Toshiba RAS-13UKV-E2 Check Code 1C Miswiring in indoor/outdoor units and 1E, Check procedure

Page 65

FILE NO. SVM-03008

10-6. Check Code 1C (Miswiring in indoor/outdoor units) and 1E

<Check procedure>

1C

1E

Gas leakage,

 

Discharge temp. error,

disconnection of TS/TC

 

gas leakage

sensors (Check code 02, 1C)

 

(Check code 03, 1E)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Valve drive check

 

 

NO

 

 

Is coil of the pulse modulation valve

(P.M.V.) correctly set?

 

 

YES

 

 

 

 

 

 

NO

Is connector of coil connected to inverter?

YES

Is positioning sound of valve (sound hitting to stopper) heard from valve when the air conditioner starts the operation after turning off power of the air conditioner once?

NOTE :

After all the operations stopped by the remote control, the power keeps

being supplied to outdoor unit for approx. 3 minutes. If operating the air NO

conditioner by remote control again just after all the operations stopped by the remote control, positioning of the valve is not performed when outdoor unit

is activated because supplying power to the outdoor unit is not interrupted. After positioning of the valve, activate the compressor and the outdoor fan. It takes approx. 7 seconds for positioning of the valve, and sound ticktack (hitting sound to stopper) is heard for approx. 0.5 seconds at least of that period. As the sound is low, check sound by using screwdriver, etc.

YES

Are temp. sensors of indoor/outdoor units correctly set to the holder?

NOTE :NO The temperature sensors which are used to control electronic control valve

include indoor heat exchanger sensor (TC), outdoor heat exchanger temp. sensor (TE), and outdoor suction temp. sensor (TS).

YES

Set it correctly.

Set it correctly.

Replace coil valve.

Set it correctly.

Gas amount check and valve clogging check

Remove TC sensor connector from the P.C. board in indoor unit.(Remove connector from the P.C. board.)

Operate the air conditioner in COOL mode by TEMP button (Pi sound is heard if keeping pushed for 10 seconds.). The operation enters temporary operation mode which fixes opening degree of P.M.V. and No. of revolution of compressor. Check condensation at outlet of P.M.V., and then check operating pressure from the service port.

Existence of condensation at outlet of P.M.V.

YES

If there is condensation at outlet (1/4 inch=∅

6.35mm valve side),

 

the valve is clogged.

Replace valve.

Check the operating pressure from service port, and add gas if pressure is low.

Add gas.

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Contents AIR Conditioner Contents HOW to Replace the Main Parts Specifications SpecificationsCapacity Variation Ratio According to Temperature Operation Characteristic CurveRefrigerant Piping Installation Safety During Installation/ServicingRefrigerant R410A Piping materials and joints usedThickness mm 1 Thicknesses of annealed copper pipesOuter diameter mm R410A R22 Processing of piping materialsClutch type Wing nut type Flare tool for R410A Conventional flare toolWidth Diameter·m kgf·m ·m kgf·cmGeneral tools Conventional tools can be used ToolsRequired tools Recharging of Refrigerant 1 Configuration of refrigerant chargingBrazing of Pipes Types of flux Noncorrosive flux Characteristics required for fluxActivated flux Brazing215 Indoor UnitCover PV Outdoor UnitCheck Item Diagnosis Result Wiring Diagram1 Simple Check for Failure Diagnosis BRW Specifications Specification of Electrical PartsParts name RatingRefrigerant Cycle Diagram Refrigerant Cycle DiagramOperation Data Rays Control Block DiagramMCC813P.C.B Outdoor Unit Inverter AssemblyOutlined of Air Conditioner Control Operation DescriptionCapacity control Power factor improvement control1 Compressor revolution range Operation Model Revolution rps5. P.M.V. Pulse Modulating Valve Prevent-freezing controlLouver control Indoor fan control DC fan motorCompressor revolution rps From Outdoor fan control DC fan motorModel name Cooling capacity control Description of Operation CircuitBy indoor fan speed Limit for maximum compressor motor speedHeating operation Basic controlHeating capacity control Starting and in stability StabilityHigh-temp. release control Defrost controlTime Automatic operationTemporary button Control Temporary OperationTemporary auto operation Temporary cooling operationWhen the unit is on standby Not operating Operation How to set auto restart functionWhen the unit is in operation Operation Auto Restart FunctionFilter Check Lamp Remote Control and its Functions Temperature display Mode displayTimer and clock time display Hi-POWER displayFile NO. SVM-03008 To Disconnect the Appliance from the Main Power Supply Installation ProcedureSafety Cautions File NO. SVM-03008 Attach Installation Diagram of Indoor and Outdoor UnitsFixing bolt arrangement of outdoor unit Optional installation parts Part Parts name ’ty CodeOthers Accessory and installation partsName OptionNew tools for R410A Applicable to R22 model Changes Remote controller Installation placeMounting the installation plate Cutting a holeElectrical work When the installation plate is directly mounted on the wallChanging drain hose How to remove the Drains CapDie-cutting Front panel slit Case of right or left piping How to fix the Drains CapLeft-hand connection with piping Case of bottom right or bottom left pipingDrainage Run the drain hose sloped downwards Indoor unit fixingProjection margin in flaring a Unit mm Refrigerant piping connection FlaringR410A Conventional Copper pipe Tool used Copper pipe Tightening connectionOuter dia Tightening torque Copper pipe Using a vacuum pumpShaping pipes EvacuatingStripping length of connection cable Packed valve handling precautionsWiring connection How to set the auto restart Auto restart settingGas leak test Test operationFirst Confirmation HOW to Diagnose the TroubleOperation of air conditioner Description Primary JudgmentOperation which is not a trouble Program operation Judgment by Flashing LED of Indoor Unit IndoorindicationHow to use remote control in service mode Self-Diagnosis by Remote Control Check CodeCause of operation Short circuit. Replace Check Item Judgment of Trouble by Every SymptomTurn on power supply YES Only indoor fan motor does not operate Primary checkInspection procedure Troubleshooting for remote control Pipe clogging Check procedure Check Code 1C Miswiring in indoor/outdoor units and 1EAGE on P.C. board How to Diagnose Trouble in Outdoor UnitDiagnosis/Process flowchart Contents Summary How to Check Simply the Main PartsInspection procedures Main P.C. board partOPERATION, TIMER, PRE. DEF Check procedures Procedure Check points Symptom CausesBottom View Sensor characteristic table10-8-2. P.C. board layout Outdoor unit Part name Checking procedure Indoor unit Other parts Part name Checking procedureDiode check Igbt check Checking Method for Each Part Part name Checking procedureCause SymptomPart name Procedures Remarks HOW to Replace the Main PartsFigure below For position of the fan motor connector Microcomputer Detachment Requirement Connector is one Assembly to other parts Fan motor Perform work of item 1 of 1 Set take-out part of the lead wire of coil to Part name Board layout MCC-813 Indoor Unit E-Parts Assy Exploded Views and Parts ListFront Panel Assy Cabinet, Front, Assy Outdoor Unit E-Parts Assy Toshiba Carrier Corporation

RAS-13UAV-E2, RAS-13UKV-E2 specifications

The Toshiba RAS-13UKV-E2 and RAS-13UAV-E2 air conditioning units represent a significant step forward in both comfort and energy efficiency. Designed for residential and light commercial use, these models are packed with features that cater to diverse climate control needs while adhering to modern standards of sustainability.

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