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Toshiba MMK-AP0074MH-E Service Manual
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Toshiba MMK-AP0074MH-E Service Manual

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  • Page 15 Color identification Louver BROWN indicates the terminal block. Pulse motor motor WHITE Letter at inside indicates the terminal number. valve YELLOW 2. A dotted line and broken line indicate the motor BLUE BLACK wiring at site. GRAY indicates the control P.C.board PINK ORANGE GRN &...
  • Page 22 Operation starts Operation starts...
  • Page 24 Wired (Simple) master remote controller (Up to 2 sets) Central remote controller Display Display Function setup driver part Key switch Function setup Display part Key switch DC5V Remote DC5V controller Power Power Secondary communication circuit circuit battery circuit Indoor unit Max.
  • Page 25 Indoor unit Max. 8 units are connectable. Main P.C. board (MCC-1510) Remote *1 In group connection, mount the EEPROM controller central control remote controller to communication DC20V circuit group header unit. DC12V TA sensor DC5V Sensor display P.C. board (MCC-819) TC sensor Same Same...
  • Page 43 System data Indoor unit data Individual outdoor unit data (Note 3, 4)

  • Page 45: How To Check

    8-2. HOW TO CHECK On the remote controller (Remote controller, Central control remote controller) and on the interface P.C. board of the outdoor unit, LCD display part (Remote controller) or 7- segment display part (on outdoor interface P.C. board) is provided in order to display the operation status. When a trouble occurred, the method to judge the trouble or defective position of the air conditioner by this self-diagnosis function is shown below.
  • Page 46 (∗) ¡: Goes on, ¥: Flashes, l: Goes off [Remote controller detects error.] A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED. Check code display Sensor lamp display Outdoor 7-segment Block display (∗)
  • Page 47 (∗) ¡: Goes on, ¥: Flashes, l: Goes off Check code display list (Outdoor unit) A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED. [SMMS-i interface detects error: Main example] Check code display Sensor lamp display...
  • Page 48 (∗) ¡: Goes on, ¥: Flashes, l: Goes off A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED. Check code display Sensor lamp display Outdoor 7-segment Block display Main defective position...
  • Page 49 (∗) ¡: Goes on, ¥: Flashes, l: Goes off A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED. Check code display Sensor lamp display Outdoor 7-segment Block display Main defective position...
  • Page 50 (∗) ¡: Goes on, ¥: Flashes, l: Goes off Check code display list (Outdoor unit) A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED. [SMMS-i unit IPDU detects error: Main example] Check code display Sensor lamp display...
  • Page 56 8-4. Check Code and Check Position Displayed on the Remote Controller and Outdoor Unit (7-Segment Display of Interface) <In case of SUPER MODULAR MULTI SYSTEM> Check code Detected Wired Outdoor 7-segment display Check code name Status Error detection condition Check item (position) position remote controller...
  • Page 57 Check code Detected Wired Outdoor 7-segment display Check code name Status Error detection condition Check item (position) position remote Check code Auxiliary code controller — No corresponding All stop Indoor unit is not found when indoor • Check the communication line connection between indoor and outdoor. indoor unit during automatic address start was set up.
  • Page 58 Check code Detected Wired Outdoor 7-segment display Check code name Status Error detection condition Check item (position) position remote Check code Auxiliary code controller IPDU communication error All stop Communication of each IPDU • Check connection of communication connector and A-3-IPDU A-3-IPDU (P .C.
  • Page 59 Check code Detected Wired Outdoor 7-segment display Check code name Status Error detection condition Check item (position) position remote Check code Auxiliary code controller — Outdoor temp sensor All stop During operation of compressor in HEAT • Check installation of TE1 sensor and TL sensor. miscabling (TE1, TL) mode, the TE1 detection temp was higher •...
  • Page 60 Check code Detected Wired Outdoor 7-segment display Check code name Status Error detection condition Check item (position) position remote Check code Auxiliary code controller — Compressor 1 case All stop Compressor 1 case thermostat performed • Check compressor 1 case thermo circuit. (Connector, cable, P .C. board) thermo operation protective operation.
  • Page 61 Check code Detected Wired Outdoor 7-segment display Check code name Status Error detection condition Check item (position) position remote Check code Auxiliary code controller — Outdoor unit discharge All stop While compressor 2 is operating, • Check mounting of TD2 sensor. temp.
  • Page 62 Check code Detected Wired Outdoor 7-segment display Check code name Status Error detection condition Check item (position) position remote Check code Auxiliary code controller — — Duplicated indoor units with priority All stop Indoor units with priority were • Check display of indoor unit with priority. (Displayed on indoor unit with priority) duplicated.
  • Page 63 Check code Detected Wired Outdoor 7-segment display Check code name Status Error detection condition Check item (position) position remote Check code Auxiliary code controller — — Indoor Indoor fan motor error Corresponding • Check the lock of fan motor (AC fan). unit only stops.
  • Page 64 Check code Detected Wired Outdoor 7-segment display Check code name Status Error detection condition Check item (position) position remote controller Check code Auxiliary code — Outdoor liquid back All stop <In cooling> • Check full close operation of outdoor PMV (1, 2, 4). detection error While the system operated in cooling mode, high ststus •...
  • Page 65 Check code Detected Wired Outdoor 7-segment display Check code name Status Error detection condition Check item (position) position remote Check code Auxiliary code controller 0 ∗ : IGBT circuit IPDU Outdoor fan IPDU error All stop (Auxiliary code: 08) • Fan motor check 1 ∗...
  • Page 66 Error detected by TCC-LINK central control device Check code Display on Outdoor 7-segment display Detected position Check code name Status Error detection condition Check item (position) central control Check code Auxiliary code device — TCC-LINK TCC-LINK central control device Operation Signal is not transmit from •...

  • Page 68: Table Of Contents

    Piping and Drain Hose Installation ........15 on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained and is thus Indoor Unit Fixing.
  • Page 69 Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Definition of Protective Gear Warning indications on the air conditioner unit When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ work clothing. Warning indication Description In addition to such normal protective gear, wear the protective gear described below when undertaking the...

  • Page 70: Precautions For Safety

    Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Precautions for Safety Selection of installation location • When the air conditioner is installed in a small room, provide appropriate measures to ensure that the The manufacturer shall not assume any liability for the damage caused by not observing the description of concentration of refrigerant leakage occur in the room does not exceed the critical level.
  • Page 71 Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Electrical wiring Relocation • Only a qualified installer(*1) or qualified service person(*1) is allowed to carry out the electrical work of • Only a qualified installer(*1) or qualified service person(*1) is allowed to relocate the air conditioner. It the air conditioner.

  • Page 72: Accessory Parts

    Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Accessory Parts Selection of Installation Place Accessory parts WARNING Part name Q’ty Shape • Install the air conditioner at enough strong place to withstand the weight of the unit. If the strength is not enough, the unit may fall down resulting in injury. Installation plate CAUTION Wireless remote controller...
  • Page 73 Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Installation diagram of Indoor and outdoor units Installation place • A place which provides the spaces around the indoor unit as shown in the above diagram. • A place where there is no obstacle near the air intake and discharge. For the rear left and left •...

  • Page 74: Installation Of Indoor Unit

    Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Installation of Indoor Unit Cutting a Hole and Mounting Installation Plate WARNING Cutting a hole When the installation plate is directly mounted on the wall In case of installing the refrigerant pipes from the Install the air conditioner certainly to sufficiently withstand the weight.

  • Page 75: Piping And Drain Hose Installation

    Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Piping and Drain Hose Installation How to remove the drains cap Clip the drain cap by needle-nose pliers and pull out. Piping and drain hose forming * Apply heat-insulation for both refrigerant pipe and drain hose surely so that no dew generates inside of the equipment. (Use polyethylene foam for insulating material.) Rear right How to fix the drains cap...

  • Page 76: Indoor Unit Fixing

    Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type M Left-hand connection with piping Indoor Unit Fixing Drainage Bend the connecting pipe so that it is laid within 43 mm above the wall surface. If the connecting pipe is laid exceeding 43 mm above the wall surface, the indoor unit may unstably be set on the wall.

  • Page 77: Refrigerant Piping

    Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Refrigerant Piping Tightening connection Airtight test / air purge, etc. For air tightness test, adding refrigerant, refer to the CAUTION Refrigerant piping Permissible piping length and Installation Manual attached to the outdoor unit. height difference •...

  • Page 78: Electric Work

    Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Electric Work Power supply wire and communication wires specifications Power supply wire and communication wires are procured locally. WARNING For the power supply specifications, follow to the following table. If capacity is little, it is dangerous because overheat or burnout may be caused.
  • Page 79 Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type M Wiring example CAUTION Outdoor Power supply Outdoor Power supply 380 V - 415 V ~, 50 Hz 380 V - 415 V ~, 50 Hz The remote controller wire (Communication line) and AC 220 – 240 V wires cannot be parallel to 380 V ~, 60 Hz 380 V ~, 60 Hz contact each other and cannot be stored in the same conduits.
  • Page 80 Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Wiring connection Wiring connection for the flow selector unit Power supply terminal block How to connect the power supply wiring Connect the wiring of the flow selector unit Terminal block and control wiring Connect the power supply wire and the communication wire supplied with the flow selector unit to the indoor for control /...

  • Page 81: Applicable Controls

    Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Applicable Controls Each time button is pushed, indoor Filter sign setting unit numbers in the control group change A wired remote controller is necessary for this function. This function cannot be operate with a wireless cyclically.

  • Page 82: Test Run

    Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Remote controller sensor Adjustment of air direction Test Run The temperature sensor of the indoor unit senses A wired remote controller is necessary for this function. This function cannot be operate with a wireless Using the remote controller switch, change room temperature usually.

  • Page 83: Troubleshooting

    Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type After the test run, push button to Wireless remote controller (Forced test Troubleshooting stop a test run. operation is performed in a different A wired remote controller is necessary for this function. This function cannot be operate with a wireless (Display part is same as procedure 1.) way.) remote controller.
  • Page 84 Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Check method Check code Wireless remote controller On the wired remote controller, central control remote controller and the interface P.C. board of the outdoor Wired Outdoor unit 7- AI-NET Sensor block display of Check code Judging unit (I/F), a check display LCD (Remote controller) or 7-segment display (on the outdoor interface P.C.
  • Page 85 Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Check code Wireless remote controller Check code Wireless remote controller Wired Outdoor unit 7- AI-NET Sensor block display of Wired Outdoor unit 7- AI-NET Sensor block display of Check code Judging Check code Judging...
  • Page 86 Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Check code Wireless remote controller Check code Wireless remote controller Wired Outdoor unit 7- AI-NET Sensor block display of Wired Outdoor unit 7- AI-NET Sensor block display of Check code Judging Check code Judging...
  • Page 87 Total amount of refrigerant (kg) Min. volume of the indoor unit installed room (m ) TCC-LINK: TOSHIBA Carrier Communication Link. ≤ Concentration limit (kg/m ) The concentration limit of R410A which is used in multi air conditioners is 0.3 kg/m .
  • Page 88 Installation Manual Installation Manual SMMS High-Wall Type SMMS High-Wall Type Confirmation of indoor unit setup Important Prior to delivery to the customer, check the address and setup of the indoor unit, which has been installed in this time and fill the check sheet (Table below). Data of four units can be entered in this check sheet. Copy this sheet according to the No.

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Mmk-ap0124mh-eMmk-ap0094mh-eMmk-ap0094mh-trMmk-ap0124mh-trMmk-ap0074mh-tr

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