Toshiba MMD-AP0076BHP1-E Service Manual
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Toshiba MMD-AP0076BHP1-E Service Manual

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Table Of Contents
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Table of Contents

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SERVICE MANUAL

AIR-CONDITIONER
INDOOR UNIT
< Concealed Duct Standard Type >
MMD-AP0076BHP1-E
MMD-AP0096BHP1-E
MMD-AP0126BHP1-E
MMD-AP0156BHP1-E
MMD-AP0186BHP1-E
MMD-AP0246BHP1-E
MMD-AP0276BHP1-E
MMD-AP0306BHP1-E
MMD-AP0366BHP1-E
MMD-AP0486BHP1-E
MMD-AP0566BHP1-E
R410A
FILE NO. SVM-16043
MULTI TYPE
MMD-AP0076BHP1-TR
MMD-AP0096BHP1-TR
MMD-AP0126BHP1-TR
MMD-AP0156BHP1-TR
MMD-AP0186BHP1-TR
MMD-AP0246BHP1-TR
MMD-AP0276BHP1-TR
MMD-AP0306BHP1-TR
MMD-AP0366BHP1-TR
MMD-AP0486BHP1-TR
MMD-AP0566BHP1-TR
April 201 6
Table of Contents
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Summary of Contents for Toshiba MMD-AP0076BHP1-E

  • Page 1: Service Manual

    FILE NO. SVM-16043 SERVICE MANUAL AIR-CONDITIONER MULTI TYPE INDOOR UNIT < Concealed Duct Standard Type > MMD-AP0076BHP1-E MMD-AP0076BHP1-TR MMD-AP0096BHP1-E MMD-AP0096BHP1-TR MMD-AP0126BHP1-E MMD-AP0126BHP1-TR MMD-AP0156BHP1-E MMD-AP0156BHP1-TR MMD-AP0186BHP1-E MMD-AP0186BHP1-TR MMD-AP0246BHP1-E MMD-AP0246BHP1-TR MMD-AP0276BHP1-E MMD-AP0276BHP1-TR MMD-AP0306BHP1-E MMD-AP0306BHP1-TR MMD-AP0366BHP1-E MMD-AP0366BHP1-TR MMD-AP0486BHP1-E MMD-AP0486BHP1-TR MMD-AP0566BHP1-E MMD-AP0566BHP1-TR R410A April 201 6...

  • Page 2: Table Of Contents

    CONTENTS PRECAUTIONS FOR SAFETY ................6 1. SPECIFICATIONS ....................13 2. AIR DUCTING WORK ..................... 15 3. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ............ 17 4. WIRING DIAGRAMS ....................19 5. PARTS RATING ...................... 20 6. REFRIGERANT CYCLE DIAGRAM ............... 21 7. CONTROL OUTLINE ....................22 8.

  • Page 3: Original Instruction

    • The qualified service person is a person who installs, repairs, maintains, relocates and removes the air conditioners made by Toshiba Carrier Corporation. He or she has been trained to install, repair, maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation...
  • Page 4 Definition of Protective Gear When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ work clothing. In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed in the table below.

  • Page 5: Warning Indications On The Air Conditioner Unit

    Warning Indications on the Air Conditioner Unit [Confirmation of warning label on the main unit] Confirm that labels are indicated on the specified positions If removing the label during parts replace, stick it as the original. Warning indication Description WARNING WARNING ELECTRICAL SHOCK HAZARD ELECTRICAL SHOCK HAZARD...

  • Page 6: Precautions For Safety

    PRECAUTIONS FOR SAFETY The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual. DANGER Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker for both the indoor and outdoor units to the OFF position. Otherwise, electric shocks may result.
  • Page 7 WARNIG Before starting to repair the air conditioner, read carefully through the Service Manual, and repair the air conditioner by following its instructions. Only qualified service person (*1) is allowed to repair the air conditioner. Repair of the air conditioner by unqualified person may give rise to a fire, electric shocks, injury, water leaks and / or other problems.
  • Page 8 Do not modify the products.Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury. Prohibition of modification. When any of the electrical parts are to be replaced, ensure that the replacement parts satisfy the specifications given in the Service Manual (or use the parts contained on the parts list in the Service Manual).
  • Page 9 After repair work, surely assemble the disassembled parts, and connect and lead the removed wires as before. Perform the work so that the cabinet or panel does not catch the inner wires. If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is caused Assembly / at user’s side.
  • Page 10 When the service panel of the outdoor unit is to be opened in order for the compressor or the area around this part to be repaired immediately after the air conditioner has been shut down, set the circuit breaker to the OFF position, and then wait at least 10 minutes before opening the service panel. If you fail to heed this warning, you will run the risk of burning yourself because the compressor pipes and other parts will be very hot to the touch.

  • Page 11: Declaration Of Conformity

    Declaration of Conformity Manufacturer: TOSHIBA CARRIER (THAILAND) CO., LTD. 144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road, Tambon Bangkadi, A mphur Muang, Pathumthani 12000, Thailand Authorized Representative / Nick Ball TCF holder: Toshiba EMEA Engineering Director Toshiba Carrier UK Ltd.

  • Page 12: Specifications

    Specifications Sound Pressure level (dBA) Weight (kg) Main unit Model Cooling Heating ∗ ∗ MMD-AP0076BHP1-E ∗ ∗ MMD-AP0096BHP1-E ∗ ∗ MMD-AP0126BHP1-E ∗ ∗ MMD-AP0156BHP1-E ∗ ∗ MMD-AP0186BHP1-E ∗ ∗ MMD-AP0246BHP1-E ∗ ∗ MMD-AP0276BHP1-E ∗ ∗ MMD-AP0306BHP1-E ∗ ∗ MMD-AP0366BHP1-E ∗...

  • Page 13: Specifications

    1. SPECIFICATIONS (50Hz) ∗∗∗∗ Model name MMD-AP BHP1-E(TR) 0076 0096 0126 0156 0186 0246 0276 0306 0366 0486 0566 Cooling/Heating capacity (Note 1) (kW) 2.2/2.5 2.8/3.2 3.6/4.0 4.5/5.0 5.6/6.3 7.1/8.0 8.0/9.0 9.0/10.0 11.2/12.5 14.0/16.0 16.0/18.0 1phase 50Hz 230V(220V-240V) Electrical Power supply characteristics 0.26 0.29...
  • Page 14 (60Hz) Model name MMD-AP∗∗∗∗BHP1-E(TR) 0076 0096 0126 0156 0186 0246 0276 0306 0366 0486 0566 Cooling/Heating capacity (Note 1) (kW) 2.2/2.5 2.8/3.2 3.6/4.0 4.5/5.0 5.6/6.3 7.1/8.0 8.0/9.0 9.0/10.0 11.2/12.5 14.0/16.0 16.0/18.0 1phase 60Hz 220V Electrical Power supply characteristics 0.27 0.31 0.44 0.55 Running current...

  • Page 15: Air Ducting Work

    2. AIR DUCTING WORK AP0076 type AP0096, AP0126 type Standard air volume: 540 m Standard air volume: 570 m Standard air volume : 540m Standard air volume : 570m Upper limit of Upper limit of Lower limit of Lower limit of Lower limit of external static Lower limit of external static external static...
  • Page 16 AP0306 type AP0366 type Standard air volume: 1920 m Standard air volume : 1920m Standard air volume: 1260 m Standard air volume : 1260m Lower limit of Lower limit of Lower limit of external static Lower limit of external static external static pressure (120 Pa) external static...

  • Page 17: Construction Views (External Views)

    3. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ∗ MMD-AP0076BHP1*, AP0096BHP1*, AP0126BHP1*, AP0156BHP1*, AP0186BHP1* ∗ ∗ ∗ AP0246BHP1*, AP0276BHP1*, AP0306BHP1*, AP0366BHP1*, AP0486BHP1*, AP0566BHP1* Hanging bolt pitch Hanging bolt pitch B Main unit dimension A External dimensions of flange C 187.5 Electrical Drain pan / Drain control box pump check cover Dimension...
  • Page 18 AP007 ~ AP018 type AP024 ~ AP030 type 959.4 659.4 37.5 37.5 37.5 37.5 37.5 37.5 87.5 87.5 AP036 ~ AP056 type 1359.4 37.5 37.5 ...

  • Page 19: Wiring Diagrams

    4. WIRING DIAGRAMS Models : MMD- AP0076BHP1*, AP0096BHP1*, AP0126BHP1*, AP0156BHP1*, AP0186BHP1*, AP0246BHP1*, AP0276BHP1*, AP0306BHP1*, AP0366BHP1*, AP0486BHP1*, AP0566BHP1* – 19 –...

  • Page 20: Parts Rating

    5. PARTS RATING 0076BHP1 0096BHP1 0126BHP1 0156BHP1 0186BHP1 Model MMD-AP ICF-340W150-2 Fan motor Drain pump motor MDP-1401 Float switch FS-1A-31-3 Pulse motor EFM-MD12TF-1 EFM-25YGTCTH-2 EFM-40YGTF-1 Pulse motor valve Lead wire length: 218 mm TA sensor TC1 sensor Ø4 size lead wire length: 1000 mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length: 1000 mm Vinyl tube (Black) TCJ sensor...

  • Page 21: Refrigerant Cycle Diagram

    6. REFRIGERANT CYCLE DIAGRAM Indoor unit Liquid side Gas side Strainer Capillary tube Heat exchanger at indoor side Pulse Motor Valve (PMV) Strainer Sensor (TCJ) Sensor (TC2) Sensor (TC1) Sensor Fan motor (TA) Explanation of functional parts in indoor unit Functional part name Functional outline Pulse Motor Valve...

  • Page 22: Control Outline

    7. CONTROL OUTLINE Indoor unit Control specifications Item Specification outline Remarks Upon power 1. Identification of outdoor unit supply reset When the power supply is reset, the outdoor unit is identified, and control is redirected according to the identification result. 2.
  • Page 23 Item Specification outline Remarks Fan speed 1. The fan operates in one of the four speed modes of “HIGH (HH)”, “MED HH > H+ > H > (H)”, “LOW (L)” and “AUTO” on the basis of a command issued via the L+ >...
  • Page 24 Item Specification outline Remarks Cold air 1. In heating operation, the upper limit of the fan tap is set according to the TCJ: Indoor heat discharge lower of whichever is the higher between TC2 sensor and TCJ sensor exchanger prevention temperatures, on the one hand, and TC1 sensor temperature, on the sensor control...
  • Page 25 Item Specification outline Remarks • Recovery operation Cooling oil While the outdoor unit is recovering cooling oil (refrigerant), the indoor normally takes (refrigerant) units perform the following control tasks: place roughly every recovery control [common for operational (cooling thermo ON / thermo OFF / FAN), as 2 hours.
  • Page 26 Item Specification outline Remarks Filter sign 1. The indoor fan’s cumulative hours of operation are counted, and when “FILTER ” displayed display these exceed the prescribed value (2500H), a filter replacement signal (not applicable is sent to the remote controller to display a filter sign on it. to wireless type) 2.
  • Page 27 Item Specification outline Remarks DC motor 1) When the fan operation has started, positioning of the stator and the Check code “P12” rotor are performed. (Moves slightly with tap sound) 2) The motor operates according to the command from the indoor controller.

  • Page 28: Indoor Controller Block Diagram

    8. APPLIED CONTROL AND FUNCTIONS (INCLUDING CIRCUIT CONFIGURATION) 8-1. Indoor controller block diagram 8-1-1. In Case of Connection of Wired (Simple) Remote Controller Wired (Simple) heder remote controller (Max. 2 units) Schedule remote controller Display LCD Function setup Display LCD LCD driver...

  • Page 29: In Case Of Connection Of Wireless Remote Controller

    8-1-2. In Case of Connection of Wireless Remote Controller Indoor unit #1 (Heder) Wireless remote controller Receiver P.C. board Display LED Receive circuit Function setup SW Buzzer Temporary operation SW DC5V Power Remote controller circuit communication circuit (Follower) (Follower) Indoor control P.C.

  • Page 30: Controller

    8-1-3. Connection of Both Wired (Simple) Remote Controller and Wireless Remote Controller Indoor unit #1 (Heder) Wired (Simple) heder remote controller Wireless remote controller (Max. 2 units) Schedule remote controller Receiver P.C. board Display LED Display Function Display setup...

  • Page 31: Indoor Print Circuit Board Mcc-1631

    8-2. Indoor Print Circuit Board MCC-1631 – 31 –...

  • Page 32: Optional Connector Specifications Of Indoor P.c. Board

    8-3. Optional connector specifications of indoor P.C. board Function Connector No. Pin No. Specification Remarks Fan output DC12 V Factory default setting: ON when indoor unit in operation and OFF when indoor unit at rest CN32 Output * Fan can be operated on its own by pressing FAN button on remote controller (DN = 31) Start / stop input Start / stop input for HA (J01: In place / Removed =...

  • Page 33: Test Operation Of Indoor Unit

    8-4. Test operation of indoor unit Check function for operation of indoor unit (Functions at indoor unit side) This function is provided to check the operation of the indoor unit singly without communication with the remote controller or the outdoor unit. This function can be used regardless of operation or stop of the system. However, if using this function for a long time, a trouble of the equipment may be caused.

  • Page 34: Method To Set Indoor Unit Function Dn Code

    8-5. Method to set indoor unit function DN code (When performing this task, be sure to use a wired remote controller.) To be performed only when system at rest Push the buttons simultaneously and hold for at least 4 seconds. The unit No.
  • Page 35 Function CODE No. (DN Code) table (includes all functions needed to perform applied control on site) Item Description At shipment Filter display delay timer 0000: None 0001: 150H According to type 0002: 2500H 0003: 5000H 0004: 10000H Dirty state of filter 0000: Standard 0000: Standard 0001: High degree of dirt (Half of standard time)
  • Page 36 Type DN code “10” Value Type Model ∗∗∗ 0004 Concealed Duct Standard MMD-AP BHP1 Indoor Unit Capacity DN code “11” Value Capacity 0000* Invalid 0001 007 type 0003e 009 type 0005 012 type 0007 015 type 0009 018 type 0011 024 type 0012 027 type...

  • Page 37: Applied Control Of Indoor Unit

    8-6. Applied control of indoor unit Control system using remote controller interface (TCB-IFCB4E2) Wiring and setting • In the case of group control, the control system functions as long as it is connected to one of the indoor units (control P.C. board) in the group. If it is desired to access the operation and error statuses of other units, relevant signals must be brought to it from those units individually.
  • Page 38 Ventilating fan control from remote controller [Function] • The start / stop operation can be operated from the wired remote controller when air to air heat exchanger or ventilating fan is installed in the system. • The fan can be operated even if the indoor unit is not operating. •...
  • Page 39 Leaving-ON prevention control [Function] • This function controls the indoor units individually. It is connected with cable to the control P.C. board of the indoor unit. 2E 2E 2E 2E 2E • In a group control, it is connected with cable to the indoor unit (Control P.C. board), and the CODE No. is set to the connected indoor unit.
  • Page 40 Manual address setting using the remote controller Procedure when setting indoor units’ addresses first under the condition that indoor wiring has been completed and outdoor wiring has not been started (manual setting using the remote controller) Wiring example of 2 refrigerant lines Refrigerant line 1 Refrigerant line 2 Outdoor...
  • Page 41 12 12 12 12 12 Push the TEMP. buttons repeatedly to set the CODE No. to Push the TIME buttons repeatedly to set a system address. (Match the address with the address on the interface P.C. board of the header outdoor unit in the same refrigerant line.) Push button.
  • Page 42 Confirming the indoor unit addresses and the position of an indoor unit using the remote controller Confirming the numbers and positions of indoor units To see the indoor unit address of an indoor unit which you know the position of When the unit is individual (the indoor unit is paired with a wired remote controller one-to-one), or it is a group-controlled one.
  • Page 43 To find an indoor unit’s position from its address When checking unit numbers controlled as a group TEMP. ON / OFF TIMER SET MODE TIME SAVE VENT Stop FILTER RESET TEST SWING/FIX UNIT LOUVER (Execute it while the units are stopped.) The indoor unit numbers in a group are indicated one after another.
  • Page 44 To check all the indoor unit addresses using an arbitrary wired remote controller. (When communication wirings of 2 or more refrigerant lines are interconnected for central control) TEMP. ON / OFF TIMER SET MODE TIME SAVE VENT FILTER RESET TEST SWING/FIX UNIT LOUVER (Execute it while the units are stopped.)
  • Page 45 Changing the indoor unit address using a remote controller To change an indoor unit address using a wired remote controller. The method to change the address of an individual indoor unit (the indoor unit is paired with a wired remote controller one-to-one), or an indoor unit in a group. (The method is available when the addresses have already been set automatically.) TEMP.
  • Page 46 To change all the indoor unit addresses using an arbitrary wired remote controller. (The method is available when the addresses have already been set automatically.) (When communication wirings of 2 or more refrigerant lines are interconnected for central control) NOTE You can change the addresses of indoor units in each refrigerant line using an arbitrary wired remote controller.
  • Page 47 TEMP. ON / OFF TIMER SET MODE TIME SAVE VENT FILTER RESET TEST SWING/FIX UNIT LOUVER Finish 5, 7 Press to finish setting Push the TIME buttons repeatedly to change the value of the indoor unit address in SET DATA. Change the value in SET DATA to that of a new address.
  • Page 48 Error clearing function How to clear the error using the wired remote controller Clearing an error of the outdoor unit Clear the currently detected outdoor unit for each refrigerant line to which the indoor unit controlled by the remote controller is connected. (The indoor unit error is not cleared.) Use the service monitoring function of the remote controller.
  • Page 49 Monitoring function of wired remote controller The following monitoring function is available if the remote controller of RBC-ATM32E is used. TEMP. ON / OFF TIMER SET MODE TIME SAVE VENT FILTER RESET TEST SWING/FIX UNIT LOUVER Content Enter the service monitoring mode using the remote controller to check the sensor temperature or operation status of the remote controller, indoor unit, and outdoor unit.
  • Page 50 Target outdoor unit (SMMS, SHRM, Mini-SMMS – Series 1 – 2) CODE No. Data Format Unit Remote controller display example Indoor unit Room temperature (in control) *1 ×1 ˚C data Room temperature (Remote controller) ×1 ˚C Air Temperature (TA) ×1 ˚C [0024]=24 ˚C Coil Temperature (TCJ)
  • Page 51 Target outdoor unit (SMMS-i – Series 4) CODE No. Data Format Unit Remote controller display example Indoor unit Room temperature (in control) ×1 ˚C data *2 Room temperature (Remote controller) ×1 ˚C Air Temperature (TA) ×1 ˚C Coil Temperature (TCJ) ×1 ˚C [0024]=24 ˚C...
  • Page 52 CODE No. Data Format Unit Remote controller display example U1 U2 U3 U4 Individual Rotation of compressor 1 ×10 data 2 of [0642]=64.2 rps Rotation of compressor 2 ×10 outdoor unit — Rotation of compressor 3 ×10 [0058]=Mode 58 Outdoor fan mode ×1 Mode Heat sink temperature of compressor...

  • Page 53: Troubleshooting

    9. TROUBLESHOOTING 9-1. Overview (1) Before engaging in troubleshooting (a) Applicable models All Super Module Multi (SMMS, SHRM, Mini-SMMS, SMMS-i) models. (Indoor units: MMO-APOOO, Outdoor units: MMY-MAPOOOO*, MCY-MAPOOOHT*) (b) Tools and measuring devices required • Screwdrivers (Philips, flat head), spanners, long-nose pliers, nipper, pin to push reset switch, etc. •...

  • Page 54: Troubleshooting Method

    9-2. Troubleshooting method The remote controllers (main remote controller and central control remote controller) and the interface P.C. board of an outdoor unit are provided with an LCD display (remote controller) or a 7-segment display (outdoor interface P.C. board) to display operational status. Using this self-diagnosis feature, the fault site / faulty part may be identified in the event of a fault by following the method described below.
  • Page 55 (Error detected by main remote controller) Display of receiving unit Check code Outdoor 7-segment display Indicator light block Main Typical fault site Description of error remote Operation Timer Ready Sub-code controller Flash Signals cannot be received from indoor unit; master remote No master remote controller, ⎯...
  • Page 56 List of check codes (outdoor unit) IPDU: Intelligent Power Drive Unit (Inverter P.C. board) (Errors detected by SMMS outdoor interface - typical examples) :Lighting, : Flashing, : Goes off ALT.: Flashing is alternately when there are two flashing LED SIM: Simultaneous flashing when there are two flashing LED Check code Display of receiving unit Outdoor 7-segment display...
  • Page 57 Check code Display of receiving unit TCC-LINK Outdoor 7-segment display Indicator light block central control Typical fault site Description of error or main remote Operation Timer Ready Sub-code Flash controller display Outdoor suction Outdoor suction temperature sensor (TS1) has – temperature sensor (TS1) been open / short-circuited.
  • Page 58 Check code Display of receiving unit TCC-LINK Outdoor 7-segment display Indicator light block central control Typical fault site Description of error or main remote Operation Timer Ready Flash Sub-code controller display Address setting has not been performed for one or SIM Indoor group address not –...
  • Page 59 (Errors detected by IPDU featuring in SMMS standard outdoor unit - typical examples) Check code Display of receiving unit TCC-LINK Outdoor 7-segment display Indicator light block central control Typical fault site Description of error or main remote OperationTimer Ready Flash Sub-code controller display...

  • Page 60: Troubleshooting Based On Information Displayed On Remote Controller

    9-3. Troubleshooting based on information displayed on remote controller Using main remote controller (RBC-AMT32E) (1) Checking and testing When a fault occurs to an air conditioner, a check code and indoor unit No. are displayed on the display window of the remote controller. Check codes are only displayed while the air conditioner is in operation.
  • Page 61 Using TCC-LINK central control remote controller (TCB-SC642TLE2) (1) Checking and testing When a fault occurs to an air conditioner, a Display of check code Display of Unit No. check code and indoor unit No. are displayed on the display window of the remote controller. UNIT No.
  • Page 62 Using indoor unit indicators (receiving unit light block) (wireless type) To identify the check code, check the 7-segment display on the header unit. To check for check codes not displayed on the 7-segment display, consult the “List of Check Codes (Indoor Unit)” in “9-2. Troubleshooting method”. : Blinking (0.5 seconds) : Lighting : Goes off...
  • Page 63 Light block Check code Cause of fault Heat exchanger temperature sensor (TCJ) error Operation Timer Ready Heat exchanger temperature sensor (TC2) error Indoor unit temperature sensor Heat exchanger temperature sensor (TC1) error errors Ambient temperature sensor (TA) error Alternate blinking Discharge temperature sensor (TF) error Discharge temperature sensor (TD1) error Operation Timer...
  • Page 64 Light block Check code Cause of fault Operation Timer Ready Outdoor EEPROM error Synchronized blinking Other (indications not involving check code) Light block Check code Cause of fault Operation Timer Ready – Test run in progress Synchronized blinking Operation Timer Ready Setting incompatibility –...

  • Page 65: Check Codes Displayed On Remote Controller And Smms Outdoor Unit 7-Segment Display On I/F Board) And Locations To Be Checked

    9-4. Check codes displayed on remote controller and SMMS outdoor unit (7-segment display on I/F board) and locations to be checked For other types of outdoor units, refer to their own service manuals. Check code Location Error detection Outdoor 7-segment display Main Description System status...
  • Page 66 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code Duplicated Indoor Duplicated All stop More than one indoor unit is Check indoor addresses. unit indoor address assigned same address. indoor address Check for any change made to remote controller...
  • Page 67 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code Indoor Error in Stop of Periodic communication Check remote controller wiring. unit communication corresponding between indoor header and Check indoor power supply between indoor unit...
  • Page 68 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection controller Sub-code code SMMS (Series 1) IPDU All stop Communication is disrupted • Check wiring and connectors 01: A3-IPDU1 error communication between IPDUs (P.C.
  • Page 69 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code TL sensor All stop Sensor resistance is infinity Check connection of TL sensor error or zero (open / short connector.
  • Page 70 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection controller Sub-code code Pd sensor All stop Output voltage of Pd Check connection of Pd sensor connector. error sensor is zero (sensor open-circuited).
  • Page 71 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection controller Sub-code code Low oil level All stop Operating compressor
  • Page 72 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code Compressor 2 All stop Compressor 2 case Check Compressor 2 case thermo case thermo thermo was circuit. activation activated.
  • Page 73 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code SMMS Oil detection All stop The temperature Check the TK1 sensor installation. Check the TK1 sensor resistant (1 series) circuit error change of TK1 characteristics.
  • Page 74 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection controller Sub-code code SMMS-i Oil level All stop No temperature Check for disconnection of TK4 sensor. detection change is detected (4 series) Check resistance characteristics of circuit error by TK4 despite...
  • Page 75 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code Outdoor All stop Jumper wire provided on P.C. Check model setting of P.C. capacity not set board for servicing I/F P.C. board for servicing outdoor board has not been removed I/F P.C.
  • Page 76 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection controller Sub-code code Detected indoor Indoor External Stop of Signal is present at When external device is address unit interlock of corresponding external error input connected to CN80...
  • Page 77 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection controller Sub-code code Open phase detected, All stop Phase sequence Check the phase sequence of Phase sequence error error was detected outdoor power wiring.
  • Page 78 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code Outdoor liquid All stop Check full-close operation backflow When system is in cooling of outdoor PMV (1, 2, 4). detection error operation, high pressure is Check for defect in Pd or...
  • Page 79 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection controller Sub-code code Detected 4-way valve All stop Abnormal refrigerating cycle Check for defect in main outdoor unit reversing error data is collected during body of 4-way valve.
  • Page 80 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code SMMS (Series 1) Outdoor fan All stop (Sub code: 08) Check the fan motor. Check the connector 08: Out of step IPDU error FAN IPDU position detection connection for fan motor.
  • Page 81 Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code ∗ SMMS-i IPDU Outdoor fan All stop Check fan motor. (Sub code: 0 (Series 4) IPDU error Check for defect in fan Fan IPDU over current ∗...
  • Page 82 Errors detected by TCC-LINK central control device Check code Location Error detection Outdoor 7-segment display Main Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code TCC-LINK TCC-LINK Continued Central control device is Check for defect in central operation unable to transmit signal.
  • Page 83 Part name Checking procedure Concealed Duct type Measure the resistance value of each winding by using the tester. Fan motor ICF-340W150-1, 2 ICF-340W150-2 ∗ (MMD-AP0076BHP1 Position Resistance value ∗ AP0096BHP1 ∗ AP0126BHP1 14.8 ± 1.5 Ω Black–Red ∗ AP0156BHP1 ∗ AP0186BHP1 14.8 ±...

  • Page 84: Sensor Characteristics

    9-5. Sensor characteristics Indoor unit Temperature sensor characteristics Indoor TA sensor Temperature [˚C] Resistance [kΩ] 33.9 Resistance 26.1 [kΩ] 20.3 15.9 12.6 10.0 Temperature [˚C] Temperature [˚C] Resistance [kΩ] –20 99.9 –15 74.1 Indoor TC1 sensor –10 55.6 –5 42.2 32.8 25.4 19.8...

  • Page 85: P.c. Board Exchange Procedures

    10. P.C. BOARD EXCHANGE PROCEDURES Indoor unit 10-1. Replacement of indoor P.C. boards Part code Model type P.C. board type ∗∗ ∗ MMD-AP 6 BHP1 s eries 43T6V689 MCC-1631 Points to note when replacing indoor P.C. board assembly The electrically erasable programmable read-only memory (hereinafter EEPROM) mounted on an indoor P.C. board holds important setting data, including the type and capacity codes intrinsic to the model (set at the factory), as well as the line / indoor / group addresses, high ceiling adjustment setting and the like (during installation, either automatically or manually).
  • Page 86 Method 2 If it is not possible to turn on the indoor unit or read the setting data from the P.C. board to be replaced via a wired remote controller or operate the remote controller due to the failure of its power supply circuit - Replacing EEPROM (For the location of this component and the method to replace it, see the “...
  • Page 87 Procedure 1: reading setting data from EEPROM (Read the setting data from EEPROM, including both the factory settings and any modifications made to them on site.) Push the buttons simultaneously and hold for at least 4 seconds. (This number corresponds to the same number shown on the Remote Controller Operation Diagram.) * In the case of group control, the unit No.
  • Page 88 Procedure 2: replacing P.C. board Replace the faulty P.C. board with a service P.C. board. Be sure to replicate the old jumper setting (removal), switch setting (SW501), and connector short-circuit setting (e.g. CN34) on the service P.C. board. (See the diagram at below.) CAUTION Don’t remove the materials.
  • Page 89 Procedure 3: writing setting data in EEPROM (The EEPROM of the service P.C. board has been set to the factory default values.) 1 Push the buttons simultaneously and hold for at least 4 seconds. (This number corresponds to the same number shown on the Remote Controller Operation Diagram.) (Under UNIT No., ALL is displayed.)
  • Page 90 CODE No. list (Example) CODE No. (DN) Item Setting data Factory-set value Filter sign lighting time Depending on Type Filter pollution leve 0000: standard Central control address 0099: Not determined Heating suction temperature shift 0002: +2 ‹C (Floor standing type: 0) * Automatically selection Existence of automatic COOL/HEAT mode 0001: No auto mode cooling / heating...

  • Page 91: Detachments

    NOTE In a section, Detachments, the models are expressed as follows for convenience. AP007: MMD-AP0076BHP1-E(TR) to AP0186BHP1-E(TR) AP024: MMD-AP0246BHP1-E(TR) to AP0306BHP1-E(TR) AP036: MMD-AP0366BHP1-E(TR) to AP0566BHP1-E(TR) Part name...
  • Page 92 Part name Procedure Remarks Suction panel 1. Detachment 1) Remove the fixing screws A which fix the suction panel. Loosen the fixing screws B. 2) Slide the suction panel to the arrow side and then remove the panel. 2. Attachment 1) Hook the suction panel to the fixing screws B and tighten screws.
  • Page 93 Part name Procedure Remarks Electric parts 1. Detachment 1) Perform works of 1 of (In case of under air intake) Perform works of 1 of (In case of back air intake) Perform works of 1 of 2) Remove the indoor/outdoor connecting wire and remote controller wire from each terminal block.
  • Page 94 Part name Procedure Remarks PMV motor 1) Open cover of the electric parts box and then remove relay connector of the PMV motor. Relay connector of PMV motor PMV motor 2) As shown in the right figure, using a double spanner, open the check port at the side face and then remove the PMV motor.
  • Page 95 Part name Procedure Remarks Fan motor, 1. Detachment Fan, 1) Perform works until opening of the electric parts box cover in works of 1 of Fan case Fan motor wiring 2) Remove connectors for fan motor wiring CN333 from control P.C. board. CN334 CN333 : Motor power supply (5P: White) CN334 : Motor control (5P: White)
  • Page 96 Part name Procedure Remarks Drain pan 1. Detachment 1) Remove the drain cap and then extract the Bottom base drain water accumulated in the drain pan. NOTE Do not hold the When removing the drain cap, be sure to drain socket. receive drain water using a bucket, etc.
  • Page 97 Part name Procedure Remarks Heat 1. Detachment : Screw position exchanger 1) Recover the refrigerant gas and then remove the refrigerant pipe of the indoor AP007 Type unit. Heat exchanger End plate 2) Perform works of 1 of fixed plate 3) Pull out TC sensor and TCJ sensor wirings from the holder.

  • Page 98: Exploded Views And Parts List

    12. EXPLODED VIEWS AND PARTS LIST 12-1. Concealed duct standard type MMD-AP0076BHP1-E(TR), MMD-AP0096BHP1-E(TR), MMD-AP0126BHP1-E(TR) MMD-AP0156BHP1-E(TR), MMD-AP0186BHP1-E(TR) – 98 –...
  • Page 99 MMD-AP **** BHP1-E (TR) Location Parts No. Description 0076 0096 0126 0156 0186 43T21448 MOTOR, FAN 43T20340 FAN, MULTI BLADE 43T70315 HOSE, DRAIN 43T44522 REFRIGERATION CYCLE ASSY 43T44523 REFRIGERATION CYCLE ASSY 43T22335 CASE, FAN, LOWER 43T22337 CASE, FAN, UPPER 43T72317 PAN ASSY, DRAIN 43T82319 SOCKET...
  • Page 100 MMD-AP0246BHP1-E(TR), MMD-AP0276BHP1-E(TR), MMD-AP0306BHP1-E(TR) – 100 –...
  • Page 101 MMD-AP∗∗∗∗ BHP1-E (TR) Location Parts No. Description 0246 0276 0306 43T21447 MOTOR, FAN 43T20340 FAN, MULTI BLADE 43T70315 HOSE, DRAIN 43T44524 REFRIGERATION CYCLE ASSY 43T22335 CASE, FAN, LOWER 43T22337 CASE, FAN, UPPER 43T72318 PAN ASSY, DRAIN 43T82318 SOCKET 43T79321 CAP, DRAIN 43T70319 HOSE,DRAIN 43T39357...
  • Page 102 MMD-AP0366BHP1-E(TR), MMD-AP0486BHP1-E(TR), MMD-AP0566BHP1-E(TR) – 102 –...
  • Page 103 MMD-AP **** BHP1-E (TR) Location Parts No. Description 0366 0486 0566 43T21446 MOTOR, FAN 43T20339 FAN, MULTI BLADE 43T70315 HOSE, DRAIN 43T44525 REFRIGERATION CYCLE ASSY 43T22336 CASE, FAN, LOWER 43T22338 CASE, FAN, UPPER 43T72319 PAN ASSY, DRAIN 43T82318 SOCKET 43T79321 CAP, DRAIN 43T70318 HOSE,DRAIN...
  • Page 104 MMD-AP0076BHP1-E(TR), MMD-AP0096BHP1-E(TR), MMD-AP0126BHP1-E(TR) MMD-AP0156BHP1-E(TR), MMD-AP0186BHP1-E(TR), MMD-AP0246BHP1-E(TR) MMD-AP0276BHP1-E(TR), MMD-AP0306BHP1-E(TR), MMD-AP0366BHP1-E(TR) MMD-AP0486BHP1-E(TR), MMD-AP0566BHP1-E(TR) Location Parts No. Description Q,ty / Set 43T50347 SENSOR ASSY, SERVICE 43T50476 SERVICE-SENSOR 43T58320 REACTOR 43T60435 SERV-TERMINAL 43T60362 TERMINAL 43T6V689 PC BOARD ASSY 43T50351 HOLDER-TA 43T50477 SERVICE-SENSOR 43T63348 CLAMP, DOWN...
  • Page 105 TOSHIBA CARRIER (THAILAND) CO.,LTD. 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANG, PATHUMTHANI 12000, THAILAND.

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