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Toshiba RAS-10SK-E User Manual

Toshiba RAS-10SK-E
56 pages
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SERVICE M ANUAL
SPLIT W A LL TY PE
TO SH IBA
P R IN T E D IN J A P A N , M a y .,1 9 9 7 T o M o
FILE NO. A00-9708
AIR-CONDITIONER
RAS-10SK-E
RAS-10SA-E,RAS-10SA-E-1
RAS-10SKX
RAS-10SAX,RAS-10SAX-1

Table of Contents

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Toshiba RAS-10SK-E Specifications

General IconGeneral
BrandToshiba
ModelRAS-10SK-E
CategoryAir Conditioner
LanguageEnglish

Summary

Specifications

Construction Views

Indoor Unit

Visual representation of the indoor unit's components and dimensions.

Outdoor Unit

Visual representation of the outdoor unit's components and dimensions.

Wiring Diagram

Specifications of Electrical Parts

Indoor Unit

Specific electrical parts and their technical details for the indoor unit.

Outdoor Unit

Specific electrical parts and their technical details for the outdoor unit.

Refrigerant Cycle Diagram

Micro-Computer Block Diagram

Operation Descriptions

FAN ONLY Operation

Details on operating the unit in fan-only mode without cooling or heating.

COOL Operation

Explanation of the cooling mode, including fan speed control and temperature settings.

Louver Control

Instructions on how to adjust and control the louvers for airflow direction.

DRY Operation

Description of the dehumidification (dry) mode and its operation.

AUTO Operation

Explanation of the automatic mode, which selects cooling or dry operation.

Temporary Auto

Specific instructions for temporary auto operation settings.

ECONO. Mode

Details on the energy-saving ECONO mode and its operation.

ECONO. Mode - Cooling

How the ECONO mode affects cooling operation settings.

Low-Temperature Limit Control (Cooling Operation)

How the unit prevents freezing in low-temperature cooling conditions.

Auto Restart Function

Explanation of the automatic restart feature after power interruptions.

How to Set the Auto Restart

Step-by-step guide to enable the auto restart function.

How to Cancel the Auto Restart

Instructions on how to disable or cancel the auto restart function.

In Case of Power Failure during the Timer Operation

How power failures affect timer operations and auto restart.

Installation Procedure

Safety Cautions

Essential safety precautions to be followed during installation.

Installation Diagram of Indoor and Outdoor Units

Diagrams showing placement and connection points for indoor and outdoor units.

Installation - Overall

Details on the overall installation process, including required parts.

Optional Parts

List of optional parts required for specific installation scenarios.

Installation Parts

List of standard parts included for installation.

Indoor Unit Installation - General

Installation steps and considerations specifically for the indoor unit.

Cutting a Hole and Mounting Installation Plate

Instructions for creating wall openings and mounting the indoor unit plate.

Electrical Work

Guidelines for electrical connections and power supply requirements.

Wiring Connection (Indoor)

Detailed steps for connecting the wiring between indoor and outdoor units.

Piping and Drain Hose Installation

Instructions for installing refrigerant pipes and the drain hose.

Indoor Unit Installation - Final Steps

Final steps and checks for mounting the indoor unit securely.

Drainage Procedures

Procedures and precautions for ensuring proper water drainage.

Outdoor Unit Installation

Installation guidelines and site selection for the outdoor unit.

Refrigerant Piping Connection

Steps for connecting the refrigerant pipes, including flaring and tightening.

Vacuum Pumping

Process for evacuating air and moisture from the refrigerant lines.

Wiring Connection (Outdoor)

Steps for connecting the electrical wiring to the outdoor unit.

Others - Installation Checks

Additional procedures like gas leak tests and test operations.

Gas Leak Test

Method for checking for refrigerant leaks after installation.

Test Operation

How to perform a test run to confirm proper operation.

Auto Restart Setting

How to enable or configure the auto restart function.

Troubleshooting Chart

What to be Prechecked First

Initial checks to perform before detailed troubleshooting begins.

Power Supply Voltage

Checking if the input voltage meets the required specifications.

Incorrect Cable Connection between Indoor and Outdoor Units

Verifying correct wiring connections between the indoor and outdoor units.

Misleading but Good Operations

Explains normal operations that might be mistaken for faults.

Primary Judgement of Trouble Sources

Initial steps to identify the general area of a fault.

Role of Indoor Unit Controller

Explains the functions and responsibilities of the indoor unit's control system.

Display of Abnormalities and Judgement of the Abnormal Spots

How the unit displays error codes and how to interpret them.

Troubleshooting Flowcharts

Step-by-step flowcharts to diagnose various operational problems.

Power can not be Turned on (No Operation at All)

Troubleshooting flowchart for when the unit does not power on at all.

Power can not be Turned on after Replacing Indoor PC Board

Flowchart for diagnosing power issues after PC board replacement.

Outdoor Unit does not Operate

Troubleshooting flowchart for when the outdoor unit fails to operate.

Only Compressor does not Operate

Flowchart for diagnosing issues when only the compressor is not working.

Only Outdoor Fan does not Operate

Flowchart for diagnosing issues when only the outdoor fan is not working.

Only the Indoor Fan does not Operate

Flowchart for diagnosing issues when only the indoor fan is not working.

How to Check the Remote Control (Including the Indoor PC Board)

Guide to check the functionality of the remote control and indoor PC board.

How to Check the PC Board

Procedures and precautions for inspecting the printed circuit board.

PC Board Layout

Diagrams showing the layout of components on the PC board.

How to Reduce the Operation Time of the Anti-Restart Timer

Method to modify the delay timer for the auto restart function.

Part Replacement

Indoor Unit (RAS-10SK-E, RAS-10SKX)

Procedures for replacing parts within the indoor unit assembly.

Microcomputer (RAS-10SK-E, RAS-10SKX)

Steps for replacing the microcomputer and related components.

Outdoor Unit

Procedures for replacing parts within the outdoor unit assembly.

Cautions on Replacement of PC Board Assembly

Exploded Views and Parts List

Indoor Unit (1)

Exploded view and parts list for the indoor unit, showing component locations.

Outdoor Unit

Exploded view and parts list for the outdoor unit, showing component locations.

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