P01 P03 P04 | Toshiba MMU-AP0121MH, MMU-AP0181MH, MMU-AP0151MH

Toshiba MMU-AP0121MH, MMU-AP0181MH, MMU-AP0151MH, MMU-AP0091MH, MMU-AP0071MH P01 P03 P04

Page 59

Check code

Main	Outdoor 7-segment display
remote
remote	Check code	Auxiliary code
controller	Check code	Auxiliary code

P01	—	—

P03	P03	—

P04	P04	01: Compressor 1 side
		02: Compressor 2 side

P05	P05	01: Power supply open phase
		02: Power supply negative phase

Detected	Check code name	Status	Error detection condition		Check item (position)
position	Check code name	Status	Error detection condition		Check item (position)
position
Indoor	Indoor fan motor error	Corresponding		•	Check the lock of fan motor (AC fan).
		unit only stops.		•	Check cabling.
				•	Check cabling.

I/F	Discharge temp TD1 error	All stop	Discharge temp (TD1) exceeded 115°C.	•	Check full opening of outdoor service valves (Gas side, Liquid side).
				• Check clogging of outdoor PMV. (PMV1,2)
				• Check characteristics of TD1 sensor resistance value.
				•	Check refrigerant shortage.
				•	Check 4-way valve error.
				•	Check leakage of SV41 circuit.
				• Check SV4 circuit. (Miswiring and misinstallation of SV41 and SV42)
				•	Check leakage of SV5 circuit.
				• Check leakage of SV6 circuit. (Capillary clogging, valve operation error)
				•	Check mispiping of discharge gas/suction gas main pipe.
				•	Check Flow selector unit.
					Check leakage of SVD valve and SVS valve.
					(Check leakage of SVDD valve and SVSS.)
					Check mispiping of FS unit connecting pipe (Suction gas/Discharge gas),
					wiring between FS unit and indoor unit, and connection of connectors.
					Check miswiring of SVS/SVD valves.

I/F	Actuation of high-pressure	All stop	High-pressure SW actuated.	•	Check Pd pressure sensor error.
	SW			•	Check full opening of outdoor service valves (Gas side, Liquid side).
				•
				•	Check outdoor fan error.
				•	Check outdoor fan motor error.
				• Check clogging of outdoor PMV. (PMV1,2)
				•	Check clogging of indoor/outdoor heat exchangers.
				•	Check short-circuiting of outdoor suction/discharge air.
				•	Check clogging of SV2 circuit.
				• Check outdoor P.C. board (I/F) error.
				• Check indoor fan system error. (Cause of air volume decrease)
				• Check opening of indoor PMV.
				•	Check miscabling of communication line between indoor and outdoor.
				•	Check operation error of check valve of discharge pipe.
				•	Check SV4 valve circuit.
				•	Check SV5 valve circuit.
				•	Check refrigerant overcharge.
				•	Check mispiping of discharge gas/suction gas main pipe.
				•	Check circuit clogging at auxiliary heat exchanger side.
					(PMV3, SV12, check valve)
				•	Check FS unit.
					Check clogging of SVD valve and operation error.
					Check wiring inside of FS unit. (SVD/SVS coil miswiring, etc.)
					Check wiring between FS unit and indoor unit.
					(Miswiring, Disconnection, Wiring missing)

I/F	Open phase negative	All stop	• Open phase was detected when the	• Check outdoor power line.
	phase		power turned on.	• Check outdoor P.C. board (I/F) error.
			• Negative phase was detected when	• Check outdoor P.C. board (I/F) error.
			• Negative phase was detected when
			the power turned on.

Image 59

Contents

Compact 4-Way Air Discharge Cassette Type Contents Safety Caution Metal section Earth position Check the following items after reinstallationCatch the inner cables Fire is caused at user’s sideFlare nut Safety Caution Concerned to New RefrigerantPipe Materials PipingGeneral tools Conventional tools can be used R410A Conventional air Air conditioner installationConditioner installation ToolsCylinder with siphon Recharge of RefrigerantEnvironment 4mm-hexagonal wrench is requiredDrain-up standing-up size Space required for Installation and servicingWired remote Construction Views External ViewsControl P.C. board Wiring DiagramFor Indoor unit MCC-1402Model Parts RatingParts Rating Name of Each PartDisplay section Parts Name of Remote ControllerWind direction and Swing Remote controller sensorOperation section ButtonStop Turn on the main power switch and/or the leakage breakerCorrect Usage PreparationStart Automatic Operation Super Heat Recovery Type OnlyWhen restarting the operation after stop To select SET Time Timer OperationTimer operation Cancel of timer operationHow to stop swinging Adjustment of Wind DirectionHow to set up the air direction How to start swingingInformation Air Conditioner Operations and Performance Standby When the Following Symptoms are FoundConnect all of the installation wiring correctly Precautions for SafetyNew Refrigerant Air Conditioner Installation To Disconnect the Appliance from Main Power SupplyInstallable ceiling height list Selection of Installation PlaceInstallation space Installation spaceDimensional view Installation of Indoor UnitCase of wireless type Installation of remote controller Sold separately Ceiling opening and installation of hanging boltsInstallation of ceiling panel Sold separately Installation of hanging boltDrain Piping Work Permissible pipe length and permissible height difference Piping material and dimensionsRefrigerant Piping Thermal insulating processOpen fully valves of the outdoor unit Gas leak check Electric WorkConnection of refrigerant pipe Airtight test/Air purge, etcRemote controller wiring *4 Power supply specificationsIndoor unit power supply *1 Indoor/Outdoor inter-unit wiring, Central controller wiringApplicable Controls Increased heating effect Case of installation to high ceilingCase of remote controller-less Group control Change of lighting time of filter signTest RUN How to execute test operationCase of wireless remote controller Case of wired remote controllerConfirmation and check Check method TroubleshootingConfirmation of error history Check code listError detected by TCC-LINK central control device TroubleshootingWay Air Discharge Cassette Type MaintenanceDaily maintenance New check codeFunctional part name Functional outline Refrigerating Cycle DiagramControl Outline Control SpecificationsOutline of specifications Remarks Remote controller Control outline CommandValue Reset conditionsTCB-AX21E Central control mode 4 Cannot select mode Central control mode 1 Cannot operateCentral control mode Applied Control Procedure Execute the setup operation while the unit stopsHEAT, Heat → Cool Description At shipmentRemote location ON/OFF control box TCB-IFCB-4E Applied Control in Indoor UnitIndoor unit capacity Operation Ventilating fan control from remote controllerWiring FunctionLeaving-ON prevention control Power peak-cut from indoor unitUsing the setup temp Button, set to the setup dataTroubleshooting procedure TroubleshootingTroubleshooting Summary Before troubleshootingJudging device Check code listCheck Method Auxiliary codeSensor block display MG-SWCheck code Outdoor 7-segment display Auxiliary code Error detected by TCC-LINK central control deviceCheck code Procedure Description Troubleshooting by Check Display on Remote ControllerCase of wired remote controller RBC-AMT31E Confirmation of error historyCase of central remote controller TCB-SC642TLE Remote Check codeOutdoor 7-segment display Check code Auxiliary codeConvenient functions Setup method of No. capacity-over DetectionCheck code Main Outdoor 7-segment display RemoteDetected Main Outdoor 7-segment displayCheck code Auxiliary code RemoteCheck item position Remote Check code Position Remote Status Error detection condition Check item position Detected Main Check clogging of oil equation pipe between compressors Check code Main Outdoor 7-segment displayH07 Check all the outdoor units in the corresponding lineH16 Check code Main Outdoor 7-segment display RemoteL30 Detected indoor address L31 P01 P03 P04 Heating TS error judgment standard temperatureName Remote Check code Auxiliary code Outdoor 7-segment display Check code name Error detection condition Check item positionCentral control Outdoor 7-segment display Detected positionDevice Check code Display onMeasured position Criteria How to check inverter outputHow to check resistance of compressor winding How to check the outdoor fan motorE02 Diagnosis Procedure for Each Check CodeE03 E04E07 E06 Decreased number of indoor unitsE09 Duplicated master E08E12 E15Reference E16E18 E19E25 ∗ 1 How to clear the errorE20 E23F03 E31F01 F02F08 To sensor error F04 TD1 sensor errorF05 TD2 sensor error F06 TE1 sensor errorF23 F29 Indoor other errorF15 Outdoor temp sensor miscabling TE1, TLH03 F31H02 H01H06 Low-pressure protective operation Clogging check for SV3D valve Leakage check for SV3C valveClogging for SV3E valve H08 Clogging check for oil-equalization circuitTK3 temperature detective circuit error Oil level detective circuit system errorL03 H16 TK4 temperature detective circuit errorL04 L05L08 L07 Group line in individual indoor unitL10 L17L28 L18L29 L20L31 P01 Indoor fan motor errorL30 Interlock in indoor unit P03Auxiliary code Compressor 1 side P05 Open phase, negative phaseP04 Actuation High-pressure SWP12 P07 Heat sink overheat errorP10 Indoor overflow error Indoor fan motor errorTS condition Auxiliary code P13 Outdoor liquid back detection error 1. PMV1/PMV2 errorP15 Gas leak detectionTD condition Auxiliary code Discharge temp TD2 errorP15 Gas leak detection P17Judgment criteria P19 Way valve operation errorP20 High-pressure protective operation Auxiliary code 0 ∗ P22 Outdoor fan Ipdu errorP31 P26 Tr short-circuit protection errorDetective circuit error P29Segment display on the outdoor unit Interface P.C. board Check procedure in case of stop with troubleHow to read the check monitor Segment display Segment Display FunctionSW01 SW02 SW03 Display contents There is auxiliary code Check code ∗ ∗ ∗ for 3 seconds SW03 SW02 Indoor address Segment display a Data display of outdoor cycle Displayed on each outdoor unitSegment display A, B Sensor CharacteristicsTemperature sensor characteristics W01 SW02 SW03 Display contents Segment displayIndoor Unit Configuration of Control CircuitWired remote controller Up to 2 units Weekly timerCompact 4-way Air Discharge Cassette Type Connection of wireless remote controllerKit Compact4-way Air Discharge Connection of both remote WirelessCassette Type Controller RemoteCassette Air DischargeType MCC-1402 Compact 4-wayFunction Connector Pin Specifications Remarks Optional Connector Specifications of Indoor P.C. BoardAttachment Part name Procedure RemarksDetachments Preparing work100 101 No. Part name Procedure Remarks102 Bell mouth 1. Detachment No. Part name Procedure103 Fan guard 1. DetachmentFan motor 1. Detachment 104Drain pump 1. Detachment 105Details of a part Details of sensor lead wire drawing106 Arrow view BHeat Exchanger Recover refrigerant gas107 108 10. P.C. Board Exchange ProceduresExchange of P.C. Board for Indoor Service Exchange procedureRemote controller operation diagram Procedure 1 Readout setup contents from Eeprom110 Procedure 2 Exchange of P.C. board for serviceEeprom layout Procedure 3 Writing-in of setup contents to EepromMake a note of the setup contents. Item code list Example Description Exploded Views and Parts ListCeiling Panel 113114 Compact 4-way Air Discharge Cassette TypeMMU-AP0071MH, AP0091MH, AP0121MH, AP0151MH, AP0181MH 2110071MH 0091MH 0121MH 0151MH 0181MH 115Description Remarks Model Name Description Model Name 116Toshiba Carrier Corporation

Toshiba MMU-AP0121MH, MMU-AP0181MH, MMU-AP0151MH, MMU-AP0091MH, MMU-AP0071MH P01 P03 P04

Check code

remote

Check code

Auxiliary code

P01

P03

P04