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Toshiba RAS-18S2A-E User Manual

Toshiba RAS-18S2A-E
73 pages
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Revised May, 2008
FILE NO. SVM-08032-1
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
24 Class18 Class
RAS-18SKPX / RAS-18S2AX
RAS-24SKPX / RAS-24S2AX
RAS-18SKPX-V / RAS-18S2AX-V
RAS-18SKP-E / RAS-18S2A-E
RAS-24SKP-E / RAS-24S2A-E

Table of Contents

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Toshiba RAS-18S2A-E Specifications

General IconGeneral
BrandToshiba
ModelRAS-18S2A-E
CategoryAir Conditioner
LanguageEnglish

Summary

INSTALLATION PROCEDURE

Safety Cautions

Precautions to be taken before installation.

Installation Diagram

Visual guide for installing indoor and outdoor units.

Installation Steps

General installation steps.

Indoor Unit Installation

Specific installation details for the indoor unit.

Outdoor Unit Installation

Specific installation details for the outdoor unit.

Test Operation

Procedures for testing the unit after installation.

TROUBLESHOOTING CHART

Troubleshooting Procedure

General steps for troubleshooting.

Basic Check Items

Essential checks before deeper diagnosis.

Primary Judgement

Initial diagnosis based on symptoms.

Self-Diagnosis by Remote Control

Using remote control for fault diagnosis.

Troubleshooting for Indoor Unit

Specific troubleshooting for the indoor unit.

Troubleshooting for Wiring

Diagnosing issues related to wiring connections.

Troubleshooting for P.C. Board

Troubleshooting the main circuit board.

Troubleshooting for Remote Control

Diagnosing problems with the remote control.

PARTS REPLACEMENT

Indoor Unit Parts

Parts replacement for the indoor unit.

Outdoor Unit Parts (18 Class)

Parts for specific outdoor units.

Outdoor Unit Parts (24 Class)

Parts for specific outdoor units.

EXPLODED VIEWS AND PARTS LIST

Indoor Unit (E-Parts Assy)

Exploded view of indoor unit parts.

Indoor Unit Parts List

Parts list for the indoor unit.

Outdoor Unit Parts List (18 Class)

Parts list for specific outdoor units.

Outdoor Unit Parts List (24 Class)

Parts list for specific outdoor units.

SPECIFICATIONS

CONSTRUCTION VIEWS

Indoor Unit Construction

Detailed construction view of the indoor unit.

Outdoor Unit (18 Class) Construction

Outdoor Unit (24 Class) Construction

WIRING DIAGRAM

Wiring Diagram (18 Class Models)

Wiring diagram for specific 18 Class models.

Wiring Diagram (24 Class Models)

SPECIFICATION OF ELECTRICAL PARTS

Indoor Unit Electrical Parts

Electrical parts specification for indoor units.

Outdoor Unit Electrical Parts (18 Class)

Electrical parts specification for outdoor units.

Indoor Unit Electrical Parts (24 Class)

Outdoor Unit Electrical Parts (24 Class)

REFRIGERATION CYCLE DIAGRAM

Refrigeration Cycle Diagram (18 Class Models)

Refrigeration cycle diagram for specific 18 Class models.

Refrigeration Cycle Diagram (24 Class Models)

CONTROL BLOCK DIAGRAM

OPERATION DESCRIPTION

Remote Control

Description of the remote control functions.

Outline of Air Conditioner Control

Overview of the air conditioner's control system.

Description of Operation Mode

Explains different operating modes of the unit.

Safety and Reliability Prevention Function

One-Touch Operation

Hi POWER Operation

QUIET Operation

ECO Operation

COMFORT SLEEP Operation

FILTER Check lamp

Auto Restart Function

Self-Cleaning Operation

Installation

Optional installation parts

Lists and describes optional parts for installation.

Accessory and installation parts

Indoor Unit

Installation Place

Recommended locations for installing the indoor unit.

Drilling a Hole and Mounting Installation Plate

Guides on drilling and mounting the installation plate.

Electrical Work

Wiring Connection

Piping and Drain Hose Installation

Indoor Unit Installation

Drainage

Outdoor Unit

Installation place

Recommended locations for installing the outdoor unit.

Refrigerant piping connection

Evacuating

Wiring connection

Test Operation

Gas Leak Test

Procedure to test for gas leaks.

Test Operation

Steps for performing the system test.

Auto Restart Setting

How to set the auto restart function.

Remote Controller A or B Selection

Setting for remote control selection.

Self-Diagnosis by Remote Controller (Check Code)

Troubleshooting for Indoor unit

Compressor does not operate.

Troubleshooting for Wiring (Interconnect cable and Serial Signal Wire)

Troubleshooting for P.C. board

How to check indoor P.C. board

Procedure to check the indoor P.C. board.

How to shorten time of restart delay timer

How to set/cancel self cleaning function

Troubleshooting for Remote Control

HOW TO REPLACE THE MAIN PARTS

Indoor Unit

Procedures for replacing indoor unit parts.

Outdoor Unit (RAS-18S2AX, RAS-18S2AX-V, RAS-18S2A-E)

Outdoor Unit Parts Replacement (18 Class)

Procedures for replacing outdoor unit parts.

Outdoor Unit (RAS-24S2AX, RAS-24S2A-E)

Outdoor Unit Parts Replacement (24 Class)

Procedures for replacing outdoor unit parts.

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