Daikin Service Manual

Inverter Pair D-Series
Heat Pump
Indoor Unit
FTXS09DVJU FDXS09DVJU
FTXS12DVJU FDXS12DVJU
FTXS15DVJU
FTXS18DVJU
FTXS24DVJU
Outdoor Unit
RXS09DVJU
RXS12DVJU
RXS15DVJU
RXS18DVJU
RXS24DVJU

Table of Contents :

1. Introduction
1.1 Safety Cautions
Part 1 List of Functions
1. List of Functions
Part 2 Specifications
1. Specifications
Part 3 Printed Circuit Board Connector Wiring Diagram
1. Printed Circuit Board Connector Wiring Diagram
1.1 FTXS09/12DVJU
1.2 FTXS15/18/24DVJU
1.3 FDXS09/12DVJU
1.4 RXS09/12DVJU
1.5 RXS15/18/24DVJU
Part 4 Function and Control
1. Main Functions
1.1 Frequency Principle
1.2 Power-Airflow Dual Flaps, Wide-Angle Louvres and Auto-Swing
(Only for the Single Split Duct-Free System)
1.3 Fan Speed Control for Indoor Units
1.4 Program Dry Function
1.5 Automatic Operation
1.6 Thermostat Control
1.7 NIGHT SET Mode
1.8 INTELLIGENT EYE
1.9 HOME LEAVE Operation
1.10 Inverter Powerful Operation
1.11 Other Functions
2. Function of Thermistor
2.1 Heat Pump Model
3. Control Specification (09/12 Class)
3.1 Mode Hierarchy
3.2 Frequency Control
3.3 Controls at Mode Changing / Start-up
3.4 Discharge Pipe Control
3.5 Input Current Control
3.6 Freeze-up Protection Control
3.7 Heating Peak-cut Control
3.8 Fan Control
3.9 Liquid Compression Protection Function 2
3.10 Defrost Control
3.11 Electronic Expansion Valve Control
3.12 Malfunctions
3.13 Forced Operation Mode
3.14 Additional Function
4. Control Specification (15/18/24 Class)
4.1 Mode Hierarchy
4.2 Frequency Control
4.3 Controls at Mode Changing / Start-up
4.4 Discharge Pipe Temperature Control
4.5 Input Current Control
4.6 Freeze-up Protection Control
4.7 Heating Peak-cut Control
4.8 Fan Control
4.9 Liquid Compression Protection Function 2
4.10 Low Hz High Pressure Limit
4.11 Defrost Control
4.12 Electronic Expansion Valve Control
4.13 Malfunctions
4.14 Forced Operation Mode
4.15 Additional Function
Part 5 System Configuration
1. System Configuration
2. Instruction
2.1 Safety Precautions
2.2 The Single Split Duct-Free System FTXS09/12DVJU
2.3 The Single Split Duct-Free System FTXS15/18/24DVJU
2.4 The Slim Duct Built-in System FDXS09/12DVJU
Part 6 Service Diagnosis
1. Caution for Diagnosis
2. Problem Symptoms and Measures
3. Service Check Function
4. Troubleshooting
4.1 Error Codes and Description
4.2 Indoor Unit PCB Abnormality
4.3 Freeze-up Protection Control or High Pressure Control
4.4 Fan Motor or Related Abnormality
4.5 Thermistor or Related Abnormality (Indoor Unit)
4.6 Signal Transmission Error (between Indoor and Outdoor Unit)
4.7 OL Activation (Compressor Overload)
4.8 Compressor Lock
4.9 DC Fan Lock
4.10 Input Over Current Detection
4.11 Four Way Valve Abnormality
4.12 Discharge Pipe Temperature Control
4.13 High Pressure Control in Cooling
4.14 Position Sensor Abnormality
4.15 DC Voltage / Current Sensor Abnormality
4.16 CT or Related Abnormality
4.17 Thermistor or Related Abnormality (Outdoor Unit)
4.18 Electrical Box Temperature Rise
4.19 Radiation Fin Temperature Rise
4.20 Output Over Current Detection
4.21 Insufficient Gas
4.22 Over-voltage Detection
4.23 Low-voltage Detection
5. Check
5.1 How to Check
Part 7 Removal Procedure
1. FTXS09/12DVJU
1.1 Removal of Air Filter
1.2 Removal of Front Grille
1.3 Removal of Horizontal Blade and Vertical Blade
1.4 Removal of Electrical Box, PCB and Swing Motor
1.5 Removal of Heat Exchanger
1.6 Install of Drain Plug
1.7 Removal of Fan Rotor and Fan Motor
2. FTXS15/18/24DVJU
2.1 Removal of the Air Filter / Front Panel
2.2 Removal of the Front Grille
2.3 Removal of the Horizontal Blades / Vertical Blades
2.4 Removal of the Electrical Box / PCB / Swing Motor
2.5 Removal of the Heat Exchanger
2.6 Removal of the Fan Rotor / Fan Motor
3. RXS09/12DVJU
3.1 Removal of Panels and Fan Motor
3.2 Removal of Electrical Box
3.3 Removal of Reactor and Partition Plate
3.4 Removal of Sound Blanket
3.5 Removal of Four Way Valve
3.6 Removal of Compressor
3.7 Removal of PCB
4. RXS15/18/24DVJU
4.1 Removal of the Panels and Plates
4.2 Removal of the Fan Motor / Propeller Fan
4.3 Removal of the PCB / Electrical Box
4.4 Removal of the Reactor
4.5 Removal of the Sound Blanket
4.6 Removal of the Four Way Valve
4.7 Removal of the Electronic Expansion Valve
4.8 Removal of the Compressor
Part 8 Others
1. Others
1.1 Test Run from the Remote Controller
1.2 Jumper Settings
Part 9 Appendix
1. Piping Diagrams
1.1 Indoor Units
1.2 Outdoor Units
2. Wiring Diagrams
2.1 Indoor Units
2.2 Outdoor Units
Index
Drawings & Flow Charts

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Inverter Pair E-Series
Heat Pump
Indoor Units
FTXR28EV1B
FTXR42EV1B
FTXR50EV1B
Outdoor Units
RXR28EV1B
RXR42EV1B
RXR50EV1B
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Service Manual Inverter Pair Wall Mounted Type K-Series
[Applied Models]
Inverter Pair : Cooling Only
Inverter Pair : Heat Pump
Cooling Only

Indoor Unit
FTXN09KEVJU
FTXN12KEVJU
FTXN15KVJU
FTXN18KVJU
FTXN24KVJU
Outdoor Unit
RKN09KEVJU
RKN12KEVJU
RKN15KEVJU
RKN18KEVJU
RKN24KEVJU

Heat Pump
Indoor Unit
FTXN09KEVJU
FTXN12KEVJU
FTXN15KVJU
FTXN18KVJU
FTXN24KVJU
Outdoor Unit
RXN09KEVJU
RXN12KEVJU
RXN15KEVJU
RXN18KEVJU
RXN24KEVJU

Table of Contents :

Safety Consideration
Part 1 List of Functions
1. Functions
Part 2 Specifications
1. Specifications
1.1 Cooling Only
1.2 Heat Pump
Part 3 Printed Circuit Board Connector Wiring Diagram
1. Indoor Unit
1.1 09/12 Class
1.2 15/18/24 Class
2. Outdoor Unit
2.1 09/12 Class
2.2 15/18/24 Class
Part 4 Function and Control
1. Main Functions
1.1 Temperature Control
1.2 Frequency Principle
1.3 Airflow Direction Control
1.4 Fan Speed Control for Indoor Unit
1.5 Program Dry Operation
1.6 Automatic Operation
1.7 Thermostat Control
1.8 NIGHT SET Mode
1.9 ECONO Operation
1.10 Inverter POWERFUL Operation
1.11 Other Functions
2. Function of Thermistor
3. Control Specification
3.1 Mode Hierarchy
3.2 Frequency Control
3.3 Controls at Mode Changing / Start-up
3.4 Discharge Pipe Temperature Control
3.5 Input Current Control
3.6 Freeze-up Protection Control
3.7 Heating Peak-cut Control
3.8 Outdoor Fan Control
3.9 Liquid Compression Protection Function
3.10 Defrost Control
3.11 Electronic Expansion Valve Control
3.12 Malfunctions
Part 5 Operation Manual
1. System Configuration
2. 09/12 Class
2.1 Remote Controller
2.2 AUTO · DRY · COOL · HEAT · FAN Operation
2.3 Adjusting the Airflow Direction and Rate
2.4 COMFORT AIRFLOW Operation
2.5 POWERFUL Operation
2.6 ECONO Operation
2.7 OFF TIMER Operation
2.8 ON TIMER Operation
3. 15/18/24 Class
3.1 Remote Controller
3.2 AUTO · DRY · COOL · HEAT · FAN Operation
3.3 Adjusting the Airflow Direction and Rate
3.4 POWERFUL Operation
3.5 OFF TIMER Operation
3.6 ON TIMER Operation
Part 6 Service Diagnosis
1. Troubleshooting with LED
1.1 Indoor Unit
1.2 Outdoor Unit
2. Problem Symptoms and Measures
3. Service Check Function
4. Troubleshooting
4.1 Error Codes and Description
4.2 Indoor Unit PCB Abnormality
4.3 Freeze-up Protection Control or Heating Peak-cut Control
4.4 Fan Motor (DC Motor) or Related Abnormality
4.5 Thermistor or Related Abnormality (Indoor Unit)
4.6 Signal Transmission Error (between Indoor Unit and Outdoor Unit)
4.7 Unspecified Voltage (between Indoor Unit and Outdoor Unit)
4.8 Outdoor Unit PCB Abnormality
4.9 OL Activation (Compressor Overload)
4.10 Compressor Lock
4.11 DC Fan Lock
4.12 Input Overcurrent Detection
4.13 Four-Way Valve Abnormality
4.14 Discharge Pipe Temperature Control
4.15 High Pressure Control in Cooling
4.16 Compressor System Sensor Abnormality
4.17 Position Sensor Abnormality
4.18 DC Voltage / Current Sensor Abnormality (09/12 Class Only)
4.19 Thermistor or Related Abnormality (Outdoor Unit)
4.20 Electrical Box Temperature Rise
4.21 Radiation Fin Temperature Rise
4.22 Output Overcurrent Detection
4.23 Refrigerant Shortage
4.24 Low-voltage Detection or Over-voltage Detection
5. Check
5.1 Thermistor Resistance Check
5.2 Fan Motor Connector Output Check
5.3 Power Supply Waveforms Check
5.4 Electronic Expansion Valve Check
5.5 Four-Way Valve Performance Check
5.6 Inverter Unit Refrigerant System Check
5.7 “Inverter Checker” Check
5.8 Rotation Pulse Check on the Outdoor Unit PCB
5.9 Installation Condition Check
5.10 Discharge Pressure Check
5.11 Outdoor Fan System Check
5.12 Main Circuit Short Check
5.13 Power Module Check
Part 7 Removal Procedure
1. Indoor Unit: 09/12 Class
1.1 Removal of Air Filters
1.2 Removal of Horizontal Blade
1.3 Removal of Front Panel
1.4 Removal of Front Grille
1.5 Removal of Electrical Box / Vertical Blades
1.6 Removal of Swing Motor / PCBs
1.7 Removal of Indoor Heat Exchanger
1.8 Removal of Fan Rotor / Fan Motor
1.9 Exchange of Piping Direction (Drain Hose)
2. Indoor Unit: 15/18/24 Class
2.1 Removal of Air Filters / Front Panel
2.2 Removal of Front Grille
2.3 Removal of Horizontal Blades / Vertical Blades
2.4 Removal of Electrical Box / PCBs / Swing Motors
2.5 Removal of Indoor Heat Exchanger
2.6 Removal of Fan Motor / Fan Rotor
3. Outdoor Unit: 09/12 Class
3.1 Removal of Outer Panels
3.2 Removal of Outdoor Fan / Fan Motor
3.3 Removal of Electrical Box / PCB
3.4 Removal of Sound Blankets
3.5 Removal of Four-Way Valve
3.6 Removal of Compressor
4. Outdoor Unit: 15/18/24 Class
4.1 Removal of Outer Panels
4.2 Removal of Outdoor Fan / Fan Motor
4.3 Removal of Electrical Box
4.4 Removal of PCBs
4.5 Removal of Sound Blankets
4.6 Removal of Electronic Expansion Valve AssemblyASSY
4.7 Removal of Four-Way Valve
4.8 Removal of Compressor
Part 8 Trial Operation and Field Settings
1. Pump Down Operation
2. Forced Cooling Operation
3. Trial Operation
4. Field Settings
4.1 Model Type Setting
4.2 Temperature Display Switch
4.3 When 2 Units are Installed in 1 Room
4.4 Facility Setting Switch (cooling at low outdoor temperature)
4.5 Jumper Settings
5. Application of Silicon Grease to a Power Transistor and a Diode Bridge
Part 9 Appendix
1. Piping Diagrams
1.2 Outdoor Unit
2. Wiring Diagrams
2.1 Indoor Unit
2.2 Outdoor Unit

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DAIKIN Pocket Manual
Service Diagnosis SPLIT & MULTI

Table of Contents :

Service Diagnosis
SPLIT & MULTI
1. Troubleshooting with LED
1.1 Indoor Unit
1.2 Outdoor Unit
2. Troubleshooting by Symptoms
2.1 Air conditioner does not run
2.2 Air conditioner runs but does not cool (heat) the room
2.3 When operation starts, safety breaker works.
2.4 Air conditioner makes big noise and vibration
2.5 Air is not humidified enough (for humidifying type unit)
3. Service Check Function
3.1 Check Method 1
3.2 Check Method 2
3.3 ARC447A1, A2, A3
4. List of Applicable Models
4.1 Indoor Unit
4.2 Outdoor Unit
5. Error Codes and Description
5.1 Indoor Unit
5.2 Outdoor Unit
6. Troubleshooting by Error Code
6.1 Indoor Unit PCB Abnormality
6.2 Drain Water Level or Related Abnormality
6.3 Freeze-up Protection Control or Heating Peak-cut Control
6.4 Fan Motor or Related Abnormality
6.5 Radiant Panel Temperature Rise, Indoor Electronic Expansion Valve (Motor Operated Valve) Abnormality, Freeze-up Protection Control
6.6 Streamer Unit Abnormality
6.7 Cleaning Unit System Abnormality
6.8 Thermistor or Related Abnormality (Indoor Unit)
6.9 Shutter Drive Motor / Shutter Limit
Switch Abnormality
6.10Front Panel Open / Close Fault
6.11Grille Locking Abnormality, Panel Up
and Down / Storage / Locking Abnormality
6.12Humidity Sensor Abnormality
6.13Lights-out of Microcomputer Status Lamp
6.14Refrigerant Shortage
6.15Low-voltage Detection or Over-voltage Detection
6.16Low-voltage Detection
6.17Signal Transmission Error (between Indoor Unit and Outdoor Unit)
6.18Outdoor Unit PCB Abnormality or Communication Circuit Abnormality
6.19Signal Transmission Error on Outdoor Unit PCB
6.20Incomplete Setting for Hose Length
6.21Unspecified Voltage (between Indoor Unit and Outdoor Unit)
6.22Unspecified Voltage (between Indoor Unit and Outdoor Unit) / Anti-icing Function in Other Rooms
6.23Anti-icing Function
6.24Outdoor Unit PCB Abnormality
6.25OL Activation (Compressor Overload)
6.26Compressor Lock
6.27DC Fan Lock
6.28Input Overcurrent Detection
6.29Four Way Valve Abnormality
6.30Discharge Pipe Temperature Control
6.31High Pressure Control in Cooling
6.32Compressor System Sensor Abnormality
6.33Damper Abnormality
6.34Position Sensor Abnormality
6.35DC Voltage / Current Sensor Abnormality
6.36CT or Related Abnormality
6.37Thermistor or Related Abnormality (Outdoor Unit)
6.38Electrical Box Temperature Rise
6.39Radiation Fin Temperature Rise
6.40Output Overcurrent Detection
6.41Fan Motor System Abnormality / Fan Lock
6.42Heater Wire Abnormality
6.43Humidifying Thermistor Abnormality / Humidifying Heater Temperature Abnormality
7. Check
7.1 Thermistor Resistance Check
7.2 Fan Motor Connector Check
7.3 Fan Motor Connector Check
7.4 Hall IC Check
7.5 Indoor Electronic Expansion Valve Coil Check
7.6 Humidity Sensor Check
7.7 Limit Switch Continuity Check
7.8 Power Supply Waveform Check
7.9 Outdoor Electronic Expansion Valve Check
7.10Four Way Valve Performance Check
7.11Inverter Unit Refrigerant System Check
7.12“Inverter Checker” Check
7.13Rotation Pulse Check on the Outdoor Unit PCB
7.14Installation Condition Check
7.15Discharge Pressure Check
7.16Outdoor Fan System Check
7.17Main Circuit Short Check
7.18Capacitor Voltage Check
7.19Power Module Check
7.20Dehumidifying Solenoid Valve Check

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Split System Air Conditioners

SkyAir Inverter

R-410A Heat Pump 60Hz

P Series

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Service Manual of Electronic Circuit in DAIKIN Air Conditioners Download here

OPERATION MANUAL SPLIT SYSTEM Ducted Air Conditioner Using Remote Controller BRC1C61
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DAIKIN ROOM AIR CONDITIONER Operation Manual
Models
FTXS50FVMA FTKS50FVMA
FTXS60FVMA FTKS60FVMA
FTXS71FVMA FTKS71FVMA
FTXS80FVMA
FTXS90FVMA
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Service Manual Inverter Pair
FTK(X)-J / RK(X)-J Series
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Daikin Service Manual Air Conditioning and Refrigeration Equipment Download here

Daikin Operation Manual Split System Air Conditioner
Models (Ceilling-mounted cassette built-in type)
FBQ60BV1 FBQ60BVL
FBQ71BV1 FBQ71BVL
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DAIKIN ROOM AIR CONDITIONER Operation Manual
Models
FTXS50FV1B FTKS50FV1B
FTXS60FV1B FTKS60FV1B
FTXS71FV1B FTKS71FV1B
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Marine type Container Refrigeration Unit
SERVICE MANUAL DAIKIN CONTAINER
LXE10E-A14
LXE10E-A15
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OPERATION MANUAL
VRV SYSTEM AIR CONDITIONER
MODELS
RXYMQ36MVJU
RXYMQ48MVJU
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SERVICE CHECKER TYPE INSTRUCTION MANUAL (Corresponding to Ver.101)
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INSTALLATION MANUAL VRV III
System air conditioner
RXYQ72PYDN
RXYQ96PYDN
RXYQ120PYDN
RXYQ144PYDN
RXYQ168PYDN
RXYQ192PYDN
RXYQ216PYDN
RXYQ240PYDN
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INSTALLATION MANUAL R410A Split Series
INVERTER Models
FTXS50FV1B FTKS50FV1B
FTXS60FV1B FTKS60FV1B
FTXS71FV1B FTKS71FV1B
NON-INVERTER Models
FTYN50FV1B FTN50FV1B
FTYN60FV1B FTN60FV1B
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Service Manual
ERQ Condensing Unit Three Phase
ERQ 125/200/250 A7W1B
EKEQD/F/MCBV3 (control box)
EKEXV 50/63/80/100/125/140/200/250
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Service Manual VRV III-S
RXYSQ4-5-6PA7Y1B, PA7V1B
R-410A
HEAT Pump 50Hz
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Service Manual
EWWD170-600DJYNN
Water-cooled screw chillers
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OPERATION MANUAL
SPLIT SYSTEM
Ducted Air Conditioner
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Service Manual
EWWQ - AJYNN
Water - cooled screw chillers
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DAIKIN
technical data
ERHQ011 - 016AAW1
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Service Manual
ERQ Condensing Unit Single Phase
ERQ 100/125/140 A7V1B (outdoor unit)
EKEQD/F/MCBV3 (control box)
EKEXV 50/63/80/100/125/140 (expansion valve kit)
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DAIKIN ROOM AIR CONDITIONER
Operation Manual
MODELS
FT50BSG
FT60BSG
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CONTROL PANEL OPERATING MANUAL
AIR COOLED SCREW CHILLER GLOBAL DESIGN
Software version ASDU01A and later
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Service Manual
VRV II
Basic Training Manual
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Daikin LXE10E – Technical Information
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OPERATION MANUAL
Remote controller
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Service Manual
Photocatalytic Air Purifiers
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Service Manual
EUWA*5-24KAZW1 R-407C
EUWY*5-24KAZW1 R-407C
Small air-cooled chillers and heat pump
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OPERATION MANUAL
SPLIT SYSTEM Air Conditioner
MODELS
(Ceiling suspended Cassette type)
FUQ71BUV1B FXUQ71MV1 FUQ71BVV1B FXUQ71MAV1
FUQ100BUV1B FXUQ100MV1 FUQ100BVV1B FXUQ100MAV1
FUQ125BUV1B FXUQ125MV1 FUQ125BVV1B FXUQ125MAV1
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CONTROL PANEL OPERATING MANUAL
WATER COOLED SCREW CHILLER
with software version 10.100 and later
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Service Manual
VRV-S
R410A Heat Pump 60Hz
RXYMQ-M Series
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DAIKIN VRV
Design, Installation & Testing Instruction
R410A Heat Pump 60Hz

Table of Contents

Part 1 General Information
1. Product Outline
1.1 Model Names of Indoor/Outdoor Units
1.2 External Appearance
1.3 Model Selection
2. Points to Bear in Mind at the System Design
2.1 Points Relating to the Performance of the Air Conditioning Units
2.2 The Installation is of Vital Importance
2.3 Striking a Balance between System Installation and General
Construction Work (Comprehensive Flow Chart
2.4 Points to Bear in Mind when Preparing the Contract Drawings
3. Installation
3.1 Step by Step Installation Procedure
3.2 Work Involved in Individual Operations and Points to be Borne in Mind
4. Test Operation
4.1 Procedure and Outline
4.2 Operation When Power is Turned On
4.3 Outdoor Unit PC Board Layout
4.4 Field Setting
5. Caution for Refrigerant Leaks
5.1 Caution for Refrigerant Leaks
6. Hand Over to Customer
6.1 Operational Steps
7. Appendix
7.1 Operating Noise of Indoor Units
7.2 Allowable Piping Length
7.3 Refrigerant branch kit selection
7.4 Pipe size selection
7.5 How to calculate the additional refrigerant to be charged
7.6 REFNET Pipe Connections for VRVII R410A Series
7.7 VRV Inspection Sheet
7.8 Piping System Diagrams
7.9 Wiring Diagrams
7.10 Bad Examples and Good Examples in Installation
Part 2 Installation Manual Outdoor Unit
1. Introduction
1.1 Combination
1.2 Standard Operation Limit
1.3 Standard Supplied Accessories
1.4 Option Accessory
1.5 Technical Specifications
1.6 Electrical Specifications
2. Main Components
3. Selection of Location
4. Inspecting and Handling the Unit
5. Unpacking and Placing the Unit
6. Refrigerant Piping
6.1 Selection of Piping Material
6.2 Connecting the Refrigerant Piping
6.3 Example of Connection
6.4 Leak Test and Vacuum Drying
6.5 Pipe Insulation
6.6 Additional Refrigerant Charge
7. Field Wiring
7.1 Optional Parts Cool/Heat Selector
7.2 Power Circuit and Cable Requirements
7.3 General
7.4 Examples
8. Before Operation
8.1 Checks before Initial Start-up
8.2 Test Run
9. Caution for Refrigerant Leaks
Part 3 Operation Manual Outdoor Unit
1. Safety Considerations
2. What to do before Operation
3. Remote Controller and Changeover Switch: Name and Function of Each Switch and Display
4. Operation Range
5. Operation Procedure
5.1 Cooling, Heating, and Fan Only Operation
5.2 Program Dry Operation
5.3 Adjusting the Air Flow Direction
5.4 Programming Start and Stop of the System with Timer
5.5 Setting the Master Remote Controller
5.6 Precautions for Group Control System or Two Remote Controller Control System
6. Optimum Operation
7. Following Symptoms are not Air Conditioner Troubles
7.1 The System does not Operate
7.2 Cool/Heat Cannot be Changed Over
7.3 Fan Operation is Possible, but Cooling and Heating do not Work
7.4 The Fan Strength does not Correspond to the Setting
7.5 The Fan Direction does not Correspond to the Setting
7.6 White Mist comes out of a Unit
7.7 Noise of Air Conditioners
7.8 Dust comes out of the Unit
7.9 The Units can Give off Odours
7.10 The Outdoor Unit Fan does not Spin
7.11 The Display Shows "88"
7.12 The Compressor in the Outdoor Unit does not Stop after a
Short Heating Operation
7.13 The Inside of an Outdoor Unit is Warm Even When
the Unit has Stopped
8. Trouble Shooting
Part 4 Precautions for New Refrigerant (R410A)
1. Precautions for New Refrigerant (R410A)
1.1 Outline
1.2 Refrigerant Cylinders
1.3 Service Tools
Index
Drawings & Flow Charts

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DAIKIN OPERATION MANUAL SPLIT SYSTEM Air Conditioner
MODELS (Ceiling suspension type)
FH(Y)35BJV1
FH(Y)45BJV1
FH(Y)60BJV1
FHY71BJV1
FHY100BJV1
FHY125BJV1

FHYP35BV1
FHYP45BV1
FHYP60BV1
FHYP71BV1
FHYP100BV1
FHYP125BV1

FH35BZV1
FH45BZV1
FH60BZV1

FHQ35BUV1B
FHQ50BUV1B
FHQ60BUV1B
FHQ35BVV1B
FHQ50BVV1B
FHQ60BVV1B
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DAIKIN Service Manual
SUPER MULTI NX
D-Series / E-Series

SUPER MULTI NX
D-Series / E-Series

Cooling Only
Indoor Unit
FTKS20D3VMW
FTKS20D3VML
FTKS25D3VMW
FTKS25D3VML
FTKS35D3VMW
FTKS35D3VML
FTKS50D2V1W
FTKS50D2V1L

FTKS20CAVMB
FTKS25CAVMB
FTKS35CAVMB
FTKS50EV1B
FTKS60EV1B
FTKS71EV1B
FTKS71BAVMB

FDKS25CAVMB
FDKS35CAVMB
FDKS50CVMB
FDKS60CVMB
FDKS25EAVMB
FDKS35EAVMB

FLKS25BAVMB
FLKS35BAVMB
FLKS50BAVMB
FLKS60BAVMB
FVKS25BAVMB
FVKS35BAVMB
FVKS50BAVMB

Outdoor Unit
4MKS75E2V1B
4MKS75E3V1B
4MKS90DAVMB

Heat Pump
Indoor Unit
FTXG25EV1BW
FTXG25EV1BS
FTXG35EV1BW
FTXG35EV1BS
CTXG50EV1BW
CTXG50EV1BS
FTXS20D3VMW
FTXS20D3VML
FTXS25D3VMW
FTXS25D3VML

FTXS35D3VMW
FTXS35D3VML
FTXS50D2V1W
FTXS50D2V1L
FTXS20CAVMB
FTXS25CAVMB
FTXS25CAVMB
FTXS35CAVMB
FTXS35CAVMB
FTXS50EV1B
FTXS60EV1B
FTXS71EV1B
FTXS71BAVMB

FDXS25CAVMB
FDXS35CAVMB
FDXS50CVMB
FDXS60CVMB
FDXS25EAVMB
FDXS35EAVMB

FLXS25BAVMB
FLXS35BAVMB
FLXS50BAVMB
FLXS60BAVMB
FVXS25BAVMB
FVXS35BAVMB
FVXS50BAVMB

Outdoor Unit
4MXS68E2V1B
4MXS68E3V1B
4MXS80DAVMB

Table of Contents

Table of Content
1. Introduction
1.1 Safety Cautions
Part 1 List of Functions
1. List of Functions
1.1 Cooling Only Models
1.2 Heat Pump Models

Part 2 Specifications
1. Specifications
1.1 Indoor Units - Cooling Only
1.2 Outdoor Units - Cooling Only
1.3 Indoor Units - Heat Pump
1.4 Outdoor Units - Heat Pump

Part 3 Printed Circuit Board Connector Wiring Diagram
1. Printed Circuit Board Connector Wiring Diagram
1.1 Wall Mounted Type
1.2 Duct Connected Type
1.3 Floor / Ceiling Suspended Dual Type
1.4 Floor Standing Type
1.5 Outdoor Units

Part 4 Function and Control
1. Main Functions
1.1 Frequency Principle
1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing
1.3 Operation Starting Contro
1.4 Fan Speed Control for Indoor Units
1.5 Programme Dry Function
1.6 Automatic Operation
1.7 Thermostat Control
1.8 Night Set Mode
1.9 ECONO Mode
1.10 INTELLIGENT EYE (Wall Mounted Type only)
1.11 HOME LEAVE Operation
1.12 Inverter POWERFUL Operation
1.13 Other Functions

2. Function of Main Structural Parts
2.1 Main Structural Parts
2.2 Function of Thermistor

3. Control Specification
3.1 Mode Hierarchy
3.2 Frequency Control
3.3 Controls at Mode Changing / Start-up
3.4 Discharge Pipe Control
3.5 Input Current Control
3.6 Freeze-up Protection Control
3.7 Heating Peak-cut Control
3.8 Fan Control
3.9 Liquid Compression Protection Function 2
3.10 Defrost Control
3.11 Low Hz High Pressure Limit
3.12 Electronic Expansion Valve Control
3.13 Malfunctions
3.14 Forced Operation Mode
3.15 Wiring-Error Check
3.16 Additional Function

Part 5 System Configuration
1. System Configuration
1.1 Operation Instructions
2. Instruction
2.1 Manual Contents and Reference Page
2.2 Safety Precautions
2.3 Names of Parts
2.4 Preparation Before Operation
2.5 AUTO • DRY • COOL • HEAT • FAN Operation
2.6 Adjusting the Air Flow Direction
2.7 POWERFUL Operation
2.8 OUTDOOR UNIT SILENT Operation
2.9 ECONO Operation
2.10 HOME LEAVE Operation
2.11 INTELLIGENT EYE Operation
2.12 TIMER Operation
2.13 Note for Multi System
2.14 Care and Cleaning
2.15 Troubleshooting

Part 6 Service Diagnosis
1. Caution for Diagnosis
1.1 Troubleshooting with Operation Lamp
2. Problem Symptoms and Measures
3. Service Check Function
4. Code Indication on the Remote Controller
4.1 Error Codes and Description of Fault
5. Troubleshooting
5.1 Indoor Units
5.2 Outdoor Units
5.3 Indoor Unit PCB Abnormality
5.4 Freeze-up Protection Control or High Pressure Control
5.5 Fan Motor or Related Abnormality
5.6 Thermistor or Related Abnormality (Indoor Unit)
5.7 Shutter Drive Motor / Shutter Limit Switch Abnormality
5.8 Front Panel Open / Close Fault
5.9 Signal Transmission Error (between Indoor and Outdoor Units)
5.10 Unspecified Voltage (between Indoor and Outdoor Units)
5.11 Freeze-up Protection Control
5.12 OL Activation (Compressor Overload)
5.13 Compressor Lock
5.14 DC Fan Lock
5.15 Input Over Current Detection
5.16 Four Way Valve Abnormality
5.17 Discharge Pipe Temperature Control
5.18 High Pressure Control in Cooling
5.19 Position Sensor Abnormality
5.20 CT or Related Abnormality
5.21 Thermistor or Related Abnormality (Outdoor Unit)
5.22 Electrical Box Temperature Rise
5.23 Radiation Fin Temperature Rise
5.24 Output Over Current Detection
5.25 Insufficient Gas
5.26 Low-voltage Detection
5.27 Anti-icing Function in Other Rooms / Unspecified Voltage (between Indoor and Outdoor Units)

6. Check
6.1 How to Check

Part 7 Removal Procedure
1. Outdoor Unit (80 / 90 Class)
1.1 Removal of Outer Panels
1.2 Removal of Propeller Fans
1.3 Removal of Electrical Box
1.4 Removal of PCB
1.5 Removal of Fan Motor
1.6 Removal of Electronic Expansion Valve and Thermistor
1.7 Removal of Sound Blanket and Reactor
1.8 Removal of Shunt
1.9 Removal of Solenoid Valve and Four Way Valve
1.10 Removal of Compressor

2. Outdoor Unit (68 / 75 Class)
2.1 Removal of Outer Panels
2.2 Removal of Electrical BOX
2.3 Removal of PCB
2.4 Removal of Fan Motor
2.5 Removal of Sound Blanket
2.6 Removal of Four Way Valve Coil, Solenoid Valve Coil, Electronic Expansion Valve Coil and Thermistor
2.7 Removal of Four Way Valve, Solenoid Valve and Shunt
2.8 Removal of Solenoid Valve and Shunt
2.9 Removal of Compressor

Part 8 Others
1. Others
1.1 Test Run from the Remote Controller
1.2 Jumper Settings
Part 9 Appendix
1. Piping Diagrams
1.1 Indoor Units
1.2 Outdoor Units

2. Wiring Diagrams
2.1 Indoor Units
2.2 Outdoor Units

Index
Drawings & Flow Charts

Download here

DAIKIN SERVICE MANUAL INVERTER PAIR WALL MOUNTED TYPE H-SERIES
Indoor Units
FTXS30HVJU
FTXS36HVJU

Outdoor Units
RXS30HVJU
RXS36HVJU

Inverter Pair H-Series

Table of Contents

Table of Contents
Part 1
List of Functions
1. List of Functions

Part 2
Specifications
1. Specifications

Part 3
Printed Circuit Board
Connector Wiring Diagram
1. Printed Circuit Board Connector Wiring Diagram
1.1 Indoor Unit
1.2 Outdoor Unit

Part 4
Function and Control
1. Main Functions
1.1 Frequency Principle
1.2 Airflow Direction Control
1.3 Fan Speed Control for Indoor Units
1.4 Program Dry Function
1.5 Automatic Operation
1.6 Thermostat Control
1.7 NIGHT SET Mode
1.8 ECONO Mode
1.9 INTELLIGENT EYE
1.10 Inverter POWERFUL Operation
1.11 Other Functions
2. Function of Thermistor
3. Control Specification
3.1 Mode Hierarchy
3.2 Frequency Control
3.3 Controls at Mode Changing / Start-up
3.4 Discharge PipeTemperature Control
3.5 Input Current Control
3.6 Freeze-up Protection Control
3.7 Heating Peak-Cut Control
3.8 Fan Control
3.9 Liquid Compression Protection Function 2
3.10 Defrost Control
3.11 Electronic Expansion Valve Control
3.12 Malfunctions
3.13 Forced Operation Mode
3.14 Additional Functions
3.15 Facility Setting Switch (cooling at low outdoor temperature)

Part 5
Operation Manual
1. System Configuration
2. Instruction
2.1 Remote Controller
2.2 AUTO · DRY · COOL · HEAT · FAN Operation
2.3 Adjusting the Airflow Direction
2.4 COMFORT AIRFLOW Operation
2.5 INTELLIGENT EYE Operation
2.6 POWERFUL Operation
2.7 OUTDOOR UNIT QUIET Operation
2.8 ECONO Operation
2.9 TIMER Operation
2.10 WEEKLY TIMER Operation

Part 6
Service Diagnosis
1. Caution for Diagnosis
2. Problem Symptoms and Measures
3. Service Check Function
4. Troubleshooting
4.1 Error Codes and Description
4.2 Indoor Unit PCB Abnormality
4.3 Freeze-up Protection Control or High Pressure Control
4.4 Fan Motor (DC Motor) or Related Abnormality
4.5 Thermistor or Related Abnormality (Indoor Unit)
4.6 Signal Transmission Error (between Indoor and Outdoor Unit)
4.7 Unspecified Voltage (between Indoor and Outdoor Units)
4.8 Outdoor Unit PCB Abnormality
4.9 OL Activation (Compressor Overload)
4.10 Compressor Lock
4.11 DC Fan Lock
4.12 Input Overcurrent Detection
4.13 Four-Way Valve Abnormality
4.14 Discharge Pipe Temperature Control
4.15 High Pressure Control in Cooling
4.16 Compressor System Sensor Abnormality
4.17 Position Sensor Abnormality
4.18 CT or Related Abnormality
4.19 Thermistor or Related Abnormality (Outdoor Unit)
4.20 Electrical Box Temperature Rise
4.21 Radiation Fin Temperature Rise
4.22 Output Overcurrent Detection
4.23 Insufficient Gas
4.24 Low-voltage Detection or Over-voltage Detection
4.25 Signal Transmission Error on Outdoor Unit PCB
5. Check
5.1 How to Check

Part 7
Removal Procedure
1. Indoor Unit
1.1 Removal of Air Filter / Front Panel
1.2 Removal of Front Grille
1.3 Removal of Electrical Box
1.4 Removal of PCB
1.5 Removal of Horizontal Blades (Louvers)/Vertical blades(Fins)/Swing Motors
1.6 Removal of Fan Motor
1.7 Removal of Heat Exchanger
1.8 Removal of Fan Rotor
2. Outdoor Unit
2.1 Removal of Outer Panels
2.2 Removal of the Electrical Box
2.3 Removal of PCB
2.4 Removal of Fan Motor
2.5 Removal of Coils / Thermistors
2.6 Removal of Sound Blanket
2.7 Removal of Compressor

Part 8
Other Considerations
1. Other Considerations
1.1 Trial Operation from the Remote Controller
1.2 Jumper Settings
1.3 Application of Silicon Grease to athe Power Transistor and a Diode Bridge .

Part 9
Appendix
1. Piping Diagrams
2. Wiring Diagrams
Index
Drawings & Flow Charts

Download here

DAIKIN SERVICE MANUAL
Inverter Multi F-Series

Cooling Only
Outdoor Unit
2MKS40FV1B
Indoor Unit
FTKS25DVM
FTKS35DVM
FDKS25CAVMB
FDKS35CAVMB
FDKS25EAVMB
FDKS35EAVMB

Heat Pump
Outdoor Unit
2MXS50FV1B
Indoor Unit
FTXS25EVMA
FTXS35EVMA
FDXS25CVMA
FDXS35CVMA
CDXS25EAVMA
CDXS35EAVMA

Table of Contents

Table of Contents
1. Introduction
1.1 Safety Cautions
1.2 Used Icons

Part 1 List of Functions

1. Cooling Only
2. Heat Pump

Part 2 Specifications

1. Cooling Only
1.1 Indoor Units
1.2 Outdoor Units

2. Heat Pump
2.1 Indoor Units
2.2 Outdoor Units

Part 3 Printed Circuit Board Connector Wiring Diagram

1. Printed Circuit Board Connector Wiring Diagram
1.1 Wall Mounted Type
1.2 Duct Connected Type
1.3 Outdoor Unit

Part 4 Function and Control

1. Main Functions
1.1 Frequency Principle
1.2 Power-Airflow Dual Flaps, Wide-Angle Louvers and Auto-Swing
1.3 Fan Speed Control for Indoor Units
1.4 Programme Dry Function
1.5 Automatic Operation
1.6 Thermostat Control
1.7 Night Set Mode
1.8 ECONO Mode
1.9 INTELLIGENT EYE
1.10 HOME LEAVE Operation
1.11 Inverter POWERFUL Operation
1.12 Other Functions
1.13 Function of Thermistor

2. Control Specification
2.1 Mode Hierarchy
2.2 Frequency Control
2.3 Controls at Mode Changing / Start-up
2.4 Discharge Pipe Temperature Control
2.5 Input Current Control
2.6 Freeze-up Protection Control
2.7 Heating Peak-cut Control
2.8 Fan Control
2.9 Liquid Compression Protection Function 2
2.10 Defrost Control
2.11 Electronic Expansion Valve Control ..
2.12 Malfunctions
2.13 Forced Operation Mode
2.14 Additional Function

Part 5 Operation Manual

1. System Configuration
1.1 Operation Instructions

2. Instruction
2.1 Manual Contents and Reference Page
2.2 Safety Precautions
2.3 Names of Parts
2.4 Preparation Before Operation
2.5 AUTODRYCOOLHEATFAN Operation
2.6 Adjusting the Air Flow Direction
2.7 POWERFUL Operation
2.8 OUTDOOR UNIT QUIET Operation
2.9 ECONO Operation
2.10 HOME LEAVE Operation
2.11 MOLD PROOF Operation
2.12 INTELLIGENT EYE Operation
2.13 TIMER Operation
2.14 Note for Multi System
2.15 Care and Cleaning
2.16 Troubleshooting

Part 6 Service Diagnosis

1. Caution for Diagnosis
2. Problem Symptoms and Measures
3. Service Check Function
3.1 Check Method 1
3.2 Check Method 2

4. Troubleshooting
4.1 Error Codes and Description
4.2 Indoor Unit PCB Abnormality
4.3 Freeze-up Protection Control or High Pressure Control
4.4 Fan Motor or Related Abnormality
4.5 Thermistor or Related Abnormality (Indoor Unit)
4.6 Front Panel Open / Close Fault
4.7 Freeze-up Protection Control
4.8 OL Activation (Compressor Overload)
4.9 Compressor Lock
4.10 DC Fan Lock
4.11 Input Over Current Detection
4.12 Discharge Pipe Temperature Control
4.13 High Pressure Control in Cooling
4.14 Compressor Sensor System Abnormality
4.15 Position Sensor Abnormality
4.16 DC Voltage / DC Current Sensor Abnormality
4.17 Thermistor or Related Abnormality (Outdoor Unit)
4.18 Electrical Box Temperature Rise
4.19 Radiation Fin Temperature Rise
4.20 Output Over Current Detection
4.21 Insufficient Gas
4.22 Over-voltage Detection / Low-voltage Detection
4.23 Anti-icing Function in Other Rooms / Unspecified Voltage
(between Indoor and Outdoor Units)
4.24 Outdoor Unit PCB Abnormality or
Signal Transmission Circuit Abnormality

5. Check
5.1 How to Check

Part 7 Removal Procedure

1. Outdoor Unit
1.1 Removal of the Panels and Plates
1.2 Removal of the Electrical Box
1.3 Removal of the PCB
1.4 Removal of the Sound Blanket
1.5 Removal of the Propeller Fan / Fan Motor
1.6 Removal of the Thermistors
1.7 Removal of the Compressor
1.8 Removal of the Four Way Valve ï Electronic Expansion Valve

Part 8 Others

1. Others
1.1 Test Run from the Remote Control
1.2 Jumper Settings
1.3 Application of Silicon Grease to a Power Transistor and a Diode Bridge

Part 9 Appendix

1. Piping Diagrams
1.1 Indoor Units
1.2 Outdoor Units

2. Wiring Diagrams
2.1 Indoor Units
2.2 Outdoor Units

Index

Drawings & Flow Charts

Download here

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