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General| Refrigerant | R410A |
|---|---|
| Cooling Capacity (BTU) | 42000 BTU/hr |
| Heating Capacity (BTU) | 48000 BTU/hr |
| SEER | 16.0 |
| Voltage | 208-230V |
| Phase | Single |
Essential steps before repair, including tool preparation, ventilation, and power disconnection.
Explanation of DIP switch settings (SW1-SW9) for model selection, function configuration, and unit address.
Schematic diagrams illustrating the refrigerant flow and component layout for various outdoor unit models.
Pre-test run checks, safety inspections, and operational procedures for ensuring proper system startup.
Table of check codes, troubles, detected units, and recommended countermeasures for test run abnormalities.
Diagnostic flowcharts for common errors like serial communication failure and compressor issues.
Detailed troubleshooting steps for various error codes related to compressor, sensors, and power supply.
Steps to check and reset error codes displayed on the remote controller, including navigating through screens.
Procedure for performing self-diagnosis on the remote controller to identify malfunctions and reset errors.
Methods for diagnosing malfunctions on PAR-FL32MA and PAR-SL101A-E remote controllers.
Steps to diagnose remote controller issues, including checking display, transmission line, and controller health.
Diagrams and tables showing piping diameters for different connection methods and unit models.
Methodology for calculating and charging additional refrigerant based on liquid pipe size, length, and capacity.
Guidelines to prevent refrigerant leakage and maintain safe concentration levels in rooms.
Methods for checking thermistor resistance and fan motor continuity, including voltage checks.
Procedures for checking solenoid valves, compressor resistance, and linear expansion valves.
Methods for checking power circuit boards, multi-controller circuit boards, and M-NET power circuit boards.
Detailed checks for outdoor noise filter circuit boards and M-NET power circuit boards.
