Toshiba MMU-AP0181MH, MMU-AP0151MH, MMU-AP0091MH, MMU-AP0071MH, MMU-AP0121MH E31, F01, F02, F03

Page 70

Check code

Check code name

 

Cause of operation

 

 

 

[E31]

IPDU communication error

1. Connection error of communication line

 

 

 

between IPDU and I/F P.C. board

 

 

2.

I/F P.C. board error

 

 

3.

IPDU P.C. board error

 

 

4.

External noise

 

 

 

 

Auxiliary code :

 

 

 

01: IPDU1 error

02: IPDU2 error

 

 

Check code

 

Check code name

 

 

Cause of operation

 

 

 

 

 

 

[F01]

 

Indoor TCJ sensor error

TCJ sensor Open/Short

 

 

 

 

 

 

 

Is TCJ sensor connector (CN102: Red)

NO

 

 

 

 

 

Correct connection of connector.

 

 

 

on indoor P.C. board normally connected?

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

03: IPDU1, 2 error

04: Fan IPDU error

05: IPDU1, fan IPDU error

06: IPDU2, fan IPDU error

07: All IPDU error or communication line error between IPDU-I/F P.C. boards, or outdoor I/F P.C. board error ∗ If the fan IPDU is abnormal, be sure to check the voltage output on the fan power supply P.C. board.

Are characteristics of TCJ sensor

resistance value normal?

YES

Check indoor main P.C. board.

Defect Replace

NO

Replace TCJ sensor.

Indoor unit temperature sensor characteristics

See Characteristics-2.

70

Is jumper lead setup of the outdoor I/F P.C. board correct?

(Jumper 7, 8, 9 ON)

YES

Are communication connectors

between I/F, fan power supply board, and IPDU connected?

NO

Is there no disconnection of communication line between I/F, fan power supply board, and IPDU?

NO

NO

Connect the jumper lead.

YES

Correct connection of connectors.

YES

Replace communication line.

Check code

 

Check code name

 

 

Cause of operation

 

 

 

 

 

 

[F02]

 

Indoor TC2 sensor error

TC2 sensor Open/Short

 

 

 

 

 

 

 

Is TC2 sensor connector (CN101: Black)

NO

 

 

 

 

 

Correct connection of connector.

 

 

 

on indoor P.C. board normally connected?

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is there voltage deflection between

4 and 5 pins of CN600 on I/F P.C. board?

(Measurement with tester: DC 0 to 5V, 5 pin GND)

YES

Is there voltage deflection between

3 and 5 pins of CN600 on I/F P.C. board?

(Measurement with tester: DC 0 to 5V, 5 pin GND)

YES

NO

I/F P.C. board error

NO

IPDU P.C. board error

When IPDU (No.1, No.2) and

three fan IPDU do not return communication

Are characteristics of TC2 sensor

resistance value normal?

YES

Check indoor main P.C. board.

Defect Replace

NO

Replace TC2 sensor.

Indoor unit temperature sensor characteristics

See Characteristics-2.

On the fan power supply P.C. board,

NO

1) CN503: Between 1 and 5 pins 12V

 

2)CN503: Between 2 and 5 pins 7V

3)Between +5V and GND at the side of CN505: 5V

YES

Replace P.C. board according to auxiliary code.

Replace fan power supply P.C. board.

Auxiliary code

P.C. board to be replaced

01

IPDU1

 

 

02

IPDU2

Check code

Check code name

 

 

Cause of operation

 

 

 

 

 

[F03]

Indoor TC1 sensor error

TC1 sensor Open/Short

 

 

 

 

 

 

Is TC1 sensor connector (CN100: Brown)

NO

 

 

 

 

 

Correct connection of connector.

 

 

 

on indoor P.C. board normally connected?

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

03

IPDU1, 2

04

Fan IPDU

 

 

05

IPDU1, fan IPDU

 

 

06

IPDU2, fan IPDU

 

 

07

IPDU1, 2, fan IPDU, I/F

Are characteristics of TC1 sensor

resistance value normal?

YES

Check indoor main P.C. board.

Defect Replace

NO

Replace TC1 sensor.

Indoor unit temperature sensor characteristics

See Characteristics-2.

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Contents Compact 4-Way Air Discharge Cassette Type Contents Safety Caution Fire is caused at user’s side Check the following items after reinstallationCatch the inner cables Metal section Earth positionPiping Safety Caution Concerned to New RefrigerantPipe Materials Flare nutTools R410A Conventional air Air conditioner installationConditioner installation General tools Conventional tools can be used4mm-hexagonal wrench is required Recharge of RefrigerantEnvironment Cylinder with siphonConstruction Views External Views Space required for Installation and servicingWired remote Drain-up standing-up sizeMCC-1402 Wiring DiagramFor Indoor unit Control P.C. boardName of Each Part Parts RatingParts Rating ModelParts Name of Remote Controller Display sectionButton Remote controller sensorOperation section Wind direction and SwingPreparation Turn on the main power switch and/or the leakage breakerCorrect Usage StopWhen restarting the operation after stop Automatic Operation Super Heat Recovery Type OnlyStart Cancel of timer operation Timer OperationTimer operation To select SET TimeHow to start swinging Adjustment of Wind DirectionHow to set up the air direction How to stop swingingInformation Air Conditioner Operations and Performance When the Following Symptoms are Found StandbyTo Disconnect the Appliance from Main Power Supply Precautions for SafetyNew Refrigerant Air Conditioner Installation Connect all of the installation wiring correctlyInstallation space Selection of Installation PlaceInstallation space Installable ceiling height listCase of wireless type Installation of Indoor UnitDimensional view Installation of hanging bolt Ceiling opening and installation of hanging boltsInstallation of ceiling panel Sold separately Installation of remote controller Sold separatelyDrain Piping Work Thermal insulating process Piping material and dimensionsRefrigerant Piping Permissible pipe length and permissible height differenceAirtight test/Air purge, etc Electric WorkConnection of refrigerant pipe Open fully valves of the outdoor unit Gas leak checkIndoor/Outdoor inter-unit wiring, Central controller wiring Power supply specificationsIndoor unit power supply *1 Remote controller wiring *4Applicable Controls Change of lighting time of filter sign Case of installation to high ceilingCase of remote controller-less Group control Increased heating effectCase of wired remote controller How to execute test operationCase of wireless remote controller Test RUNCheck code list TroubleshootingConfirmation of error history Confirmation and check Check methodTroubleshooting Error detected by TCC-LINK central control deviceNew check code MaintenanceDaily maintenance Way Air Discharge Cassette TypeRefrigerating Cycle Diagram Functional part name Functional outlineRemote controller Control outline Command Control SpecificationsOutline of specifications Remarks Control OutlineReset conditions ValueTCB-AX21E Central control mode Central control mode 1 Cannot operateCentral control mode 4 Cannot select mode Procedure Execute the setup operation while the unit stops Applied ControlDescription At shipment HEAT, Heat → CoolIndoor unit capacity Applied Control in Indoor UnitRemote location ON/OFF control box TCB-IFCB-4E Function Ventilating fan control from remote controllerWiring OperationButton, set to the setup data Power peak-cut from indoor unitUsing the setup temp Leaving-ON prevention controlBefore troubleshooting TroubleshootingTroubleshooting Summary Troubleshooting procedureAuxiliary code Check code listCheck Method Judging deviceMG-SW Sensor block displayError detected by TCC-LINK central control device Check code Outdoor 7-segment display Auxiliary codeCheck code Confirmation of error history Troubleshooting by Check Display on Remote ControllerCase of wired remote controller RBC-AMT31E Procedure DescriptionCase of central remote controller TCB-SC642TLE Check code Auxiliary code Check codeOutdoor 7-segment display RemoteMain Outdoor 7-segment display Remote Setup method of No. capacity-over DetectionCheck code Convenient functionsRemote Main Outdoor 7-segment displayCheck code Auxiliary code DetectedRemote Check code Check item positionDetected Main Status Error detection condition Check item positionPosition Remote Check all the outdoor units in the corresponding line Check code Main Outdoor 7-segment displayH07 Check clogging of oil equation pipe between compressorsCheck code Main Outdoor 7-segment display Remote H16L30 Detected indoor address L31 P01 P03 P04 Name TS error judgment standard temperatureHeating Remote Check code Auxiliary code Error detection condition Check item position Outdoor 7-segment display Check code nameDisplay on Outdoor 7-segment display Detected positionDevice Check code Central controlHow to check the outdoor fan motor How to check inverter outputHow to check resistance of compressor winding Measured position CriteriaE04 Diagnosis Procedure for Each Check CodeE03 E02E06 Decreased number of indoor units E07E15 E08E12 E09 Duplicated masterE19 E16E18 ReferenceE23 ∗ 1 How to clear the errorE20 E25F02 E31F01 F03F06 TE1 sensor error F04 TD1 sensor errorF05 TD2 sensor error F08 To sensor errorTE1, TL F29 Indoor other errorF15 Outdoor temp sensor miscabling F23H01 F31H02 H03H06 Low-pressure protective operation Clogging for SV3E valve Leakage check for SV3C valveClogging check for SV3D valve Clogging check for oil-equalization circuit H08Oil level detective circuit system error TK3 temperature detective circuit errorL05 H16 TK4 temperature detective circuit errorL04 L03L17 L07 Group line in individual indoor unitL10 L08L20 L18L29 L28P03 P01 Indoor fan motor errorL30 Interlock in indoor unit L31High-pressure SW P05 Open phase, negative phaseP04 Actuation Auxiliary code Compressor 1 sideIndoor fan motor error P07 Heat sink overheat errorP10 Indoor overflow error P12Gas leak detection P13 Outdoor liquid back detection error 1. PMV1/PMV2 errorP15 TS condition Auxiliary codeP17 Discharge temp TD2 errorP15 Gas leak detection TD condition Auxiliary codeP20 High-pressure protective operation P19 Way valve operation errorJudgment criteria P22 Outdoor fan Ipdu error Auxiliary code 0 ∗P29 P26 Tr short-circuit protection errorDetective circuit error P31Segment Display Function Check procedure in case of stop with troubleHow to read the check monitor Segment display 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 aW01 SW02 SW03 Display contents Segment display Sensor CharacteristicsTemperature sensor characteristics Segment display A, BWeekly timer Configuration of Control CircuitWired remote controller Up to 2 units Indoor UnitKit Connection of wireless remote controllerCompact 4-way Air Discharge Cassette Type Remote WirelessCassette Type Controller Compact4-way Air Discharge Connection of both remoteMCC-1402 Compact 4-way Air DischargeType CassetteOptional Connector Specifications of Indoor P.C. Board Function Connector Pin Specifications RemarksPreparing work Part name Procedure RemarksDetachments Attachment100 No. Part name Procedure Remarks 101102 Fan guard 1. Detachment No. Part name Procedure103 Bell mouth 1. Detachment104 Fan motor 1. Detachment105 Drain pump 1. DetachmentArrow view B Details of sensor lead wire drawing106 Details of a part107 Exchanger Recover refrigerant gasHeat Exchange procedure 10. P.C. Board Exchange ProceduresExchange of P.C. Board for Indoor Service 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 113 Exploded Views and Parts ListCeiling Panel Description211 Compact 4-way Air Discharge Cassette TypeMMU-AP0071MH, AP0091MH, AP0121MH, AP0151MH, AP0181MH 114Description Remarks Model Name 1150071MH 0091MH 0121MH 0151MH 0181MH 116 Description Model NameToshiba Carrier Corporation

MMU-AP0181MH, MMU-AP0071MH, MMU-AP0091MH, MMU-AP0151MH, MMU-AP0121MH specifications

The Toshiba MMU-AP series, consisting of models MMU-AP0121MH, MMU-AP0151MH, MMU-AP0091MH, MMU-AP0071MH, and MMU-AP0181MH, represents a significant advancement in the realm of power management and energy efficiency for a variety of applications. These modules are designed to optimize performance while ensuring minimal energy consumption, making them suitable for both commercial and industrial uses.

One of the standout features of the MMU-AP series is its intelligent power management technology. This feature allows for adaptive energy distribution based on real-time demands. By leveraging precise control algorithms, the modules can adjust their output to match the specific requirements of connected devices, ultimately leading to reduced power loss and increased efficiency. This adaptability not only benefits end-users by lowering operational costs but also contributes to a greener environment by minimizing waste.

The versatility of the MMU-AP series is evident in its wide range of operational capabilities. These power modules are designed to work effectively in various voltage levels and load conditions. With input voltage ranges suitable for standard industrial environments, they can easily be integrated into existing systems, enhancing overall functionality without requiring extensive modifications.

Moreover, the compact design of the MMU-AP modules is another notable characteristic. Their size and light weight facilitate easier installation and integration into tight spaces, making them ideal for applications where real estate is a premium. This compact profile does not compromise performance, as these modules are engineered to deliver robust power output while maintaining thermal efficiency.

In terms of reliability, the MMU-AP series is built with high-grade components that withstand harsh operating conditions. With features such as over-voltage protection, short-circuit protection, and thermal shutdown capabilities, users can trust that their equipment would operate safely and efficiently, thereby extending the lifespan of both the power modules and the devices they serve.

Finally, Toshiba’s commitment to innovation ensures that the MMU-AP series incorporates cutting-edge technology. The series supports communication protocols that enable seamless integration with smart systems, paving the way for advanced monitoring and control functions. This levels up the user experience, providing insights into performance and diagnostics that are crucial for uptime and reliability in demanding environments.

In conclusion, the Toshiba MMU-AP series offers a blend of efficiency, adaptability, and advanced technology, making it a valuable asset for various industrial and commercial applications. Its intelligent design and robust features ensure that users can optimize energy use while maintaining high performance and reliability.
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