Toshiba RAS-10YAV-E, RAS-13YKV-E, RAS-10YKV-E, RAS-13YAV-E service manual Contents

Page 2

	CONTENTS
1.	SPECIFICATIONS	3
2.	REFRIGERANT R410A	6
3.	CONSTRUCTION VIEWS	14
4.	WIRING DIAGRAM	16
5.	SPECIFICATIONS OF ELECTRICAL PARTS	18
6.	REFRIGERANT CYCLE DIAGRAM	19
7.	CONTROL BLOCK DIAGRAM	21
8.	OPERATION DESCRIPTION	23
9.	INSTALLATION PROCEDURE	36
10.	HOW TO DIAGNOSE THE TROUBLE	40
11.	HOW TO REPLACE THE MAIN PARTS	59
12.	EXPLODED VIEWS AND PARTS LIST	69

– 2 –

Image 2

Contents AIR-CONDITIONER Contents RAS-10YKV-E/RAS-10YAV-E SpecificationsSpecifications RAS-13YKV-E/RAS-13YAV-E RAS-13YKV-ECooling Heating Operation Characteristic CurveCapacity Variation Ratio According to Temperature CoolingRefrigerant R410A Safety During Installation/ServicingRefrigerant Piping Installation Piping Materials and Joints UsedOuter diameter mm R410A R22 Processing of Piping Materials1 Thicknesses of annealed copper pipes Thickness mm Nominal diameter5 Flare and flare nut dimensions for R410A 3 Dimensions related to flare processing for R410A Outer4 Dimensions related to flare processing for R22 Outer Outer Thickness Dimension mmNm kgfcm Wrenches available on the marketRequired Tools R410A air conditioner Conventional air InstallationTools General tools Conventional tools can be used1 Configuration of refrigerant charging Recharging of RefrigerantFlux Brazing of PipesMaterials for Brazing Brazing Never use gas other than Nitrogen gasRAS-10YKV-E, RAS-13YKV-E Construction ViewsIndoor Unit Outdoor Unit RAS-10YAV-E RAS-13YAV-ECheck items Diagnosis result Wiring Diagram1 Simple check points for diagnosing faults RAS-10YAV-E, RAS-13YAV-E V. Pulse Modulating ValveParts name Model name Rating Specifications of Electrical PartsParts name Type Specifications RAS-10YKV-E/RAS-10YAV-E RAS-13YKV-E/RAS-13YAV-E Refrigerant Cycle DiagramRefrigerant Cycle Diagram Heating Operation DataCooling Control Block Diagram Remote ControllerMCC808 P.C.B AssemblyRAS Operation Description Outline of Air Conditioner ControlCurrent Release Control Power Factor Improvement ControlCapacity Control 1 Compressor revolution rangeLouver Control Prevent-Freezing Control5. P. M. V. Pulse Modulating Valve Indoor Fan Control DC Fan MotorCOOL, DRY Description of Operation CircuitOutdoor Fan Control DC Fan Motor HeatCurrent release control Outdoor temperature release controlPrevent-freezing control Rps Louver control5 Setting of air flow ECONO. operation controlStarting and in stability Heating OperationBasic control Cold draft preventing controlDefrost control Temporary Auto Operation Temporary OperationAutomatic Operation Temporary Cooling OperationOperation Motion How to Set the Auto RestartAuto Restart Function How to Cancel the Auto Restart Case of Power Failure during the Timer OperationName of Indications on Remote Controller Remote ControllerParts Name of Remote Controller START/STOP buttonRemark per EMC Directive 89/336/EEC Installation ProcedureSafety Cautions Optional Installation Parts Indoor UnitElectrical Work Outdoor Unit Refrigerant Piping ConnectionConfirmation of Power Voltage HOW to Diagnose the TroubleConfirmation of Power Supply First ConfirmationOperation of air conditioner Description Primary JudgmentOperation Which is not a Trouble Program Operation Judgment by Flashing LED of Indoor Unit Check Block display Description for self-diagnosis CodeSelf-Diagnosis Self-Diagnosis by Remote Controller Check CodeOperation Control by Rated Frequency in Service Mode ButtonBlock distinction Check outdoor heat exchanger temp Confirmation procedure Judgment of Trouble by Every SymptomIndoor Unit Including Remote Controller Power is not turned on Does not operate entirelyOnly the indoor fan does not operate YESCause How to examine whether remote controller is good or bad Outdoor unit does not operate Wiring Failure Interconnecting and Serial Signal WireCheck procedure Select phenomena described below Check Code 1C Miswiring in indoor/outdoor units and 1E Check procedureDiagnosis/Process flowchart Contents Summary How to Diagnose Trouble in Outdoor UnitSummarized Inner Diagnosis of Inverter Assembly Operating precautions How to Check Simply the Main PartsHow to Check the P.C. Board Indoor Unit Inspection proceduresCheck procedures Procedure Check point Symptom CausesBottom View Sensor characteristic table10-8-2. P.C. Board Layout Outdoor Unit Part name Checking procedureIndoor Unit Other Parts Position Resistance valueChecking Method for Each Part Case that product is goodHow to Simply Judge Whether Outdoor Fan Motor is Good or Bad Symptom11-1 Indoor Unit HOW to Replace the Main PartsPart name Procedure Remarks To assemble the front panelRemoving Louver motor Microcomputer Board layoutAttachment No. Part name Procedure RemarksDetachment Bundled Be careful to check the inverter becauseHigh-voltage circuit is incorporated in it PartLead wires Propeller Flange nut is loosened by turning clockwise Check that coil at B room side Red Pulse modulating valve has a roomSide and B room side. After mounting it Perform work on a corrugated cardboardPart name Procedure Remarks Parts name Qty RemarksMCC-808 Location Exploded Views and Parts ListPart Description Part Description 222 43T49023 Holder of Plate of EVA-SEAL 11, 13 12 24, 25 26, 27 12-3. P.C. Board Layout Toshiba Carrier Corporation Turn 208 10YKV-E 221 Cushion, Rubber Valve, 4-way To Sensor Ø6

CONTENTS