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Toshiba RAS-18UAH-E4 User Manual

Toshiba RAS-18UAH-E4
92 pages
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FILE NO. SVM-05016-1
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
RAS-24NKHD-E4 / RAS-24UAH-E4
RAS-18NKHD-E4 / RAS-18UAH-E4
RAS-24NKD-E4 / RAS-24UA-E4
RAS-18NKD-E4 / RAS-18UA-E4
RAS-24NKD-AR4 / RAS-24UA-AR4
RAS-18N
KD-AR4 / RAS-18UA-AR4
RAS-24NKDX4 / RAS-24UAX4
RAS-18NKDX4 / RAS-18UAX4
RAS-24NKDX4-T / RAS-24UAX3-T1
RAS-18NKDX4-T2 / RAS-18UAX4-T2
18 Class
(Heat pump model)
24 Class18 Class
(Cooling only model)
June 2005

Table of Contents

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Toshiba RAS-18UAH-E4 Specifications

General IconGeneral
Power Supply220-240V, 50Hz
RefrigerantR410A
Weight (Outdoor Unit)32 kg
TypeSplit System
Outdoor Unit Dimensions (W x H x D)780 x 540 mm

Summary

Specifications

Construction Views

Indoor Unit Construction

Detailed diagrams and dimensions for the indoor unit.

Outdoor Unit Construction

Diagrams and dimensions for various outdoor unit models.

Wiring Diagram

Model Specific Wiring Diagrams

Wiring schematics covering various model combinations.

Specification of Electrical Parts

Indoor Unit Electrical Parts

Detailed specifications for indoor unit electrical components.

Outdoor Unit Electrical Parts

Specifications for outdoor unit electrical components.

Refrigeration Cycle Diagram

Model Specific Refrigeration Diagrams

Refrigeration cycle schematics for various model combinations.

Control Block Diagram

Indoor Unit Control Block Diagram

Block diagram illustrating indoor unit control panel functions.

Multi-Model Control Block Diagram

Block diagram for various indoor/outdoor unit control models.

Operation Description

Outline of Air Conditioner Control

General overview of air conditioner control logic.

Description of Operation Circuit

Detailed explanation of different operation modes.

Auto Restart Function

Functionality and setting of the auto restart feature.

Self-Cleaning Function

Description and operation of the self-cleaning function.

Installation Procedure

Safety Cautions

Important safety precautions for installation.

Indoor Unit Installation

Guidelines and diagrams for installing the indoor unit.

Outdoor Unit Installation

Guidelines and diagrams for installing the outdoor unit.

Troubleshooting Chart

Basic Check Items

Essential checks for diagnosing operational issues.

Failure Diagnosis

Interpretation of fault indicators and diagnostic codes.

Self-Diagnosis by Remote Control

Using the remote control for self-diagnosis and error codes.

How To Diagnose Faulty Parts

Step-by-step procedures for diagnosing specific faulty components.

Part Replacement

Indoor Unit Part Replacement

Procedures for replacing indoor unit components.

Outdoor Unit Part Replacement

Procedures for replacing outdoor unit components.

Exploded Views and Parts List

Indoor Unit Exploded View

Illustrated breakdown of indoor unit parts and their identification.

Outdoor Unit Exploded View

Illustrated breakdown of outdoor unit parts and their identification.

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