Related Manuals for Daikin CDXS07LVJU
Summarization of Contents
Safety Cautions
Warnings and Cautions Regarding Safety of Workers
Essential warnings for personnel involved in maintenance and repair work.
Warnings and Cautions Regarding Safety of Users
Important safety precautions for end-users to prevent hazards.
Part 1 List of Functions
1. RA Indoor Unit
Details the functions available for RA type indoor units.
2. SA Indoor Unit
Details the functions available for SA type indoor units.
3. Outdoor Unit
Details the functions available for outdoor units.
Part 2 Specifications
1. RA Indoor Unit
Technical specifications for RA indoor units, including performance and dimensions.
2. SA Indoor Unit
Technical specifications for SA indoor units, including performance and dimensions.
3. Outdoor Unit
Technical specifications for outdoor units, including performance and dimensions.
Part 3 Printed Circuit Board Connector Wiring Diagram
1. Indoor Unit
Wiring diagrams for various indoor unit models' control PCBs.
2. Sensor Kit for FFQ Series
Wiring diagram for the sensor kit used with FFQ series.
3. Wired Remote Controller
Wiring diagram for wired remote controllers.
4. Wireless Remote Controller Receiver for FDMQ series
Wiring diagram for wireless receiver for FDMQ series.
5. Wireless Remote Controller Kit for FFQ Series
Wiring diagram for wireless remote controller kit for FFQ series.
6. Outdoor Unit
Wiring diagram for outdoor unit PCBs.
Part 4 Functions and Control
1. Common Functions
Describes fundamental functions like temperature control and frequency principles.
2. RA Indoor Unit Functions
Details specific functions for RA type indoor units.
2.8 2-Area INTELLIGENT EYE Operation
Explains the dual-zone intelligent eye function for occupant detection.
2.9 INTELLIGENT EYE Operation
Describes the intelligent eye function for occupant detection and energy saving.
2.10 POWERFUL Operation
Details the powerful operation mode for maximum cooling/heating capacity.
2.11 Multi-Monitor Lamp/TIMER Lamp
Explains the function and color codes of the multi-monitor and timer lamps.
2.12 Clock Setting
Provides instructions for setting the clock on the remote controller.
2.13 WEEKLY TIMER Operation
Explains how to set weekly timer schedules for operation.
2.14 Other Functions
Covers other functions like hot-start, signal receiving, and ON/OFF button.
3. SA Indoor Unit Functions
Details specific functions for SA type indoor units.
3.4 Clock and Calendar Setting (With Wired Remote Controller BRC1E73)
Instructions for setting clock and calendar via wired remote controller.
3.5 Schedule TIMER Operation (With Wired Remote Controller BRC1E73)
Instructions for setting schedules via wired remote controller.
3.6 Setback Function (With Wired Remote Controller BRC1E73)
Function to maintain temperature in assigned range for unoccupied periods.
3.7 Drain Pump Control
Describes the operation of the drain pump based on float switch and thermostat.
3.8 Hot Start Control (In Heating Operation Only)
Controls indoor fan at startup to prevent cold air blast during heating.
3.9 Presence and Floor Sensors (Option)
Utilizes sensors for energy saving and comfortable airflow control.
3.10 Other Functions
Covers other functions like signal receiving and auto-restart.
Part 5 Control Specification
4. Control Specification
Details control specifications and thermistor functions.
4.3 Frequency Control
Explains how compressor frequency is determined based on room conditions.
4.4 Controls at Mode Changing/Start-up
Describes control actions during mode changes and start-up.
4.9 Outdoor Fan Control
Details the control logic for the outdoor fan operation.
4.10 Liquid Compression Protection Function
Explains compressor protection against liquid refrigerant.
4.11 Defrost Control
Describes the defrosting process using cooling cycle.
4.12 Low Hz High Pressure Limit
Controls upper frequency limit to prevent high pressure at low frequency.
4.13 Electronic Expansion Valve Control
Details the control logic for the electronic expansion valve.
4.14 Malfunctions
Lists various malfunctions and sensor error detections.
Part 5 Remote Controller
1. Applicable Remote Controller
Lists remote controllers compatible with the system.
2. ARC466A36
Details the features and operation of the ARC466A36 remote controller.
3. ARC452A21
Details the features and operation of the ARC452A21 remote controller.
4. ARC452A23
Details the features and operation of the ARC452A23 remote controller.
5. ARC466A21
Details the features and operation of the ARC466A21 remote controller.
Part 6 Service Diagnosis
1. General Problem Symptoms and Check Items
Lists common problems and initial checks for diagnosis.
2. Troubleshooting with LED
Guides troubleshooting using LED indicators on indoor and outdoor units.
2.2 Outdoor Unit
Troubleshooting outdoor unit issues using LEDs.
3. Service Diagnosis
General service diagnosis procedures.
3.1 RA Indoor Unit
Service diagnosis for RA indoor units.
3.1.1 ARC452 Series Remote Controller
Troubleshooting specific to ARC452 series remote controllers.
3.2 SA Indoor Unit
Service diagnosis for SA indoor units.
5. Troubleshooting for RA Indoor Unit
Troubleshooting common issues for RA indoor units.
5.1 Indoor Unit PCB Abnormality
Diagnosing and resolving indoor unit PCB abnormalities.
6. Troubleshooting for SA Indoor Unit
Troubleshooting common issues for SA indoor units.
6.1 Indoor Unit PCB Abnormality
Diagnosing and resolving SA indoor unit PCB abnormalities.
6.3 Indoor Fan Motor (DC Motor) or Related Abnormality
Troubleshooting DC motor issues for SA indoor units.
6.4 Indoor Fan PCB Abnormality
Troubleshooting indoor fan PCB abnormalities for SA indoor units.
6.5 Humidifier or Related Abnormality
Troubleshooting humidifier issues for SA indoor units.
6.6 Thermistor or Related Abnormality
Troubleshooting thermistor errors for SA indoor units.
6.7 Presence Sensor or Floor Sensor Abnormality
Troubleshooting sensor abnormalities for SA indoor units.
6.8 Remote Controller Thermistor Abnormality
Troubleshooting remote controller thermistor issues.
6.9 Signal Transmission Error (Between Indoor Unit and Remote Controller)
Troubleshooting signal errors between indoor unit and remote controller.
6.10 Signal Transmission Error (Between MAIN Remote Controller and SUB Remote Controller)
Troubleshooting signal errors between main and sub remote controllers.
6.11 Signal Transmission Error (Between MAIN Remote Controller and SUB Remote Controller)
Troubleshooting signal errors between main and sub remote controllers.
6.12 Mismatching of Indoor Unit and Outdoor Unit
Troubleshooting mismatches between indoor and outdoor units.
7. Troubleshooting for Outdoor Unit
Guides troubleshooting for outdoor unit issues.
7.1 Refrigerant Shortage
Troubleshooting refrigerant shortage issues in the outdoor unit.
7.2 Low-voltage Detection or Over-voltage Detection
Troubleshooting voltage detection errors in the outdoor unit.
7.3 Wiring Error Check Unexecuted
Troubleshooting wiring error check execution for the outdoor unit.
7.4 Unspecified Voltage (Between Indoor Unit and Outdoor Unit), Anti-Icing Control in Other Rooms
Troubleshooting voltage issues and anti-icing control in other rooms.
7.5 Anti-Icing Control for Indoor Unit
Troubleshooting indoor unit icing detection and prevention.
7.6 Outdoor Unit PCB Abnormality
Troubleshooting outdoor unit PCB abnormalities.
7.7 OL Activation (Compressor Overload)
Troubleshooting compressor overload conditions.
7.8 Compressor Lock
Troubleshooting compressor lock issues.
7.9 DC Fan Lock
Troubleshooting DC fan lock errors.
7.10 Input Overcurrent Detection
Troubleshooting input overcurrent detection errors.
7.11 Four Way Valve Abnormality
Troubleshooting four way valve abnormalities.
7.12 Discharge Pipe Temperature Control
Troubleshooting discharge pipe temperature control.
7.13 High Pressure Control in Cooling
Troubleshooting high pressure control issues during cooling.
7.14 Compressor Sensor System Abnormality
Troubleshooting compressor sensor system abnormalities.
7.15 Position Sensor Abnormality
Troubleshooting position sensor abnormalities.
7.16 CT or Related Abnormality
Troubleshooting CT or related abnormalities.
7.17 Thermistor or Related Abnormality (Outdoor Unit)
Troubleshooting thermistor abnormalities in the outdoor unit.
7.18 Electrical Box Temperature Rise
Troubleshooting electrical box temperature rise issues.
7.19 Radiation Fin Temperature Rise
Troubleshooting radiation fin temperature rise issues.
7.20 Output Overcurrent Detection
Troubleshooting output overcurrent detection.
8. Check
Procedures for checking various components and systems.
8.1 Thermistor Resistance Check
Procedure for checking thermistor resistance values.
8.2 Indoor Fan Motor Connector Check
Procedure for checking indoor fan motor connector.
8.3 Hall IC Check
Procedure for checking Hall IC functionality.
8.4 Power Supply Waveform Check
Procedure for checking power supply waveform.
8.5 Electronic Expansion Valve Check
Procedure for checking electronic expansion valve operation.
8.6 Four Way Valve Performance Check
Procedure for checking four way valve performance.
8.7 Inverter Unit Refrigerant System Check
Procedure for checking the inverter unit refrigerant system.
8.8 Inverter Analyzer Check
Procedure for checking components using an inverter analyzer.
8.9 Rotation Pulse Check on the Outdoor Unit PCB
Procedure for checking rotation pulse on outdoor unit PCB.
8.10 Installation Condition Check
Checks for proper installation conditions.
8.11 Discharge Pressure Check
Procedure for checking discharge pressure.
8.12 Outdoor Fan System Check
Procedure for checking the outdoor fan system.
8.13 Main Circuit Short Check
Procedure for checking the main circuit for shorts.
8.14 Capacitor Voltage Check
Procedure for checking capacitor voltage.
8.15 Power Module Check
Procedure for checking the power module.
Part 7 Trial Operation and Field Settings
1. Pump Down Operation
Procedure for pump down operation when relocating or disposing the unit.
2. Forced Cooling Operation
Procedure for performing forced cooling operation.
3. Wiring Error Check Function
Function to automatically correct wiring errors.
4. Trial Operation
Procedure for carrying out trial operation of the unit.
4.1 RA Indoor Unit
Trial operation procedure for RA indoor units.
4.2 SA Indoor Unit
Trial operation procedure for SA indoor units.
5. Field Settings
Procedures for configuring field settings on the unit.
5.1 Outdoor Unit
Field settings for the outdoor unit.
5.1.1 Priority Room Setting
Setting the priority room for operation mode and capacity distribution.
5.1.2 COOL/HEAT Mode Lock
Setting the unit for cooling or heating only operation.
5.1.3 NIGHT QUIET Mode
Setting the unit to reduce outdoor noise at nighttime.
5.2 RA Indoor Unit
Field settings for RA indoor units.
5.2.1 Model Type Setting
Setting the model type for the remote controller.
5.2.2 Temperature Display Switch
Switching the temperature display between Fahrenheit and Celsius.
5.2.3 When 2 Units are Installed in 1 Room
Setting addresses when installing two indoor units in one room.
5.2.4 Jumper and Switch Settings
Details jumper and switch settings on indoor unit PCBs.
5.3 SA Indoor Unit
Field settings for SA indoor units.
5.3.1 How to Change the Field Settings
Procedure for changing field settings via remote controller.
5.3.3 Overview of the Field Settings for FDMQ Series
Overview of field settings for FDMQ series.
5.3.4 MAIN/SUB Setting when Using 2 Wired Remote Controllers
Setting MAIN/SUB for two wired remote controllers.
5.3.5 MAIN/SUB and Address Setting for Wireless Remote Controller for FDMQ Series
Setting MAIN/SUB and addresses for wireless remote controllers.
5.3.6 MAIN/SUB and Address Setting for Wireless Remote Controller for FFQ Series
Setting MAIN/SUB and addresses for wireless remote controllers.
6. Silicone Grease on Power Transistor/Diode Bridge
Procedure for applying silicone grease on outdoor unit PCB components.
Part 8 Appendix
1. Piping Diagrams
Visual diagrams illustrating the piping connections.
1.1 Indoor Unit
Piping diagrams for various indoor unit models.
1.2 Outdoor Unit
Piping diagrams for outdoor units.
2. Wiring Diagrams
Visual diagrams illustrating the wiring connections.
2.1 Indoor Unit
Wiring diagrams for indoor units.
2.2 Outdoor Unit
Wiring diagrams for outdoor units.
3. Operation Limit
Details the operational limits for cooling and heating modes.
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