Toshiba RAS-07EK - User Manual

SERVICE MANUAL
AIR-CONDITIONER
SPLIT WALL TYPE
FILE NO. A10-9507
PRINTED IN JAPAN, Jan., 1996 S
RAS-07EK/RAS-07EA
RAS-09EK/RAS-09EA
TOSHIBA

Summary

1. SPECIFICATIONS

2. CONSTRUCTION VIEWS

3. INSTALLATION AND CAUTIONS

3-1. Indoor Unit Installation

Procedures and precautions for installing the indoor unit.

3-2. Refrigerant Piping Process

Steps for cutting, flaring, and connecting refrigerant pipes.

4. WIRING DIAGRAM

5. ELECTRICAL PARTS SPECIFICATIONS

6. REFRIGERANT CYCLE DIAGRAM

7. MICRO-COMPUTER BLOCK DIAGRAM

8. OPERATION DESCRIPTIONS

9. TROUBLESHOOTING

9-1. Initial Pre-Checks

Basic checks to perform before detailed troubleshooting procedures.

9-2. TROUBLESHOOTING JUDGEMENT

9-2-2. Self-Diagnosis Display

9-2-3. SELF-DIAGNOSIS WITH REMOTE CONTROLLER

9-2. SELF-DIAGNOSIS BY CHECK CODES

9-3. TROUBLESHOOTING FLOWCHARTS

9-3-1. Power Failure (No Operation)

Step-by-step flowchart for diagnosing power-related issues.

9-3-2. RELAY RY07;RY08 FAILURE

9-3-3. INDOOR FAN FAILURE

9-3-4. COMPRESSOR FAILURE

9-4. PC BOARD TEST POINTS

9-5. REMOTE CONTROL CHECK

9-5-1. PC BOARD CHECK PROCEDURE

9-6. PC BOARD LAYOUT

10. EXPLODED VIEWS AND PARTS LIST

Toshiba RAS-07EK Specifications

General

Category	Air Conditioner
Type	Split System
Cooling Capacity	2.0 kW
Heating Capacity	2.5 kW
Power Supply	220-240 V, 50 Hz
Energy Efficiency Ratio (EER)	3.21
Coefficient of Performance (COP)	3.61
Refrigerant	R410A
Outdoor Unit Dimensions (WxHxD)	660 x 530 x 240 mm
Indoor Unit Weight	8 kg
Noise Level (Outdoor Unit)	48 dB(A)