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Toshiba RAS-M13YKV-E User Manual

Toshiba RAS-M13YKV-E
125 pages
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SERVICE MANUAL
FILE NO. A01-004
AIR-CONDITIONER
SUPPLEMENT
SPLIT TYPE
PRINTED IN JAPAN, Mar.,2001 ToMo
RAS-M10YKV-E, RAS-M13YKV-E, RAS-M16YKV-E
RAS-4M27YAV-E
RAS-M10YKCV-E, RAS-M13YKCV-E, RAS-M16YKCV-E
RAS-4M27YACV-E
RAS-M10YKV-E, RAS-M13YKV-E, RAS-M16YKV-E
RAS-3M26YAV-E
R410A
• Indoor Unit (1)
• Indoor Unit (2)
• Outdoor Unit
• P.C. board Layout
RAS-4M27YAV-E
RAS-4M27YACV-E
RAS-3M26YAV-E
Parts List
File No. A01-004
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Toshiba RAS-M13YKV-E Specifications

General IconGeneral
BrandToshiba
ModelRAS-M13YKV-E
CategoryAir Conditioner
LanguageEnglish

Summary

Toshiba Air Conditioner Specifications

1-1. Specifications

Details on unit specifications, capacities, noise, dimensions, and piping.

1-2. Performance Specifications for Combined Units

Performance data for various indoor/outdoor unit combinations, including capacity and power consumption.

1-3. Electrical Data

Electrical specifications for outdoor units, including MCA, MOCP, FLA, and voltage ranges.

Refrigerant R410A Installation and Safety

2-1. Safety During Installation/Servicing

Precautions and safety guidelines for handling R410A refrigerant during installation and servicing.

2-2. Refrigerant Piping Installation

Details on piping materials, joints, and processing for R410A refrigerant systems.

2-3. Tools

Lists required and general tools for R410A installation and servicing, noting interchangeability.

2-4. Recharging of Refrigerant

Step-by-step procedure for safely recharging refrigerant into the system, including precautions.

2-5. Brazing of Pipes

Guidelines for materials, flux, and brazing procedures, emphasizing safety and preventing oxidation.

Construction Views

3-1. Indoor Unit

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

3-2. Outdoor Unit

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

Wiring Diagrams

4-1. Indoor Unit

Wiring diagram for the indoor unit, including simple check points for fault diagnosis.

4-2. Outdoor Unit

Wiring diagram for the outdoor unit, showing connections for various components and boards.

Specifications of Electrical Parts

5-1. Indoor Unit

List of electrical parts used in the indoor unit with their specifications.

5-2. Outdoor Unit

List of electrical parts used in the outdoor unit with their specifications.

Control Block Diagrams

7-1. Indoor Unit

Control block diagram of the indoor unit, detailing MCU functions and remote controller signals.

7-2. Outdoor Unit (Inverter Assembly)

Control block diagram of the outdoor unit, including inverter assembly and MCU functions.

Operation Description and Control

8-1. Outline of Air Conditioner Control

Overview of air conditioner control system, indoor/outdoor unit controller roles, and compressor control.

8-1-1. Capacity Control

How cooling capacity is controlled by varying compressor motor speed.

8-1-2. Current Release Control

How outdoor unit controls compressor speed to prevent exceeding current limits.

8-1-4. Prevent-Freezing Control

How the system prevents freezing of the indoor heat exchanger by reducing compressor speed.

8-1-5. P. M. V. (Pulse Modulating Valve)

Function of the Pulse Modulating Valve in controlling refrigerant flow.

8-1-6. Louver Control

Control of vertical air flow louvers, including auto and manual settings.

8-1-7. Indoor Fan Control (DC Fan Motor)

Control of indoor fan motor speed and air flow rates.

8-2. Description of Operation Circuit

Explanation of the operation circuit and fan-only mode.

8-2-2. Cooling Operation

Detailed description of cooling operation, including capacity and temperature controls.

8-2-3. DRY Operation

Description of the DRY operation mode, focusing on dehumidification.

8-2-4. Heating Operation

Description of heating operation, including capacity control and defrost.

8-3. Temporary Operation

How to use temporary operation modes like Auto and Cooling.

8-4. Auto Restart Function

Functionality and setting procedures for automatic restart after power interruption.

8-4-1. How to Set the Auto Restart

Step-by-step instructions for enabling the auto restart function.

8-4-2. How to Cancel the Auto Restart

Procedure to disable or cancel the auto restart function.

Installation Procedure

9-1. Safety Cautions

Critical safety warnings and precautions for installation, including electrical and refrigerant handling.

9-2. Indoor Unit Installation

Detailed procedures for installing the indoor unit.

9-2-2. Installation Place

Guidelines for selecting an appropriate installation location for the indoor unit.

9-2-3. Cutting a Hole and Mounting Installation Plate

Instructions for cutting wall holes and mounting the installation plate for the indoor unit.

9-2-4. Wiring Connection

Procedures for connecting inter-connect cables and wiring, including grounding.

9-2-5. Piping and Drain Hose Installation

Steps for installing refrigerant piping and drain hoses for the indoor unit.

9-2-6. Drainage

Proper methods for running and installing the drain hose to ensure correct drainage.

9-2-7. Indoor Unit Fixing

Steps to securely fix the indoor unit onto the installation plate.

9-2-8. Setting of Remote controller Selector Switch

How to set the remote controller selector switch for multi-indoor unit installations.

9-2-9. Check and Test Operation

Procedures for checking and testing the installed unit's operation.

9-3. Outdoor Unit Installation

Procedures for installing the outdoor unit.

9-3-2. Refrigerant Piping

Specific requirements for refrigerant piping kits and materials for R410A.

9-3-3. Installation Place

Guidelines for selecting an appropriate installation location for the outdoor unit.

9-3-6. Refrigerant Piping Connection

Detailed instructions for connecting refrigerant piping, including flaring and tightening.

9-3-7. Installation

General installation notes for the outdoor unit, including clearance and securing.

9-3-8. Evacuating

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

9-3-9. Electrical Work

Instructions for connecting the power cord and wiring to the outdoor unit.

9-3-10. Check and Test Operation

Steps for checking connections and testing the system after installation.

9-3-11. Miswiring (Mispiping) Check

Procedure to check for incorrect wiring and piping using LED indicators.

Troubleshooting Guide

10-1. First Confirmation

Initial confirmation steps including power supply and voltage checks.

10-2. Primary Judgment

Initial troubleshooting steps using flashing LEDs, remote controller self-diagnosis, and symptom analysis.

10-3. Judgment by Flashing LED of Indoor Unit

Interpreting indoor unit LED indications to diagnose protective circuit operations.

10-4. Self-Diagnosis by Remote controller (Check Code)

Using the remote controller to perform self-diagnosis and retrieve error codes.

10-5. Judgment of Trouble by Every Symptom

Troubleshooting symptoms related to the indoor unit, outdoor unit, and wiring.

10-6. Trouble Diagnosis by Outdoor LED

Interpreting outdoor unit LED indications for self-diagnosis of faults.

10-7. How to Diagnose Trouble in Outdoor Unit

A flowchart for diagnosing inverter assembly issues in the outdoor unit.

10-8. How to Check Simply the Main Parts

Procedures for checking main electrical parts like P.C. boards, sensors, and motors.

10-9. How to Simply Judge Whether Outdoor Fan Motor is Good or Bad

Step-by-step guide to test the outdoor fan motor's functionality.

How to Replace Main Parts

11-1. Indoor Unit Parts Replacement

Procedures for replacing major indoor unit components like the front panel and electrical parts.

11-2. Microcomputer Replacement

Layout and replacement of the microcomputer and its associated P.C. board.

11-3. Outdoor Unit Parts Replacement

Procedures for detaching and replacing major outdoor unit components like the inverter, control board, and compressor.

Exploded Views and Parts List

12-1. Indoor Unit (1) Parts List

Exploded view and parts list for the indoor unit (part 1).

12-2. Outdoor Unit Parts List

Exploded view and parts list for the outdoor unit, including model numbers.

12-3. P.C. Board Layout

Layout of P.C. boards and sensor connections for the RAS-4M27YAV-E outdoor unit.

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