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General| Brand | Hitachi |
|---|---|
| Model | RAC-50WPB |
| Category | Air Conditioner |
| Language | English |
Defines the applicability of the standards for handling semiconductors.
Lists the components covered by the standards, including microcomputers and ICs.
Details the procedures for safe handling of semiconductor parts.
Instructions for inserting batteries into the remote control.
Steps for mounting the remote control holder securely.
Procedure for setting the unit's current time and date.
Guidelines for proper use and placement of the remote controller.
Describes how the unit automatically selects operation modes.
Initial setup procedures for the remote controller.
Procedure for setting the unit's current time and date.
Details remote controller buttons, features, and operations.
Details the components and parts of the indoor unit.
Details the components and parts of the outdoor unit.
Instructions for cleaning the air filter to maintain performance.
Steps for cleaning the unit's front panel.
Procedures for maintaining the unit during long periods of non-operation.
Describes the unit's heating, cooling, and dehumidifying features.
Routine checks for unit health and safety.
Guidance for service, warranty claims, and contact information.
Diagrams and dimensions for indoor units.
Diagrams and dimensions for outdoor units.
Technical data for thermostat components.
Details on fan motor specifications and connection.
Key electrical parts for outdoor units, including reactors.
Technical data for the compressor motor and its resistance values.
Electrical connection schematics for various models.
Diagram of refrigerant flow during cooling operation.
Diagram of refrigerant flow during heating operation.
Steps to disassemble indoor unit components.
Procedures for removing electrical parts from the outdoor unit.
Steps for removing the tangential fan and fan motor.
Explanation of the control power circuit's function.
Guidelines for inspecting the unit for potential issues.
Steps to remove electrical components from the indoor unit.
Procedure to remove the control circuit board.
Procedure to remove the indicator circuit board.
Interpreting indoor unit self-diagnosis indicators.
Interpreting outdoor unit self-diagnosis indicators.
How to access and manage stored failure data.
Overview of the process for checking indoor unit electrical parts.
Initial steps for diagnosing issues with indoor unit electrical parts.
Important warnings regarding remote signal reception issues.
Steps to diagnose remote control signal reception problems.
Potential causes of signal interference with remote control.
Identifying installation factors that may cause jamming.
Specific checks to identify sources of interference.
Recommended solutions for addressing signal interference.
How lighting equipment affects remote signal reception.
Condition when the compressor fails to run.
Possible causes for compressor failure.
Diagnostic steps for compressor issues.
Potential causes for the fan motor not stopping.
Diagnostic steps for fan motor issues.
Warnings related to terminal board replacement.
Diagnostic steps for timer lamp blinking three times.
Condition indicating 9 timer lamp blinks.
Possible causes for 9 timer lamp blinks.
Warnings about failure detection initiation.
Diagnostic steps for 9 timer lamp blinks.
Condition indicating 10 timer lamp blinks.
Possible causes for 10 timer lamp blinks.
Diagnostic steps for 10 timer lamp blinks.
Possible causes for 12 timer lamp blinks.
Warnings about F cable connection.
Diagnostic steps for 12 timer lamp blinks.
Condition indicating 13 timer lamp blinks.
Possible causes for 13 timer lamp blinks.
Diagnostic steps for 13 timer lamp blinks.
Method to diagnose gas leaks or compressor issues.
Parts breakdown and list for RAK-18/25PPB indoor units.
Parts list for RAK-35/50PPB indoor units.
Parts breakdown and list for RAC-18/25WPB outdoor units.
Parts list for RAC-35/50WPB outdoor units.
