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Toshiba RAS-18SKHP-ES User Manual

Toshiba RAS-18SKHP-ES
84 pages
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February, 2009
FILE NO. SVM-09036
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
RAS-18SKHP-ES / RAS-18S2AH-ES
RAS-24SKHP-ES / RAS-24S2AH-ES
RAS-18SKP-ES / RAS-18SA-ES
RAS-24SKP-ES / RAS-24SA-ES

Table of Contents

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Toshiba RAS-18SKHP-ES Specifications

General IconGeneral
TypeSplit System
Cooling Capacity5.0 kW
Heating Capacity5.5 kW
RefrigerantR32
Energy Efficiency Ratio (EER)3.21
Power Supply220-240V, 50Hz
Coefficient of Performance (COP)3.61
Outdoor Unit Dimensions (W x H x D)780 x 550 x 290 mm
Noise Level (Outdoor)50 dB

Summary

SPECIFICATIONS

CONSTRUCTION VIEWS

2-1. Indoor Unit

Detailed diagrams of the indoor unit's physical structure and dimensions.

2-2. Outdoor Unit

Detailed diagrams of the outdoor unit's physical structure and dimensions.

WIRING DIAGRAM

3-1. RAS-18SKP-ES / RAS-18SA-ES, RAS-24SKP-ES / RAS-24SA-ES

Electrical wiring schematics for specific model series.

3-2. RAS-18SKHP-ES / RAS-18S2AH-ES, RAS-24SKHP-ES / RAS-24S2AH-ES

Electrical wiring schematics for other specific model series.

SPECIFICATION OF ELECTRICAL PARTS

4-1. Indoor Unit (RAS-18SKP-ES, RAS-24SKP-ES)

List of electrical components for indoor units of specific models.

4-2. Outdoor Unit (RAS-18SA-ES)

List of electrical components for a specific outdoor unit model.

4-3. Outdoor Unit (RAS-24SA-ES)

List of electrical components for another specific outdoor unit model.

4-4. Indoor Unit (RAS-18SKHP-ES, RAS-24SKHP-ES)

List of electrical components for indoor units of different models.

4-5. Outdoor Unit (RAS-18S2AH-ES)

List of electrical components for another specific outdoor unit model.

4-6. Outdoor Unit (RAS-24S2AH-ES)

List of electrical components for another specific outdoor unit model.

REFRIGERATION CYCLE DIAGRAM

5-1. RAS-18SKP-ES / RAS-18SA-ES

Diagram illustrating the refrigerant flow for specific models.

5-2. RAS-24SKP-ES / RAS-24SA-ES

Diagram illustrating the refrigerant flow for specific models.

5-3. RAS-18SKHP-ES / RAS-18S2AH-ES

Diagram illustrating the refrigerant flow for specific models.

5-4. RAS-24SKHP-ES / RAS-24S2AH-ES

Diagram illustrating the refrigerant flow for specific models.

CONTROL BLOCK DIAGRAM

6-1. RAS-18SKP-ES / RAS-18S2A-ES, RAS-24SKP-ES / RAS-24S2A-ES

Block diagram showing control signal flow for specific models.

6-2. RAS-18SKHP-ES / RAS-18S2AH-ES, RAS-24SKHP-ES / RAS-24S2AH-ES

Block diagram showing control signal flow for other models.

OPERATION DESCRIPTION

7-1. Remote control

Detailed explanation of the remote control's functions and buttons.

7-1-2. Display of Remote Control

Explanation of the indicators and symbols shown on the remote control display.

7-2. Outline of Air Conditioner Control

Overview of how the indoor and outdoor units control the air conditioner's functions.

7-3. Description of Operation Mode

Explains how the unit operates in different modes like Cooling, Dry, Fan only.

7-4. Description of Safety and Reliability Prevention Function

Details on built-in safety features and operational limits.

7-5. One-Touch Operation

Explanation of the fully automated operation mode for user comfort.

7-6. Hi POWER Operation

Describes the high-power mode for rapid cooling or heating.

7-7. QUIET Operation

Explains the quiet mode for reduced noise levels.

7-8. ECO Operation

Details the energy-saving ECO mode for reduced power consumption.

7-9. COMFORT SLEEP Operation

Describes the comfort sleep mode for optimized temperature and auto shut-down.

7-10. FILTER Check lamp

Information on the filter indicator and how to reset it after cleaning.

7-11. Auto Restart Function

Explains the function that allows the unit to restart after a power failure.

7-12. Self-Cleaning Operation

Describes the operation to clean the unit's interior by running the fan.

INSTALLATION PROCEDURE

8-1. Safety Cautions

Essential safety warnings and precautions for installation.

8-2. Installation Diagram of Indoor and Outdoor Units

Visual guide showing placement and mounting requirements for units.

8-3. Installation

General guidance and parts required for the installation process.

8-3-1. Optional installation parts

List of optional parts required for installation.

8-3-2. Accessory and installation parts

List of included accessories and parts for installation.

3-3-3. Installation/Servicing Tools

Lists tools required for installation and servicing of the unit.

8-4. Indoor Unit

Detailed procedures and considerations for installing the indoor unit.

8-4-1. Installation Place

Guidelines for selecting an appropriate location for the indoor unit.

8-4-2. Drilling a Hole and Mounting Installation Plate

Instructions for drilling holes and mounting the installation plate.

8-4-3. Electrical Work

Guidance on electrical connections and power supply requirements.

8-4-4. Wiring Connection

Steps for connecting the indoor unit's wiring.

8-4-5. Piping and Drain Hose Installation

Instructions for installing refrigerant pipes and drain hoses.

8-4-6. Indoor Unit Installation

Procedures for physically mounting the indoor unit onto the installation plate.

8-4-7. Drainage

Instructions for ensuring proper drainage from the indoor unit.

8-5. Outdoor Unit

Detailed procedures and considerations for installing the outdoor unit.

8-5-1. Installation place

Guidelines for selecting an appropriate location for the outdoor unit.

8-5-2. Refrigerant piping connection

Detailed steps for connecting the refrigerant pipes.

8-5-3. Evacuating

Procedures for evacuating air from the refrigerant system.

8-5-4. Wiring connection

Steps for connecting the outdoor unit's wiring to the indoor unit.

8-6. Test Operation

Procedures for initial testing and setup after installation.

8-6-1. Gas Leak Test

Procedure to check for refrigerant leaks after installation.

8-6-2. Test Operation

Steps to perform initial testing of the installed unit.

8-6-3. Auto Restart Setting

Instructions on how to configure the auto-restart function.

8-6-4. Remote Controller A or B Selection

Guide for setting remote control mode when multiple units are present.

TROUBLESHOOTING CHART

9-1. Troubleshooting Procedure

General steps for diagnosing issues with the air conditioner.

9-2. Basic Check Items

Initial checks to perform before detailed troubleshooting.

9-3. Primary Judgement

Guide for initial diagnosis based on unit behavior and indicators.

9-4. Self-Diagnosis by Remote Controller (Check Code)

Using the remote control to access diagnostic codes for fault identification.

9-5. How To Diagnose Faulty Parts

Flowcharts and guidance for diagnosing specific faulty components.

9-6. Troubleshooting for Indoor unit

Specific troubleshooting steps for indoor unit problems.

9-7. Troubleshooting for Wiring (Interconnect cable and Serial Signal Wire)

Steps to diagnose issues related to wiring and signal transmission.

9-8. Troubleshooting for P.C. board

Procedures for checking and diagnosing the main control boards.

9-9. Troubleshooting for Remote Control

Steps to diagnose and resolve issues with the remote controller.

HOW TO REPLACE THE MAIN PARTS

10-1. Indoor Unit

Step-by-step instructions for replacing parts of the indoor unit.

10-2. Outdoor Unit

Step-by-step instructions for replacing parts of the outdoor unit.

EXPLODED VIEWS AND PARTS LIST

11-1. Indoor Unit (E-Parts Assy)

Exploded view and parts list for the indoor unit's electrical assembly.

11-2. Indoor Unit

Exploded view and parts list for the indoor unit's main components.

11-3. Outdoor Unit (RAS-18SA-ES, RAS-24SA-ES)

Exploded view and parts list for specific outdoor unit models.

11-4. Outdoor Unit (RAS-18S2AH-ES, RAS-24S2AH-ES)

Exploded view and parts list for other outdoor unit models.

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