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General| Category | Air Conditioner |
|---|---|
| Model | FDXS12LVJU |
| Series | Super Multi NX |
| Cooling Capacity | 3.5 kW |
| Heating Capacity | 4.0 kW |
| Refrigerant | R32 |
| Operating Temperature Range (Heating) | -15 to 24 °C |
| Power Supply | 220-240V, 50Hz |
Guidelines and precautions for safe repair procedures, covering refrigerant handling, electrical safety, and tool usage.
Important safety instructions for operating and maintaining the air conditioning unit to prevent electrical shock, fire, or injury.
Comprehensive list of features and functions available for different indoor unit models, indicating which functions are included.
Detailed technical data for various indoor unit models, including dimensions, airflow, power, and sound levels.
Technical data for outdoor units, covering compressor type, refrigerant charge, airflow, dimensions, and installation requirements.
Detailed wiring diagrams and connector pinouts for indoor unit PCBs, essential for troubleshooting and component identification.
Wiring diagrams for outdoor unit PCBs, including main PCB, service monitor PCB, MID1, MID2, and SPM connections.
Explanation of primary functions such as temperature control, frequency principles, and airflow direction for optimal operation.
Details on how thermistors (outdoor heat exchanger, discharge pipe, gas pipe, indoor heat exchanger) are used in system control and monitoring.
Technical details on control logic, including mode hierarchy, frequency control, and protection functions for system operation.
Instructions for handling and operating the air conditioner after installation, including user guidance for efficient use.
Detailed operation instructions for specific indoor unit series, covering remote controller functions and operational modes.
Operation instructions for CTXS-L and FTXS-L series indoor units, including remote controller functions and specific modes.
Operation manual for FDXS-D series units, detailing remote controller functions, modes, and settings for user operation.
Operational guidance for CDXS-L and FDXS-L series units, covering remote controller features and various operating modes.
Guide to diagnosing indoor and outdoor unit issues using LED blinking patterns and corresponding error codes.
Table of common operational problems, check items, measurement details, and reference pages for diagnosis and resolution.
Procedures for accessing and interpreting service check codes displayed on ARC452 and ARC433 series remote controllers.
List and description of error codes displayed on the remote controller for indoor and outdoor units, with reference pages.
Detailed troubleshooting steps for specific indoor unit malfunctions, including PCB, fan motor, and thermistor issues.
Troubleshooting guide for outdoor unit faults, covering refrigerant shortage, voltage issues, PCB abnormalities, and compressor problems.
Procedures for checking specific components like thermistors, fan motors, PCB, and capacitors using diagnostic tools and methods.
Step-by-step guide for removing outer panels, electrical box, PCBs, fan motor, and other components from the 2MXS18GVJU outdoor unit.
Procedure for safely disassembling 3MXS24JVJU and 4MXS32GVJU outdoor units, including panel, PCB, and motor removal.
Instructions for performing pump down operation before relocating or disposing of the unit to protect the environment.
Guide to using forced cooling and heating modes for testing and specific operational scenarios, detailing activation and conditions.
Explanation of the wiring error check function for microcomputers to correct wiring and diagnose connection issues.
Steps for conducting trial operation to verify all functions and parts are working correctly after installation.
Procedures for setting parameters like priority room, COOL/HEAT mode lock, and NIGHT QUIET mode during installation.
Instructions for applying silicon grease to power transistors and diode bridges on outdoor unit PCBs for proper heat radiation.
Schematic diagrams illustrating refrigerant flow and piping connections for various indoor unit models.
Detailed wiring diagrams for indoor unit PCBs, showing connections to remote controllers, sensors, and outdoor units.
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