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Toshiba RAS-18N3AV-E User Manual

Toshiba RAS-18N3AV-E
110 pages
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R410A
FILE NO. SVM-12070
SERVICE MANUAL
December, 2012
SPLIT TYPE
Indoor Unit Outdoor Unit
RAS-18N3KVR-E RAS-18N3AV-E
RAS-22N3KVR-E RAS-22N3AV-E

Table of Contents

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Toshiba RAS-18N3AV-E Specifications

General IconGeneral
BrandToshiba
ModelRAS-18N3AV-E
CategoryAir Conditioner
LanguageEnglish

Summary

Safety Precautions

General Public Use Safety

Guidelines for power supply cord and general public use.

Installation and Servicing Caution

Precautions for installing and servicing the air conditioner.

Installation Hazards

Critical safety warnings and potential hazards during installation.

Installation Warnings

Warnings regarding installation procedures and potential risks.

Installation Precautions

General precautions to follow during installation work.

Specifications

Unit Specifications

Detailed specifications for indoor and outdoor units, including dimensions.

Operation Characteristic Curves

Graphical representation of cooling and heating operation characteristics.

Capacity Variation Ratio

Charts showing capacity variation based on temperature.

Refrigerant R410A Handling

Installation and Servicing Safety

Safety measures for installation and servicing with R410A refrigerant.

Refrigerant Piping Installation

Guidelines for installing refrigerant piping systems.

Piping Materials and Joints

Details on materials and joints suitable for R410A refrigerant piping.

Piping Material Processing

Procedures for processing piping materials for refrigerant systems.

Tools and Procedures

Required Tools for R410A

List of essential tools required for R410A refrigerant system installation.

Recharging Refrigerant

Step-by-step guide for recharging refrigerant into the system.

Brazing of Pipes

Methods and materials for brazing refrigerant pipes.

Construction Views and Diagrams

Indoor Unit Construction

Detailed construction views of the indoor air conditioning unit.

Outdoor Unit Construction

Detailed construction views of the outdoor air conditioning unit.

Wiring Diagram

Wiring diagram illustrating connections for indoor and outdoor units.

Refrigerant Cycle Diagram

Diagram illustrating the refrigerant flow and components.

Electrical Specifications

Indoor Unit Electrical Parts

Specifications for electrical components of the indoor unit.

Outdoor Unit Electrical Parts

Specifications for electrical components of the outdoor unit.

Operation Control

Control Block Diagram - Indoor Unit

Block diagram showing the control logic for the indoor unit.

Control Block Diagram - Outdoor Unit

Block diagram showing the control logic for the outdoor unit.

Outline of Air Conditioner Control

Overview of the air conditioner's control system and functions.

Operation Description

General Operation Description

Detailed explanation of various operational modes and functions.

Indoor Fan Motor Control

Explanation of how the indoor fan motor speed is controlled.

Outdoor Fan Motor Control

Explanation of how the outdoor fan motor speed is controlled.

Capacity and Current Control

Description of capacity and current release control mechanisms.

Protective Controls

Details on protective controls based on temperature and defrost.

Louver and ECO Operation

Functions for controlling louvers and operating in ECO mode.

Timer and Comfort Operations

Description of temporary, discharge temp, and comfort sleep operations.

Self-Cleaning and Remote Control

Explanation of self-cleaning function and remote controller settings.

Auto Restart Function

Procedure for setting and canceling the auto restart function.

Remote Control Operations

Detailed explanation of remote control operations and indicators.

Installation Procedures

Installation Diagram

Diagram illustrating the installation of indoor and outdoor units.

Optional Parts and Tools

List and details of optional parts, accessories, and tools.

Indoor Unit Installation

Guidelines for selecting the installation place for the indoor unit.

Indoor Unit Mounting and Wiring

Procedures for mounting the installation plate and wiring connections.

Remote Controller Wiring

Instructions for connecting the remote controller via wire.

Piping and Drain Hose Installation

Steps for installing refrigerant piping and drain hoses.

Indoor Unit Fixing and Drainage

Methods for fixing the indoor unit and ensuring proper drainage.

Outdoor Unit Installation Place

Recommended installation locations for the outdoor unit.

Refrigerant Piping Connection

Detailed steps for connecting the refrigerant piping, including flaring.

Evacuating the System

Procedure for evacuating air from the refrigerant system using a vacuum pump.

Outdoor Unit Wiring

Instructions for wiring connections and electrical work on the outdoor unit.

Troubleshooting Guide

Initial Confirmation Checks

Basic checks for power supply, voltage, and normal operations.

Troubleshooting by LED Flashing

Diagnosing faults based on indoor unit LED indicators and check codes.

Self-Diagnosis via Remote Controller

Using the remote controller in service mode for self-diagnosis.

Troubleshooting by Symptoms

Diagnosing issues based on specific symptoms like non-operation or fan problems.

Wiring Failure Troubleshooting

Diagnosing and resolving issues related to interconnecting and serial signal wires.

Check Codes 1C and 1E

Troubleshooting specific check codes related to miswiring and errors.

Air Purifier and Ion Generator Check

Procedures to check the functionality of the air purifier and ion generator.

Outdoor Unit Troubleshooting

Step-by-step guide for diagnosing problems in the outdoor unit.

Checking Main Parts (P.C. Board)

Methods for checking the P.C. board and other main components.

Remote Controller Troubleshooting

Comprehensive troubleshooting guide for the remote controller.

Replacing Main Parts

Indoor Unit Part Replacement

Procedures for detaching and replacing parts of the indoor unit.

Outdoor Unit Part Replacement

Procedures for detaching and replacing parts of the outdoor unit.

Exploded Views and Parts List

Indoor Unit (Part-E) Exploded View

Exploded view and parts list for indoor unit component E.

Indoor Unit Exploded View

Exploded view and parts list for the indoor unit assembly.

Outdoor Unit Exploded View

Exploded view and parts list for the outdoor unit assembly.

Outdoor P.C. Board Layout

Layout of the P.C. board for the outdoor unit (RAS-18N3AV-E).

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