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Toshiba RAS-B18NKPX User Manual

Toshiba RAS-B18NKPX
74 pages
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FILE NO. SVM-06004
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
RAS-18NKHP-E / RAS-18NAH-E
RAS-18NKP-E / RAS-18NA-E
RAS-24NKP-E / RAS-24NA-E
RAS-B18NKPX / RAS-18N2AX
RAS-24NKPX / RAS-24N2AX
24 Class18 Class
May, 2006

Table of Contents

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Toshiba RAS-B18NKPX Specifications

General IconGeneral
BrandToshiba
ModelRAS-B18NKPX
CategoryAir Conditioner
LanguageEnglish

Summary

1. Specifications

3. Wiring Diagram

3-1. RAS-18NKHP-E / RAS-18NAH-E Wiring Diagram

Details the wiring diagram for specific 18 Series indoor and outdoor unit models.

3-2. RAS-24NKP-E / RAS-24NA-E Wiring Diagram

Details the wiring diagram for specific 24 Class indoor and outdoor unit models.

3-3. RAS-18NKP-E / RAS-18NA-E Wiring Diagram

Details the wiring diagram for specific 18 Series indoor and outdoor unit models.

4. Specification of Electrical Parts

4-1. Indoor Unit (RAS-18NKHP-E) Parts

Lists specifications for electrical components of the RAS-18NKHP-E indoor unit.

4-2. Outdoor Unit (RAS-18NAH-E) Parts

Lists specifications for electrical components of the RAS-18NAH-E outdoor unit.

4-3. Indoor Unit (RAS-24NKP-E, RAS-24NKPX) Parts

Lists specifications for electrical components of RAS-24NKP-E/RAS-24NKPX indoor units.

4-4. Outdoor Unit (RAS-24NA-E, RAS-24N2AX) Parts

Lists specifications for electrical components of RAS-24NA-E/RAS-24N2AX outdoor units.

4-5. Outdoor Unit (RAS-18NA-E, RAS-18N2AX) Parts

Lists specifications for electrical components of RAS-18NA-E/RAS-18N2AX outdoor units.

5. Refrigeration Cycle Diagram

5-1. RAS-18NKHP-E / RAS-18NAH-E Cycle

Illustrates the refrigeration cycle for specific 18 Series models.

5-2. RAS-24NKP-E / RAS-24NA-E Cycle

Illustrates the refrigeration cycle for specific 24 Series models.

5-3. RAS-18NKP-E / RAS-18NA-E Cycle

Illustrates the refrigeration cycle for specific 18 Series models.

5-4. RAS-B18NKPX / RAS-18N2AX Cycle

Illustrates the refrigeration cycle for specific 18 Series models.

6. Control Block Diagram

6-1. RAS18NKHP-E Control Block Diagram

Shows the internal control logic and signal flow for the RAS18NKHP-E model.

6-2. Multi-Model Control Block Diagram

Shows control logic for multiple models including RAS-18NKP-E and RAS-24NKP-E series.

7. Operation Description

7-1. Air Conditioner Control Overview

Explains the basic control logic of the air conditioner.

7-2. Operation Circuit Details

Details how various operations are controlled.

7-2-2. Cooling Operation

Details the operation of the unit in cooling mode.

7-2-4. Heating Operation

Details the operation of the unit in heating mode.

7-2-5. Automatic Operation

Explains the unit's automatic mode selection based on temperature.

7-3. Hi POWER Mode

Explains the high power mode for faster cooling or heating.

7-7. Auto Restart Function

Describes the function to restart the unit after a power failure.

7-9. Self-Cleaning Function

Describes the function to reduce coil moisture and prevent mold.

7-11. COMFORT SLEEP Mode

Describes the mode for comfortable sleep with automatic temperature adjustments.

8. Installation Procedure

8-1. Safety Cautions

Outlines critical safety precautions for installation personnel and users.

8-2. Installation Diagram

Provides visual guides for installing indoor and outdoor units.

8-4. Indoor Unit Installation Steps

Covers placement, electrical work, piping, and fixing for the indoor unit.

8-5. Outdoor Unit Installation Steps

Covers placement, piping, connections, and evacuation for the outdoor unit.

8-6. Remote Control Setup

Explains how to configure the remote control selector switch.

8-7. Gas Leak Test

Describes methods for checking refrigerant gas leaks.

9. Troubleshooting Chart

9-1. Troubleshooting Procedure

Guides users through the troubleshooting process.

9-2. Basic Checks & Primary Judgement

Covers initial checks and basic failure diagnosis based on indicators.

9-4. Self-Diagnosis and Faulty Parts Diagnosis

Explains remote control diagnostics and component fault identification.

9-6. Indoor Unit & Wiring Troubleshooting

Details indoor unit issues and wiring connection problems.

9-8. P.C. Board & Remote Control Troubleshooting

Guides on troubleshooting circuit boards and the remote control.

10. Part Replacement

10-1. Indoor Unit Part Replacement

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

10-2. Outdoor Unit (24 Class) Parts

Procedures for replacing components in 24 Class outdoor units.

10-3. Outdoor Unit (18 Class) Parts

Procedures for replacing components in 18 Class outdoor units.

11. Exploded Views and Parts List

11-1. Indoor Unit (E-Parts Assy)

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

11-2. Indoor Unit Components

Exploded view and parts list for various indoor unit components.

11-3. Outdoor Unit (18 Class) Components

Exploded view and parts list for 18 Class outdoor units.

11-4. Outdoor Unit (24 Class) Components

Exploded view and parts list for 24 Class outdoor units.

11-5. Outdoor Unit (RAS-18NA-E, RAS-18N2AX) Components

Exploded view and parts list for specific 18 Class outdoor units.

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