Toshiba MMD-AP0186HP-E Service Manual
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Toshiba MMD-AP0186HP-E Service Manual

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SERVICE MANUAL

INDOOR UNIT

Concealed Duct High Static Pressure Type
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MMD-AP0186HP-E
MMD-AP0246HP-E
MMD-AP0276HP-E
MMD-AP0366HP-E
MMD-AP0486HP-E
MMD-AP0566HP-E
R410A
AMP Air Conditioning
AIR-CONDITIONER
FILE NO. SVM-15032
MULTI TYPE
>
MMD-AP0186HP-TR
MMD-AP0246HP-TR
MMD-AP0276HP-TR
MMD-AP0366HP-TR
MMD-AP0486HP-TR
MMD-AP0566HP-TR
www.ampair.co.uk | [email protected]
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Summary of Contents for Toshiba MMD-AP0186HP-E

  • Page 1: Service Manual

    FILE NO. SVM-15032 SERVICE MANUAL AIR-CONDITIONER MULTI TYPE INDOOR UNIT Concealed Duct High Static Pressure Type < > MMD-AP0186HP-E MMD-AP0186HP-TR MMD-AP0246HP-E MMD-AP0246HP-TR MMD-AP0276HP-E MMD-AP0276HP-TR MMD-AP0366HP-E MMD-AP0366HP-TR MMD-AP0486HP-E MMD-AP0486HP-TR MMD-AP0566HP-E MMD-AP0566HP-TR R410A AMP Air Conditioning www.ampair.co.uk | [email protected]...

  • 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 ....................20 5. PARTS RATING ....................... 21 6. REFRIGERANT CYCLE DIAGRAM ................ 22 7. CONTROL OUTLINE ....................23 8.
  • Page 3 • 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, Tambol Bangkadi, Amphur 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) Model Main unit Cooling Heating ∗ ∗ MMD-AP0186HP-E ∗ ∗ MMD-AP0246HP-E ∗ ∗ MMD-AP0276HP-E ∗ ∗ MMD-AP0366HP-E ∗ ∗ MMD-AP0486HP-E ∗ ∗ MMD-AP0566HP-E ∗ ∗ MMD-AP0186HP-TR ∗ ∗ MMD-AP0246HP-TR ∗ ∗ MMD-AP0276HP-TR ∗...

  • Page 13: Specifications

    1. SPECIFICATIONS Concealed Duct High Static Pressure Type (50Hz) AP0186 AP0246 AP0276 AP0366 AP0486 AP0566 Model name MMD- HP-E(TR) HP-E(TR) HP-E(TR) HP-E(TR) HP-E(TR) HP-E(TR) Cooling/Heating capacity (Note 1) (kW) 5.6/6.3 7.1/8.0 8.0/9.0 11.2/12.5 14.0/16.0 16.0/18.0 Electrical Power supply 1phase 50Hz 230V(220V-240V) characteristics Running current 0.52 0.70...
  • Page 14 (60Hz) AP0186 AP0246 AP0276 AP0366 AP0486 AP0566 Model name MMD- HP-E HP-E HP-E HP-E HP-E HP-E Cooling/Heating capacity (Note 1) (kW) 5.6/6.3 7.1/8.0 8.0/9.0 11.2/12.5 14.0/16.0 16.0/18.0 1phase 60Hz 220V Electrical Power supply characteristics Running current 0.54 0.73 1.22 1.40 1.75 Power consumption (kW)

  • Page 15: Air Ducting Work

    2. AIR DUCTING WORK AP0246, 0276 type AP0186 type Standard Air Flow 1,200m Standard Air Flow 800m 200Pa-High 200Pa-High 200Pa-Mid 200Pa-Mid 150Pa-High 150Pa-High 200Pa-Low 200Pa-Low 100Pa-High 100Pa-High 150Pa-Low 150Pa-Low 100Pa-Low 100Pa-Low 50Pa-High 50Pa-High 50Pa-Low Spigod Flange 50Pa-Low pressure loss (option) Spigod Flange pressure loss (option) Filter set.
  • Page 16 AP0366 type AP0486 type Standard Air Flow 1,920m Standard Air Flow 2,100m 200Pa-Mid 200Pa-Mid 200Pa-High 200Pa-High 150Pa-High 150Pa-High 200Pa-Low 200Pa-Low 100Pa-High 150Pa-Low 150Pa-Low 100Pa-High 50Pa-High 50Pa-High 100Pa-Low 100Pa-Low Spigod Flange Spigod Flange pressure loss (option) pressure loss (option) 50Pa-Low 50Pa-Low Filter set.

  • Page 17: Construction Views (External Views)

    3. CONSTRUCTION VIEWS (EXTERNAL VIEWS) Main unit dimension Refrigerant pipe External dimension C connecting port (Liquid side) Hole for hanging bolt (4-Φ12×30) Refrigerant pipe connecting port (Gas side) Drain pipe connecting port Hanging bolt mounting pitch Φ125 Knockout hole For Auxiliary fresh air flange (Sold separately) Dimension AP018~027 type...
  • Page 18 Duct arrangement AP0186, AP0246, AP0276 940 (Outside) There are the head of the screw(n=4). Make a hole at the installation of inlet duct. 100 100 100 50 Electrical control box – 18 – AMP Air Conditioning www.ampair.co.uk | [email protected]...
  • Page 19 AP0366, AP0486, AP0566 (Unit : mm) (Outside) 1340 There are the head of the screw(n=4). Make a hole at the installation of inlet duct. 100 100 100 100 100 100 100 100 100 100 100 100 100 Electrical control box 1360 1375...

  • Page 20: Wiring Diagrams

    4. WIRING DIAGRAMS – 20 – AMP Air Conditioning www.ampair.co.uk | [email protected]...

  • Page 21: Parts Rating

    5. PARTS RATING Model MMD-AP 0186HP＊ 0246HP＊ 0276HP＊ 0366HP＊ 0486HP＊ 0566HP＊ ICF-340W250-2 MF-340W350-1 Fan motor MDP-1401, PMD-08D12TF-1 Drain pump motor FS-1A-31-3 Float switch EFM-MD12TF-1 Pulse motor EFM-40YGTF-1 EFM-60YGTCTH-1 Pulse motor valve Lead wire length:230mm TA sensor ∅4 size lead wire length:1000mm Vinyl tube (Blue) TC1 sensor TC2 sensor ∅6 size lead wire length:1000mm Vinyl tube (Black)

  • Page 22: 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 23: 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 24 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 25 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 26 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 27 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 28 Item Specification outline Remarks DC motor 1) When the fan operation has started, positioning of the stator and the rotor are performed. (Moves slightly with tap sound) 2) The motor operates according to the command from the indoor controller. Notes) •...

  • Page 29: Applied Control And Functions (Including Circuit Configuration)

    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 Display LED Key switch...

  • Page 30: 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. board (MCC-1631) EEPROM2 DC20V Remote controller...

  • Page 31: Connection Of Both Wired (Simple) Remote Controller And Wireless Remote 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 Schedule remote controller (Max. 2 units) Receiver P.C. board Display LED Display Function Display setup driver Receive Function setup SW Display...

  • Page 32: Indoor Print Circuit Board Mcc-1631

    8-2. Indoor Print Circuit Board MCC-1631 – 32 – AMP Air Conditioning www.ampair.co.uk | [email protected]...

  • Page 33: 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 34: 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 35: 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 36 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 37 Type DN code “10” Value Type Model ∗∗∗ ∗ Concealed Duct High Static Pressure Type MMD-AP 0006 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...

  • Page 38: Applied Control Of Indoor Unit

    8-6. Applied control of indoor unit Control system using remote controller interface (TCB-IFCB-4E2) 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 39 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 40 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 41 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 42 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 43 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 44 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 45 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 46 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 47 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 48 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 49 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 50 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 51 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 52 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 53 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 54: 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 55: 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 56 (Error detected by main remote controller) Check code Display of receiving unit 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 57 List of check codes (outdoor unit) IPDU: Intelligent Power Drive Unit (Inverter P.C. board) (Errors detected by SMMS outdoor interface - typical examples) : Flashing, : Goes off :Lighting, 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 58 Check code Display of receiving unit Outdoor 7-segment display TCC-LINK Indicator light block Typical fault site Description of error central control 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 59 Check code Display of receiving unit Outdoor 7-segment display TCC-LINK Indicator light block Typical fault site Description of error central control 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 60 (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 61: 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 62 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 63 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 64 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 65 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 66: 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 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 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 68 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 69 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 • Check wiring and connectors SMMS (Series 1) IPDU All stop Communication is disrupted 01: A3-IPDU1 error communication between IPDUs (P.C.
  • 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 TL sensor All stop Sensor resistance is infinity Check connection of TL sensor error connector. or zero (open / short circuit).
  • Page 71 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 Pd sensor All stop Output voltage of Pd Check connection of Pd sensor connector. error sensor is zero (sensor open-circuited).
  • Page 72 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 73 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 Compressor 2 All stop Compressor 2 case Check Compressor 2 case thermo case thermo circuit. thermo was activation activated.
  • 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 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 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 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 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 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 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 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 78 Check code Location Outdoor 7-segment display Error detection Main Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code Open phase detected, All stop Phase sequence Check the phase sequence of Phase sequence error error was detected outdoor power wiring.
  • Page 79 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 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 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 81 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) 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 82 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) Check for defect in fan IPDU error Fan IPDU over current ∗...
  • Page 83 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 84 Part name Checking procedure Concealed Duct High Measure the resistance value of each winding by using the tester. Static Pressure Type Fan motor ICF-340W250-2 Position Resistance value 12.4 ± 1.2 Ω Black–Red 12.4 ± 1.2 Ω Black–White Fan motor inside wiring diagram ICF-340W250-2 12.4 ±...

  • Page 85: 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 86: 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 ∗∗∗ ∗ series 43T6V499 MMD-AP 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 87 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 88 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 89 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 90 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 91 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 92: Detachments

    11. DETACHMENTS WARNING CAUTION Be sure to stop operation of the air conditioner before Be sure to put on gloves during working time; work and then turn off switch of the breaker. otherwise an injury will be caused by a part, etc. NOTE In a section, Detachments, the models are expressed as follows for convenience.
  • Page 93 No. Part name Procedure Remarks Electric 1. Detachment ③ 1) Perform works of 1 of ①. parts box 2) Remove the indoor/outdoor connecting wire and remote controller wire from each terminal block. 3) Remove the connectors which connected from the control P.C. board to other parts. NOTE First unlock the housing and then remove the connectors.
  • Page 94 No. Part name Procedure Remarks Drain pump 1. Detachment ⑤ Float switch 1) Perform works until opening of the electric parts box cover in works of 1 of ②. 2) Remove the connectors which connect to float switch of the drain pump from the control P.C. board. Connector CN34 : Float switch (3P, Red) position...
  • Page 95 No. Part name Procedure Remarks ⑦ Fan motor, 1. Detachment Fan motor wiring Fan, 1) Perform works until opening of the electric parts box CN333 cover in works of 1 of ②. Fan case CN334 2) Remove connectors for fan motor wiring from control P.C.
  • Page 96 No. Part name Procedure Remarks Fan motor, ⑦ ～ Continuance from the page in front ～ Fan, Fan case CAUTION When replacing the fan motor, be sure to exchange the clamp filter with the fan motor lead wire. Fan case (upper) Fixing screw Drain pan 1.
  • Page 97 No. Part name Procedure Remarks Heat 1. Detachment ⑨ exchanger 1) Recover the refrigerant gas and then remove the : Screw position AP018 type refrigerant pipe of the indoor unit. Heat exchanger fixed plate 2) Perform works of 1 of ⑧. End 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. MMD-AP0186HP-E(TR), MMD-AP0246HP-E(TR), MMD-AP0276HP-E(TR) 208 212 216 233 234 – 98 – AMP Air Conditioning www.ampair.co.uk | [email protected]...
  • Page 99 Q’ty/Set MMD- Location Part No. Description AP0186 AP0246 AP0276 AP0186 AP0246 AP0276 HP-E HP-E HP-E HP-TR HP-TR HP-TR 43T21457 MOTOR, FAN 43T20340 FAN, MULTI BLADE 43T70315 HOSE, DRAIN 43T44546 REFRIGERATION CYCLE ASSY 43T44547 REFRIGERATION CYCLE ASSY 43T22339 CASE, FAN, LOWER 43T22341 CASE, FAN, UPPER 43T72323...
  • Page 100 12-2. MMD-AP0366HP-E(TR), MMD-AP0486HP-E(TR), MMD-AP0566HP-E(TR) 208 212 216 233 234 – 100 – AMP Air Conditioning www.ampair.co.uk | [email protected]...
  • Page 101 Q’ty/Set MMD- Location Part No. Description AP0366 AP0486 AP0566 AP0366 AP0486 AP0566 HP-E HP-E HP-E HP-TR HP-TR HP-TR 43T21456 MOTOR, FAN 43T20339 FAN, MULTI BLADE 43T70315 HOSE, DRAIN 43T44548 REFIGERATION CYCLE ASSY 43T22340 CASE, FAN, LOWER 43T22342 CASE, FAN, UPPER 43T72324 PAN ASSY, DRAIN 43T82318...

  • Page 102: Electric Parts

    12-3. Electric Parts MMD-AP0186HP-E(TR), MMD-AP0246HP-E(TR) MMD-AP0276HP-E(TR), MMD-AP0366HP-E(TR) MMD-AP0486HP-E(TR), MMD-AP0566HP-E(TR) Location Parts No. Description Q,ty / Set 43T50347 SENSOR ASSY, SERVICE 43T50476 SERVICE-SENSOR 43T58320 REACTOR 43T60435 SERV-TERMINAL 43T60362 TERMINAL 43T6V499 PC BOARD ASSY 43T63356 HOLDER-TA 43T50477 SERVICE-SENSOR 43T63348 CLAMP, DOWN 43T63349 CLAMP, UP –...
  • Page 103 WARNINGS ON REFRIGERANT LEAKAGE Check of Concentration Limit Important The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas NOTE 2 : leaking out, its concentration will not exceed a set limit. The standards for minimum room volume are as follows.
  • Page 104 TOSHIBA CARRIER (THAILAND) CO.,LTD. 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANG, PATHUMTHANI 12000, THAILAND. AMP Air Conditioning www.ampair.co.uk | [email protected]...

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