Toshiba RAS-10NKHD-E User Manual

FILE NO. SVM-04022-1
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
RAS-13NKHD-E / RAS-13UAH-E3
RAS-10NKHD-E / RAS-10UAH-E3
RAS-07NKHD-E / RAS-07UAH-E3
RAS-13NKD-E / RAS-13UA-E3
RAS-10NKD-E / RAS-10UA-E3
RAS-07NKD-E / RAS-07UA-E3
Revised on March, 2005

Toshiba RAS-10NKHD-E Specifications

General

Cooling Capacity	2.5 kW
Heating Capacity	3.2 kW
Refrigerant	R410A
Power Supply	220-240V, 50Hz
Energy Efficiency Ratio (EER)	3.21
Coefficient of Performance (COP)	3.61
Type	Split System Air Conditioner

Summary

Specifications

Construction Views

2-1. Indoor Unit

Details of the indoor unit's physical structure and dimensions.

2-2. Outdoor Unit (RAS-13UAH-E3, RAS-10UAH-E3, RAS-13UA-E3, RAS-10UA-E3)

Details of the outdoor unit's physical structure and dimensions for specific models.

2-3. Outdoor Unit (RAS-07UAH-E3, RAS-07UA-E3)

Details of the outdoor unit's physical structure and dimensions for specific models.

Wiring Diagram

3-1. RAS-13NKHD-E / RAS-13UAH-E3

Wiring diagram for the RAS-13NKHD-E/RAS-13UAH-E3 model.

3-2. RAS-10NKHD-E / RAS-10UAH-E3 RAS-07NKHD-E / RAS-07UAH-E3

Wiring diagram for RAS-10NKHD-E/RAS-10UAH-E3 and RAS-07NKHD-E/RAS-07UAH-E3.

3-3. RAS-13NKD-E / RAS-13UA-E3

Wiring diagram for the RAS-13NKD-E/RAS-13UA-E3 model.

3-4. RAS-10NKD-E / RAS-10UA-E3 RAS-07NKD-E / RAS-07UA-E3

Wiring diagram for RAS-10NKD-E/RAS-10UA-E3 and RAS-07NKD-E/RAS-07UA-E3.

Specification of Electrical Parts

4-1. Indoor Unit (RAS-13NKHD-E, RAS-10NKHD-E, RAS-07NKHD-E)

Electrical parts specifications for indoor units.

4-2. Outdoor Unit (RAS-13UAH-E3)

Electrical parts specifications for RAS-13UAH-E3 outdoor unit.

4-3. Outdoor Unit (RAS-10UAH-E3)

Electrical parts specifications for RAS-10UAH-E3 outdoor unit.

4-4. Outdoor Unit (RAS-07UAH-E3)

Electrical parts specifications for RAS-07UAH-E3 outdoor unit.

4-5. Indoor Unit (RAS-13NKD-E, RAS-10NKD-E, RAS-07NKD-E)

Electrical parts specifications for indoor units.

4-6. Outdoor Unit (RAS-13UA-E3)

Electrical parts specifications for RAS-13UA-E3 outdoor unit.

4-7. Outdoor Unit (RAS-10UA-E3)

Electrical parts specifications for RAS-10UA-E3 outdoor unit.

4-8. Outdoor Unit (RAS-07UA-E3)

Electrical parts specifications for RAS-07UA-E3 outdoor unit.

Refrigeration Cycle Diagram

5-1. RAS-13NKHD-E / RAS-13UAH-E3

Refrigeration cycle diagram for specific models.

5-2. RAS-10NKHD-E / RAS-10UAH-E3

Refrigeration cycle diagram for specific models.

5-3. RAS-07NKHD-E / RAS-07UAH-E3

Refrigeration cycle diagram for specific models.

5-4. RAS-13NKD-E / RAS-13UA-E3

Refrigeration cycle diagram for specific models.

5-5. RAS-10NKD-E / RAS-10UA-E3

Refrigeration cycle diagram for specific models.

5-6. RAS-07NKD-E / RAS-07UA-E3

Refrigeration cycle diagram for specific models.

Control Block Diagram

6-1. Heat Pump model

Control block diagram for heat pump models.

6-2. Cooling model

Control block diagram for cooling models.

Operation Description

7-1. Outline of Air Conditioner Control

General overview of the air conditioner control system.

7-2. Description of Operation Circuit

Detailed description of the air conditioner's operation circuit.

7-3. Hi POWER Mode

Explanation of the Hi POWER mode operation.

7-4. High-Temperature Limit Control (NKHD Series only)

Control for preventing excessive rise in refrigerating cycle pressure.

7-5. Low-Temperature Limit Control

Control to prevent the indoor heat exchanger from freezing.

7-6. Defrost Operation (NKHD Series only)

Procedure for defrosting the outdoor heat exchanger in heating mode.

7-7. Current Limit Control (NKHD Series only)

Control to prevent input current from exceeding specified values.

7-8. Auto Restart Function

Function for automatic restart after power interruption.

7-9. Filter Check Lamp

Indication and reset procedure for the filter check lamp.

7-10. Self-Cleaning function

Function to reduce humidity and prevent mold formation.

Installation Procedure

8-1. Safety Cautions

Important safety precautions for installation.

8-2. Installation Diagram of Indoor and Outdoor Units

Illustrations showing indoor and outdoor unit installation.

8-3. Installation

General installation guidelines and optional parts.

8-4. Indoor Unit

Details for installing the indoor unit.

8-5. Outdoor Unit

Details for installing the outdoor unit.

Troubleshooting Chart

9-1. Troubleshooting Procedure

Steps to follow for troubleshooting.

9-2. Basic Check Items

Fundamental checks before troubleshooting.

9-3. Primary Judgement

Initial diagnosis based on lamp indicators and symptoms.

9-4. Self-Diagnosis by Remote Control (Check Code)

Using remote control check codes for fault diagnosis.

9-5. Troubleshooting Flowcharts

Flowcharts to diagnose and resolve specific operational issues.

9-6. Troubleshooting for Remote Control (Including the Indoor P.C. Board)

Troubleshooting steps for remote control and indoor unit PCB issues.

9-7. Troubleshooting for Air Purifier and Minus Ion

Diagnosing issues with the air purifier and minus ion generator.

Part Replacement

10-1. Indoor Unit

Procedures for replacing parts of the indoor unit.

10-2. Outdoor Unit

Procedures for replacing parts of the outdoor unit.

Exploded Views and Parts List

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

Exploded view and parts list for the indoor unit's electronic components.

11-2. Indoor Unit

Exploded view and parts list for the indoor unit assembly.

11-3. Outdoor Unit (RAS-13UAH-E3)

Exploded view and parts list for the RAS-13UAH-E3 outdoor unit.

11-4. Outdoor Unit (RAS-10UAH-E3)

Exploded view and parts list for the RAS-10UAH-E3 outdoor unit.

11-5. Outdoor Unit (RAS-13UA-E3)

Exploded view and parts list for the RAS-13UA-E3 outdoor unit.

11-6. Outdoor Unit (RAS-10UA-E3)

Exploded view and parts list for the RAS-10UA-E3 outdoor unit.

11-7. Outdoor Unit (RAS-07UA-E3)

Exploded view and parts list for the RAS-07UA-E3 outdoor unit.