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Toshiba RAS-M24N3KV2-E User Manual

Toshiba RAS-M24N3KV2-E
77 pages
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R410A
SERVICE MANUAL
AIR-CONDITIONER
SPLIT TYPE
Indoor Unit
<High Wall, Heat Pump Type>
RAS-M24N3KV2-E
FILE NO. SVM-12087
February, 2013

Table of Contents

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Toshiba RAS-M24N3KV2-E Specifications

General IconGeneral
Power Supply220-240V, 50Hz
RefrigerantR410A
Indoor Unit Weight13 kg
TypeSplit System
Cooling Capacity (kW)7.03 kW
Coefficient of Performance (COP)3.21

Summary

Exploded Views and Parts List

Indoor Unit

Detailed breakdown of the indoor unit components with part numbers and descriptions.

Indoor Unit (Part-E)

Specific breakdown of electrical components and sensors within the indoor unit.

Safety Precautions

Specifications

Refrigerant R410A

Safety During Installation/Servicing

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

Piping Materials and Joints Used

Details on selecting and using appropriate copper pipes and joints for R410A systems.

Tools

Required Tools

List of necessary tools, differentiating between R410A exclusive and general-use tools.

Recharging of Refrigerant

Brazing of Pipes

Materials for Brazing

Overview of brazing filler materials and their suitability for joining pipes.

Flux

Explanation of flux purpose, types, and characteristics for effective brazing.

Brazing

Procedure for brazing, including methods to prevent oxidation.

Construction Views

Wiring Diagram

Specifications of Electrical Parts

Refrigerant Cycle Diagram

Control Block Diagram

Operation Description

9-1. Outline of Air Conditioner Control

Overview of the air conditioner's control system, including indoor and outdoor unit roles.

9-2. Operation Description

Detailed description of various operational modes and functions of the air conditioner.

9-3. Auto Restart Function

Explanation of the automatic restart function and its setup procedures.

9-4. Remote Controller

Information on the remote controller, its functions, and operation.

Installation Procedure

10-1. Installation Diagram of Indoor and Outdoor Units

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

10-2. Installation

Details on optional installation parts required for unit setup.

10-3. Indoor Unit

Instructions for indoor unit installation, including placement and hole drilling.

10-3-5. Piping and drain hose installation

Guidance on correctly installing refrigerant pipes and drain hoses.

10-3-6. Indoor Unit Fixing

Steps for securely fixing the indoor unit to the installation plate.

10-3-7. Drainage

Proper methods for ensuring correct drainage from the indoor unit.

10-4. Outdoor Unit

10-5. Others

10-5-1. Remote Control A-B Selection

Procedure for selecting remote control mode A or B for multi-unit installations.

10-5-2. Test operation

Instructions for performing a test run of the air conditioner.

10-5-3. Auto restart setting

How to enable the auto restart function after a power failure.

How to Diagnose the Trouble

11-1. First Confirmation

Initial checks for power supply, voltage, and basic operation status.

11-2. Primary Judgment

Methods for initial diagnosis of troubles, including LED indicators and remote controller checks.

11-3. Judgment by Flashing LED of Indoor Unit

Interpreting indoor unit LED flashing codes for self-diagnosis of faults.

11-4. Self-Diagnosis by Remote Controller (Check Code)

Using the remote controller in service mode to retrieve and interpret error codes.

11-5. Judgment of Trouble by Every Symptom

Troubleshooting guide based on specific symptoms observed during operation.

11-6. How to Check Simply the Main Parts

Procedures for checking main components like the P.C. board and other parts.

11-7. How to Simply Judge Whether Outdoor Fan Motor is Good or Bad

Guidance on testing the outdoor fan motor's functionality.

How to Replace the Main Parts

12-1. Indoor Unit

Step-by-step instructions for replacing main parts of the indoor unit.

Indoor Unit (Part-E)

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