
equipment operates normally, and explain the cautions for operating the product to the
customer.
1.1.1 Cautions Regarding Safety of Workers
Warning
Be sure to disconnect the power cable plug from the plug socket before
disassembling the equipment for repair.
Working on the equipment that is connected to the power supply may cause an
electrical shook.
If it is necessary to supply power to the equipment to conduct the repair or
inspecting the circuits, do not touch any electrically charged sections of the
equipment.
If the refrigerant gas is discharged during the repair work, do not touch the
discharged refrigerant gas.
The refrigerant gas may cause frostbite.
When disconnecting the suction or discharge pipe of the compressor at the
welded section, evacuate the refrigerant gas completely at a well-ventilated
place first.
If there is a gas remaining inside the compressor, the refrigerant gas or
refrigerating machine oil discharges when the pipe is disconnected, and it may
cause injury.
If the refrigerant gas leaks during the repair work, ventilate the area. The
refrigerant gas may generate toxic gases when it contacts flames.
The step-up capacitor supplies high-voltage electricity to the electrical
components of the outdoor unit.
Be sure to discharge the capacitor completely before conducting repair work.
A charged capacitor may cause an electrical shock.
Do not start or stop the air conditioner operation by plugging or unplugging the
power cable plug.
Plugging or unplugging the power cable plug to operate the equipment may
cause an electrical shock or fire.
Introduction SiENBE04-925_A
viii
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-410A refrigerant models, be sure to use pipes, flare nuts and tools
for the exclusive use of the 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.
Warning
Caution
Do not repair the electrical components with wet hands.
Working on the equipment with wet hands may cause an electrical shock.
Do not clean the air conditioner by splashing water.
Washing the unit with water may cause an electrical shock.
Be sure to provide the grounding when repairing the equipment in a humid or
wet place, to avoid electrical shocks.
Be sure to turn off the power switch and unplug the power cable when cleaning
the equipment.
The internal fan rotates at a high speed, and cause injury.
Be sure to conduct repair work with appropriate tools.
The use of inappropriate tools may cause injury.
Be sure to check that the refrigerating cycle section has cooled down enough
before conducting repair work.
Working on the unit when the refrigerating cycle section is hot may cause
burns.
Use the welder in a well-ventilated place.
Using the welder in an enclosed room may cause oxygen deficiency.
SiENBE04-925_A Introduction
ix
1.1.2 Cautions Regarding Safety of Users
Warning
Be sure to use parts listed in the service parts list of the applicable model and
appropriate tools to conduct repair work. Never attempt to modify the
equipment.
The use of inappropriate parts or tools may cause an electrical shock,
excessive heat generation or fire.
If the power cable and lead wires have scratches or deteriorated, be sure to
replace them.
Damaged cable and wires may cause an electrical shock, excessive heat
generation or fire.
Do not use a joined power cable or extension cable, or share the same power
outlet with other electrical appliances, since it may cause an electrical shock,
excessive heat generation or fire.
Be sure to use an exclusive power circuit for the equipment, and follow the local
technical standards related to the electrical equipment, the internal wiring
regulations, and the instruction manual for installation when conducting
electrical work.
Insufficient power circuit capacity and improper electrical work may cause an
electrical shock or fire.
Be sure to use the specified cable for wiring between the indoor and outdoor
units. Make the connections securely and route the cable properly so that there
is no force pulling the cable at the connection terminals.
Improper connections may cause excessive heat generation or fire.
When wiring between the indoor and outdoor units, make sure that the terminal
cover does not lift off or dismount because of the cable.
If the cover is not mounted properly, the terminal connection section may cause
an electrical shock, excessive heat generation or fire.
Do not damage or modify the power cable.
Damaged or modified power cable may cause an electrical shock or fire.
Placing heavy items on the power cable, and heating or pulling the power cable
may damage the cable.
Do not mix air or gas other than the specified refrigerant (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.
Introduction SiENBE04-925_A
x
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 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 the combustible gas leaks and remains around the unit, it may cause a fire.
Check to see if the parts and wires are mounted and connected properly, and
if the connections at the soldered or crimped terminals are secure.
Improper installation and connections may cause excessive heat generation,
fire or an electrical shock.
If the installation platform or frame has corroded, replace it.
Corroded installation platform or frame may cause the unit to fall, resulting in
injury.
Check the grounding, and repair it if the equipment is not properly grounded.
Improper grounding may cause an electrical shock.
SiENBE04-925_A Introduction
xi
1.2 Used Icons
Icons are used to attract the attention of the reader to specific information. The meaning of each
icon is described in the table below:
Be sure to measure the insulation resistance after the repair, and make sure
that the resistance is 1 MΩ or higher.
Faulty insulation may cause an electrical shock.
Be sure to check the drainage of the indoor unit after the repair.
Faulty drainage may cause the water to enter the room and wet the furniture
and floor.
Do not tilt the unit when removing it.
The water inside the unit may spill and wet the furniture and floor.
Be sure to install the packing and seal on the installation frame properly.
If the packing and seal are not installed properly, water may enter the room and
wet the furniture and floor.
For unitary type
only
Caution
Icon Type of
Information
Description
Note:
Note A “note” provides information that is not indispensable, but may
nevertheless be valuable to the reader, such as tips and tricks.
Caution
Caution A “caution” is used when there is danger that the reader, through
incorrect manipulation, may damage equipment, loose data, get
an unexpected result or has to restart (part of) a procedure.
Warning
Warning A “warning” is used when there is danger of personal injury.
Reference A “reference” guides the reader to other places in this binder or
in this manual, where he/she will find additional information on a
specific topic.
Introduction SiENBE04-925_A
xii
SiENBE04-925_A
List of Functions 1
Part 1
List of Functions
1. Functions.................................................................................................2
Functions SiENBE04-925_A
2 List of Functions
1. Functions
Category Functions
FTXL20/25G2V1B
RXL20/25G2V1B
RXL20G2V1B9
FTXL35G2V1B
RXL35G2V1B
Category Functions
FTXL20/25G2V1B
RXL20/25G2V1B
RXL20G2V1B9
FTXL35G2V1B
RXL35G2V1B
Basic
Function
Inverter
(with Inverter Power Control)
{{
Health &
Clean
Air-Purifying Filter — —
Operation Limit for Cooling (°CDB)
–10
~46
–10
~46
Photocatalytic Deodorizing Filter — —
Operation Limit for Heating (°CWB)
–20
~20
–20
~20
Air-Purifying Filter with
Photocatalytic Deodorizing Function
——
PAM Control {{
Titanium Apatite Photocatalytic
Air-Purifying Filter
{{
Standby Electricity Saving { —
Compressor Oval Scroll Compressor — — Air Filter (Prefilter) {{
Swing Compressor {{ Wipe-Clean Flat Panel {{
Rotary Compressor — — Washable Grille — —
Reluctance DC Motor {{ MOLD PROOF Operation — —
Comfortable
Airflow
Power-Airflow Flap — — Good-Sleep Cooling Operation — —
Power-Airflow Dual Flaps {{Timer WEEKLY TIMER Operation {{
Power-Airflow Diffuser — — 24-Hour ON/OFF TIMER {{
Wide-Angle Louvers {{ NIGHT SET Mode {{
Vertical Auto-Swing
(Up and Down)
{{
Worry Free
“Reliability &
Durability”
Auto-Restart
(after Power Failure)
{{
Horizontal Auto-Swing
(Right and Left)
{{
Self-Diagnosis (Digital, LED)
Display
{{
3-D Airflow {{ Wiring Error Check — —
COMFORT AIRFLOW Operation {{
Anti-Corrosion Treatment of
Outdoor Heat Exchanger
{{
Comfort
Control
Auto Fan Speed {{ Drain Pan Heater {{
Indoor Unit Quiet Operation {{
Flexibility Multi-Split / Split Type Compatible
Indoor Unit
——
NIGHT QUIET Mode (Automatic) — — Flexible Voltage Correspondence — —
OUTDOOR UNIT QUIET Operation
(Manual)
{{ High Ceiling Application — —
2-Area INTELLIGENT EYE
Operation
{{ Chargeless 10 m 10 m
INTELLIGENT EYE Operation — — Either Side Drain (Right or Left) {{
Quick Warming Function
(Preheating Operation)
{{ Power Selection — —
Hot-Start Function {{
Remote
Control
5-Rooms Centralized Controller
(Option)
{{
Automatic Defrosting {{ Remote Control Adapter
(Normal Open Pulse Contact)
(Option)
{{
Operation
Automatic Operation {{
Program Dry Operation
{{
Remote Control AdapterAdapter
(Normal Open Contact) (Option)
{{
Fan Only {{
DIII-NET Compatible (Adapter)
(Option)
{{
Lifestyle
Convenience
New POWERFUL Operation
(Non-Inverter)
——
Remote
Control
Wireless {{
Inverter POWERFUL Operation {{ Wired (Option) {{
Priority-Room Setting — —
COOL / HEAT Mode Lock — —
HOME LEAVE Operation — —
ECONO Operation {{
Indoor Unit ON/OFF Button {{
Signal Receiving Sign {{
Temperature Display — —
Note: { : Holding Functions
— : No Functions
SiENBE04-925_A
Specifications 3
Part 2
Specifications
1. Specifications ..........................................................................................4
Specifications SiENBE04-925_A
4 Specifications
1. Specifications
50 Hz, 220 - 230 - 240V
Note: The data are based on the conditions shown in the table below.
Models
Indoor Units FTXL20G2V1B FTXL20G2V1B
Outdoor Units
RXL20G2V1B RXL20G2V1B9
Cooling Heating Cooling Heating
Capacity
Rated (Min. ~ Max.)
kW 2.0 (1.4 ~ 4.0) 2.7 (1.4 ~ 5.2) 2.0 (1.4 ~ 4.0) 2.7 (1.4 ~ 5.2)
Btu/h 6,800 (4,800 ~ 13,600) 9,200 (4,800 ~ 17,700) 6,800 (4,800 ~ 13,600) 9,200 (4,800 ~ 17,700)
kcal/h 1,720 (1,200 ~ 3,440) 2,320 (1,200 ~ 4,470) 1,720 (1,200 ~ 3,440) 2,320 (1,200 ~ 4,470)
Moisture Removal L/h 0.9 — 0.9 —
Running Current (Rated) A 2.5 - 2.4 - 2.3 3.1 - 3.0 - 2.9 2.5 - 2.4 - 2.3 3.1 - 3.0 - 2.9
Power Consumption
Rated (Min. ~ Max.)
W 450 (350 ~ 1,190) 590 (340 ~ 1,460) 450 (350 ~ 1,190) 590 (340 ~ 1,460)
Power Factor % 81.8 - 81.5 - 81.5 86.5 - 85.5 - 84.8 81.8 - 81.5 - 81.5 86.5 - 85.5 - 84.8
COP (Rated) W/W 4.44 (4.00 ~ 3.36) 4.58 (4.12 ~ 3.56) 4.44 (4.00 ~ 3.36) 4.58 (4.12 ~ 3.56)
Piping
Connections
Liquid mm φ 6.4 φ 6.4
Gas mm φ 9.5 φ 9.5
Drain mm φ18.0 φ18.0
Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes
Max. lnterunit Piping Length m 20 20
Max. lnterunit Height Difference m 15 15
Chargeless m 10 10
Amount of Additional Charge of
Refrigerant
g/m 20 20
Indoor Units FTXL20G2V1B FTXL20G2V1B
Front Panel Color White White
Airflow Rate
m³/min
(cfm)
H 10.4 (367) 10.6 (374) 10.4 (367) 10.6 (374)
M 7.7 (270) 8.5 (302) 7.7 (270) 8.5 (302)
L 4.8 (170) 6.4 (226) 4.8 (170) 6.4 (226)
SL 3.5 (125) 5.4 (191) 3.5 (125) 5.4 (191)
Fan
Type Cross Flow Fan Cross Flow Fan
Motor Output W 23 23
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 0.12 - 0.12 - 0.11 0.13 - 0.13 - 0.12 0.12 - 0.12 - 0.11 0.13 - 0.13 - 0.12
Power Consumption (Rated) W 26 - 26 - 26 28 - 28 - 28 26 - 26 - 26 28 - 28 - 28
Power Factor % 98.5 - 94.2 - 98.5 97.9 - 93.6 - 97.2 98.5 - 94.2 - 98.5 97.9 - 93.6 - 97.2
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H × W × D) mm 295 × 800 × 215 295 × 800 × 215
Packaged Dimensions (H × W × D) mm 274 × 870 × 366 274 × 870 × 366
Weight kg 10 10
Gross Weight kg 14 14
Operation
Sound
H / M / L / SL dBA 42 / 34 / 26 / 23 42 / 36 / 29 / 26 42 / 34 / 26 / 23 42 / 36 / 29 / 26
Sound Power dBA 58 58 58 58
Outdoor Units RXL20G2V1B RXL20G2V1B9
Casing Color Ivory White Ivory White
Compressor
Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type
Model 1YC23AFXD 1YC23AEXD
Motor Output W 600 600
Refrigerant
Oil
Type FVC50K FVC50K
Charge L 0.375 0.375
Refrigerant
Type R-410A R-410A
Charge kg 1.2 1.2
Airflow Rate
m³/min
(cfm)
H 36.0 (1,272) 30.2 (1,066) 36.0 (1,272) 30.6 (1,080)
SL 31.4 (1,109) 22.6 (798) 32.7 (1,153) 28.5 (1,005)
Fan
Type Propeller Propeller
Motor Output W 50 23
Running Current (Rated) A 2.38 - 2.28 - 2.19 2.97 - 2.87 - 2.78 2.38 - 2.28 - 2.19 2.97 - 2.87 - 2.78
Power Consumption (Rated) W 424 - 424 - 424 562 - 562 - 562 424 - 424 - 424 562 - 562 - 562
Power Factor % 81.0 - 80.9 - 80.7 86.0 - 85.1 - 84.2 81.0 - 80.9 - 80.7 86.0 - 85.1 - 84.2
Starting Current A 4.8 4.8
Dimensions (H × W × D) mm 550 × 765 × 285 550 × 765 × 285
Packaged Dimensions (H × W × D) mm 612 × 906 × 364 612 × 906 × 364
Weight kg 34 34
Gross Weight kg 40 38
Operation
Sound
H / SL dBA 48 / 44 48 / 45 48 / 44 48 / 45
Sound Power H dBA 63 63 63 63
Drawing No. 3D062678 3D066479
Conversion Formulae
kcal/h = kW × 860
Btu/h = kW × 3412
cfm = m³/min × 35.3
Cooling Heating Piping Length
Indoor ; 27°CDB / 19°CWB
Outdoor ; 35°CDB / 24°CWB
Indoor ; 20°CDB
Outdoor ; 7°CDB / 6°CWB
5 m
SiENBE04-925_A Specifications
Specifications 5
50 Hz, 220 - 230 - 240V
Note: The data are based on the conditions shown in the table below.
Models
Indoor Units FTXL25G2V1B FTXL35G2V1B
Outdoor Units
RXL25G2V1B RXL35G2V1B
Cooling Heating Cooling Heating
Capacity
Rated (Min. ~ Max.)
kW 2.5 (1.7 ~ 5.0) 3.4 (1.7 ~ 6.0) 3.5 (1.7 ~ 5.3) 4.0 (1.7 ~ 6.6)
Btu/h 8,500 (5,800 ~ 17,100) 11,600 (5,800 ~ 20,500) 11,900 (5,800 ~ 18,100) 13,600 (5,800 ~ 22,500)
kcal/h 2,150 (1,460 ~ 4,300) 2,920 (1,460 ~ 5,160) 3,010 (1,460 ~ 4,560) 3,440 (1,460 ~ 5,680)
Moisture Removal L/h 1.2 — 1.9 —
Running Current (Rated) A 3.1 - 3.0 - 2.9 4.3 - 4.1 - 3.9 4.1 - 3.9 - 3.7 4.3 - 4.1 - 3.9
Power Consumption
Rated (Min. ~ Max.)
W 550 (440 ~ 2,230) 770 (400 ~ 1,980) 870 (440 ~ 1,810) 920 (400 ~ 2,010)
Power Factor % 80.6 - 79.7 - 79.0 81.3 - 81.7 - 82.3 96.4 - 96.9 - 97.9 97.2 - 97.5 - 98.2
COP (Rated) W/W 4.55 (3.86 ~ 2.24) 4.42 (4.25 ~ 3.03) 4.02 (3.86 ~ 2.93) 4.35 (4.25 ~ 3.30)
Piping
Connections
Liquid mm φ 6.4 φ 6.4
Gas mm φ 9.5 φ 12.7
Drain mm φ 18.0 φ 18.0
Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes
Max. lnterunit Piping Length m 20 20
Max. lnterunit Height Difference m 15 15
Chargeless m 10 10
Amount of Additional Charge of
Refrigerant
g/m 20 20
Indoor Units FTXL25G2V1B FTXL35G2V1B
Front Panel Color White White
Airflow Rate
m³/min
(cfm)
H 9.1 (321) 11.2 (395) 10.2 (360) 11.0 (388)
M 7.7 (273) 9.4 (333) 8.6 (305) 9.3 (330)
L 6.3 (221) 7.7 (271) 7.0 (246) 7.6 (267)
SL 5.4 (190) 6.8 (240) 6.0 (212) 6.7 (236)
Fan
Type Cross Flow Fan Cross Flow Fan
Motor Output W 23 23
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 0.11 - 0.11 - 0.10 0.14 - 0.14 - 0.13 0.12 - 0.12 - 0.11 0.15 - 0.14 - 0.14
Power Consumption (Rated) W 24 - 24 - 24 30 - 30 - 30 26 - 26 - 26 32 - 32 - 32
Power Factor % 99.2 - 94.9 - 100.0 97.4 - 93.2 - 96.2 98.5 - 94.2 - 98.5 97.0 - 99.4 - 95.2
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H × W × D) mm 295 × 800 × 215 295 × 800 × 215
Packaged Dimensions ( H × W × D) mm 274 × 870 × 366 274 × 870 × 366
Weight kg 10 10
Gross Weight kg 14 14
Operation
Sound
H / M / L / SL dBA 42 / 38 / 33 / 30 42 / 38 / 33 / 30 43 / 39 / 34 / 31 44 / 39 / 34 / 31
Sound Power dBA 58 58 59 60
Outdoor Units RXL25G2V1B RXL35G2V1B
Casing Color Ivory White Ivory White
Compressor
Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type
Model 2YC36BXD 2YC36BXD
Motor Output W 1,100 1,100
Refrigerant
Oil
Type FVC50K FVC50K
Charge L 0.65 0.65
Refrigerant
Type R-410A R-410A
Charge kg 1.3 1.7
Airflow Rate
m³/min
(cfm)
H 37.3 (1,317) 31.3 (1,107) 50.9 (1,797) 45.0 (1,589)
SL 30.6 (1,079) 27.2 (959) 48.9 (1,727) 43.1 (1,522)
Fan
Type Propeller Propeller
Motor Output W 50 53
Running Current (Rated) A 2.99 - 2.89 - 2.80 4.16 - 3.96 - 3.77 3.98 - 3.78 - 3.59 4.15 - 3.96 - 3.76
Power Consumption (Rated) W 526 - 526 - 526 740 - 740 - 740 844 - 844 - 844 888 - 888 - 888
Power Factor % 80.0 - 79.1 - 78.3 80.9 - 81.2 - 81.8 96.4 - 97.1 - 98.0 97.3 - 97.5 - 98.4
Starting Current A 7.4 7.3
Dimensions (H × W × D) mm 550 × 765 × 285 735 × 825 × 300
Packaged Dimensions (H × W × D) mm 612 × 906 × 364 797 × 960 × 390
Weight kg 39 48
Gross Weight kg 45 53
Operation
Sound
H / SL dBA 48 / 44 48 / 45 48 / 44 48 / 45
Sound Power H dBA 63 63 62 62
Drawing No. 3D062679 3D062680
Conversion Formulae
kcal/h = kW × 860
Btu/h = kW × 3412
cfm = m³/min × 35.3
Cooling Heating Piping Length
Indoor ; 27°CDB / 19°CWB
Outdoor ; 35°CDB / 24°CWB
Indoor ; 20°CDB
Outdoor ; 7°CDB / 6°CWB
5 m
Specifications SiENBE04-925_A
6 Specifications
SiENBE04-925_A
Printed Circuit Board Connector Wiring Diagram 7
Part 3
Printed Circuit Board
Connector Wiring Diagram
1. Printed Circuit Board Connector Wiring Diagram....................................8
1.1 Indoor Unit................................................................................................8
1.2 Outdoor Unit ...........................................................................................11
Printed Circuit Board Connector Wiring Diagram SiENBE04-925_A
8 Printed Circuit Board Connector Wiring Diagram
1. Printed Circuit Board Connector Wiring Diagram
1.1 Indoor Unit
Connectors and
Other Parts
PCB (1): Control PCB
PCB (2): Signal Receiver PCB
PCB (3): Display PCB
PCB (4): INTELLIGENT EYE Sensor PCB
1) S1 Connector for DC fan motor
2) S21 Connector for centralized control (HA)
3) S25 Connector for INTELLIGENT EYE sensor PCB
4) S32 Connector for indoor heat exchanger thermistor
5) S41 Connector for swing motors
6) S46 Connector for display PCB
7) S47 Connector for signal receiver PCB
8) H1, H2, H3, FGConnector for terminal board
9) JA Address setting jumper
∗ Refer to page 268 for detail.
JB Fan speed setting when compressor stops for thermostat OFF
JC Power failure recovery function (auto-restart)
∗ Refer to page 270 for detail.
10) LED A LED for service monitor (green)
11) FU1 (F1U) Fuse (3.15 A, 250 V)
12) V1 Varistor
1) S48 Connector for control PCB
1) S49 Connector for control PCB
2) SW1 (S1W) Forced operation ON / OFF button
3) LED1 (H1P) LED for operation (green)
4) LED2 (H2P) LED for timer (yellow)
5) LED3 (H3P) LED for INTELLIGENT EYE (green)
6) RTH1 (R1T) Room temperature thermistor
1) S26 Connector for control PCB
SiENBE04-925_A Printed Circuit Board Connector Wiring Diagram
Printed Circuit Board Connector Wiring Diagram 9
PCB Detail PCB (1): Control PCB
V1
FU1
S1
S41
S21
S47
JB
JA
JC
S46 S25
LED A
S32
FG
H1
H2
H3
2P206687-1
Printed Circuit Board Connector Wiring Diagram SiENBE04-925_A
10 Printed Circuit Board Connector Wiring Diagram
PCB (4): INTELLIGENT EYE Sensor PCB
PCB (2): Signal Receiver PCB PCB (3): Display PCB
3P210728-1
S48
3P210728-1
RTH1 SW1
S49
LED3 LED2 LED1
S26
3EB86013-1
SiENBE04-925_A Printed Circuit Board Connector Wiring Diagram
Printed Circuit Board Connector Wiring Diagram 11
1.2 Outdoor Unit
1.2.1 RXL20G2V1B
Connectors and
Other Parts
PCB (1): Filter PCB
PCB (2): Main PCB
1) S11 Connector for main PCB
2) HL1, HN1, S Connector for terminal board
3) E1 Terminal for earth
4) E2 Connector for terminal board (earth)
5) HL2, HN2 Connector for main PCB
6) HR1 Connector for reactor
7) FU3 Fuse (20 A, 250 V)
8) V2, V3 Varistor
1) S10 Connector for filter PCB
2) S20 Connector for electronic expansion valve coil
3) S30 Connector for compressor
4) S40 Connector for overload protector
5) S50 Connector for magnetic relay
6) S70 Connector for fan motor
7) S80 Connector for four way valve coil
8) S90 Connector for thermistors
(outdoor temperature, outdoor heat exchanger, discharge pipe)
9) HL3, HN3 Connector for filter PCB
10) HR2 Connector for reactor
11) FU1, FU2 Fuse (3.15 A, 250 V)
12) LED A LED for service monitor (green)
13) V1 Varistor
14) J5 Jumper for improvement of defrost performance
∗ Refer to page 270 for detail.
Printed Circuit Board Connector Wiring Diagram SiENBE04-925_A
12 Printed Circuit Board Connector Wiring Diagram
PCB Detail PCB (1): Filter PCB
PCB (2): Main PCB
E1
E2
V2
FU3
HL1 HN1 S
S50
(on main PCB)
HL2
S11
HN2
HR1
3P203203-1
V3
S10
S20
2P203198-1
J5
S90
S50S40
S70
LED A
FU2
V1S80HL3
HR2
HN3
S30
FU1
SiENBE04-925_A Printed Circuit Board Connector Wiring Diagram
Printed Circuit Board Connector Wiring Diagram 13
1.2.2 RXL20G2V1B9
Connectors and
Other Parts
PCB (1): Filter PCB
PCB (2): Main PCB
PCB (3): Forced Operation Button PCB
1) S11 Connector for main PCB
2) AC1, AC2, S Connector for terminal board
3) E1, E2 Terminal for earth
4) HL2, HN2 Connector for main PCB
5) HR1 Connector for reactor
6) FU1 Fuse (3.15 A, 250 V)
7) FU3 Fuse (20 A, 250 V)
8) V2, V3 Varistor
1) S10 Connector for filter PCB
2) S20 Connector for electronic expansion valve coil
3) S40 Connector for overload protector
4) S50 Connector for magnetic relay
5) S70 Connector for fan motor
6) S80 Connector for four way valve coil
7) S90 Connector for thermistors
(outdoor temperature, outdoor heat exchanger, discharge pipe)
8) S100 Connector for forced operation button PCB
9) HL3, HN3 Connector for filter PCB
10) HR2 Connector for reactor
11) U, V, W Connector for compressor
12) FU2 Fuse (3.15 A, 250 V)
13) LED A LED for service monitor (green)
14) V1 Varistor
15) J5 Jumper for improvement of defrost performance
∗ Refer to page 270 for detail.
1) S110 Connector for main PCB
2) SW1 Forced operation ON/OFF button
Printed Circuit Board Connector Wiring Diagram SiENBE04-925_A
14 Printed Circuit Board Connector Wiring Diagram
PCB Detail PCB (1): Filter PCB
PCB (2): Main PCB
PCB (3): Forced Operation Button PCB
HR1
HL2
3P254234-1
FU1
HN2
S
FU3
AC2
E1, E2
AC1
S11
V3V2
S50
(on main PCB)
S10 J5 S90
FU2 S100 S50
2P254206-1
S70
S40
S20
S80
HL3
HN3
V1
LED A
UVW
HR2
SW1
S110
3P255755-1
SiENBE04-925_A Printed Circuit Board Connector Wiring Diagram
Printed Circuit Board Connector Wiring Diagram 15
1.2.3 RXL25G2V1B
Connectors and
Other Parts
PCB (1): Control PCB
1) S20 Connector for electronic expansion valve coil
2) S40 Connector for overload protector
3) S70 Connector for fan motor
4) S80 Connector for four way valve coil
5) S90 Connector for thermistors
(outdoor temperature, outdoor heat exchanger, discharge pipe)
6) U, V, W Connector for compressor
7) HL1, HN1, S Connector for terminal board
8) E (E2) Connector for earth
9) HR1, HR2 Connector for reactor
10) LED A LED for service monitor (green)
11) FU1, FU2 Fuse (3.15 A, 250 V)
12) FU3 Fuse (30 A, 250 V)
13) J5 Jumper for improvement of defrost performance
∗ Refer to page 270 for detail.
14) V1, V3, V4 Varistor
Printed Circuit Board Connector Wiring Diagram SiENBE04-925_A
16 Printed Circuit Board Connector Wiring Diagram
PCB Detail PCB (1): Control PCB
HN1 HL1
E (E2)
S
V1
FU1
LED A
S80
S20 S90 S70
HR2
HR1
FU2
S40 J5
U, V, W
2P208173-1
V3
V4
FU3
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