Daikin E Series User manual

Inverter Pair
Wall Mounted Type E-Series
[Applied Models]
zInverter Pair : Heat Pump
SiBE04 - 624

SiBE04-624
Table of Contents i
Inverter Pair
E-Series
zHeat Pump
Indoor Units
FTXR28EV1B
FTXR42EV1B
FTXR50EV1B
Outdoor Units
RXR28EV1B
RXR42EV1B
RXR50EV1B

SiBE04-624
ii Table of Contents
1. Introduction ............................................................................................vi
1.1 Safety Cautions.......................................................................................vi
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...........................................................................................10
Part 4 Function and Control........................................................ 13
1. Description of Operation .......................................................................15
1.1 Indoor Unit..............................................................................................15
1.2 Outdoor Unit...........................................................................................16
2. Main Functions......................................................................................17
2.1 “URURU” Humidifying / Humid Heating Operation.................................17
2.2 “SARARA” Drying Operation..................................................................26
2.3 Comfort Sleep Operation........................................................................28
2.4 MOISTURIZING Operation ....................................................................30
2.5 Automatic Operation...............................................................................31
2.6 Comfort Airflow Mode.............................................................................32
2.7 Cooling Breeze Operation......................................................................34
2.8 Power-airflow Dual Flaps .......................................................................35
2.9 Wide-angle Louvers ...............................................................................36
2.10 3-D Airflow..............................................................................................37
2.11 POWERFUL Operation..........................................................................38
2.12 Indoor Unit Quiet Operation ...................................................................39
2.13 Multi-colored Indicator Lamp..................................................................39
2.14 Monitor Brightness Setting.....................................................................40
2.15 Information Display.................................................................................40
2.16 MOLD PROOF Operation ......................................................................41
2.17 Mold Proof Stick.....................................................................................43
2.18 MOLD SHOCK Operation ......................................................................44
2.19 HOME LEAVE Ventilation......................................................................47
2.20 FLASH STREAMER AIR PURIFYING Operation ..................................48
2.21 Fresh Air Supply Ventilation...................................................................51
2.22 Wipe-clean Flat Panel............................................................................53
2.23 Filter Cleaning Indicator (Remote Controller).........................................53
2.24 TIMER Operation ...................................................................................54
2.25 Night Set Mode.......................................................................................55
2.26 Table for Special Modes.........................................................................56
2.27 Thermostat Control.................................................................................58
2.28 Fan Speed Control for Indoor Units........................................................59
2.29 Draft Prevention (HOT Start)..................................................................61

SiBE04-624
Table of Contents iii
3. Control Specification.............................................................................62
3.1 Frequency Control..................................................................................62
3.2 Preheating Operation (Quick Warming Function) ..................................63
3.3 Four-way Valve Operation......................................................................64
3.4 Compressor Start up Protection.............................................................65
3.5 Fan Speed Control for Outdoor Unit.......................................................66
3.6 Fin Thermistor Control............................................................................66
3.7 Input Current Control..............................................................................67
3.8 Peak-cut Control.....................................................................................68
3.9 Indoor Coil Freeze-up Protection ...........................................................69
3.10 Dew Prevention......................................................................................70
3.11 Liquid Compression Protection 2 ...........................................................71
3.12 Discharge Pipe Temperature Control.....................................................72
3.13 Automatic Defrosting..............................................................................73
3.14 Electronic Expansion Valve Control.......................................................75
Part 5 System Configuration....................................................... 81
1. Installation Manual................................................................................82
1.1 Indoor Units............................................................................................82
1.2 Outdoor Units.........................................................................................96
2. System Configuration..........................................................................106
3. Instruction............................................................................................107
3.1 Safety Precautions...............................................................................107
3.2 Names and Functions of Parts.............................................................108
3.3 Preparation before Operation...............................................................110
3.4 Cooling · “SARARA” DRYING Operation.............................................112
3.5 Heating · “URURU” HUMIDIFYING Operation.....................................113
3.6 AUTO / MOISTURIZING Operation .....................................................114
3.7 Adjusting Airflow Direction · Comfort Airflow Mode · Cooling Breeze ·
Airflow Rate..........................................................................................115
3.8 FLASH STREAMER AIR PURIFYING · FRESH AIR SUPPLY
VENTILATION Operation / HOME LEAVE VENTILATION..................116
3.9 TIMER Operation .................................................................................117
3.10 COMFORT SLEEP / POWERFUL Operation ......................................118
3.11 SET UP ................................................................................................119
3.12 MOLD PROOF Operation ....................................................................120
3.13 MOLD SHOCK Operation / INFORMATION DISPLAY........................121
3.14 Care and Cleaning ...............................................................................122
3.15 Troubleshooting....................................................................................130
Part 6 Service Diagnosis........................................................... 135
1. Convenient Service Check Function...................................................137
2. Troubleshooting ..................................................................................139
2.1 Error Code Indication by Remote Controller ........................................139
2.2 Air conditioner does not run. ................................................................141
2.3 Air conditioner runs but does not get cooling (heating)........................143
2.4 When operation starts, safety breaker works.......................................145
2.5 Air conditioner makes big noise and vibration......................................147
2.6 Air does not humidified enough............................................................148
2.7 Indoor Unit PCB Fault ..........................................................................150
2.8 Peak-cut Control or Freeze-up Protection............................................151

SiBE04-624
iv Table of Contents
2.9 Fan Motor System (DC Motor) Fault....................................................153
2.10 Streamer Unit Fault..............................................................................155
2.11 Thermistor System Fault......................................................................157
2.12 Front Panel Open / Close Fault............................................................158
2.13 Humidity Sensor Fault..........................................................................159
2.14 Signal Transmission Error (Indoor Unit - Outdoor Unit) .......................160
2.15 Incompatible Power Supply between Indoor Unit and Outdoor Unit....162
2.16 Incomplete Setting for Hose Length.....................................................163
2.17 Outdoor Unit PCB Fault........................................................................164
2.18 OL Activation (Compressor Overload) .................................................165
2.19 Compressor Lock.................................................................................166
2.20 DC Fan Lock ........................................................................................167
2.21 Input Over Current Detection ...............................................................168
2.22 Four Way Valve Fault...........................................................................170
2.23 Discharge Pipe Temperature Control...................................................172
2.24 High Pressure Control in Cooling.........................................................173
2.25 Compressor Sensor System Fault .......................................................175
2.26 Damper Fault........................................................................................176
2.27 Position Sensor Fault...........................................................................177
2.28 DC Voltage / DC Current Sensor Fault ................................................179
2.29 Thermistor System Fault......................................................................180
2.30 Abnormal Temperature in Electrical Box..............................................182
2.31 Temperature Rise in Radiation Fin.......................................................184
2.32 Output Overcurrent...............................................................................186
2.33 Insufficient Gas.....................................................................................188
2.34 Over Voltage Protection / Low Voltage Protection...............................190
2.35 Outdoor Unit PCB Fault or Communication Circuit Fault.....................191
2.36 Signal Transmission Error on Outdoor Unit PCB.................................194
2.37 Fan Motor System Fault / Fan Lock.....................................................196
2.38 Heater Wire Fault.................................................................................197
2.39 Humidification Fan Outlet Thermistor Fault /
Abnormal Heater Temperature.............................................................199
2.40 Lights-out of Microcomputer Status Lamp............................................201
3. Check..................................................................................................202
3.1 Thermistor Resistance Check..............................................................202
3.2 Installation Condition Check.................................................................203
3.3 Outdoor Fan System Check (DC Motor)..............................................203
3.4 Power Supply Waveform Check...........................................................204
3.5 Capacitor Voltage Check......................................................................204
3.6 Main Circuit Electrolytic Capacitor Check ............................................205
3.7 Refrigerant System Check ...................................................................205
3.8 “Inverter Checker” Check.....................................................................206
3.9 Power Transistor Check.......................................................................207
3.10 Discharge Pressure Check...................................................................208
3.11 Electronic Expansion Valve Check.......................................................209
3.12 Indoor Unit PCB Output Check ............................................................210
3.13 Rotating Pulse Input on Outdoor Unit PCB Check...............................211
3.14 Humidity Sensor Check........................................................................212
3.15 Main Circuit Short Check......................................................................212
3.16 Four-way Valve Performance Check....................................................213
3.17 Solenoid Valve for Dehumidification Check .........................................214

SiBE04-624
Table of Contents v
Part 7 Removal Procedure ........................................................ 215
1. Indoor Unit...........................................................................................216
1.1 Removal of the Air Filters / Front panel................................................216
1.2 Removal of the Upper Panel................................................................222
1.3 Removal of the Front Grille ..................................................................225
1.4 Removal of the Assembly of the Open/Close Mechanism...................228
1.5 Removal of the Assembly of the Reduction Motor...............................230
1.6 Removal of the Electrical Box ..............................................................233
1.7 Removal of the PCB.............................................................................238
1.8 Removal of the Dehumidifying Solenoid Valve Coil.............................244
1.9 Removal of the Connecting Duct..........................................................245
1.10 Removal of the Drain Hose..................................................................247
1.11 Removal of the Swing Motor................................................................249
1.12 Removal of the Heat Exchanger ..........................................................251
1.13 Removal of the Propeller Fan / Fan Motor...........................................254
1.14 Removal of Horizontal Blades / Vertical Blades...................................257
1.15 Removal of the Streamer Unit..............................................................259
2. Outdoor Unit........................................................................................263
2.1 Removal of the Humidify Unit...............................................................263
2.2 Removal of the Heater Assembly / Humidifying Rotor
(Moisture Absorption Element) / Humidifying Rotor Motor...................266
2.3 Removal of the Humidifying Assembly.................................................270
2.4 Removal of the Moisture Absorption Fan Motor...................................273
2.5 Removal of the Propeller Fan / Fan Motor...........................................274
2.6 Removal of the Duct in Humidifier........................................................279
2.7 Removal of the Electrical Box ..............................................................280
2.8 Removal of the PCB.............................................................................284
2.9 Removal of the Sound Blanket.............................................................287
2.10 Remove the Thermistor Assembly.......................................................289
2.11 Removal of the Reactor / Partition Plate..............................................291
2.12 Removal of the Four Way Valve...........................................................292
2.13 Removal of the Expansion Valve .........................................................294
2.14 Removal of the Compressor.................................................................295
Part 8 Others ............................................................................. 297
1. Others .................................................................................................298
1.1 Test Run from the Remote Controller ..................................................298
1.2 Field Setting .........................................................................................299
Part 9 Appendix......................................................................... 301
1. Piping Diagrams..................................................................................302
1.1 Indoor Units..........................................................................................302
1.2 Outdoor Units.......................................................................................302
2. Wiring Diagrams..................................................................................303
2.1 Indoor Units..........................................................................................303
2.2 Outdoor Units.......................................................................................303

SiBE04-624
vi Table of Contents
Index ............................................................................................. i
Drawings & Flow Charts ............................................................... iii

SiBE04-624 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 an item for which caution must be exercised.
The pictogram shows the item to which attention must be paid.
This symbol indicates a prohibited action.
The prohibited item or action is shown inside or near the symbol.
This symbol indicates an action that must be taken, or an instruction.
The instruction is shown inside or near the symbol.
After the repair work is complete, be sure to conduct a test operation to ensure that the
equipment operates normally, and explain the cautions for operating the product to the
customer.
1.1.1 Caution in Repair
Warning
Be sure to disconnect the power cable plug from the plug socket before
disassembling the equipment for a repair.
Working on the equipment that is connected to a power supply can cause an
electrical shook.
If it is necessary to supply power to the equipment to conduct the repair or
inspecting the circuits, do not touch any electrically charged sections of the
equipment.
If the refrigerant gas discharges during the repair work, do not touch the
discharging refrigerant gas.
The refrigerant gas can cause frostbite.
When disconnecting the suction or discharge pipe of the compressor at the
welded section, release the refrigerant gas completely at a well-ventilated
place first.
If there is a gas remaining inside the compressor, the refrigerant gas or
refrigerating machine oil discharges when the pipe is disconnected, and it can
cause injury.
If the refrigerant gas leaks during the repair work, ventilate the area. The
refrigerant gas can generate toxic gases when it contacts flames.
The step-up capacitor supplies high-voltage electricity to the electrical
components of the outdoor unit.
Be sure to discharge the capacitor completely before conducting repair work.
A charged capacitor can cause an electrical shock.
Do not start or stop the air conditioner operation by plugging or unplugging the
power cable plug.
Plugging or unplugging the power cable plug to operate the equipment can
cause an electrical shock or fire.

Introduction SiBE04-624
viii
1.1.2 Cautions Regarding Products after Repair
Caution
Do not repair the electrical components with wet hands.
Working on the equipment with wet hands can cause an electrical shock.
Do not clean the air conditioner by splashing water.
Washing the unit with water can cause an electrical shock.
Be sure to provide the grounding when repairing the equipment in a humid or
wet place, to avoid electrical shocks.
Be sure to turn off the power switch and unplug the power cable when cleaning
the equipment.
The internal fan rotates at a high speed, and cause injury.
Do not tilt the unit when removing it.
The water inside the unit can spill and wet the furniture and floor.
Be sure to check that the refrigerating cycle section has cooled down
sufficiently before conducting repair work.
Working on the unit when the refrigerating cycle section is hot can cause burns.
Use the welder in a well-ventilated place.
Using the welder in an enclosed room can cause oxygen deficiency.
Warning
Be sure to use parts listed in the service parts list of the applicable model and
appropriate tools to conduct repair work. Never attempt to modify the
equipment.
The use of inappropriate parts or tools can cause an electrical shock,
excessive heat generation or fire.
When relocating the equipment, make sure that the new installation site has
sufficient strength to withstand the weight of the equipment.
If the installation site does not have sufficient strength and if the installation
work is not conducted securely, the equipment can fall and cause injury.
Be sure to install the product correctly by using the provided standard
installation frame.
Incorrect use of the installation frame and improper installation can cause the
equipment to fall, resulting in injury.
For integral units
only
Be sure to install the product securely in the installation frame mounted on a
window frame.
If the unit is not securely mounted, it can fall and cause injury.
For integral units
only

SiBE04-624 Introduction
ix
1.1.3 Inspection after Repair
Be sure to use an exclusive power circuit for the equipment, and follow the
technical standards related to the electrical equipment, the internal wiring
regulations and the instruction manual for installation when conducting
electrical work.
Insufficient power circuit capacity and improper electrical work can cause an
electrical shock or fire.
Be sure to use the specified cable to connect between the indoor and outdoor
units. Make the connections securely and route the cable properly so that there
is no force pulling the cable at the connection terminals.
Improper connections can cause excessive heat generation or fire.
When connecting the cable between the indoor and outdoor units, make sure
that the terminal cover does not lift off or dismount because of the cable.
If the cover is not mounted properly, the terminal connection section can cause
an electrical shock, excessive heat generation or fire.
Do not damage or modify the power cable.
Damaged or modified power cable can cause an electrical shock or fire.
Placing heavy items on the power cable, andheating or pulling the power cable
can damage the cable.
Do not mix air or gas other than the specified refrigerant (R-410A / R22) in the
refrigerant system.
If air enters the refrigerating system, an excessively high pressure results,
causing equipment damage and injury.
If the refrigerant gas leaks, be sure to locate the leak and repair it before
charging the refrigerant. After charging refrigerant, make sure that there is no
refrigerant leak.
If the leak cannot be located and the repair work must be stopped, be sure to
perform pump-down and close the service valve, to prevent the refrigerant gas
from leaking into the room. The refrigerant gas itself is harmless, but it can
generate toxic gases when it contacts flames, such as fan and other heaters,
stoves and ranges.
When replacing the coin battery in the remote controller, be sure to disposed
of the old battery to prevent children from swallowing it.
If a child swallows the coin battery, see a doctor immediately.
Warning
Caution
Installation of a leakage breaker is necessary in some cases depending on the
conditions of the installation site, to prevent electrical shocks.
Do not install the equipment in a place where there is a possibility of
combustible gas leaks.
If a combustible gas leaks and remains around the unit, it can cause a fire.
Be sure to install the packing and seal on the installation frame properly.
If the packing and seal are not installed properly, water can enter the room and
wet the furniture and floor.
For integral units
only
Warning
Check to make sure that the power cable plug is not dirty or loose, then insert
the plug into a power outlet all the way.
If the plug has dust or loose connection, it can cause an electrical shock or fire.
If the power cable and lead wires have scratches or deteriorated, be sure to
replace them.
Damaged cable and wires can cause an electrical shock, excessive heat
generation or fire.

Introduction SiBE04-624
x
1.1.4 Using Icons
Icons are used to attract the attention of the reader to specific information. The meaning of each
icon is described in the table below:
1.1.5 Using Icons List
Do not use a joined power cable or extension cable, or share the same power
outlet with other electrical appliances, since it can cause an electrical shock,
excessive heat generation or fire.
Warning
Caution
Check to see if the parts and wires are mounted and connected properly, and
if the connections at the soldered or crimped terminals are secure.
Improper installation and connections can cause excessive heat generation,
fire or an electrical shock.
If the installation platform or frame has corroded, replace it.
Corroded installation platform or frame can cause the unit to fall, resulting in
injury.
Check the grounding, and repair it if the equipment is not properly grounded.
Improper grounding can cause an electrical shock.
Be sure to measure the insulation resistance after the repair, and make sure
that the resistance is 1 Mohm or higher.
Faulty insulation can cause an electrical shock.
Be sure to check the drainage of the indoor unit after the repair.
Faulty drainage can cause the water to enter the room and wet the furniture
and floor.
Icon Type of
Information Description
Note:
Note A “note” provides information that is not indispensable, but may
nevertheless be valuable to the reader, such as tips and tricks.
Caution
Caution A “caution” isusedwhenthereis 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.

SiBE04-624
List of Functions 1
Part 1
List of Functions
1. Functions.................................................................................................2

Functions SiBE04-624
2List of Functions
1. Functions
Category Functions
FTXR28/42/50EV1B RXR28/42/50EV1B
Category Functions
FTXR28/42/50EV1B RXR28/42/50EV1B
Basic
Function
Inverter (with Inverter Power Control) {
Health &
Clean
Air Purifying Filter with Bacteriostatic,
Virustatic Functions —
Operation Limit for Cooling (°CDB) 21
~43
Operation Limit for Heating (°CWB) –20
~24 Photocatalytic Deodorizing Filter —
PAM Control {Air Purifying Filter with Photocatalytic
Deodorizing Function —
Compressor
Oval Scroll Compressor — Titanium Apatite Photocatalytic
Air Purifying Filter {
Swing Compressor {
Rotary Compressor — Air Intake Filter {
Reluctance DC Motor {Flash Streamer Air Purifying {
Comfortable
Airflow
Power-Airflow Flap — Mold Proof Air Filter {
Power-Airflow Dual Flaps {Wipe-clean Flat Panel {
Power-Airflow Diffuser — Washable Upper Grille {
Wide-Angle Louvers {Filter Cleaning Indicator (Remote Controller) {
Vertical Auto-Swing (Up and Down) {Mold Proof Operation {
Horizontal Auto-Swing (Right and Left) {Mold Shock Operation {
3-D Airflow {Mold Proof Stick {
Comfort Airflow Mode {Comfort Sleep Operation {
Cooling Breeze Operation {Fresh Air Supply Ventilation {
3-Step Airflow (H/P Only) — Home Leave Ventilation {
Comfort
Control
Auto Fan Speed {Heating Dry Operation —
Indoor Unit Quiet Operation {Good-Sleep Cooling Operation —
Night Quiet Mode (Automatic) —
Timer
24-Hour ON/OFF Timer {
Outdoor Unit Quiet Operation (Manual) — Count Up-down ON/OFF Timer OFF
only
Intelligent Eye — Night Set Mode {
Quick Warming Function {
Worry Free
“Reliability &
Durability”
Quiet Control {
Hot-Start Function {Auto-Restart (after Power Failure) {
Automatic Defrosting {Self-Diagnosis (Remote Controller) Display {
Operation
Automatic Operation {Wiring Error Check —
URURU Humidifying Operation {Anticorrosion Treatment of Outdoor Heat
Exchanger {
Moisturizing Operation {
SARARA Drying Operation {
Flexibility
Multi-Split / Split Compatible Indoor Unit —
Dry Cooling Operation {
Programme Dry Function — Flexible Voltage Correspondence —
Fan Only — High Ceiling Application —
Air Purifying Operation {Chargeless {
Lifestyle
Convenience
New Powerful Operation (Non-Inverter) — Either Side Drain (Right or Left) {
Inverter Powerful Operation {Power Selection —
Dry Keep JP
set
Remote
Control
5-Rooms Centralized Controller (Option) {
Priority-Room Setting — Remote Control Adaptor
(Normal Open-Pulse Contact) (Option) {
Cooling / Heating Mode Lock —
Home Leave Operation — Remote Control Adaptor
(Normal Open Contact) (Option) {
ECONO Mode —
Indoor Unit ON/OFF Switch {DIII-NET Compatible (Adaptor) (Option) {
Multi-colored Indicator {Remote
Controller Wireless {
Monitor Brightness Setting {Wired —
Signal Reception Indicator {
Temperature & Humidity Level Information
Display (Remote Controller) {
Childproof Lock {
Temperature Display —
Another Room Operation —
Note: {: Holding Functions
— : No Functions

SiBE04-624
Specifications 3
Part 2
Specifications
1. Specifications..........................................................................................4

Specifications SiBE04-624
4Room Air Conditioners E-Series
1. Specifications 50Hz 220-230-240V
Note: The data are based on the conditions shown in the table below.
Model Indoor Units FTXR28EV1B FTXR42EV1B
Outdoor Units RXR28EV1B RXR42EV1B
Cooling Heating Cooling Heating
Capacity
Rated (Min.~Max.)
kW 2.8 (1.55~3.60) 3.6 (1.30~5.00) 4.2 (1.55~4.60) 5.1 (1.30~5.60)
Btu/h 9,600 (5,300~12,300) 12,300 (4,400~16,400) 14,300 (5,300~15,700) 17,400 (4,400~19,100)
kcal/h 2,410 (1,330~3,100) 3,100 (1,120~4,130) 3,610 (1,330~3,960) 4,390 (1,120~4,820)
Moisture Removal L/h 1.6 — 2.3 —
Running Current (Rated) A 3.2-3.1-3.0 3.9-3.8-3.7 5.3-5.2-5.1 5.9-5.8-5.7
Power Consumption
Rated (Min.~Max.) W 560 (250~800) 700 (200~1,410) 1,050 (260~1,320) 1,180 (220~1,600)
Power Factor % 79.5-78.5-77.8 81.6-80.1-78.8 90.1-87.8-85.8 90.9-88.5-86.3
COP
Rated (Min.~Max.) W/W 5.00 (6.20~4.50) 5.14 (5.91~3.55) 4.00 (5.96~3.48) 4.32 (5.91~3.50)
Piping
Connections
Liquid mm φ 6.4 φ 6.4
Gas mm φ9.5 φ9.5
Drain mm φ18.0 φ18.0
Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes
Max. Interunit Piping Length m 10 10
Max. Interunit Height Difference m 8 8
Amount of Additional Charge
of Refrigerant g/m Chargeless Chargeless
Indoor Unit FTXR28EV1B FTXR42EV1B
Front Panel Color White White
Air Flow Rate m³/min
(cfm)
H 11.1 (392) 12.4 (438) 12.4 (438) 12.9 (456)
M 8.8 (311) 9.8 (346) 9.6 (339) 10.2 (360)
L 6.5 (230) 7.3 (258) 6.8 (240) 7.7 (272)
SL 5.7 (201) 6.5 (230) 6.0 (212) 6.8 (240)
Fan Type Cross Flow Fan (With Saw Edge) Cross Flow Fan (With Saw Edge) Motor Output W 57 57
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 0.15-0.14-0.13 0.15-0.14-0.13 0.17-0.16-0.15 0.17-0.16-0.15
Power Consumption (Rated) W 30-30-30 30-30-30 35-35-35 35-35-35
Power Factor % 90.9-93.2-96.2 90.9-93.2-96.2 93.6-95.1-97.2 93.6-95.1-97.2
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H×W×D) mm 305×890×209 305×890×209
Packaged Dimensions (H×W×D) mm 280×956×378 280×956×378
Weight kg 14 14
Gross Weight kg 20 20
Operation
Sound H/M/L/SL dBA 39/33/26/23 41/35/28/25 42/35/27/24 42/36/29/26
Sound Power H dBA 55 57 58 58
Outdoor Unit RXR28EV1B RXR42EV1B
Casing Color Ivory White Ivory White
Compressor Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type Model 2YC36CXD 2YC36CXD
Motor Output W 1,100 1,100
Refrigerant
Oil Model FVC50K FVC50K
Charge L 0.4 0.4
Refrigerant Model R-410A R-410A
Charge kg 1.4 1.4
Air Flow Rate
(HH) m³/min 33.8 31.4 36.2 31.9
cfm 800 750 850 760
Fan Type Propeller Propeller
Motor Output W 60 60
Running Current (Rated) A 3.05-2.96-2.87 3.75-3.66-3.57 5.13-5.04-4.95 5.73-5.64-5.55
Power Consumption (Rated) W 530-530-530 670-670-670 1,015-1,015-1,015 1,145-1,145-1,145
Power Factor % 79.0-77.8-76.9 81.2-79.6-78.2 89.9-87.6-85.4 90.8-88.3-86.0
Starting Current A 3.9 5.9
Dimensions (H×W×D) mm 693×795×285 693×795×285
Packaged Dimensions (H×W×D) mm 736×935×410 736×935×410
Weight kg 48 48
Gross Weight kg 55 55
Operation
Sound H dBA 46 46 48 48
Sound Power H dBA 60 60 62 62
Drawing No. 3D054159A 3D054160A
Conversion Formulae
kcal/h=kW×860
Btu/h=kW×3414
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 7.5m

SiBE04-624 Specifications
Room Air Conditioners E-Series 5
50Hz 220-230-240V
Note: The data are based on the conditions shown in the table below.
Model Indoor Units FTXR50EV1B
Outdoor Units RXR50EV1B
Cooling Heating
Capacity
Rated (Min.~Max.)
kW 5.0 (1.55~5.50) 6.0 (1.30~6.20)
Btu/h 17,100 (5,300~18,800) 20,500 (4,400~21,200)
kcal/h 4,300 (1,330~47,300) 5,160 (1,120~5,330)
Moisture Removal L/h 2.8 —
Running Current (Rated) A 7.2-7.1-7.0 7.4-7.3-7.2
Power Consumption
Rated (Min.~Max.) W 1,460 (260~1,800) 1,510 (230~1,770)
Power Factor % 92.2-89.4-86.9 92.8-89.9-87.4
COP
Rated (Min.~Max.) W/W 3.42 (5.96~3.06) 3.97 (5.65~3.50)
Piping
Connections
Liquid mm φ 6.4
Gas mm φ9.5
Drain mm φ18.0
Heat Insulation Both Liquid and Gas Pipes
Max. Interunit Piping Length m 10
Max. Interunit Height Difference m 8
Amount of Additional Charge
of Refrigerant g/m Chargeless
Indoor Unit FTXR50EV1B
Front Panel Color White
Air Flow Rate m³/min
(cfm)
H 13.3 (470) 14.0 (494)
M 10.3 (364) 11.1 (392)
L 7.3 (258) 8.3 (293)
SL 6.5 (230) 7.3 (258)
Fan Type Cross Flow Fan (With Saw Edge) Motor Output W 57
Speed Steps 5 Steps, Quiet, Auto
Air Direction Control Right, Left, Horizontal, Downward
Air Filter Removable / Washable / Mildew Proof
Running Current (Rated) A 0.20-0.19-0.18 0.20-0.19-0.18
Power Consumption (Rated) W 40-40-40 40-40-40
Power Factor % 90.9-91.5-92.6 90.9-91.5-92.6
Temperature Control Microcomputer Control
Dimensions (H×W×D) mm 305×890×209
Packaged Dimensions (H×W×D) mm 280×956×378
Weight kg 14
Gross Weight kg 20
Operation
Sound H/M/L/SL dBA 44/37/29/26 44/38/31/28
Sound Power H dBA 60 60
Outdoor Unit RXR50EV1B
Casing Color Ivory White
Compressor Type Hermetically Sealed Swing Type Model 2YC36CXD
Motor Output W 1,100
Refrigerant
Oil Model FVC50K
Charge L 0.4
Refrigerant Model R-410A
Charge kg 1.4
Air Flow Rate
(HH) m³/min 36.2 34.3
cfm 850 810
Fan Type Propeller
Motor Output W 60
Running Current (Rated) A 7.0-6.91-6.82 7.2-7.11-7.02
Power Consumption (Rated) W 1,420-1,420-1,420 1,470-1,470-1,470
Power Factor % 92.2-89.3-86.8 92.8-89.9-87.3
Starting Current A 7.4
Dimensions (H×W×D) mm 693×795×285
Packaged Dimensions (H×W×D) mm 736×935×410
Weight kg 48
Gross Weight kg 55
Operation
Sound HdBA 48 50
Sound Power H dBA 62 64
Drawing No. 3D054161A
Conversion Formulae
kcal/h=kW×860
Btu/h=kW×3414
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 7.5m

Specifications SiBE04-624
6Room Air Conditioners E-Series

SiBE04-624
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...........................................................................................10

Printed Circuit Board Connector Wiring Diagram SiBE04-624
8Printed Circuit Board Connector Wiring Diagram
1. Printed Circuit Board Connector Wiring Diagram
1.1 Indoor Unit
Connectors A1P (Control PCB)
A2P (Display PCB)
A3P (Signal Receiver/Transmitter PCB)
A4P (Humidity Sensor PCB)
A5P (High Voltage Unit PCB)
Note: Other designations
A1P (Control PCB)
A2P (Display PCB)
A4P (Humidity Sensor PCB)
1) S1 Connector for fan motor
2) S21 Connector for centralized control (HA)
3) S32 Connector for heat exchanger thermistor (R1T)
4) S41, S51 Connector for swing motor (horizontal, vertical)
5) S43 Connector for solenoid valve
6) S46 Connector for display PCB
7) S48 Connector for humidity sensor PCB
8) S51 Connector for reduction motor, limit switch (front panel)
9) S52 Connector for streamer unit
1) S56 Connector for control PCB
2) S57 Connector for signal receiver / transmitter PCB
3) S63 (H1P) Connector for LED PCB (multi monitor)
1) S58 Connector for display PCB
1) CN1 Connector for control PCB
1) S401 Connector for control PCB
2) S402 Connector for limit switch for streamer
3) S403 Connector for streamer
1) V1 Varistor
2) FU1 Fuse (3.15A)
3) LED A LED for service monitor (green)
4) JB
JC Fan speed setting when compressor is OFF on thermostat Power failure recovery function (auto-restart)
*Refer to page 300 for detail.
1) JA Address setting jumper
2) SW1 Forced operation ON / OFF switch
3) LED2 LED for timer (yellow)
4) LED3 LED for moisture operation (green)
1) R2T Room temperature thermistor

SiBE04-624 Printed Circuit Board Connector Wiring Diagram
Printed Circuit Board Connector Wiring Diagram 9
PCB Detail PCB(1): Control PCB
FU1V1JBJC
S32
S48
S21
S43
LED A
S46
S52 S41 S1S51 (R5944)
PCB(2): Display PCB PCB(3): Signal Receiver / Transmitter PCB
PCB(4): Humidity sensor PCB PCB(5): High Voltage Unit PCB
JA S56
SW1
LED2
LED3
S57
S63 (R5945)
S58
(R5946)
R2T
CN1
Humidity
sensor
(R5947)
S403
S401
S402
(R5948)