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Details important safety warnings and cautions for installation and operation.
Explains system components, operation, and basic principles.
Provides an overview of the outdoor unit and identifies its main components.
Details the outdoor control and module PCBs and their connections.
Describes the terminal block, compressor, fan motor, and power factor reactor.
Details various temperature sensors and the oil separator in the outdoor unit.
Explains the function of the 4-way valve, accumulator, and EEV.
Introduces the indoor unit and identifies its main components.
Details the indoor unit's control board, connectors, and DIP switches.
Covers the indoor unit's terminal block, status display, and sensors.
Describes the fan motor, louver motors, and the emergency operation button.
Explains system power supply and the sequence of operation during cooling mode.
Details heating mode, defrost cycles, and freeze protection functions.
Covers auto, dry operation modes and critical protection functions.
Explains Auto Restart, Timed Defrost, SmartHQ, and Estar6.1 features.
Presents detailed technical data, capacity, and performance metrics for models.
Provides initial checks and flowcharts for outdoor and indoor unit issues.
Guides through diagnosing and resolving common error codes like IPM, compressor, and communication faults.
Details troubleshooting for sensor failures, fan motor faults, and overheat protection.
Groups compressor sync, EEPROM, and communication error troubleshooting.
Groups coil frost protection, indoor fan motor failure, and other operational issues.
Outlines methods to test outdoor and indoor unit components like sensors, motors, and coils.
Provides detailed wiring diagrams for outdoor and indoor units.
Compiles sensor resistance values and operational specifications.