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Toshiba RAS-10SAV-A User Manual

Toshiba RAS-10SAV-A
94 pages
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FILE NO. SVM-07008-1
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
Revised May, 2007
RAS-10SKV-E / RAS-10SAV-E
RAS-10SKV-A / RAS-10SAV-A

Table of Contents

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Toshiba RAS-10SAV-A Specifications

General IconGeneral
BrandToshiba
ModelRAS-10SAV-A
CategoryAir Conditioner
LanguageEnglish

Summary

1. SAFETY PRECAUTIONS

2. SPECIFICATIONS

2-2. Operation Characteristic Curve

Details operational curves for cooling and heating based on compressor speed, illustrating current draw versus speed.

2-3. Capacity Variation Ratio According to Temperature

Shows how cooling and heating capacity vary with outside temperature, presented in graphical format.

3. REFRIGERANT R410A

3-1. Safety During Installation/Servicing

Crucial safety precautions for handling R410A refrigerant during installation and servicing, emphasizing pressure and impurity risks.

3-2. Refrigerant Piping Installation

Covers materials, joints, and processing techniques for refrigerant piping with R410A, including pipe dimensions and flare processing.

3-3. Tools

Lists and categorizes tools required for R410A systems, distinguishing between exclusive and general-purpose tools.

3-4. Recharging of Refrigerant

Details the step-by-step procedure for recharging refrigerant, including system configuration and safety measures.

3-5. Brazing of Pipes

Explains materials, flux requirements, and methods for brazing pipes to prevent oxidation and ensure integrity.

4. CONSTRUCTION VIEWS

4-1. Indoor Unit Construction

Illustrates the dimensions and components of the indoor unit with detailed diagrams of its external and internal structure.

4-2. Outdoor Unit Construction

Provides dimensional views and component layouts for the outdoor unit, including installation dimensions and detail drawings.

5. WIRING DIAGRAM

5-1. Indoor Unit Wiring

Details the wiring diagram for the indoor unit, showing connections to terminal blocks, PCB, and various components.

5-2. Outdoor Unit Wiring

Presents the wiring diagram for the outdoor unit, illustrating connections to the P.C. board, motors, and other components.

6. SPECIFICATION OF ELECTRICAL PARTS

6-1. Indoor Unit Electrical Parts

Lists electrical components used in the indoor unit with their types, model names, and specifications.

6-2. Outdoor Unit Electrical Parts

Details the electrical parts for the outdoor unit, including model names, ratings, and specifications for each component.

7. REFRIGERANT CYCLE DIAGRAM

7-1. Refrigerant Cycle Diagram

Illustrates the flow of refrigerant through the indoor and outdoor units, marking key components and measurement points.

7-2. Operation Data

Provides operational data under specific cooling and heating conditions, including temperatures, pressures, and speeds.

8. CONTROL BLOCK DIAGRAM

8-1. Indoor Unit Control Block

Shows the control logic and signal flow for the indoor unit's microcomputer, including sensor inputs and output controls.

8-2. Outdoor Unit Control Block

Details the control system for the outdoor unit's inverter assembly and microcomputer, outlining PWM synthesis and protection functions.

9. OPERATION DESCRIPTION

9-1. Outline of Air Conditioner Control

Provides an overview of the air conditioner's capacity-variable type, AC motor usage, and control system.

9-2. Roles of Controllers

Describes the functions of the indoor and outdoor unit controllers and their serial signal communication.

9-3. Operation Command Signals

Details the contents of operation command signals exchanged between indoor and outdoor unit controllers.

9-2. Detailed Operation Modes

1. Basic Operation

Explains the basic operation control flow involving remote controller, indoor unit, and outdoor unit communication.

2. Cooling/Heating Operation

Describes the sequence of operations for cooling and heating modes, including signal transfer and unit control.

3. AUTO Operation

Explains the automatic operation mode selection based on room temperature and previous operation status.

4. DRY Operation

Details the dehumidification mode, including room temperature detection and fan speed control.

9-3. Auto Restart Function

9-3-1. How to Set Auto Restart

Provides step-by-step instructions on how to enable the auto restart function using the RESET button.

9-3-2. How to Cancel Auto Restart

Explains the procedure to disable the auto restart function, repeating the setting process.

9-4. Remote Controller Functions

9-4-1. Remote Control Functions

Lists and describes the functions of each button and indicator on the remote controller.

9-4-2. Remote Control Operation

Explains how to operate the remote control for various modes like ONE-TOUCH, AUTOMATIC, and COOL/HEAT/FAN ONLY.

9-4-3. Indications on Remote Controller

Details the meaning of various symbols and indicators displayed on the remote controller's screen.

10. INSTALLATION PROCEDURE

10-1. Installation Diagrams & Parts

Illustrates installation layouts for indoor/outdoor units, optional parts, accessories, and necessary tools.

10-2. Indoor Unit Installation

Covers indoor unit placement, hole cutting, mounting plates, electrical work, wiring, and piping connections.

10-3. Outdoor Unit Installation

Details outdoor unit placement, refrigerant piping connection, evacuation, wiring, and leak testing procedures.

11. TROUBLESHOOTING GUIDE

11-1. Initial Checks and Preliminary Diagnosis

Covers first confirmation, power checks, primary judgments, LED analysis, and basic troubleshooting steps.

11-4. Remote Controller Self-Diagnosis

Explains using the remote controller in service mode for self-diagnosis, check codes, and caution at servicing.

11-5. Symptom-Based Diagnosis

Provides diagnostic steps based on symptoms like no operation, fan issues, wiring failures, and specific check codes.

11-7. Outdoor Unit Diagnosis

Details troubleshooting for inverter assembly and outdoor unit components using flowcharts and check procedures.

11-8. Main Part Checks

Outlines methods to check P.C. boards, sensors, motors, compressor resistance, and capacitors.

11-9. Outdoor Fan Motor Check

Describes procedures to judge the condition of the outdoor fan motor by checking rotation and winding resistance.

12. PART REPLACEMENT

12-1. Indoor Unit Parts Replacement

Details procedures for replacing indoor unit components: front panel, electrical parts, louvers, heat exchanger, fans, and base bearing.

12-2. Microcomputer Replacement

Explains the procedure for removing and replacing the microcomputer (P.C. board) assembly from the unit.

12-3. Outdoor Unit Parts Replacement

Covers detachment and attachment of outdoor unit parts: cabinets, inverter assembly, control boards, motors, and sensors.

13. EXPLODED VIEWS AND PARTS LIST

13-1. Indoor Unit E-Parts Assy

Provides an exploded view and parts list for indoor unit electronic components, including PC boards and sensors.

13-2. Indoor Unit Assembly Parts

Shows an exploded view and parts list for the main mechanical assemblies of the indoor unit, like panels and fans.

13-3. Outdoor Unit Assembly Parts

Presents an exploded view and parts list for major outdoor unit assemblies and components like fan, compressor, and reactor.

13-4. Outdoor Unit E-Parts Assy

Offers an exploded view and parts list for outdoor unit electronic components, including heatsinks and capacitors.

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