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Toshiba RAS-18SKV-E User Manual

Toshiba RAS-18SKV-E
109 pages
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R410A
FILE NO. A07-008
SERVICE MANUAL
SPLIT TYPE
Indoor Unit
<High Wall, Heat PumpType>
RAS-18SKV-E
RAS-22SKV-E
RAS-18SKVR-E
RAS-22SKVR-E
Printed in Japan, Feb., 2008
Outdoor Unit
<Heat PumpType>
RAS-18SAV-E
RAS-22SAV-E

Table of Contents

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Toshiba RAS-18SKV-E Specifications

General IconGeneral
Cooling Capacity5.0 kW
Power Supply220-240V, 50Hz
RefrigerantR410A
Energy Efficiency Ratio (EER)3.21
Coefficient of Performance (COP)3.61
Indoor Unit Weight9 kg
Outdoor Unit Weight34 kg
TypeSplit
Noise Level (Outdoor)50 dB(A)

Summary

Safety Precautions

Refrigerant R410A Handling and Safety

Piping Material Processing

R410A Installation Tools

Recharging Refrigerant R410A

Brazing Process for Pipes

Wiring Diagram and Connections

Wiring Diagram for Various Models

Schematic wiring diagram for various indoor and outdoor unit models covered by the manual.

Refrigerant Cycle Diagrams

Refrigerant Cycle Diagram (RAS-22 Series)

Control System Block Diagrams

Indoor Unit Control Logic (SKVR Models)

Outdoor Unit Control Logic Diagram

Defrost Control in Heating Mode

Installation Procedures Overview

Unit Installation Diagram

Visual guide showing the placement and connection of indoor and outdoor units during installation.

Indoor Unit Installation Guide

Indoor Unit Installation Location Selection

Guidelines for selecting an appropriate installation place for the indoor unit, considering space and airflow.

Drilling Hole and Mounting Installation Plate

Instructions for drilling holes and mounting the installation plate for the indoor unit.

Indoor Unit Electrical Work

Indoor Unit Wiring Connection

Step-by-step guide on how to connect the wiring cable to the indoor unit.

Indoor Unit Piping and Drain Hose Installation

Indoor Unit Mounting Procedures

Indoor Unit Condensation Drainage

Instructions for ensuring proper drainage of condensation from the indoor unit.

Outdoor Unit Installation Guide

Outdoor Unit Installation Location Selection

Guidelines for selecting an appropriate installation place for the outdoor unit, considering wind and obstructions.

Outdoor Unit Defrost Water Draining

Refrigerant Piping Connection Procedures

Detailed steps for connecting refrigerant pipes, including flaring and tightening procedures.

System Evacuating Procedure

Outdoor Unit Wiring Connection

Test Operation Procedures

Performing Gas Leak Test

Procedure to check for gas leaks at flare nut connections using a detector or soapy water.

Conducting System Test Operation

How to perform a system test by pressing the RESET button for 10 seconds.

Troubleshooting Guide and Procedures

Inverter Safety and Handling Precautions

Important safety warnings and precautions when working with the 3DV inverter system.

Initial Troubleshooting: Confirmations

Remote Controller Self-Diagnosis (Check Codes)

Servicing Cautions and Procedures

Troubleshooting by Symptom Analysis

Indoor Unit Troubleshooting by Symptom

Troubleshooting: No Indoor Fan Motor Operation

Troubleshooting: Fan Motor Auto-Rotation

Troubleshooting: Remote Controller Problems

Wiring Failure Diagnosis (Interconnect/Serial Signal)

Diagnosis: Check Codes 18 and 1E

Troubleshooting Specific Components

Air Purifier Component Troubleshooting

Procedure to check the functionality of the air purifier and its components.

Minus Ion Generator Component Troubleshooting

Outdoor Unit Troubleshooting Guide

Outdoor Unit Inverter Assembly Diagnosis

Diagnostic flowchart for the inverter assembly, covering fuse, capacitors, and motor checks.

Main Parts Checking Procedures

Indoor Unit P.C. Board Checking

Precautions and procedures for checking the main P.C. board of the indoor unit.

Indoor Unit Other Parts Checking

Checking Specific Components (Capacitors, Diodes)

Outdoor Fan Motor Condition Check

Main Parts Replacement Procedures

Indoor Unit High Voltage Generator Replacement

Indoor Unit Electric Parts Box Replacement

Indoor Unit Louver and Evaporator Replacement

Indoor Unit Bearing Replacement

Indoor Unit Fan Motor Replacement

Indoor Unit Cross Flow Fan Reassembly

Microcomputer Replacement Procedure

Outdoor Unit Parts Replacement Steps

Outdoor Unit Front Cabinet Removal/Attachment

Outdoor Unit Inverter Assembly Replacement

Outdoor Unit Control Board Replacement

Outdoor Unit Side Cabinet Replacement

Outdoor Unit Fan Motor Replacement

Outdoor Unit Compressor/Reactor Replacement

Outdoor Unit Expansion Valve Coil/Fan Guard Replacement

Outdoor Unit Sensor Replacement Procedures

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