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General| Brand | Hitachi |
|---|---|
| Model | RAS-4.0TNESNH1 |
| Category | Air Conditioner |
| Language | English |
Covers installation steps and an overview of the controller's features.
Details wireless remote functions, indicators, and usage.
Guide for setting up and using the IR receiver.
Explains fault code indications on remote, indoor, and outdoor units.
Details fault codes, LED indicators, and troubleshooting for outdoor units.
Details fault codes and troubleshooting for indoor units.
Lists fault codes specific to the drive system.
Describes how to check the refrigerant system using pressure gauges.
Covers resistance and voltage testing for fuses, capacitors, and motors.
Steps for disassembling and assembling outdoor unit motors and compressors.
Steps for removing and assembling indoor unit fan motors for various types.
Explains fan speed control logic in different operating modes.
Details compressor operation rules and auto mode selection criteria.
Describes protection mechanisms for evaporator low-temp and condenser high-temp.
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