Toshiba RAS-10SAV-A, RAS-10SAV-E, RAS-10SKV-A, RAS-10SKV-E manual

FILE NO. SVM-07008-1

SERVICE MANUAL

AIR CONDITIONER

SPLIT WALL TYPE

RAS-10SKV-E / RAS-10SAV-E

RAS-10SKV-A / RAS-10SAV-A

Revised May, 2007

Contents

Page SAFETY PRECAUTIONS SPECIFICATIONS REFRIGERANT R410A CONSTRUCTION VIEWS WIRING DIAGRAM 1. SAFETY PRECAUTIONS CAUTION DANGER DANGER: HIGH VOLTAGE WARNING 2. SPECIFICATIONS 2-1.Specifications 2-2.Operation Characteristic Curve 3. REFRIGERANT R410A 3-1.Safety During Installation/Servicing 3-2.Refrigerant Piping Installation 3-2-1.Piping Materials and Joints Used 3-2-2.Processing of Piping Materials Fig. 3-2-1Flare processing dimensions Table 3-2-3Dimensions related to flare processing for R410A Outer A (mm) Nominal Table 3-2-6Flare and flare nut dimensions for R22 Fig. 3-2-2Relations between flare nut and flare seal surface 2.Flare Connecting Procedures and Precautions Table 3-2-7Tightening torque of flare for R410A [Reference values] Tightening torque 3-3.Tools 3-3-1.Required Tools 3-4.Recharging of Refrigerant 3-5.Brazing of Pipes 3-5-1.Materials for Brazing 3-5-2.Flux 3-5-3.Brazing Never use gas other than Nitrogen gas 4. CONSTRUCTION VIEWS 4-1.Indoor Unit 4-2.Outdoor Unit 5. WIRING DIAGRAM 5-1.Indoor Unit 5-2.Outdoor Unit 6-1.Indoor Unit 6-2.Outdoor Unit (RAS-10SAV-E, RAS-10SAV-A) Rating 7. REFRIGERANT CYCLE DIAGRAM 7-1.Refrigerant Cycle Diagram Operation Data 8. CONTROL BLOCK DIAGRAM 8-1.Indoor Unit 8-2.Outdoor Unit (Inverter Assembly) MICRO-COMPUTERBLOCKDIAGRAM For INDOOR UNIT 9. OPERATION DESCRIPTION 9-1.Outline of Air Conditioner Control Operation Description Auto Restart Function Remote Controller and Its Fuctions 9-2.Operation Description Page Indication Fan speed (Table 1) Indoor fan and air flow rate Page Page Page Page Page Page Page Page Page Page Page Page 9-3.Auto Restart Function 9-3-1.How to Set the Auto Restart Function 9-3-2.How to Cancel the Auto Restart Function 9-3-3.Power Failure During Timer Operation 9-4.Remote control 4.DRY OPERATION (COOLING ONLY) 5.Hi-POWEROPERATION 6.ECO OPERATION Note: 7.TEMPORARY OPERATION 9.PRESET OPERATION 10.AUTO RESTART OPERATION Setting 11.QUIET OPERATION 12. COMFORT SLEEP OPERATION 9-4-3.Name and Functions of Indications on Remote Controller 10. INSTALLATION PROCEDURE 10-1-2.Optional installation parts Part Parts name Q'ty Code 10-1-3.Accessory and installation parts Others Name 10-1-4.Installation/Servicing Tools <Changes in the product and components New tools for R410A Applicable to R22 model Changes 10-2.Indoor Unit <When the installation plate is directly mounted on the wall 10-2-3.Electrical work CAUTION NOTE 10-2-4.Wiring connection <How to connect the connecting cable 10-2-5.Piping and drain hose installation <Piping and Drain Hose Forming 1. Die-cuttingFront panel slit <How to fix the Drains Cap <In case of right or left piping <Left-handconnection with piping Bend the connection pipe within a radius of 30 mm (∅ 6.35) 40 mm (∅ 9.52) <In case of bottom right or bottom left piping 10-3.Outdoor Unit (Unit : Nám) 10-3-3.Evacuating Tightening torque Tightening torque of flare pipe connections <Shaping pipes AIR PURGE <Packed valve handling precautions Hexagonal wrench is required <Stripping length of connection cable 10-3-4.Wiring connection Information <How to set the auto restart 11. HOW TO DIAGNOSE THE TROUBLE 10-1.First Confirmation 11-2.Primary Judgment 11-3.Judgment by Flashing LED of Indoor Unit 11-4. Self-Diagnosisby Remote Controller (Check Code) 11-4-1.How to Use Remote Controller in Service Mode 11-4-2.Caution at servicing Page 11-5.Judgement of Trouble by Every Symptom Page (3)Only the indoor fan does not operate. <Check procedure (4)Indoor fan motor starts rotating by turning on power supply alone. <Cause <Confirmation procedure (5) Troubleshooting for remote control 11-5-2.Wiring Failure (Interconnecting and serial signal wire) (1)Outdoor unit does not operate 11-6.Check Code 1C (Miswiring in indoor/outdoor units) and 1E 11-7.How to Diagnose Trouble in Outdoor Unit 11-8.How to Check Simply the Main Parts (3) Checking procedure Procedure Check Point (Symptom) Causes <Sensor characteristic table 11-8-3.Indoor unit (Other parts) Part name Checking procedure 11-8-4.Outdoor unit 11-8-5.Checking Method for Each Part 11-9.How to Simply Judge Whether Outdoor Fan Motor is Good or Bad 12. PART REPLACEMENT 12-1.Indoor Unit No Part name No. Part name 12-2.Microcomputer Solder side 12-3-1.Outdoor Unit Be careful when checking the inverter because high-voltage circuit is incorporated in it This capacitor has mass capacity Therefore, it is dangerous that a Page Page Requirement: Perform the work on a corrugated cardboard, cloth, etc. to prevent scratches to the product Q’ty 13. EXPLODED VIEWS AND PARTS LIST 13-1.Indoor Unit (E-PartsAssy)