Daikin FTXD60JV1B User manual

SiBE04-101
Table of Contents i
Inverter Pair
FTXD-J, FLX-J / RXD-J
Series
Wall Mounted Type
 Heat Pump
Indoor Unit
FTXD50JV1B
FTXD60JV1B
FTXD 1JV1B
Outdoor Unit
RXD50JV1B
RXD60JV1B
RXD 1JV1B
Floor / Ceiling
Suspended Dual Type
 Heat Pump
Indoor Unit FLX50JV1B
FLX60JV1B
Outdoor Unit
RXD50JV1B
RXD60JV1B
SiBE04-101.book Page i Monday, October 15, 2001 3:08 PM

SiBE04-101
ii Table of Contents
1. Introduction .............................................................................................v
1.1 Safety Cautions ....................................................................................... v
Part 1 List of Function .................................................................1
1. Functions.................................................................................................2
1.1 List of Functions ..................................................................................... 2
Part 2 Specifications.....................................................................3
1. Specifications..........................................................................................4
1.1 Wall Mounted Type.................................................................................. 4
1.2 Floor / Ceiling Suspended ual Type...................................................... 6
Part 3 Printe Circuit Boar Connector Wiring Diagram .............7
1. Printed Circuit Board Connector Wiring iagram and Name..................8
1.1 Name of Connectors for Indoor Unit........................................................ 8
1.2 FTX 50 / 60 / 71J Series ........................................................................ 9
1.3 FLX50 / 60J Series................................................................................ 11
1.4 Name of Connectors for Outdoor Unit................................................... 13
1.5 RX 50 / 60 / 71J Series........................................................................ 14
Part 4 Main Function...................................................................17
1. General Functions.................................................................................18
1.1 Functions of Thermistors....................................................................... 18
1.2 Operating Modes................................................................................... 19
1.3 Frequency Principle............................................................................... 20
1.4 efrost Control ...................................................................................... 21
1.5 Forced Operation Mode......................................................................... 23
1.6 Flap Control........................................................................................... 24
1.7 Fan Speed Control for Indoor Units....................................................... 27
1.8 Fan Speed Control for Outdoor Units.................................................... 28
1.9 Outdoor Unit Silent Operation ............................................................... 29
1.10 General Functions ................................................................................. 30
1.11 Inverter Powerful Operation................................................................... 32
1.12 Home Leave Operation ......................................................................... 33
1.13 Automatic Operation.............................................................................. 34
1.14 Input Current Control............................................................................. 35
1.15 Freeze up Prevention Function in Cooling ............................................ 36
1.16 Peak-Cut Control Function .................................................................... 37
1.17 4-Way Valve Function Compensation ................................................... 38
1.18 Compressor Protection Function........................................................... 39
1.19 Wet Operation Protection I (Securing of ifferential Pressure
and Blown Air Temperature).................................................................. 40
1.20 Wet Operation Protection II (Protection from ifferential Pressure)...... 41
1.21 ew Prevention Function ...................................................................... 42
1.22 Setting for Long Piping .......................................................................... 43
1.23 On-site Setting Jumper Wire ................................................................. 44
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SiBE04-101
Table of Contents iii
Part 5 System Configuration.......................................................45
1. Instruction..............................................................................................46
1.1 FTX 50 / 60 / 71J ................................................................................. 46
1.2 FLX50 / 60J ........................................................................................... 65
Part 6 Service Diagnosis.............................................................81
1. Caution for iagnosis............................................................................82
1.1 Troubleshooting with the Operation Lamp............................................. 82
1.2 Troubleshooting with the LE Indication............................................... 83
2. Problem Symptoms and Measures.......................................................84
3. Service Check Function ........................................................................85
3.1 ARC417 Series...................................................................................... 85
3.2 ARC423 Series...................................................................................... 86
4. Troubleshooting ....................................................................................87
4.1 Indoor Units ........................................................................................... 87
4.2 Outdoor Units ........................................................................................ 88
4.3 Faulty PCB ............................................................................................ 89
4.4 Operation Shutdown ue to High-Pressure Control
or Freeze-Up Protection (Thermistor Activation).................................. 90
4.5 Operation Halt ue to Fan Motor ( C Motor) or Related Abnormality
[Wall Mounted Type].............................................................................. 91
4.6 Operation Halt ue to Fan Motor (AC Motor) or Related Abnormality
(Floor / Ceiling Suspended ual Type). ................................................ 93
4.7 Operation Halt ue to etection of Thermistor
or Related Abnormality.......................................................................... 94
4.8 Faulty Indoor Unit PCB.......................................................................... 95
4.9 Faulty Indoor Unit PCB.......................................................................... 96
4.10 Power Supply Abnormalities or Faulty Indoor PCB............................... 97
4.11 Signal Transmission Error (between Indoor and Outdoor Units)........... 98
4.12 Faulty Indoor / Outdoor Power Supply Specification............................. 99
4.13 Operation Halt ue to High Pressure Control for Cooling Operation .. 100
4.14 Operation Halt ue to ischarge Pipe Temperature Control .............. 101
4.15 Interrupt ue to OL Action or Thermal Fuse Blow-Out........................ 102
4.16 Compressor Seizing ............................................................................ 104
4.17 C Fan Seizing ................................................................................... 105
4.18 Operation Halt ue to etection of Input Over Current....................... 106
4.19 Operation Halt ue to Position etection Sensor ............................... 108
4.20 Operation Halt ue to etection of CT Error....................................... 109
4.21 Output Overcurrent.............................................................................. 110
4.22 Operation Halt ue to Thermistor Error or isconnection etection... 112
4.23 Operation Halt ue to etection of Insufficient Gas............................ 113
4.24 etection of Low Voltage (LVP) .......................................................... 115
4.25 Faulty Outdoor Unit PCB..................................................................... 116
4.26 Faulty Outdoor Unit PCB and Transmitting/Receiving Circuit ............. 117
5. Checks ................................................................................................119
5.1 How to Check ...................................................................................... 119
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SiBE04-101
iv Table of Contents
Part 7 Removal Proce ure........................................................129
1. For RX 50·60·71J ..............................................................................130
1.1 Removal of Outer Panels and Fan Motor............................................ 130
1.2 Removal of Electrical Box.................................................................... 134
1.3 Removal of Partition Board and Reactor............................................. 140
1.4 Removal of Sound Insulation for Compressor..................................... 142
1.5 Removal of 4-way Valve...................................................................... 143
1.6 Removal of Motorized Valve................................................................ 144
1.7 Removal of Compressor...................................................................... 145
Part 8 Appen ix.........................................................................147
1. Piping iagrams..................................................................................148
1.1 Indoor Units ......................................................................................... 148
1.2 Outdoor Units ...................................................................................... 149
2. Wiring iagrams..................................................................................150
2.1 Indoor Units ......................................................................................... 150
2.2 Outdoor Units ...................................................................................... 151
In ex .............................................................................................i
Drawings & Flow Charts ...............................................................iii
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SiBE04-101 Introduction
v
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 Cautions 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.
o 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.
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Introduction SiBE04-101
vi
1.1.2 Cautions Regarding Products after Repair
Caution
o not repair the electrical components with wet hands.
Working on the equipment with wet hands can cause an electrical shock.
o 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.
o 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
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.
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SiBE04-101 Introduction
vii
1.1.3 Inspection after Repair
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.
o not damage or modify the power cable.
amaged or modified power cable can cause an electrical shock or fire.
Placing heavy items on the power cable, and heating or pulling the power cable can
damage the cable.
o not mix air or gas other than the specified refrigerant (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.
o 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.
amaged cable and wires can cause an electrical shock, excessive heat generation or
fire.
o 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.
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.
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Introduction SiBE04-101
viii
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
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.
Caution
Icon Type of
Information escription
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.
SiBE04-101.book Page viii Monday, October 15, 2001 3:08 PM

SiBE04-101
List of Function 1
Part 1
List of Function
1. Functions.................................................................................................2
1.1 List of Functions ..................................................................................... 2
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Functions SiBE04-101
2 List of Function
1. Functions
1.1 List of Functions
Note:  : Holding Functions
— : No Functions
Category Functions
FTX 50·60·71JV1B RX 50·60·71JV1B FLX50·60JV1B RX 50·60JV1B
Category Functions
FTX 50·60·71JV1B RX 50·60·71JV1B FLX50·60JV1B RX 50·60JV1B
Basic
Function Inverter (with Inverter Power Control) 
Health
Health &
Clean
Air Purifying Filter with Bacteriostatic,
Virustatic & eodorizing Functions 
Operation Limit for Cooling (˚C) -10
~46 -10 ~46 Longlife Filter ——
Operation Limit for Heating (˚C) -15
~18 -15 ~18 Ultra-Longlife Filter (Option) ——
Microprocessor Control  Photocatalytic eodorizing Filter — —
PAM Control  Photocatalytic Filter with UV Lamp — —
Compressor Oval Scroll Compressor ( AIKIN
SCROLL) —— Mold Proof Air Filter 
Swing Compressor ( AIKIN
ROTARY) 
Washable Grille 
—
Rotary Compressor — — Filter Cleaning Indicator — —
Reluctance C Motor  Good-Sleep Cooling Operation — —
Comfortable
Airflow ual Flaps — — Timer 72-Hour On/Off Timer — —
Power-Airflow ual Flaps 
5 Step
—24-Hour On/Off Timer 
Power-Airflow iffuser  — Night Set Mode 
Wide-Angle Louvers 
5 Step 
Just Fit Thermostatic Timer ——
Vertical Auto-Swing (Up and own)  Worry Free
“Reliability &
urability”
Auto-Restart (after Power Failure) 
Horizontal Auto-Swing (Right and Left)  — Self- iagnosis ( igital, LE ) isplay 
3- Airflow 
—The Remote Controller Loss
Prevention with the Chain (Option) 
3-Step Airflow (H/P Only) — — Wiring-Error Check — —
Comfortable
Control
Comfort
Control
Auto Fan Speed  Anticorrosion Treatment of Outdoor
Heat Exchanger 
Silent Operation Control (Automatic) —— Flexibility Multi-Split / Split Type Compatible
Indoor Unit 
Outdoor Unit Silent Operation
(Manual) 
Flexible Voltage Correspondence 
Intelligent Eye — — High Ceiling Application — —
Quick Warming Function  Chargeless 10m 10m
Hot-Start Function  Remote
Control 5-Rooms Centralized Controller (Option) 
Automatic efrosting  Remote Control Adaptor (Option)
(Normal Open-Pulse) 
Operation Automatic Operation  Remote Control Adaptor (Normal
Open Contact) 
Programme ry Function  lll-NET Compatible (Adaptor) 
Fan Only — — Remote
Controller Wireless 
Lifestyle
Convenience New Powerful Operation (Non- Inverter) —— Wired ——
Inverter Powerful Operation 
Priority-Room Setting — —
Laundry Programme Operation — —
Home Leave Operation 
Power Selection — —
Indoor Unit On/Off Switch 
Signal Reception Indicator 
Temperature isplay — —
SiBE04-101.book Page 2 Monday, October 15, 2001 3:08 PM