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Important safety precautions, including DANGER, WARNING, and CAUTION statements.
Safety precautions for handling R410A refrigerant during installation and service.
Procedure for recharging the system with the specified amount of refrigerant.
Technical specifications for the Hydro unit, including dimensions and electrical characteristics.
Technical specifications for the Outdoor unit, including dimensions and electrical characteristics.
Detailed wiring diagram for the Hydro unit, showing connections and components.
Detailed wiring diagram for the Outdoor unit, showing connections and components.
List of key electrical components for the Hydro unit with their ratings and specifications.
List of key electrical components for the Outdoor unit with their ratings and specifications.
Detailed explanation of various operation modes and their control logic.
Control functions and operations specific to the Hydro unit.
Control functions and operations specific to the Outdoor unit.
Initial checks for power supply, wiring, and sensor installation.
Identifying normal operations that may appear as symptoms of defects.
Overview of the defect diagnosis procedure using check codes.
Flowcharts for diagnosing specific error codes.
Procedure for performing test runs of heating, cooling, and hot water operations.
Function to prevent pipe freezing when the unit is unused for extended periods.
Setting to prevent bacteria growth by raising hot water cylinder temperature periodically.
Function to prioritize hot water supply operation for quick heating or large volumes.
Activating the forced defrosting mode for the outdoor unit.
Function to view and reset the list of latest 10 alarm data.
Procedure for environment-friendly refrigerant recovery (pump down) when replacing the outdoor unit.
Special operations for maintenance and inspection using SW801 and SW804.
Instructions for replacing the service PC board, including jumper and DIP switch settings.
Procedures for replacing main parts of the Hydro unit, including front panel and covers.
Procedure for replacing the control board.
Procedure for replacing the compressor and its lead.
Schedule and details for periodic inspections of the Hydro unit.
Schedule and details for periodic inspections of the Outdoor unit.
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General