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General| Brand | Fujitsu |
|---|---|
| Model | Airstage VR-II ARUV48TLAV |
| Category | Air Conditioner |
| Language | English |
Detailed steps and precautions for performing system installation and preparation.
Checklist for essential items to verify before powering on the VRF system for the first time.
Procedures and checks to be performed after the system has been powered on.
Methods for conducting test runs using outdoor unit PC board and remote controllers.
Diagram and description of the refrigerant circuit for outdoor and indoor units.
Details on compressor operation, including start/stop conditions and speed control.
Procedures for special operations like oil recovery, pre-heat, defrost, and low noise modes.
Detailed description of various protective functions and their operational responses.
Explanation of fan speed settings and auto mode operation for indoor units.
Master control logic, including mode settings, priority modes, and auto changeover operations.
Procedures for diagnosing and resolving abnormal system operations using error codes.
Explanation of error code structure and how to interpret them across various components.
Comprehensive index of error codes, their descriptions, and troubleshooting steps.
Step-by-step troubleshooting guides for specific error codes.
Diagnostic procedures for troubleshooting issues without specific error codes.
Procedures for backup operation, including compressor replacement and refrigerant handling.
Diagrams and descriptions of the refrigerant circuit for various models.
Detailed procedure for compressor removal, including safety precautions and component access.
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