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Toshiba RAS-M18YACV-E User Manual

Toshiba RAS-M18YACV-E
84 pages
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SERVICE MANUAL
FILE NO. A00-9906
AIR-CONDITIONER
SUPPLEMENT
SPLIT TYPE
PRINTED IN JAPAN, Nov.,1999 ToMo
RAS-M10YKV-E, RAS-M13YKV-E
/
RAS-M18YAV-E
R AS-M10YKCV-E, RAS-M13YKCV-E
/
RAS-M18YACV-E
R410A
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Toshiba RAS-M18YACV-E Specifications

General IconGeneral
BrandToshiba
ModelRAS-M18YACV-E
CategoryAir Conditioner
LanguageEnglish

Summary

Product Specifications

Unit Specifications

Detailed technical specifications for indoor and outdoor units, including capacities, power, noise, and dimensions.

Combined Unit Performance Data

Performance data for cooling and heating when indoor units are combined with others.

Performance Curves and Ratios

Graphs illustrating cooling and heating operation characteristics and capacity variation ratios.

Electrical Data Summary

Detailed electrical specifications, including voltages, currents, and power supply data for cooling.

R410A Refrigerant Handling

Safety During Installation/Servicing

Safety precautions for handling R410A refrigerant during installation and servicing.

Piping Materials and Joints

Details on copper pipes and joints suitable for R410A refrigerant installation.

REFRIGERANT HANDLING TOOLS

Required Installation Tools

Lists tools required for R410A refrigerant handling and installation, including specialized tools.

REFRIGERANT RECHARGING PROCEDURE

Refrigerant Recharging Steps

Step-by-step guide for recharging refrigerant, including vacuum pump usage and charging configuration.

Brazing Materials and Flux Selection

Information on brazing filler materials and the necessity and types of flux for pipe joining.

CONSTRUCTION VIEWS

Indoor Unit Construction

Diagrams and dimensions for the indoor unit, including mounting details.

Outdoor Unit Construction

Diagrams showing dimensions and mounting arrangements for the outdoor unit.

WIRING DIAGRAMS

Indoor Unit Wiring Schematic

Schematic diagram illustrating the electrical connections within the indoor unit.

Outdoor Unit Wiring Schematic

Electrical schematic for the outdoor unit, showing connections for various components.

ELECTRICAL PARTS SPECIFICATIONS

Indoor Unit Electrical Parts

List and specifications of electrical parts used in the indoor unit.

Outdoor Unit Electrical Parts

List and specifications of electrical parts used in the outdoor unit.

REFRIGERANT CYCLE DIAGRAM

Refrigerant Flow and Components

Diagram illustrating the flow of refrigerant through the indoor and outdoor units.

Cooling and Heating Operation Data

Data on operating conditions for cooling and heating modes, including pressures and temperatures.

CONTROL BLOCK DIAGRAMS

Indoor Unit Control Logic

Block diagram showing the control functions and signal flow within the indoor unit.

Outdoor Unit Control Logic

Block diagram illustrating the control logic and components of the outdoor unit.

OPERATION DESCRIPTION

Air Conditioner Control Overview

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

Automatic and Temporary Operation Modes

Details on automatic, temporary auto, and temporary cooling operation modes.

Auto Restart Function Setup

Explanation of how to set up and use the automatic restart function after a power outage.

Remote Control Operation and Features

Explanation of the remote control's buttons, display indications, and functions.

INSTALLATION PROCEDURE

Safety Precautions for Installation

Essential safety precautions and warnings for installing the air conditioner.

Indoor Unit Installation Steps

Steps and guidelines for installing the indoor unit, including placement and hole cutting.

Outdoor Unit Installation Steps

Guidelines for installing the outdoor unit, including placement, piping, and wiring.

TROUBLESHOOTING GUIDE

Initial Confirmation and Power Checks

Initial steps for confirming power supply and voltage before diagnosing issues.

Identifying Normal Operations (Not Troubles)

Identifies specific operations that may appear as issues but are normal programmed functions.

Indoor Unit LED Error Indicators

Interpreting LED indicators on the indoor unit for self-diagnosis of faults.

Remote Control Self-Diagnosis Procedure

Using the remote control to perform self-diagnosis and interpret check codes.

Symptom-Based Troubleshooting Steps

Diagnosing issues based on symptoms, starting with the indoor unit and power.

Wiring and Signal Communication Faults

Diagnosing problems related to wiring, interconnecting cables, and serial signal communication.

Specific Error Code Troubleshooting

Troubleshooting steps for specific error codes (1C, 1E) related to wiring, sensors, and leakage.

Outdoor Unit LED Fault Indicators

Understanding outdoor unit LEDs for diagnosing operational status and faults.

Outdoor Unit Inverter Diagnosis Process

Summarized diagnosis process for the outdoor unit's inverter assembly, including checks for fuses and capacitors.

Checking Major System Components

Procedures for checking key parts like the P.C. board, sensors, and motors for proper function.

Outdoor Fan Motor Testing

Steps to determine if the outdoor fan motor is functional or faulty by checking its windings and resistance.

REPLACEMENT OF MAJOR PARTS

Indoor Unit Part Replacement Procedures

Step-by-step instructions for replacing major parts of the indoor unit, like the front panel and electrical assembly.

Outdoor Unit Part Replacement Procedures

Procedures for detaching and attaching major parts of the outdoor unit, including cabinets and covers.

EXPLODED VIEWS AND PARTS LIST

Indoor Unit Parts Identification

Exploded view diagram and parts list for the indoor unit.

Outdoor Unit Parts Identification

Exploded view diagram and parts list for the outdoor unit.

P.C. Board Component Layouts

Layout diagrams for the P.C. boards used in the outdoor unit, showing sensor connections.

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