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Toshiba RAS-10NKV-E User Manual

Toshiba RAS-10NKV-E
77 pages
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SERVICE MANUAL
AIR-CONDITIONER
SPLIT WALL TYPE
FILE NO. SVM-05026
RAS-10NKV-E / RAS-10NAV-E
June 2005
RAS-10NKV-A / RAS-10NAV-A
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Toshiba RAS-10NKV-E Specifications

General IconGeneral
TypeSplit System
Cooling Capacity2.5 kW
Heating Capacity3.2 kW
RefrigerantR410A
Power Supply220-240V, 50Hz
Energy Efficiency Ratio (EER)3.21
Coefficient of Performance (COP)3.61
Indoor Unit Weight9 kg
Noise Level (Outdoor Unit)50 dB(A)

Summary

1. SPECIFICATIONS

1-1. Specifications

Detailed technical specifications of the indoor and outdoor units, including capacity, power, and dimensions.

1-2. Operation Characteristic Curve

Graphs illustrating current vs. compressor speed and capacity variation with temperature.

1-3. Capacity Variation Ratio According to Temperature

Graphs showing how cooling and heating capacity changes with outdoor temperature.

2. REFRIGERANT R410A

2-1. Safety During Installation/Servicing

Crucial safety precautions for installation and servicing with R410A refrigerant.

2-2. Refrigerant Piping Installation

Guidelines for installing refrigerant piping, including materials, joints, and processing.

2-3. Tools for R410A Installation

Lists of R410A-specific tools and general tools required for installation.

2-4. Recharging of Refrigerant

Step-by-step procedure for safely recharging the air conditioner with refrigerant.

2-5. Brazing of Pipes

Information on brazing materials, flux, and methods to prevent oxidation.

3. CONSTRUCTION VIEWS

3-1. Indoor Unit Dimensions

Diagrams showing the dimensions and physical features of the indoor unit.

3-2. Outdoor Unit Dimensions

Diagrams illustrating the dimensions and physical features of the outdoor unit.

4. WIRING DIAGRAMS

4-1. Indoor Unit Wiring

Wiring diagram for the indoor unit with checks for failure diagnosis.

4-2. Outdoor Unit Wiring

Wiring diagram for the outdoor unit, detailing its electrical connections.

5. SPECIFICATION OF ELECTRICAL PARTS

5-1. Indoor Unit Electrical Parts

List of electrical components for the indoor unit with their specifications.

5-2. Outdoor Unit Electrical Parts

List of electrical components for the outdoor unit with their ratings.

6. REFRIGERANT CYCLE DIAGRAM

6-1. Refrigerant Cycle Diagram

Schematic illustrating the flow of refrigerant through the system components.

6-2. Operation Data

Table containing operational data for cooling and heating modes.

7. CONTROL BLOCK DIAGRAM

7-1. Indoor Unit Control Block

Diagram showing the control functions and signals of the indoor unit.

7-2. Outdoor Unit Control Block

Block diagram detailing the control logic of the outdoor unit's inverter assembly.

8. OPERATION DESCRIPTION

8-1. Control Outline and Functions

Overview of control logic, basic functions, and modes like capacity, fan, and louvers.

8-2. Specific Operation Modes

Detailed descriptions of Cooling, DRY, Heating, and Automatic operation modes.

8-3. Temporary, Auto Restart, and Filter Functions

How to use temporary operations, auto restart, and manage the filter check lamp.

8-6. Remote Control Operations

Explains remote control buttons, functions, and display indications.

9. INSTALLATION PROCEDURE

9-1. General Installation Guidelines

Safety cautions, installation diagrams, parts, and tools for installation.

9-2. Indoor Unit Installation Details

Specific steps for indoor unit installation, including placement, wiring, and drainage.

9-3. Outdoor Unit Installation Details

Specific steps for outdoor unit installation, including piping, wiring, testing, and setup.

10. TROUBLESHOOTING

10-1. Initial Checks and Judgement

First confirmation steps, identifying normal operations, and primary judgment methods.

10-3. LED and Remote Diagnosis

Interpreting indoor unit LED codes and using remote control for self-diagnosis.

10-5. Symptom and Wiring Troubleshooting

Diagnosing issues based on symptoms, wiring failures, and error codes.

10-7. Outdoor Unit and Component Checks

Diagnosing outdoor unit inverter issues and checking main parts like PC boards and fan motors.

10-8. Checking Main Parts

Methods for checking PC boards, motors, and other key components.

10-9. Fan Motor Good/Bad Check

Simple procedure to judge the condition of the outdoor fan motor.

11. HOW TO REPLACE THE MAIN PARTS

11-1. Indoor Unit Component Replacement

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

11-2. Microcomputer Replacement

Steps for replacing the microcomputer and associated components.

11-3. Outdoor Unit Component Replacement

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

12. EXPLODED VIEWS AND PARTS LIST

12-1. Indoor Unit (E-Parts Assy)

Exploded view and parts list for the indoor unit's E-Parts assembly.

12-2. Indoor Unit Parts

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

12-3. Outdoor Unit Parts

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

12-4. Outdoor Unit (E-Parts Assy)

Exploded view and parts list for the outdoor unit's E-Parts assembly.

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