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General| Brand | Fujitsu |
|---|---|
| Model | Airstage VR-II ARUV30TLAV |
| Category | Air Conditioner |
| Language | English |
Detailed steps and essential precautions for system installation and execution.
Critical inspection items to verify before powering on the system.
Essential verification steps to perform after the system is powered on.
Schematic representation of the refrigerant flow within the system.
Details on compressor operation, including start/stop conditions, speed, capacity, and sequence.
How heat exchanger capacity is managed through operation modes and fan speed.
How the outdoor unit fan speed is controlled during cooling and heating operations.
How the EEV controls refrigerant flow based on operational modes and conditions.
Detailed descriptions of various protective functions to prevent equipment damage.
Protection mechanisms against high discharge temperatures in cooling and heating modes.
Measures to protect the system from excessive high pressure conditions.
Protection measures against excessively low pressure conditions in the system.
Protection against overheating of the heatsink.
Protection against excessive compressor temperature.
Protection against abnormal gas temperatures in heat exchangers.
Protection against excessive current flow to components.
Protection against abnormal operation or stopping of the fan motor and driver.
How to interpret error codes and identify abnormal conditions.
Explanation of the 3-digit error code structure and how to confirm errors.
Error indication flashing patterns for indoor unit main PCB.
7-segment LED patterns and descriptions for outdoor unit error states.
How errors are displayed on various remote controller types.
Cross-reference of error codes with their respective subsection and specific errors.
Diagnostic steps for issues that do not trigger specific error codes.
Classification of system conditions based on outdoor unit errors and their impact.
How to access and view past error codes from the outdoor unit.
Step-by-step troubleshooting procedures for specific error codes like E12.1.
Diagnostic steps for issues that do not trigger specific error codes.
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