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Toshiba RAS-M13NKCV-E User Manual

Toshiba RAS-M13NKCV-E
54 pages
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SERVICE MANUAL
FILE NO.SVM-05019
AIR-CONDITIONER
SPLIT TYPE
RAS-M10NKV-E, RAS-M13NKV-E, RAS-M16NKV-E
RAS-M10NKCV-E, RAS-M13NKCV-E, RAS-M16NKCV-E
R410A
May, 2005
(This service manual provide information only on the indoor units.
For information on the outdoor unit please refer to the service manual
of the outdoor unit.)
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Toshiba RAS-M13NKCV-E Specifications

General IconGeneral
TypeSplit System
Cooling Capacity3.5 kW
Heating Capacity4.0 kW
RefrigerantR410A
Power Supply220-240V, 50Hz
Indoor Unit Dimensions (W x H x D)798 x 293 x 230 mm
Outdoor Unit Dimensions (W x H x D)780 x 550 x 290 mm
Indoor Unit Weight9 kg
Outdoor Unit Weight30 kg
Noise Level (Outdoor)50 dB(A)

Summary

Specifications

Specifications for M10, M13, M16 NKV-E Models

Electrical and physical specifications for specific indoor unit models.

Specifications for M10, M13, M16 NKCV-E Models

Electrical and physical specifications for specific indoor unit models.

Construction Views

Indoor Unit Construction and Dimensions

Detailed diagram showing dimensions and component placement of the indoor unit.

Wiring Diagram

Wiring Diagram for 10k & 13k Indoor Units

Electrical wiring schematic for 10k and 13k capacity indoor units.

Simple Failure Diagnosis Checks

Step-by-step guide for basic troubleshooting of common issues.

Wiring Diagram for 16k Indoor Unit

Electrical wiring schematic for 16k capacity indoor units.

Electrical Parts Specifications

Electrical Parts for M10/M13 NK(C)V-E Models

List and specifications of electrical components for specific indoor unit models.

Electrical Parts for M16 NK(C)V-E Models

List and specifications of electrical components for specific indoor unit models.

Control Block Diagram

Indoor Unit Control Block Diagram

Diagram illustrating the functional blocks and signal flow within the indoor unit.

Remote Controller Functions

Details on how the remote controller interacts with different indoor unit models.

Operation Description

Air Conditioner Control Overview

Explains the overall control architecture and interaction between indoor and outdoor units.

Indoor Unit Controller Functions

Details the responsibilities and functions of the indoor unit's control board.

Outdoor Unit Controller Functions

Details the responsibilities and functions of the outdoor unit's control board.

Capacity Control Mechanism

Current Release Control

Power Factor Improvement Control

Prevent-Freezing Control

Pulse Modulating Valve (PMV) Operation

Louver Control Functions

Indoor Fan Control

Outdoor Fan Control

Operation Circuit Description

Fan Only Operation Mode

Cooling Operation Details

Cooling Capacity Control

How cooling capacity is controlled by compressor motor speed.

Cooling Prevent-Freezing Control

Describes the process to prevent indoor heat exchanger freezing in cooling mode.

Cooling Current Release Control

Details how compressor speed is reduced when current exceeds limits.

Outdoor Temperature Release Control

How current release points are adjusted based on outdoor temperature.

Compressor Speed Limit by Indoor Fan Speed

Louver Control in Heating

Discharge Temperature Control

ECONO Operation Control

COMFORT SLEEP Operation Control

Hi POWER Operation Control

Quiet Operation Control

DRY Operation Mode

Heating Operation Details

Super Ultra Low (SUL) Fan Speed

Details the SUL fan speed in starting and stability conditions.

Heating Capacity Control

Describes how heating capacity is controlled based on room temperature.

Heating High-Temperature Release Control

Explains how compressor speed is reduced at high indoor heat exchanger temperatures.

Heating Current Release Control

Details how compressor speed is reduced based on current input.

Defrost Control Logic

Louver Control in Heating Operation

Heating ECONO Operation Control

Heating COMFORT SLEEP Operation Control

Heating Hi POWER Operation Control

Heating QUIET Operation Control

Auto Operation Mode

Auto Operation Mode Selection

Explains how operation mode is selected based on outside temperature.

Re-selecting Auto Operation Mode

Conditions under which the operation mode can be re-selected.

Powerful Cool Mode

Details the Powerful Cool mode operation and louver direction.

Temporary Operation Modes

Temporary Auto Operation Details

Explains how to start and operate Temporary Auto mode.

Temporary Cooling Operation Details

Explains how to start and operate Temporary Cooling mode.

Auto Restart Function

Setting the Auto Restart Function

Step-by-step instructions on how to enable the auto restart feature.

Cancelling the Auto Restart Function

Step-by-step instructions on how to disable the auto restart feature.

Power Failure During Timer Operation

Explains cancellation of timer operation due to power failure.

Filter Check Lamp Indicator

Information about the filter check lamp and its reset procedure.

Remote Control Functions

Remote Control Buttons and Functions

Explains the purpose and operation of each button on the remote control.

Remote Control Display Indications

Installation Procedure

Installation Safety Precautions

Important safety warnings and guidelines to follow during installation.

New Refrigerant (R-410A) Installation Notes

Specific instructions and precautions for installing units using R-410A refrigerant.

Installation and Servicing Tools

Indoor Unit Installation Diagram

Wireless Remote Control Installation

Steps for installing the wireless remote control holder and batteries.

Refrigerant Pipe Insulation

Instructions on proper insulation of refrigerant pipes.

Indoor Unit Installation Location

Recommended Installation Location

Guidelines for selecting an appropriate location for the indoor unit.

Remote Controller Placement Guidelines

Recommendations for positioning the remote controller for optimal signal reception.

Installation Plate Mounting

Instructions for securely mounting the indoor unit's installation plate.

Cutting Holes and Mounting Plate

Electrical Wiring Installation

Wiring Connections

Connecting the Indoor Unit Cable

Step-by-step guide for connecting the indoor unit's power and control cables.

Piping and Drain Hose Installation

Instructions for forming and installing refrigerant pipes and the drain hose.

Indoor Unit Mounting and Fixing

Drain Hose Setup and Drainage Check

Remote Controller Selector Switch Setting

Setting Switch on Indoor Unit Side

Instructions for configuring the remote controller selector switch on the indoor unit.

Setting Switch on Remote Controller Side

Instructions for configuring the remote controller selector switch on the remote control.

Final Installation Checks and Testing

Troubleshooting Guide

Initial Confirmation Steps

Basic checks to perform before detailed troubleshooting.

Normal Operation Scenarios

Identifies operational behaviors that are not considered equipment malfunctions.

Primary Troubleshooting Methods

Outlines the initial methods for diagnosing issues, starting with LED indicators.

Indoor Unit LED Error Codes

Remote Control Self-Diagnosis

Using Remote Control in Service Mode

Step-by-step guide to activate service mode on the remote control for diagnostics.

Servicing Cautions and Procedures

Troubleshooting by Symptom

Indoor Unit Troubleshooting (10/13k)

Power Not On After P.C. Board Replacement

Indoor Fan Not Operating

Preliminary Checks for 16k Model

16k Model Fan Motor Troubleshooting

Fan Motor Auto-Rotation (16k Model)

Checking Main Parts

Indoor Unit P.C. Board Inspection

Procedures for inspecting the indoor unit's P.C. board for defects.

Checking Procedure for 10/13k Models

Checking Procedure for 16k Model

Indoor Unit Other Parts Inspection

Replacing Main Parts

Indoor Unit Part Replacement

Procedures for removing and replacing main components of the indoor unit.

Heat Exchanger Replacement

Step-by-step instructions for replacing the heat exchanger assembly.

Cross Flow Fan Replacement

Procedures for removing and replacing the cross flow fan and motor.

Base Bearing Replacement

Instructions for replacing the base bearing for the fan motor.

Microcomputer Replacement

Exploded Views and Parts List

Indoor Unit E-Parts Exploded View

Exploded diagram and list of electronic parts (E-Parts Assy) for the indoor unit.

Indoor Unit Exploded View and Parts List

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