Toshiba MMF-AP0156H-E (TR) Service Manual
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Toshiba MMF-AP0156H-E (TR) Service Manual

Toshiba MMF-AP0156H-E (TR) Service Manual

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SERVICE MANUAL

AIR-CONDITIONER (MULTI TYPE)
INDOOR UNIT
<Floor Standing Type>
MMF-AP0156H-E (TR)
MMF-AP0186H-E (TR)
MMF-AP0246H-E (TR)
MMF-AP0276H-E (TR)
MMF-AP0366H-E (TR)
MMF-AP0486H-E (TR)
MMF-AP0566H-E (TR)
R410A
FILE NO. A10-1420
PRINTED IN JAPAN, Jan., 2015
ToMo

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Summary of Contents for Toshiba MMF-AP0156H-E (TR)

  • Page 1: Service Manual

    FILE NO. A10-1420 SERVICE MANUAL AIR-CONDITIONER (MULTI TYPE) INDOOR UNIT <Floor Standing Type> MMF-AP0156H-E (TR) MMF-AP0186H-E (TR) MMF-AP0246H-E (TR) MMF-AP0276H-E (TR) MMF-AP0366H-E (TR) MMF-AP0486H-E (TR) MMF-AP0566H-E (TR) R410A PRINTED IN JAPAN, Jan., 2015 ToMo...

  • Page 2: Table Of Contents

    CONTENTS PRECAUTIONS FOR SAFETY ..................6 1. SPECIFICATIONS ....................13 2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ............ 14 2-1. MMF-AP0156H-E (TR), AP0186H-E (TR) ................14 2-2. MMF-AP0246H-E(TR), AP0276H-E (TR) ................15 2-3. MMF-AP0366H-E (TR), AP0486H-E (TR), MMF-AP0566H-E (TR) ........16 3. WIRING DIAGRAMS ....................17 4.

  • 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

    Manufacturer: Toshiba Carrier Corporation 336 Tadehara, Fuji-shi, Shizuoka-ken 416-8521 JAPAN Authorized Representative / Nick Ball TCF holder: Toshiba EMEA Engineering Director Toshiba Carrier UK Ltd. Porsham Close, Belliver Industrial Estate, PLYMOUTH, Devon, PL6 7DB. United Kingdom Hereby declares that the machinery described below:...
  • Page 12 Specifications Sound presser level (dBA) Model Weight (kg) Cooling Heating ∗ ∗ MMF-AP0156H-E ∗ ∗ MMF-AP0186H-E ∗ ∗ MMF-AP0246H-E ∗ ∗ MMF-AP0276H-E ∗ ∗ MMF-AP0366H-E ∗ ∗ MMF-AP0486H-E ∗ ∗ MMF-AP0566H-E ∗ ∗ MMF-AP0156H-TR ∗ ∗ MMF-AP0186H-TR ∗ ∗ MMF-AP0246H-TR ∗...

  • Page 13: Specifications

    1. SPECIFICATIONS Floor Standing Type 50Hz/60Hz 0156H 0186H 0246H 0276H 0366H 0486H 0566H MMF-AP Model name -E(TR) -E(TR) -E(TR) -E(TR) -E(TR) -E(TR) -E(TR) Cooling Capacity 11.2 14.0 16.0 Heating Capacity 12.5 16.0 18.0 Electrical Power supply 1phase 50Hz 230V(220V-240V) /1phase 60Hz 220V charastaristics (Separate power supply for indoor units is required.) Running current...

  • Page 14: Construction Views (External Views)

    2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) 2-1. MMF-AP0156H-E (TR), AP0186H-E (TR) – 14 –...

  • Page 15: Mmf-Ap0246H-E(Tr), Ap0276H-E (Tr)

    2-2. MMF-AP0246H-E(TR), AP0276H-E (TR) – 15 –...

  • Page 16: Mmf-Ap0366H-E (Tr), Ap0486H-E (Tr), Mmf-Ap0566H-E (Tr)

    2-3. MMF-AP0366H-E (TR), AP0486H-E (TR), MMF-AP0566H-E (TR) – 16 –...

  • Page 17: Wiring Diagrams

    3. WIRING DIAGRAMS – 17 –...

  • Page 18: Parts Rating

    4. PARTS RATING Indoor unit Model MMF-AP 0156H∗ 0186H∗ 0246H∗ 0276H∗ 0366H∗ 0486H∗ 0566H∗ Fan motor ICF-340D62-1 ICF-340WD109-1 Pulse motor EFM-MD12TF-1 Pulse motor valve EDM-B40YGTF-2 EDM-B60YGTF-1 Driving motor for vertical louver MP24Z4N TA sensor Lead wire length: 1200 mm Vinyl tube TC1 sensor Ø4 size lead wire length: 1200 mm Vinyl tube (Blue) TC2 sensor...

  • Page 19: Refrigerant Cycle Diagram

    5. 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 20: Control Outline

    6. 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 21 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 22 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 23 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 24 Item Specification outline Remarks Operation <Operation standby> ..Displayed on remote controller • “OPERATION standby STANDBY ” 1. When any of the DN codes listed below is displayed Heating standby displayed • “P05” - Detection of an open phase in the power supply wiring No display •...
  • Page 25 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 26: Applied Control And Functions (Including Circuit Configuration)

    7. APPLIED CONTROL AND FUNCTIONS (INCLUDING CIRCUIT CONFIGURATION) 7-1. Indoor controller block diagram 7-1-1. In Case of Connection of Wired (Simple) Remote Controller Wired(Simple) header remote controller (Up to 2 units) Schedule timer Display LCD Function setup Display driver Key switch Display LED Function setup DC5V...

  • Page 27: In Case Of Connection Of Wireless Remote Controller

    7-1-2. In Case of Connection of Wireless Remote Controller Indoor unit #1 (Header) Wireless remote (Follower) (Follower) controller kit Receiving Indoor control P.C. board P.C. board (MCC-1643) DC20V Remote controller Remote controller communication circuit communication circuit Emergent Power operation circuit EEPROM DC5V DC5V...

  • Page 28: Connection Of Both Wired (Simple) Remote Controller And Wireless Remote Controller

    7-1-3. Connection of Both Wired (Simple) Remote Controller and Wireless Remote Controller Wired(Simple) header remote controller Schedule timer Display LCD Function setup Display driver Key switch EEPROM Function setup DC5V DC5V Power Display LED Key switch circuit Power Remote controller Secondary circuit communication circuit...

  • Page 29: Indoor Print Circuit Board

    7-2. Indoor Print Circuit Board (MCC-1643) – 29 –...

  • Page 30: Optional Connector Specifications Of Indoor P.c. Board

    7-3. Optional connector specifications of indoor P.C. board – 30 –...

  • Page 31: Test Operation Of Indoor Unit

    7-4. 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 32: Method To Set Indoor Unit Function Dn Code

    7-5. Method to set indoor unit function DN code (When performing this task, be sure to use a wired remote controller.) <Procedure> To be performed only when system at rest Push the buttons simultaneously and hold for at least 4 seconds. The unit No.
  • Page 33 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 0001: 150H 0002: 2500H 0003: 5000H 0004: 10000H Dirty state of filter 0000: Standard 0000: Standard 0001: High degree of dirt (Half of standard time)
  • Page 34 Type DN code “10” Value Type Model ∗∗∗ ∗ 0013 Floor Standing MMF-AP Indoor Unit Capacity DN code “11” Value Capacity 0000* Invalid 0001 007 type 0003 009 type 0005 012 type 0007 015 type 0009 018 type 0011 024 type 0012 027 type 0013...

  • Page 35: Applied Control Of Indoor Unit

    7-6. 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 36 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 37 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 38 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 39 <Line (system) address> 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 40 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 41 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 42 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 43 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 44 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 45 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 46 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 47 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 48 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 49 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 50 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 51: Troubleshooting

    8. TROUBLESHOOTING 8-1. 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 52: Troubleshooting Method

    – 52 –...
  • Page 53 – 53 –...
  • Page 54 List of check codes (outdoor unit) IPDU: Intelligent Power Drive Unit (Inverter P.C. board) (Errors detected by SMMS-i 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 55 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 56 Check code Display of receiving unit TCC-LINK Outdoor 7-segment display Indicator light block Typical fault site Description of error central control or main remote Operation Timer Ready Sub-code Flash controller display Address setting has not been performed for one or SIM Indoor group address not –...
  • Page 57 (Errors detected by IPDU featuring in SMMS-i standard outdoor unit - typical examples) Check code Display of receiving unit TCC-LINK Outdoor 7-segment display Indicator light block Typical fault site Description of error central control or main remote OperationTimer Ready Flash Sub-code controller display...

  • Page 58: Troubleshooting Based On Information Displayed On Remote Controller

    8-3. 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 59 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 60 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 “8-2. Troubleshooting method”. : Goes off, : Goes on, : Flash (0.5 second)
  • Page 61 Lamp indication Check code Cause of trouble occurrence ⎫ Operation Timer Ready Heat exchanger sensor (TCJ) error ⎪ ⎪ Heat exchanger sensor (TC2) error ⎬ Temp. sensor error in indoor unit ⎪ Heat exchanger sensor (TC1) error ⎪ ⎭ Alternate flash Room temp.
  • Page 62 Others (Except check code) Lamp indication Check code Cause of trouble occurrence Operation Timer Ready — During test run Simultaneous flash Operation Timer Ready COOL/HEAT disagreement — (Automatic cooling/heating setup to automatic cooling/heating unavailable model, heating setup to cooling only model) Alternate flash –...

  • Page 63: Check Codes Displayed On Remote Controller And Smms Outdoor Unit (7-Segment Display On I/F Board) And Locations To Be Checked

    8-4. 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 Outdoor 7-segment display Error detection Main Description System status...
  • Page 64 Check code Location Outdoor 7-segment display Error detection Main Description System status Check items (locations) condition(s) remote detection Check controller Sub-code code Too many indoor All stop • Combined capacity of indoor • Check capacities of indoor units Overloading units connected units exceeds 135% of connected.
  • Page 65 Check code Location Outdoor 7-segment display Error detection Main Description System status Check items (locations) condition(s) remote detection Check controller Sub-code code SMMS (Series 1) IPDU All stop Communication is disrupted • Check wiring and connectors 01: A3-IPDU1 communication between IPDUs (P.C. boards) involved in communication between error error...
  • Page 66 Check code Location Outdoor 7-segment display Error detection Main Description System status Check items (locations) condition(s) remote detection Check controller Sub-code code TO sensor error All stop Sensor resistance is infinity • Check connection of TO sensor or zero (open / short circuit). connector.
  • Page 67 Check code Location Outdoor 7-segment display Error detection Main Description System status Check items (locations) condition(s) remote detection Check controller Sub-code code 01: Compressor IPDU Compressor error All stop Overcurrent is detected • Check for defect in compressor. 1 side (lockup) MG-CTT several seconds after startup •...
  • Page 68 Check code Location Outdoor 7-segment display Error detection Main Description System status Check items (locations) condition(s) remote detection Check controller Sub-code code 01: TK1 sensor Error in All stop Sensor resistance is infinity • Check connection of TK1 sensor error temperature or zero (open / short circuit).
  • Page 69 Check code Location Outdoor 7-segment display Error detection Main Description System status Check items (locations) condition(s) remote detection Check controller Sub-code code SMMS Oil detection All stop The temperature change of • Check the TK1 sensor installation. (1 series) circuit error TK1 cannot be detected even •...
  • Page 70 Check code Location Outdoor 7-segment display Error detection Main Description System status Check items (locations) condition(s) remote detection Check controller Sub-code code SMMS-i Oil level detection All stop No temperature change is • Check for disconnection of TK4 (4 series) circuit error detected by TK4 despite sensor.
  • Page 71 Check code Location Outdoor 7-segment display Error detection Main Description System status Check items (locations) condition(s) remote detection Check controller Sub-code code Cool / heat switch Only the target The heating operation was • Check the remote controller setting. unit error unit stopped performed without the coolonly (DN=“0F”)
  • Page 72 Check code Location Outdoor 7-segment display Error detection Main Description System status Check items (locations) condition(s) remote detection Check controller Sub-code code Discharge All stop Discharge temperature (TD1) • Check outdoor service valves (gas temperature TD1 exceeds 115 ˚C. side, liquid side) to confirm full error opening.
  • Page 73 Check code Location Outdoor 7-segment display Error detection Main Description System status Check items (locations) condition(s) remote detection Check controller Sub-code code Indoor unit Indoor fan motor Stop of • Motor speed measurements • Check connection of fan connector error corresponding unit continuously deviate from and wiring.
  • Page 74 Check code Location Outdoor 7-segment display Error detection Main Description System status Check items (locations) condition(s) remote detection Check controller Sub-code code Activation of All stop Pd sensor detects pressure • Check for defect in Pd pressure high-pressure equal to or greater than sensor.
  • Page 75 Check code Location Outdoor 7-segment display Error detection Main Description System status Check items (locations) condition(s) remote detection Check controller Sub-code code ∗ SMMS-i IPDU Outdoor fan IPDU All stop (Sub code: 0 • Check fan motor. (Series 4) error Fan IPDU over current •...
  • Page 76 Errors detected by TCC-LINK central control device Check code Location Outdoor 7-segment display Error detection Main Description System status Check items (locations) condition(s) remote detection Check controller Sub-code code TCC-LINK TCC-LINK central Continued Central control device is • Check for defect in central control control device operation unable to transmit signal.
  • Page 77 [P12 error] Power off. Is not connection error or Repair the connector disconnection on the connector connection. CN210 of indoor unit P.C. board? Disconnect the connector CN210 to the indoor P.C. board Does the Replace the indoor fan turn smoothly when fan motor.

  • Page 78: Diagnostic Procedure For Each Check Code (Indoor Unit)

    8-5. Diagnostic Procedure for Each Check Code (Indoor Unit) * Please refer to the multi outdoor unit service manual excluding these. Check code [E11 error] Is the connection for the UART communication Repair of connector connector (Internal board connection. CN521 red/Optional board CN1 red) normal? Is connector...

  • Page 79: Sensor Characteristics

    8-6. 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 80 <Maintenance/Check list> Aiming in environmental preservation, it is strictly recommended to clean and maintain the indoor/outdoor units of the operating air conditioning system regularly to secure effective operation of the air conditioner. It is also recommended to maintain the units once a year regularly when operating the air conditioner for a long time.

  • Page 81: Board Exchange Procedures

    9. P.C. BOARD EXCHANGE PROCEDURES Indoor unit 9-1. Replacement of indoor P.C. boards Part code Model type P.C. board type ∗∗∗ 431-6V-549 MMF-AP 6H series MCC-1643 <Note: when replacing the P.C. board for indoor unit servicing> The nonvolatile memory (hereafter called EEPROM, IC503) on the indoor unit P.C. board before replacement includes the model specific type information and capacity codes as the factory-set value and the important setting data which have been automatically or manually set when the indoor unit is installed, such as system/ indoor/group addresses, high ceiling select setting, etc.
  • Page 82 [1] Setting data read out from EEPROM The setting data modified on the site, other than factory-set value, stored in the EEPROM shall be read out. Step 1 Push button on the remote controller simultaneously for more than 4 seconds. * When the group operation control is performed, the unit No.
  • Page 83 B) In case that power of the indoor units cannot be turned on individually (Case 1) a) Remove temporarily the group wire connected to the terminal blocks A and B of the exchanged indoor unit. b) After connecting the remote controller wire only to the removed terminal block, turn on power of the indoor units and proceed to [3].
  • Page 84 Step 4 Write the on-site setting data to the EEPROM, such as address setting, etc. Perform the steps 1 and 2 above again. Step 5 Change the CODE No. (DN) to “ ” by pushing buttons for the temperature setting. (this is the setting for the filter sign lighting time.) Step 6 Check the setting data displayed at this time with the setting data put down in [1].
  • Page 85 Table 1. Setting data (CODE No. table (example)) CODE No. (DN) Item Setting data Factory-set value Filter sign lighting time Depending on Type Filter pollution level 0000: standard Central control address 0099: Not determined 0002: +2 ˚C Heating suction temperature shift (flooring installation type: 0) Cooling only 0000: Heat pump...

  • Page 86: Detachments

    10. 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. Part name Procedure Remarks...
  • Page 87 Part name Procedure Remarks Electric parts 1. Detachment 1) Carry out the work of item 1-1. Screw 1 2) Remove the Screw 1 (two screws) from the drip-proof cover on the bottom plate. Screw 1 * This work is unnecessary for Models Drip-proof AP036 to AP056.
  • Page 88 Part name Procedure Remarks Access panel 1. Detachment 1) Carry out the work of item 1-1. 2) Remove the two screws of the Access panel, slide the Access panel approx. 30mm upward, and remove the Access panel while drawing it toward you. •...
  • Page 89 Part name Procedure Remarks Fan, 1. Detachment Fan motor 1) Carry out the works of items 1-1 and 3-1. 2) Cut off the bundling band that fixes the fan <AP015 to AP027> motor lead wire to remove the fan motor Screw 1 Screw 1 Screw 1...
  • Page 90 Part name Procedure Remarks Heat 1. Detachment exchanger 1) Carry out the works of items 1-1 and 3-1. AP015 to AP027 <AP015 to AP027> 2) Remove the tube of the relay part of PMV, and then remove the relay connector. To PMV coil Upper shield Screw 2...

  • Page 91: Exploded Views And Parts List

    11. EXPLODED VIEWS AND PARTS LIST ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ MMF-AP0156H , MMF-AP0186H , MMF-AP0246H , MMF-AP0276H 221, 222, 223 255, 256 239, 240 226, 230, 227,...
  • Page 92 ∗∗∗∗ Q’ty/Set MMF-AP H-E(TR) Location Part No. Description 0156 0186 0246 0276 43109392 GRILLE, INLET 43100388 CASE ASSY 43F2C076 MOTOR, LOUVER 4312C133 MOTOR, FAN, ICF-340D62-1 43146707 MOTOR, PMV, EDM-MD12TF-3 43146726 BODY, PMV 43120271 FAN, MULTI BLADE 43180238 AIR FILTER 43139132 CLAMP, GRILLE 4310A119 CABINET ASSY...
  • Page 93 ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ MMF-AP0366H , MMF-AP0486H , MMF-AP0566H 247, 248 255, 256 227, 228, 243 231, 233, 245 – 93 –...
  • Page 94 ∗∗∗∗ Q’ty/Set MMF-AP H-E(TR) Location Part No. Description 0366 0486 0566 43109392 GRILLE, INLET 43102650 CASE ASSY 43F2C076 MOTOR, LOUVER 4312C134 MOTOR, FAN, ICF-340WD109-1 43146707 MOTOR, PMV, EDM-MD12TF-3 43146723 BODY, PMV 43120272 FAN, MULTI BLADE 43180238 AIR FILTER 43139132 CLAMP, GRILLE 4310A120 CABINET ASSY 43101357...
  • Page 95 E-Parts ∗∗∗∗ Q’ty/Set MMF-AP H-E(TR) Location Part No. Description 0156, 0186, 0246, 0276, 0366, 0486, 0566 44258091 REACTOR, CH-49-Z-T 43050425 SENSOR ASSY, SERVICE,TC(F6) 43150320 SENSOR ASSY, SERVICE,TG(F4) 43459017 PC BOARD ASSY, TCB-PCUC1E 43160575 TERMINAL BLOCK, 2P, 20A 4316V549 PC BOARD ASSY, MCC-1643 43F50426 SENSOR, SERVICE, TA 43160582...
  • Page 96 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 97 TOSHIBA CARRIER CORPORATION 72-34 Horikawa-cho, Saiwai-ku, Kawasaki-shi, Kanagawa 212-8585, JAPAN Copyright © 2015 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved.

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Mmf-ap0186h-e (tr)Mmf-ap0246h-e (tr)Mmf-ap0276h-e (tr)Mmf-ap0366h-e (tr)Mmf-ap0486h-e (tr)Mmf-ap0566h-e (tr)

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