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Toshiba RAS-10N3KV-E User Manual

Toshiba RAS-10N3KV-E
92 pages
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FILE NO. SVM-12029
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
August, 2012
RAS-10N3KV-E / RAS-10N3AV-E
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Table of Contents

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Toshiba RAS-10N3KV-E Specifications

General IconGeneral
TypeSplit System
Cooling Capacity2.5 kW
Heating Capacity3.2 kW
Power Supply220-240V, 50Hz
Noise Level (Outdoor Unit)50 dB

Summary

Safety Precautions

General Public Safety

Safety instructions for general users regarding power supply cords.

Refrigerant Installation Safety

Precautions for installing the new HFC R410A refrigerant air conditioner.

Power Disconnection Safety

Instructions for safely disconnecting the appliance from the main power supply.

Critical Safety Warnings

Critical safety warnings regarding electrical work, installation, and handling refrigerant.

Installation and Handling Warnings

Warnings about modifying the unit, installation location, earthing, and refrigerant usage.

General Installation Cautions

Cautions regarding exposure to moisture, unit inspection, installation environment, and handling.

Technical Specifications

Unit Specifications

Detailed technical specs for indoor/outdoor units: capacity, power, noise, dimensions.

Operation Characteristic Curves

Graphs showing compressor speed vs. current and temp. vs. capacity ratio.

Capacity Variation by Temperature

Graphs illustrating how cooling/heating capacity varies with outdoor temperature.

R410A Refrigerant Handling

Installation and Servicing Safety

Safety precautions for handling R410A refrigerant during installation and servicing.

Refrigerant Piping Installation

Guidelines and requirements for installing refrigerant piping.

Piping Materials and Joints

Details on recommended copper pipes, joints, and their specifications for R410A.

Piping Material Processing

Procedures and precautions for processing piping materials, including cutting and flaring.

Flare Processing Dimensions

Details on flare processing dimensions for R410A and R22, and flare nut dimensions.

Flare Connecting Procedures

Procedures and precautions for flare connecting, including tightening torque.

Required Tools for R410A

Lists required tools exclusive for R410A and general tools for installation and servicing.

Refrigerant Recharging Procedure

Step-by-step procedure for recharging refrigerant, including vacuuming.

Brazing of Pipes and Flux

Information on brazing materials and flux for pipe connections.

Brazing Methods

Brazing methods to prevent oxidation using nitrogen gas.

Construction Views and Diagrams

Indoor Unit Construction

Exploded view and dimensions of the indoor unit and its components.

Outdoor Unit Construction

Exploded view and dimensions of the outdoor unit, including installation dimensions.

Wiring Diagrams

Indoor Unit Wiring Diagram

Wiring diagram for the indoor unit, including quick checks for diagnosing faults.

Outdoor Unit Wiring Diagram

Wiring diagram for the outdoor unit, including the inverter assembly.

Electrical Parts Specifications

Indoor Unit Electrical Parts

List of electrical parts for the indoor unit with their types and specifications.

Outdoor Unit Electrical Parts

List of electrical parts for the outdoor unit with their types and specifications.

Refrigerant Cycle and Operation Data

Refrigerant Cycle Diagram

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

Operation Data Summary

Table showing operational data for cooling and heating under specific conditions.

Control Block Diagrams

Indoor Unit Control Block Diagram

Block diagram showing the control functions and signals of the indoor unit.

Outdoor Unit Control Block Diagram

Block diagram illustrating the control functions of the outdoor unit's inverter assembly.

Operation Descriptions

Air Conditioner Control Overview

General overview of the air conditioner's capacity-variable control and unit roles.

Detailed Operation Descriptions

Lists various operation descriptions, including basic, cooling/heating, auto, and dry operations.

Auto Restart Function

Instructions on how to set and cancel the auto restart function.

Remote Controller Functions

Lists parts of the remote controller and basic operation modes.

Remote Controller Indications

Explains various indications on the remote controller display.

Installation Procedures

Installation Diagrams and Parts

Diagrams and lists of parts for indoor/outdoor unit installation.

Indoor Unit Installation

Guidelines for indoor unit installation, including location and mounting.

Outdoor Unit Installation

Guidelines for outdoor unit installation, including location and piping.

Wiring and Piping Connections

Procedures for wiring connections and refrigerant piping installation.

Installation Others

Includes gas leak test, remote control A-B selection, and test operation.

Troubleshooting Guide

Initial Confirmation and Program Operation

Procedures for initial confirmation of power, voltage, and normal operation.

Primary Judgment and LED Diagnosis

Methods for primary diagnosis and interpreting indoor unit LED flashing codes.

Remote Controller Diagnosis

How to use the remote controller for self-diagnosis and check codes.

Symptom-Based Troubleshooting

Troubleshooting based on symptoms, including wiring and specific component issues.

Checking Main Parts

Troubleshooting procedure for checking main parts like pulse motor valve and sensors.

Outdoor Unit Diagnosis

Summarized inner diagnosis of the inverter assembly for outdoor unit troubles.

Component Checks

Procedures for checking P.C. boards, sensors, and motors.

Outdoor Fan Motor Check

Symptoms, causes, and methods to judge the condition of the outdoor fan motor.

Main Parts Replacement

Indoor Unit Parts Replacement

Procedures for replacing indoor unit parts like front panel, electrical parts, and louvers.

Microcomputer Replacement

Procedures for accessing and removing the microcomputer.

Outdoor Unit Parts Replacement

Procedures for replacing outdoor unit parts like cabinets, inverter, and control board.

Exploded Views and Parts Lists

Indoor Unit Parts List

Exploded view and parts list for the indoor unit's electronic and main components.

Outdoor Unit Parts List

Exploded view and parts list for the outdoor unit's main and electronic components.

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