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General| Brand | Toshiba |
|---|---|
| Model | RAS-18UAX4 |
| Category | Air Conditioner |
| Language | English |
Detailed diagrams and dimensions of the indoor unit.
Diagrams and dimensions for specific outdoor unit models.
Diagrams and dimensions for the RAS-18UAH-E4 outdoor unit.
Diagrams and dimensions for specific outdoor unit models.
Electrical wiring schematic for specific indoor/outdoor unit models.
Electrical wiring schematic for specific indoor/outdoor unit models.
Wiring schematics for various RAS-24 NKD/UA models.
Electrical wiring schematic for specific indoor/outdoor unit models.
Wiring schematics for various RAS-18 NKD/UA models.
Electrical wiring schematic for specific indoor/outdoor unit models.
Detailed specifications for electrical components of specific indoor units.
Detailed specifications for electrical components of the RAS-24UAH-E4 outdoor unit.
Detailed specifications for electrical components of the RAS-18UAH-E4 outdoor unit.
Component specs for various RAS-24/18 NKD indoor units.
Component specifications for RAS-24UA-E4, RAS-24UAX4, RAS-24UAX3-T1 outdoor units.
Component specifications for the RAS-24UA-AR4 outdoor unit.
Component specifications for RAS-18UAX4 and RAS-18UA-E4 outdoor units.
Component specifications for the RAS-18UA-AR4 outdoor unit.
Component specifications for the RAS-18UAX4-T2 outdoor unit.
Diagram illustrating the refrigeration cycle for specific models.
Diagram illustrating the refrigeration cycle for specific models.
Refrigeration cycle diagrams for various RAS-24 NKD/UA models.
Refrigeration cycle diagrams for various RAS-18 NKD/UA models.
Diagram illustrating the refrigeration cycle for specific models.
Diagram illustrating the refrigeration cycle for specific models.
Diagram illustrating the refrigeration cycle for specific models.
Block diagram illustrating the control system for specific models.
Block diagram for various RAS-18 and RAS-24 models.
Explains the basic operation and control flow of the AC unit.
Details the vertical air flow louver control and swing function.
Explains the stepless speed change and five-step fan speed control.
Details circuit functions and operational logic for different modes.
Describes fan operation when the mode is set to Fan Only.
Controls for compressor, 4-way valve, outdoor fan in cooling mode.
Operation of compressor, fan, and lamps in Dry mode.
Controls for compressor, fan, and lamps in Heating mode.
Automatic selection of Cooling, Fan only, or Heating modes.
How to operate the Plasma Air-Purifier with other modes.
Explains the function and operation of the Hi POWER mode.
How the unit prevents overheating during operation.
Function to prevent indoor heat exchanger freezing.
Details the defrost cycle in heating mode for heat pump models.
Conditions that trigger the start of the defrost cycle.
Conditions that determine when the defrost cycle ends.
Instructions on how to set the automatic restart function after power failure.
Step-by-step guide to enable the auto restart feature.
Procedures to disable the auto restart function.
Explains the filter check indicator and its reset procedure.
Steps to reset the filter check lamp after cleaning.
Describes the function to reduce indoor humidity and prevent mold.
Procedures to disable the self-cleaning function.
Step-by-step guide to enable the self-cleaning function.
Explains the mode for reduced noise and lower fan speed.
Describes the mode for quietness and energy saving by adjusting temperature.
Comfort sleep operation details for cooling mode.
Comfort sleep operation details for heating mode.
Important safety precautions to follow during installation.
Visual guide for positioning and connecting indoor and outdoor units.
Further details on installation layout and piping connections.
Overview of installation steps and optional parts.
List and description of optional parts required for installation.
List of accessories and installation components included with the unit.
Specific guidance for installing the indoor unit.
Guidelines for selecting an appropriate location for the indoor unit.
Steps for cutting wall holes and mounting the installation plate.
Detailed instructions for mounting the indoor unit installation plate.
Instructions for performing electrical wiring for the indoor unit.
Cautions and notes regarding electrical work for the indoor unit.
Steps for connecting the power supply and interconnect cables.
Detailed procedure for connecting the indoor unit's wiring.
Instructions for routing and connecting refrigerant piping and drain hose.
Specific techniques for bending pipes and managing drain hose.
Steps for securely mounting the indoor unit onto the installation plate.
Instructions for ensuring proper drainage and preventing dew-dropping.
Specific guidance for installing the outdoor unit.
Guidelines for selecting an appropriate location for the outdoor unit.
Steps for connecting refrigerant pipes, including flaring and tightening.
Specifics on pipe cutting, flaring dimensions, and tightening torque.
Procedure for removing air from the system using a vacuum pump.
Steps for connecting power supply and interconnect cables to the outdoor unit.
Instructions for setting the remote control selector switch for multiple units.
Covers additional installation tasks like gas leak testing.
Method for checking the system for refrigerant leaks.
How to activate the test run mode for checking functionality.
How to enable the unit's auto restart feature after power failure.
General steps for diagnosing and resolving issues.
Initial checks for common operational problems.
Verifying the supply voltage is within the operational range.
Ensuring proper connection of cables between indoor and outdoor units.
Checking unit behavior against programmed operations.
Guidance on interpreting symptoms and initial fault diagnosis.
Describes the functions and responsibilities of the indoor unit controller.
Interpreting indicator lamp status for self-diagnosis.
How to use the remote control for self-diagnosis and check codes.
Step-by-step guide to enter and navigate the remote control service mode.
Detailed table correlating check codes with symptoms and actions.
Flowcharts to identify defective parts based on symptoms.
Diagnostic flowcharts for various cycle errors in heat pump models.
Diagnostic flowcharts for additional cycle errors.
Troubleshooting steps for indoor TA sensor errors.
Troubleshooting steps for indoor TC sensor errors.
Troubleshooting steps for outdoor TE sensor errors in heat pump models.
Troubleshooting steps for outdoor TD sensor errors in heat pump models.
Troubleshooting steps for discharge temperature errors in heat pump models.
Comprehensive guide for troubleshooting indoor unit issues.
Steps for diagnosing why the unit does not turn on at all.
Troubleshooting steps when only the indoor fan fails to operate.
Steps to diagnose why the compressor is not operating.
Specific inspection procedures for compressor issues in cooling mode.
Specific inspection procedures for compressor issues in heating mode.
Diagnosing issues related to wiring connections.
Verifying voltage and signal transmission for outdoor unit operation.
Troubleshooting steps for when the outdoor unit stops and restarts.
Troubleshooting steps for the air purifier and ionizer functions.
Steps to verify the air purifier's operational status.
Steps to verify the functionality of the minus ion generator.
General procedures for checking and diagnosing P.C. board issues.
Detailed steps for inspecting the indoor P.C. board for defects.
Table outlining inspection steps, check points, and causes for P.C. board issues.
Procedure to reduce the delay time for the restart function.
How to set or cancel the self-cleaning function.
Steps to diagnose and resolve problems with the remote control.
Detailed instructions for removing and replacing indoor unit parts.
Further procedures for replacing indoor unit components like fan motor.
Procedures for replacing parts in specific outdoor units.
Procedures for replacing parts in the RAS-18UAH-E4 outdoor unit.
Procedures for replacing parts in specific outdoor units.
Exploded view and parts list for indoor unit E-Parts Assembly.
Exploded view and parts list for indoor unit components.
Exploded view and parts list for the RAS-24UAH-E4 outdoor unit.
Exploded view and parts list for the RAS-18UAH-E4 outdoor unit.
Exploded views/parts lists for RAS-24UA-E4, RAS-24UAX4, RAS-24UAX3-T1.
Exploded view and parts list for the RAS-24UA-AR4 outdoor unit.
Exploded view and parts list for the RAS-18UAX4-T2 outdoor unit.
Exploded views/parts lists for RAS-18UA-E4 and RAS-18UAX4.
Exploded view and parts list for the RAS-18UA-AR4 outdoor unit.
