Daikin FTX50GV1B User manual

Service
Manual
[Applied Models]
zInverter Pair : Heat Pump
Inverter Pair
Wall Mounted Type G-Series
SiBE041029EB

SiBE041029EB
iTable of Contents
Inverter Pair
Wall Mounted Type
G-Series
zHeat Pump
Indoor Unit
FTX50GV1B
FTX60GV1B
FTX71GV1B
Outdoor Unit
RX50G2V1B RX50G3V1B
RX60G2V1B RX60G3V1B
RX71GV1B RX71GV1B9 RX71GV1B8

SiBE041029EB
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 .................................................................... 4
1. Specifications ..........................................................................................5
Part 3 Printed Circuit Board Connector Wiring Diagram ............. 9
1. Indoor Unit.............................................................................................10
2. Outdoor Unit..........................................................................................12
2.1 RX50/60G2V1B, 71 Class......................................................................12
2.2 RX50/60G3V1B......................................................................................14
Part 4 Function and Control........................................................ 16
1. Main Functions......................................................................................17
1.1 Temperature Control ..............................................................................17
1.2 Frequency Principle................................................................................17
1.3 Airflow Direction Control.........................................................................19
1.4 Fan Speed Control for Indoor Unit .........................................................20
1.5 Program Dry Operation ..........................................................................21
1.6 Automatic Operation...............................................................................22
1.7 Thermostat Control.................................................................................23
1.8 NIGHT SET Mode ..................................................................................24
1.9 HOME LEAVE Operation .......................................................................24
1.10 INTELLIGENT EYE Operation ...............................................................26
1.11 Inverter POWERFUL Operation .............................................................27
1.12 Clock Setting ..........................................................................................27
1.13 Other Functions......................................................................................28
2. Function of Thermistor ..........................................................................29
3. Control Specification .............................................................................30
3.1 Mode Hierarchy ......................................................................................30
3.2 Frequency Control..................................................................................31
3.3 Controls at Mode Changing / Start-up....................................................33
3.4 Discharge Pipe Temperature Control.....................................................35
3.5 Input Current Control..............................................................................36
3.6 Freeze-up Protection Control .................................................................37
3.7 Heating Peak-cut Control .......................................................................37
3.8 Outdoor Fan Control...............................................................................38
3.9 Liquid Compression Protection Function................................................38
3.10 Defrost Control .......................................................................................39
3.11 Electronic Expansion Valve Control .......................................................40
3.12 Malfunctions ...........................................................................................43

SiBE041029EB
iii Table of Contents
Part 5 Remote Controller ............................................................ 44
1. Remote Controller .................................................................................45
Part 6 Service Diagnosis............................................................. 47
1. Troubleshooting with LED .....................................................................49
1.1 Indoor Unit..............................................................................................49
1.2 Outdoor Unit ...........................................................................................49
2. Problem Symptoms and Measures .......................................................50
3. Service Check Function ........................................................................51
4. Troubleshooting ....................................................................................54
4.1 Error Codes and Description ..................................................................54
4.2 Indoor Unit PCB Abnormality .................................................................55
4.3 Freeze-up Protection Control / Heating Peak-cut Control ......................56
4.4 Fan Motor (DC Motor) or Related Abnormality.......................................57
4.5 Thermistor or Related Abnormality (Indoor Unit)....................................59
4.6 Refrigerant Shortage ..............................................................................60
4.7 Low-voltage Detection or Over-voltage Detection..................................62
4.8 Signal Transmission Error (Between Indoor Unit and Outdoor Unit)......64
4.9 Signal Transmission Error on Outdoor Unit PCB
(RX50/60G2V1B, 71 Class Only) ...........................................................66
4.10 Unspecified Voltage (Between Indoor Unit and Outdoor Unit) ...............67
4.11 Outdoor Unit PCB Abnormality...............................................................68
4.12 OL Activation (Compressor Overload) ...................................................70
4.13 Compressor Lock ...................................................................................72
4.14 DC Fan Lock ..........................................................................................73
4.15 Input Overcurrent Detection ...................................................................74
4.16 Four Way Valve Abnormality..................................................................75
4.17 Discharge Pipe Temperature Control.....................................................77
4.18 High Pressure Control in Cooling ...........................................................78
4.19 Compressor System Sensor Abnormality ..............................................79
4.20 Position Sensor Abnormality ..................................................................81
4.21 CT or Related Abnormality (RX50/60G2V1B, 71 Class Only)................84
4.22 Thermistor or Related Abnormality (Outdoor Unit).................................86
4.23 Electrical Box Temperature Rise............................................................88
4.24 Radiation Fin Temperature Rise ............................................................89
4.25 Output Overcurrent Detection ................................................................91
5. Check ....................................................................................................93
5.1 Thermistor Resistance Check ................................................................93
5.2 Fan Motor Connector Output Check ......................................................94
5.3 Power Supply Waveforms Check...........................................................94
5.4 Electronic Expansion Valve Check.........................................................94
5.5 Four Way Valve Performance Check .....................................................95
5.6 Inverter Unit Refrigerant System Check.................................................95
5.7 Inverter Analyzer Check .........................................................................96
5.8 Rotation Pulse Check on the Outdoor Unit PCB ....................................97
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 Capacitor Voltage Check......................................................................100

SiBE041029EB
Table of Contents iv
5.14 Power Module Check ...........................................................................100
Part 7 Trial Operation and Field Settings................................. 102
1. Pump Down Operation........................................................................103
2. Forced Cooling Operation ...................................................................104
3. Trial Operation ....................................................................................105
4. Field Settings ......................................................................................106
4.1 When 2 Units are installed in 1 Room ..................................................106
4.2 Facility Setting (Cooling at Low Outdoor Temperature) .......................107
4.3 Jumper and Switch Settings.................................................................108
5. Silicon Grease on Power Transistor / Diode Bridge............................109
Part 8 Appendix......................................................................... 110
1. Piping Diagrams..................................................................................111
1.1 Indoor Unit............................................................................................111
1.2 Outdoor Unit .........................................................................................111
2. Wiring Diagrams..................................................................................113
2.1 Indoor Unit............................................................................................113
2.2 Outdoor Unit .........................................................................................113

Safety Cautions SiBE041029EB
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.

SiBE041029EB 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 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.
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.

Safety Cautions SiBE041029EB
vii
1.2 Warnings and Cautions Regarding Safety of Users
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.
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.

SiBE041029EB Safety Cautions
viii
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
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.

Safety Cautions SiBE041029EB
ix
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.
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
Caution

SiBE041029EB 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, loose 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.

SiBE041029EB
1List of Functions
Part 1
List of Functions
1. Functions.................................................................................................2

SiBE041029EB Functions
List of Functions 2
1. Functions
Category Functions
FTX50/60/71GV1B RX50/60G2V1B
Category Functions
FTX50/60/71GV1B RX50/60G2V1B
Basic Function Inverter (with inverter power control) zHealth & Clean Air-purifying filter —
Operation limit for cooling (°CDB) –10
~46 Photocatalytic deodorizing filter —
Operation limit for heating (°CWB) –15
~18
Air-purifying filter with photocatalytic
deodorizing function —
PAM control zTitanium apatite photocatalytic air-purifying
filter z
Compressor Oval scroll compressor —
Swing compressor zAir filter (prefilter) z
Rotary compressor — Wipe-clean flat panel z
Reluctance DC motor zWashable grille —
Comfortable
Airflow
Power-airflow flap — MOLD PROOF operation —
Power-airflow dual flaps zHeating dry operation —
Power-airflow diffuser — Good-sleep cooling operation —
Wide-angle louvers zTimer WEEKLY TIMER operation —
Vertical auto-swing (up and down) z24-hour ON/OFF TIMER z
Horizontal auto-swing (right and left) zNIGHT SET mode z
3-D airflow zWorry Free
(Reliability &
Durability)
Auto-restart (after power failure) z
COMFORT AIRFLOW operation — Self-diagnosis (digital, LED) display z
Comfort
Control
Auto fan speed zWiring error check function —
Indoor unit quiet operation zAnti-corrosion treatment of outdoor heat
exchanger z
NIGHT QUIET mode (automatic) —
OUTDOOR UNIT QUIET operation (manual) zFlexibility Multi-split / split type compatible indoor unit —
INTELLIGENT EYE operation zFlexible power supply correspondence —
Quick warming function
(preheating operation) zHigh ceiling application —
Chargeless 10 m
Hot-start function zEither side drain (right or left) z
Automatic defrosting zPower selection —
Operation Automatic operation zRemote
Control
5-room centralized controller (option) z
Program dry operation zRemote control adaptor
(normal open pulse contact) (option) z
Fan only z
Lifestyle
Convenience
New POWERFUL operation (non-inverter) — Remote control adaptor
(normal open contact) (option) z
Inverter POWERFUL operation z
Priority-room setting — DIII-NET compatible (adaptor) (option)
z
COOL / HEAT mode lock — Remote
Controller
Wireless z
HOME LEAVE operation zWired (option) z
ECONO operation —
Indoor unit ON/OFF button z
Signal receiving sign z
R/C with back light —
Temperature display —
Note: z: Available
— : Not available

Functions SiBE041029EB
3List of Functions
Category Functions
FTX50/60/71GV1B RX50/60G3V1B RX71GV1B RX71GV1B9 RX71GV1B8
Category Functions
FTX50/60/71GV1B RX50/60G3V1B RX71GV1B RX71GV1B9 RX71GV1B8
Basic Function Inverter (with inverter power control) zHealth & Clean Air-purifying filter —
Operation limit for cooling (°CDB)
–10
~46
★Photocatalytic deodorizing filter —
Operation limit for heating (°CWB) –15
~18
Air-purifying filter with photocatalytic
deodorizing function —
PAM control zTitanium apatite photocatalytic
air-purifying filter z
Compressor Oval scroll compressor —
Swing compressor zAir filter (prefilter) z
Rotary compressor — Wipe-clean flat panel z
Reluctance DC motor zWashable grille —
Comfortable
Airflow
Power-airflow flap — MOLD PROOF operation —
Power-airflow dual flaps zHeating dry operation —
Power-airflow diffuser — Good-sleep cooling operation —
Wide-angle louvers zTimer WEEKLY TIMER operation —
Vertical auto-swing (up and down) z24-hour ON/OFF TIMER z
Horizontal auto-swing (right and left) zNIGHT SET mode z
3-D airflow zWorry Free
(Reliability &
Durability)
Auto-restart (after power failure) z
COMFORT AIRFLOW operation — Self-diagnosis (digital, LED) display z
Comfort
Control
Auto fan speed zWiring error check function —
Indoor unit quiet operation zAnti-corrosion treatment of outdoor
heat exchanger z
NIGHT QUIET mode (automatic) —
OUTDOOR UNIT QUIET operation
(manual) zFlexibility Multi-split / split type compatible indoor
unit —
INTELLIGENT EYE operation zFlexible power supply correspondence —
Quick warming function
(preheating operation)
zHigh ceiling application —
Chargeless 10 m
Hot-start function zEither side drain (right or left) z
Automatic defrosting zPower selection —
Operation Automatic operation zRemote
Control
5-room centralized controller (option) z
Program dry operation zRemote control adaptor
(normal open pulse contact) (option) z
Fan only z
Lifestyle
Convenience
New POWERFUL operation
(non-inverter) —Remote control adaptor
(normal open contact) (option) z
Inverter POWERFUL operation z DIII-NET compatible (adaptor) (option)
z
Priority-room setting — Remote
Controller
Wireless z
COOL / HEAT mode lock — Wired (option) z
HOME LEAVE operation z
ECONO operation —
Indoor unit ON/OFF button z
Signal receiving sign z
R/C with back light —
Temperature display —
Note: z: Available
— : Not available
★: Lower limit can be extended by turning switch or
cutting jumper. (facility use only)
Refer to page 107 for detail.

SiBE041029EB
Specifications 4
Part 2
Specifications
1. Specifications ..........................................................................................5

Specifications SiBE041029EB
5Specifications
1. Specifications
50 Hz, 220 - 230 - 240 V
Note: The data are based on the conditions shown in the table below.
Model
Indoor Unit FTX50GV1B FTX60GV1B
Outdoor Unit RX50G2V1B RX60G2V1B
Cooling Heating Cooling Heating
Capacity Rated
(Min. ~ Max.)
kW 5.0 (1.7 ~ 6.0) 5.8 (1.7 ~ 7.7) 6.0 (1.7 ~ 6.7) 7.0 (1.7 ~ 8.0)
Btu/h 17,100 (5,800 ~ 20,500) 19,800 (5,800 ~ 26,300) 20,500 (5,800 ~ 22,900) 23,900 (5,800 ~ 27,300)
kcal/h 4,300 (1,460 ~ 5,160) 4,990 (1,460 ~ 6,620) 5,160 (1,460 ~ 5,760) 6,020 (1,460 ~ 6,880)
Running Current Rated A 7.2 - 6.9 - 6.6 7.4 - 7.1 - 6.8 9.2 - 8.8 - 8.4 9.4 - 9.0 - 8.6
Power Consumption Rated
(Min. ~ Max.) W 1,550 (440 ~ 2,080) 1,600 (400 ~ 2,530) 1,990 (440 ~ 2,400) 2,040 (400 ~ 2,810)
Power Factor % 97.9 - 97.7 - 97.9 98.3 - 98.0 - 98.0 98.3 - 98.3 - 98.7 98.6 - 98.6 - 98.8
COP Rated
(Min. ~ Max.) W/W 3.23 (3.86 ~ 2.88) 3.63 (4.25 ~ 3.04) 3.02 (3.86 ~ 2.79) 3.43 (4.25 ~ 2.85)
Piping
Connections
Liquid mm φ 6.4 φ 6.4
Gas mm φ 12.7 φ 12.7
Drain mm φ 18.0 φ 18.0
Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes
Max. Interunit Piping Length m 30 30
Max. Interunit Height Difference m 20 20
Chargeless m 10 10
Amount of Additional Charge of
Refrigerant g/m 20 20
Indoor Unit FTX50GV1B FTX60GV1B
Front Panel Color White White
Airflow Rate
H
m³/min
(cfm)
14.7 (519) 16.1 (568) 16.2 (572) 17.4 (614)
M 12.4 (438) 13.9 (491) 13.6 (480) 15.1 (533)
L 10.3 (364) 11.5 (406) 11.4 (403) 12.7 (448)
SL 9.5 (335) 10.2 (360) 10.2 (360) 11.4 (403)
Fan
Type Cross Flow Fan Cross Flow Fan
Motor Output W 43 43
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 0.16 - 0.15 - 0.15 0.17 - 0.16 - 0.16 0.19 - 0.18 - 0.17 0.21 - 0.20 - 0.19
Power Consumption (Rated) W 34 36 40 45
Power Factor % 96.6 - 98.6 - 94.4 96.3 - 97.8 - 93.8 95.7 - 96.6 - 98.0 97.4 - 97.8 - 98.7
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H × W × D) mm 290 × 1,050 × 238 290 × 1,050 × 238
Packaged Dimensions (H × W × D) mm 337 × 1,147 × 366 337 × 1,147 × 366
Weight (Mass) kg 12 12
Gross Weight (Gross Mass) kg 17 17
Sound
Pressure
Level H / M / L / SL dB(A) 43 / 39 / 34 / 31 42 / 38 / 33 / 30 45 / 41 / 36 / 33 44 / 40 / 35 / 32
Sound Power Level dB 59 58 61 60
Outdoor Unit RX50G2V1B RX60G2V1B
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 1.50 1.50
Airflow Rate
HH m³/min
(cfm)
50.9 (1,797) — 54.2 (1,914) —
H 48.9 (1,727) 45.0 (1,589) 50.9 (1,797) 46.3 (1,635)
SL 41.7 (1,472) 42.4 (1,497)
Fan Type Propeller Propeller
Motor Output W 53 53
Running Current (Rated) A 7.04 - 6.75 - 6.45 7.23 - 6.94 - 6.64 9.01 - 8.62 - 8.23 9.19 - 8.80 - 8.41
Power Consumption (Rated) W 1,516 - 1,516 - 1,516 1,564 - 1,564 - 1,564 1,950 - 1,950 - 1,950 1,995 - 1,995 - 1,995
Power Factor % 97.9 - 97.6 - 97.9 98.3 - 98.0 - 98.1 98.4 - 98.4 - 98.7 98.7 - 98.6 - 98.8
Starting Current A 7.4 9.4
Dimensions (H × W × D) mm 735 × 825 × 300 735 × 825 × 300
Packaged Dimensions (H × W × D) mm 797 × 960 × 390 797 × 960 × 390
Weight (Mass) kg 48 48
Gross Weight (Gross Mass) kg 53 53
Sound
Pressure
Level H / SL dB(A) 47 / 44 48 / 45 49 / 46 49 / 46
Sound Power
Level HdB61626363
Drawing No. 3D066639A 3D066640A
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

SiBE041029EB Specifications
Specifications 6
50 Hz, 220 - 230 - 240 V
Note: The data are based on the conditions shown in the table below.
Model
Indoor Unit FTX71GV1B
Outdoor Unit RX71GV1B
Cooling Heating
Capacity Rated
(Min. ~ Max.)
kW 7.1 (2.3 ~ 8.5) 8.2 (2.3 ~ 10.2)
Btu/h 24,200 (7,800 ~ 29,000) 28,000 (7,800 ~ 34,800)
kcal/h 6,110 (1,980 ~ 7,310) 7,050 (1,980 ~ 8,770)
Running Current Rated A 10.8 - 10.4 - 9.9 11.7 - 11.2 - 10.7
Power Consumption Rated
(Min. ~ Max.) W 2,350 (570 ~ 3,200) 2,550 (520 ~ 3,820)
Power Factor % 98.9 - 98.2 - 98.9 99.1 - 99.0 - 99.3
COP Rated
(Min. ~ Max.) W/W 3.02 (4.04 ~ 2.66) 3.22 (4.42 ~ 2.67)
Piping
Connections
Liquid mm φ 6.4
Gas mm φ15.9
Drain mm φ 18.0
Heat Insulation Both Liquid and Gas Pipes
Max. Interunit Piping Length m 30
Max. Interunit Height Difference m 20
Chargeless m 10
Amount of Additional Charge of
Refrigerant g/m 20
Indoor Unit FTX71GV1B
Front Panel Color White
Airflow Rate
H
m³/min
(cfm)
17.4 (614) 19.7 (696)
M 14.6 (516) 16.9 (597)
L 11.6 (410) 14.3 (505)
SL 10.6 (374) 12.7 (448)
Fan
Type Cross Flow Fan
Motor Output W 43
Speed Steps 5 Steps, Quiet, Auto
Air Direction Control Right, Left, Horizontal, Downward
Air Filter Removable / Washable / Mildew Proof
Running Current (Rated) A 0.21 - 0.20 - 0.19 0.28 - 0.27 - 0.26
Power Consumption (Rated) W 45 60
Power Factor % 97.4 - 97.8 - 98.7 97.4 - 96.6 - 96.2
Temperature Control Microcomputer Control
Dimensions (H × W × D) mm 290 × 1,050 × 238
Packaged Dimensions (H × W × D) mm 337 × 1,147 × 366
Weight (Mass) kg 12
Gross Weight (Gross Mass) kg 17
Sound
Pressure
Level H / M / L / SL dB(A) 46 / 42 / 37 / 34 46 / 42 / 37 / 34
Sound Power Level dB 62 62
Outdoor Unit RX71GV1B
Casing Color Ivory White
Compressor
Type Hermetically Sealed Swing Type
Model 2YC63BXD
Motor Output W 1,920
Refrigerant
Oil
Type FVC50K
Charge L 0.75
Refrigerant Type R-410A
Charge kg 2.30
Airflow Rate
HH m³/min
(cfm)
57.1 (2,016) —
H 54.5 (1,924) 46.0 (1,624)
SL 46.0 (1,624) 46.0 (1,624)
Fan Type Propeller
Motor Output W 66
Running Current (Rated) A 10.59 - 10.20 - 9.71 11.42 - 10.93 - 10.44
Power Consumption (Rated) W 2,305 - 2,305 - 2,305 2,490 - 2,490 - 2,490
Power Factor % 98.9 - 98.3 - 98.9 99.1 - 99.0 - 99.4
Starting Current A 11.7
Dimensions (H × W × D) mm 770 × 900 × 320
Packaged Dimensions (H × W × D) mm 900 × 925 × 390
Weight (Mass) kg 71
Gross Weight (Gross Mass) kg 79
Sound
Pressure
Level H / SL dB(A) 52 / 49 52 / 49
Sound Power
Level HdB 66 66
Drawing No. 3D066641
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 SiBE041029EB
7Specifications
50 Hz, 220 - 230 - 240 V
Note: The data are based on the conditions shown in the table below.
Model
Indoor Unit FTX50GV1B FTX60GV1B
Outdoor Unit RX50G3V1B RX60G3V1B
Cooling Heating Cooling Heating
Capacity Rated
(Min. ~ Max.)
kW 5.0 (1.7 ~ 6.0) 5.8 (1.7 ~ 7.7) 6.0 (1.7 ~ 6.7) 7.0 (1.7 ~ 8.0)
Btu/h 17,100 (5,800 ~ 20,500) 19,800 (5,800 ~ 26,300) 20,500 (5,800 ~ 22,900) 23,900 (5,800 ~ 27,300)
kcal/h 4,300 (1,460 ~ 5,160) 4,990 (1,460 ~ 6,620) 5,160 (1,460 ~ 5,760) 6,020 (1,460 ~ 6,880)
Running Current Rated A 7.2 - 6.9 - 6.6 7.4 - 7.1 - 6.8 9.2 - 8.8 - 8.4 9.4 - 9.0 - 8.6
Power Consumption Rated
(Min. ~ Max.) W 1,550 (440 ~ 2,080) 1,600 (400 ~ 2,530) 1,990 (440 ~ 2,400) 2,040 (400 ~ 2,810)
Power Factor % 97.9 - 97.7 - 97.9 98.3 - 98.0 - 98.0 98.3 - 98.3 - 98.7 98.6 - 98.6 - 98.8
COP Rated
(Min. ~ Max.) W/W 3.23 (3.86 ~ 2.88) 3.63 (4.25 ~ 3.04) 3.02 (3.86 ~ 2.79) 3.43 (4.25 ~ 2.85)
Piping
Connections
Liquid mm φ 6.4 φ 6.4
Gas mm φ 12.7 φ 12.7
Drain mm φ 18.0 φ 18.0
Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes
Max. Interunit Piping Length m 30 30
Max. Interunit Height Difference m 20 20
Chargeless m 10 10
Amount of Additional Charge of
Refrigerant g/m 20 20
Indoor Unit FTX50GV1B FTX60GV1B
Front Panel Color White White
Airflow Rate
H
m³/min
(cfm)
14.7 (519) 16.1 (568) 16.2 (572) 17.4 (614)
M 12.4 (438) 13.9 (491) 13.6 (480) 15.1 (533)
L 10.3 (364) 11.5 (406) 11.4 (403) 12.7 (448)
SL 9.5 (335) 10.2 (360) 10.2 (360) 11.4 (403)
Fan
Type Cross Flow Fan Cross Flow Fan
Motor Output W 43 43
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 0.16 - 0.15 - 0.15 0.17 - 0.16 - 0.16 0.19 - 0.18 - 0.17 0.21 - 0.20 - 0.19
Power Consumption (Rated) W 34 - 34 - 34 36 - 36 - 36 40 - 40 - 40 45 - 45 - 45
Power Factor % 96.6 - 98.6 - 94.4 96.3 - 97.8 - 93.8 95.7 - 96.6 - 98.0 97.4 - 97.8 - 98.7
Temperature Control Microcomputer Control Microcomputer Control
Dimensions (H × W × D) mm 290 × 1,050 × 238 290 × 1,050 × 238
Packaged Dimensions (H × W × D) mm 337 × 1,147 × 366 337 × 1,147 × 366
Weight (Mass) kg 12 12
Gross Weight (Gross Mass) kg 17 17
Sound
Pressure
Level H / M / L / SL dB(A) 43 / 39 / 34 / 31 42 / 38 / 33 / 30 45 / 41 / 36 / 33 44 / 40 / 35 / 32
Sound Power Level dB 59 58 60 59
Outdoor Unit RX50G3V1B RX60G3V1B
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 1.50 1.50
Airflow Rate Hm³/min
(cfm)
48.9 (1,727) 45.0 (1,589) 50.9 (1,797) 46.3 (1,635)
SL 41.7 (1,472) 41.7 (1,472) 42.4 (1,497) 42.4 (1,497)
Fan Type Propeller Propeller
Motor Output W 53 53
Running Current (Rated) A 7.04 - 6.75 - 6.45 7.23 - 6.94 - 6.64 9.01 - 8.62 - 8.23 9.19 - 8.80 - 8.41
Power Consumption (Rated) W 1,516 - 1,516 - 1,516 1,564 - 1,564 - 1,564 1,950 - 1,950 - 1,950 1,995 - 1,995 - 1,995
Power Factor % 97.9 - 97.6 - 97.9 98.3 - 98.0 - 98.1 98.4 - 98.4 - 98.7 98.7 - 98.6 - 98.8
Starting Current A 7.4 9.4
Dimensions (H × W × D) mm 735 × 825 × 300 735 × 825 × 300
Packaged Dimensions (H × W × D) mm 797 × 992 × 390 797 × 992 × 390
Weight (Mass) kg 47 47
Gross Weight (Gross Mass) kg 52 52
Sound
Pressure
Level H / SL dB(A) 47 / 44 48 / 45 49 / 46 49 / 46
Sound Power
Level HdB63646363
Drawing No. 3D080645 3D080646
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

SiBE041029EB Specifications
Specifications 8
50 Hz, 220 - 230 - 240 V
Note: The data are based on the conditions shown in the table below.
Model
Indoor Unit FTX71GV1B
Outdoor Unit RX71GV1B9, RX71GV1B8
Cooling Heating
Capacity Rated
(Min. ~ Max.)
kW 7.1 (2.3 ~ 8.5) 8.2 (2.3 ~ 10.2)
Btu/h 24,200 (7,800 ~ 29,000) 28,000 (7,800 ~ 34,800)
kcal/h 6,110 (1,980 ~ 7,310) 7,050 (1,980 ~ 8,770)
Running Current Rated A 10.8 - 10.4 - 9.9 11.7 - 11.2 - 10.7
Power Consumption Rated
(Min. ~ Max.) W 2,350 (570 ~ 3,200) 2,550 (520 ~ 3,820)
Power Factor % 98.9 - 98.2 - 98.9 99.1 - 99.0 - 99.3
COP Rated
(Min. ~ Max.) W/W 3.02 (4.04 ~ 2.66) 3.22 (4.42 ~ 2.67)
Piping
Connections
Liquid mm φ 6.4
Gas mm φ15.9
Drain mm φ 18.0
Heat Insulation Both Liquid and Gas Pipes
Max. Interunit Piping Length m 30
Max. Interunit Height Difference m 20
Chargeless m 10
Amount of Additional Charge of
Refrigerant g/m 20
Indoor Unit FTX71GV1B
Front Panel Color White
Airflow Rate
H
m³/min
(cfm)
17.4 (614) 19.7 (696)
M 14.6 (516) 16.9 (597)
L 11.6 (410) 14.3 (505)
SL 10.6 (374) 12.7 (448)
Fan
Type Cross Flow Fan
Motor Output W 43
Speed Steps 5 Steps, Quiet, Auto
Air Direction Control Right, Left, Horizontal, Downward
Air Filter Removable / Washable / Mildew Proof
Running Current (Rated) A 0.21 - 0.20 - 0.19 0.28 - 0.27 - 0.26
Power Consumption (Rated) W 45 - 45 - 45 60 - 60 - 60
Power Factor % 97.4 - 97.8 - 98.7 97.4 - 96.6 - 96.2
Temperature Control Microcomputer Control
Dimensions (H × W × D) mm 290 × 1,050 × 238
Packaged Dimensions (H × W × D) mm 337 × 1,147 × 366
Weight (Mass) kg 12
Gross Weight (Gross Mass) kg 17
Sound
Pressure
Level H / M / L / SL dB(A) 46 / 42 / 37 / 34 46 / 42 / 37 / 34
Sound Power Level dB 63 62
Outdoor Unit RX71GV1B9, RX71GV1B8
Casing Color Ivory White
Compressor
Type Hermetically Sealed Swing Type
Model 2YC63BXD
Motor Output W 1,920
Refrigerant
Oil
Type FVC50K
Charge L 0.75
Refrigerant Type R-410A
Charge kg 2.30
Airflow Rate Hm³/min
(cfm)
54.5 (1,924) 46.0 (1,624)
SL 46.0 (1,624) 46.0 (1,624)
Fan Type Propeller
Motor Output W 66
Running Current (Rated) A 10.59 - 10.20 - 9.71 11.42 - 10.93 - 10.44
Power Consumption (Rated) W 2,305 - 2,305 - 2,305 2,490 - 2,490 - 2,490
Power Factor % 98.9 - 98.3 - 98.9 99.1 - 99.0 - 99.4
Starting Current A 11.7
Dimensions (H × W × D) mm 770 × 900 × 320
Packaged Dimensions (H × W × D) mm 900 × 925 × 390
Weight (Mass) kg 71
Gross Weight (Gross Mass) kg 79
Sound
Pressure
Level H / SL dB(A) 52 / 49 52 / 49
Sound Power
Level HdB 65 65
Drawing No. 3D080177
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

SiBE041029EB
9Printed Circuit Board Connector Wiring Diagram
Part 3
Printed Circuit Board
Connector Wiring Diagram
1. Indoor Unit.............................................................................................10
2. Outdoor Unit..........................................................................................12
2.1 RX50/60G2V1B, 71 Class......................................................................12
2.2 RX50/60G3V1B......................................................................................14