Toshiba RAS-10YAV-E, RAS-13YKV-E, RAS-10YKV-E, RAS-13YAV-E service manual Assembly, Ras, MCC808 P.C.B

Page 22

MICRO-COMPUTER BLOCK DIAGRAM

RAS

7-2.

For INDOOR UNIT

-

220–230–240 V

~ 50/60 Hz

MCC808 (P.C.B)

OUTDOOR UNIT

Inddor unit

Rotor position

--E,RAS -10YAV13YAVE

UnitOutdoor(Inverter

send/receive

M.C.U

detect circuit

circuit

•

PWM synthesis function

Rotor position

Assembly)

•

Input current release control

detect circuit

Discharge

•

IGBT over-current detect control

Gate drive

•

Outdoor fan control

temp. sensor

circuit

•

High power factor correction control

Outdoor air

•

Inverter output frequency control

Gate drive

temp. sensor

•

A/D converter function

circuit

–

Suction temp.

•

P.M.V. control

Over current

22

•

Discharge temp. control

sensor

detect circuit

–

•

4-way valve control

Heat exchanger

•

Signal communication to indoor unit

Over current

temp.sensor

sensor

High Power

Clock

factor Correction

frequency

circuit

16MHz

Noise

Input current

Converter

Over current

Inverter

Outdoor

Filter

sensor

(AC

DC)

sensor

(DC

AC)

Fan motor

Driver circuit

Relay

Over current

Inverter

Compressor

of P.M.V.

circuit

sensor

(DC

AC)

4-way

P.M.V.valve

Image 22

Contents AIR-CONDITIONER Contents Specifications SpecificationsRAS-10YKV-E/RAS-10YAV-E 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 RefrigerantMaterials for Brazing Brazing of PipesFlux Brazing Never use gas other than Nitrogen gasIndoor Unit Construction ViewsRAS-10YKV-E, RAS-13YKV-E Outdoor Unit RAS-10YAV-E RAS-13YAV-E1 Simple check points for diagnosing faults Wiring DiagramCheck items Diagnosis result RAS-10YAV-E, RAS-13YAV-E V. Pulse Modulating ValveParts name Type Specifications Specifications of Electrical PartsParts name Model name Rating Refrigerant Cycle Diagram Refrigerant Cycle DiagramRAS-10YKV-E/RAS-10YAV-E RAS-13YKV-E/RAS-13YAV-E Cooling Operation DataHeating Control Block Diagram Remote ControllerRAS AssemblyMCC808 P.C.B 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 HeatPrevent-freezing control Outdoor temperature release controlCurrent release 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 OperationAuto Restart Function How to Set the Auto RestartOperation Motion 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 buttonSafety Cautions Installation ProcedureRemark per EMC Directive 89/336/EEC Optional Installation Parts Indoor UnitElectrical Work Outdoor Unit Refrigerant Piping ConnectionConfirmation of Power Voltage HOW to Diagnose the TroubleConfirmation of Power Supply First ConfirmationOperation Which is not a Trouble Program Operation Primary JudgmentOperation of air conditioner Description 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 Check procedure Select phenomena described below Wiring Failure Interconnecting and Serial Signal WireOutdoor unit does not operate Check Code 1C Miswiring in indoor/outdoor units and 1E Check procedureSummarized Inner Diagnosis of Inverter Assembly How to Diagnose Trouble in Outdoor UnitDiagnosis/Process flowchart Contents Summary Operating precautions How to Check Simply the Main PartsHow to Check the P.C. Board Indoor Unit Inspection proceduresCheck procedures Procedure Check point Symptom Causes10-8-2. P.C. Board Layout Sensor characteristic tableBottom View 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 layoutDetachment No. Part name Procedure RemarksAttachment 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 Part Description Exploded Views and Parts ListLocation 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