Toshiba MMU-AP0121MH P13 Outdoor liquid back detection error 1. PMV1/PMV2 error, P15

Page 84

Check code name

Check code name

Cause of operation

[P13]

Outdoor liquid back detection error 1. PMV1/PMV2 error

 

2.

Pd sensor, Ps sensor error

 

3.

Clogging of SV2 circuit

 

4.

Clogging of SV3B circuit, balance pipe

 

5.

Leakage of main discharge pipe

 

6.

Outdoor I/F P.C. board error

Check code name

Check code name

 

Cause of operation

 

 

 

[P15]

Gas leak detection

1. Outdoor unit service valve closed

 

TS condition (Auxiliary code : 01)

2. Outdoor PMV error

 

 

3.

TS1 sensor error

 

 

4.

Refrigerant shortage, clogging refrigerant

 

 

 

circuit

 

 

5.

4-way valve error

 

 

6.

SV4 circuit error

 

 

 

 

Are connections of outdoor

NO

 

PMV1/PMV2 connectors correct?

 

 

YES

 

 

 

 

 

NO

Are operations of outdoor

 

PMV1/PMV2 normal?

 

Correct connector connection.

(CN300, CN301)

PMV error

Are service valves at gas and

NO

liquid side fully opened?

 

 

YES

 

 

 

 

 

 

Is outdoor PMV1, 2 normal?

 

1. Connector connection

NO

Open service valves fully.

YES

2. Wiring

 

3. Coil

Connectors CN300, 301 White

4. Valve body

 

Repair outdoor PMV.

Are characteristics of Pd sensor/Ps sensor

NO

 

output voltage normal?

 

YES

 

Pd sensor/Ps sensor error

5. Outdoor I/F P.C. board

YES

84

Is SV2 valve coil correctly connected?

NO

 

 

 

YES

 

 

 

 

 

YES

Is there no miswiring or

 

misinstallation on TS1 and TS2 sensors?

 

Correct connector connection.

(CV2: CN302)

Correct miswiring/installation

Are characteristics of

TS2 sensor resistance normal?

YES

Does not discharge

refrigerant gas bypass to suction side

through 4-way valve?

NO

Replace TS2 sensor. Refer to outdoor unit temperature

sensor characteristics-3.

YES

Check and replace 4-way valve and coil.

NONO

Check I/F P.C. board.

Is there no leakage of

SV41 and 42 valve circuits?

YES

Check mispiping of discharge gas/ suction gas main pipes.

Normal

Is the flow selector unit normal?

Normal

Refrigerant shortage,

clogging, pipe breakage.

NO

Repair SV41 and SV42 circuits.

( Coil, valve body, ) disconnection of cable, etc

Abnormal

Correct piping.

Abnormal

Repair the flow selector unit.

(Check there is no clogging and pipe breakage, and then recharge refrigerant.)

Page 83 Page 85
Image 84
Page 83 Page 85
Contents
Compact 4-Way Air Discharge Cassette Type Contents Safety Caution Check the following items after reinstallation Catch the inner cablesFire is caused at user’s side Metal section Earth positionSafety Caution Concerned to New Refrigerant Pipe MaterialsPiping Flare nutR410A Conventional air Air conditioner installation Conditioner installationTools General tools Conventional tools can be usedRecharge of Refrigerant Environment4mm-hexagonal wrench is required Cylinder with siphonSpace required for Installation and servicing Wired remoteConstruction Views External Views Drain-up standing-up sizeWiring Diagram For Indoor unitMCC-1402 Control P.C. boardParts Rating Parts RatingName of Each Part ModelParts Name of Remote Controller Display sectionRemote controller sensor Operation sectionButton Wind direction and SwingTurn on the main power switch and/or the leakage breaker Correct UsagePreparation StopAutomatic Operation Super Heat Recovery Type Only When restarting the operation after stopStart Timer Operation Timer operationCancel of timer operation To select SET TimeAdjustment of Wind Direction How to set up the air directionHow to start swinging How to stop swingingInformation Air Conditioner Operations and Performance When the Following Symptoms are Found StandbyPrecautions for Safety New Refrigerant Air Conditioner InstallationTo Disconnect the Appliance from Main Power Supply Connect all of the installation wiring correctlySelection of Installation Place Installation spaceInstallation space Installable ceiling height listInstallation of Indoor Unit Case of wireless typeDimensional view Ceiling opening and installation of hanging bolts Installation of ceiling panel Sold separatelyInstallation of hanging bolt Installation of remote controller Sold separatelyDrain Piping Work Piping material and dimensions Refrigerant PipingThermal insulating process Permissible pipe length and permissible height differenceElectric Work Connection of refrigerant pipeAirtight test/Air purge, etc Open fully valves of the outdoor unit Gas leak checkPower supply specifications Indoor unit power supply *1Indoor/Outdoor inter-unit wiring, Central controller wiring Remote controller wiring *4Applicable Controls Case of installation to high ceiling Case of remote controller-less Group controlChange of lighting time of filter sign Increased heating effectHow to execute test operation Case of wireless remote controllerCase of wired remote controller Test RUNTroubleshooting Confirmation of error historyCheck code list Confirmation and check Check methodTroubleshooting Error detected by TCC-LINK central control deviceMaintenance Daily maintenanceNew check code Way Air Discharge Cassette TypeRefrigerating Cycle Diagram Functional part name Functional outlineControl Specifications Outline of specifications RemarksRemote controller Control outline Command Control OutlineReset conditions ValueTCB-AX21E Central control mode 1 Cannot operate Central control modeCentral control mode 4 Cannot select mode Procedure Execute the setup operation while the unit stops Applied ControlDescription At shipment HEAT, Heat → CoolApplied Control in Indoor Unit Indoor unit capacityRemote location ON/OFF control box TCB-IFCB-4E Ventilating fan control from remote controller WiringFunction OperationPower peak-cut from indoor unit Using the setup tempButton, set to the setup data Leaving-ON prevention controlTroubleshooting Troubleshooting SummaryBefore troubleshooting Troubleshooting procedureCheck code list Check MethodAuxiliary code Judging deviceMG-SW Sensor block displayError detected by TCC-LINK central control device Check code Outdoor 7-segment display Auxiliary codeCheck code Troubleshooting by Check Display on Remote Controller Case of wired remote controller RBC-AMT31EConfirmation of error history Procedure DescriptionCase of central remote controller TCB-SC642TLE Check code Outdoor 7-segment displayCheck code Auxiliary code RemoteSetup method of No. capacity-over Detection Check codeMain Outdoor 7-segment display Remote Convenient functionsMain Outdoor 7-segment display Check code Auxiliary codeRemote DetectedRemote Check code Check item positionStatus Error detection condition Check item position Detected MainPosition Remote Check code Main Outdoor 7-segment display H07Check all the outdoor units in the corresponding line Check clogging of oil equation pipe between compressorsCheck code Main Outdoor 7-segment display Remote H16L30 Detected indoor address L31 P01 P03 P04 TS error judgment standard temperature NameHeating Remote Check code Auxiliary code Error detection condition Check item position Outdoor 7-segment display Check code nameOutdoor 7-segment display Detected position Device Check codeDisplay on Central controlHow to check inverter output How to check resistance of compressor windingHow to check the outdoor fan motor Measured position CriteriaDiagnosis Procedure for Each Check Code E03E04 E02E06 Decreased number of indoor units E07E08 E12E15 E09 Duplicated masterE16 E18E19 Reference∗ 1 How to clear the error E20E23 E25E31 F01F02 F03F04 TD1 sensor error F05 TD2 sensor errorF06 TE1 sensor error F08 To sensor errorF29 Indoor other error F15 Outdoor temp sensor miscablingTE1, TL F23F31 H02H01 H03H06 Low-pressure protective operation Leakage check for SV3C valve Clogging for SV3E valveClogging check for SV3D valve Clogging check for oil-equalization circuit H08Oil level detective circuit system error TK3 temperature detective circuit errorH16 TK4 temperature detective circuit error L04L05 L03L07 Group line in individual indoor unit L10L17 L08 L18 L29 L20 L28P01 Indoor fan motor error L30 Interlock in indoor unitP03 L31P05 Open phase, negative phase P04 ActuationHigh-pressure SW Auxiliary code Compressor 1 sideP07 Heat sink overheat error P10 Indoor overflow errorIndoor fan motor error P12P13 Outdoor liquid back detection error 1. PMV1/PMV2 error P15Gas leak detection TS condition Auxiliary codeDischarge temp TD2 error P15 Gas leak detectionP17 TD condition Auxiliary codeP19 Way valve operation error P20 High-pressure protective operationJudgment criteria P22 Outdoor fan Ipdu error Auxiliary code 0 ∗P26 Tr short-circuit protection error Detective circuit errorP29 P31Check procedure in case of stop with trouble How to read the check monitor Segment displaySegment Display Function Segment display on the outdoor unit Interface P.C. boardSW01 SW02 SW03 Display contents There is auxiliary code Check code ∗ ∗ ∗ for 3 seconds Data display of outdoor cycle Displayed on each outdoor unit SW03 SW02 Indoor address Segment display aSensor Characteristics Temperature sensor characteristicsW01 SW02 SW03 Display contents Segment display Segment display A, BConfiguration of Control Circuit Wired remote controller Up to 2 unitsWeekly timer Indoor UnitConnection of wireless remote controller KitCompact 4-way Air Discharge Cassette Type Wireless Cassette Type ControllerRemote Compact4-way Air Discharge Connection of both remoteAir Discharge TypeMCC-1402 Compact 4-way CassetteOptional Connector Specifications of Indoor P.C. Board Function Connector Pin Specifications RemarksPart name Procedure Remarks DetachmentsPreparing work Attachment100 No. Part name Procedure Remarks 101102 No. Part name Procedure 103Fan guard 1. Detachment Bell mouth 1. Detachment104 Fan motor 1. Detachment105 Drain pump 1. DetachmentDetails of sensor lead wire drawing 106Arrow view B Details of a partExchanger Recover refrigerant gas 107Heat 10. P.C. Board Exchange Procedures Exchange of P.C. Board for Indoor ServiceExchange procedure 108Procedure 1 Readout setup contents from Eeprom Remote controller operation diagramProcedure 2 Exchange of P.C. board for service 110Procedure 3 Writing-in of setup contents to Eeprom Eeprom layoutMake a note of the setup contents. Item code list Example Exploded Views and Parts List Ceiling Panel113 DescriptionCompact 4-way Air Discharge Cassette Type MMU-AP0071MH, AP0091MH, AP0121MH, AP0151MH, AP0181MH211 114115 Description Remarks Model Name0071MH 0091MH 0121MH 0151MH 0181MH 116 Description Model NameToshiba Carrier Corporation
Top Page Image Contents