Toshiba MMK-UP0271HP Series Service Manual
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Toshiba MMK-UP0271HP Series Service Manual

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FILE NO. SVM-21033-1
SERVICE MANUAL
MULT TYPE
<High Wall Types>
MMK-UP0271HP Series
MMK-UP0301HP Series
MMK-UP0361HP Series
Revised on April, 2021
R410A

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Summary of Contents for Toshiba MMK-UP0271HP Series

  • Page 1 FILE NO. SVM-21033-1 SERVICE MANUAL MULT TYPE <High Wall Types> MMK-UP0271HP Series MMK-UP0301HP Series MMK-UP0361HP Series Revised on April, 2021 R410A...

  • Page 2: Table Of Contents

    CONTENTS PRECAUTION FOR SAFETY ................6 NEW REFRIGERANT (R410A) ............... 11 SPECIFICATIONS ..................14 CONSTRUCTION VIEWS (EXTERNAL VIEWS) ........15 WIRING DIAGRAM ................... 16 PARTS RATING..................17 REFRIGERANTING CYCLE DIAGRAM ........... 18 CONTROL OUTLINE ................19 CONFIGURATION OF CONTROL CIRCUIT ..........25 APPLIED CONTROL ................
  • Page 3 Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained and is thus Qualified installer thoroughly acquainted with the knowledge related to this work.
  • 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 [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: Precaution 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 WARNING 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 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). Use of any parts which do not satisfy the required specifications may give rise to electric shocks, Use specified smoking and/ or a fire.
  • Page 9 When the refrigerant gas leaks during work, execute ventilation. If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the refrigerant and the closed room full with gas is dangerous because a shortage Ventilation of oxygen occurs.
  • Page 10 Only a qualified installer (∗1) or qualified service person (*1) is allowed to install the air conditioner. If the air conditioner is installed by an unqualified individual, a fire, electric shocks, injury, water leakage, noise and/or vibration may result. Before starting to install the air conditioner, read carefully through the Installation Manual, and follow its instructions to install the air conditioner.

  • Page 11: New Refrigerant (R410A)

    • New Refrigerant (R410A) This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer. 1. Safety Caution Concerned to New Refrigerant The pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change of refrigerant, the refrigerating oil has been also changed.
  • Page 12 4. Tools (1) Required Tools for R410A Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types. 1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22)) 2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22) 3) Tools commonly used for R410A and for conventional refrigerant (R22) The table below shows the tools exclusive for R410A and their interchangeability.
  • Page 13 Specifications Sound pressure level (dBA) Weight (kg) Model Main unit Cooling Heating MMK-UP0271HP-E MMK-UP0301HP-E MMK-UP0361HP-E MMK-UP0271HP-TR MMK-UP0301HP-TR MMK-UP0361HP-TR ∗ Under 70 dBA - 13 -...

  • Page 14: Specifications

    1. SPECIFICATIONS High wall type Model name MMK-UP0271HP-E(TR) MMK-UP0301HP-E(TR) MMK-UP0361HP-E(TR) 8.00 9.00 10.00 (kW) Cooling Capacity 27300 30710 34120 (Btu/h) 9.00 10.00 11.20 (kW) Heating Capacity 30710 34120 38210 (Btu/h) 1Ph. 230V(220V-240V) ~ 50Hz. & 1Ph. 220V(208V-230V) ~ 60Hz. Power supply Running current 0.30 0.46...

  • Page 15: Construction Views (External Views)

    2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) - 15 -...

  • Page 16: Wiring Diagram

    3. WIRING DIAGRAM - 16 -...

  • Page 17: Parts Rating

    4. PARTS RATING 4-1. Parts Rating Parts Name Type Specications Output (Rated) 61W, 280V DC Fan motor (for indoor) ICF-280-61-2 4 phase, DC 12V Louver motor MP24Z4N 518mm Thermo. Sensor (TA sensor) 10kΩ at 25°C Ø6, 450mm Heat exchanger sensor (TC sensor) 10kΩ...

  • Page 18: Refrigeranting Cycle Diagram

    5. REFRIGERANTING CYCLE DIAGRAM Liquid side Gas side Strainer Capillary tube Air heat exchanger at indoor side Pulse Motor Valve (PMV) Strainer Sensor (TCJ) Sensor (TC2) Sensor (TC1) Sensor Fan motor (TA) Functional part name Functional outline Pulse Motor Valve (Connector CN82 (6P): Blue) 1) Controls super heat in cooling operation 2) Controls under cool in heating operation...

  • Page 19: Control Outline

    6. CONTROL OUTLINE Indoor Unit Control Specifications Item Outline of specifications Remarks Power supply (1) Distinction of outdoor unit • Judgment of outdoor unit is reset. When the power supply is reset, the outdoor units are • Exchange of cooling-only distinguished, and control is exchanged according to the unit distinctive results.
  • Page 20 Item Outline of specifications Remarks Prevention of (1) In heating operation, the upper limit of the fan tap is set by cold air one with higher temperature of TC2 sensor and TCJ sensor. discharge • When B zone has continued for 6 minutes, the operation •...
  • Page 21 Item Outline of specifications Remarks Cooling oil While the outdoor unit is recovering cooling oil (refrigerant), the • Recovery operation (refrigerant) indoor units perform the following control tasks: normally takes place recovery control [common for operational (cooling thermo ON/thermo OFF/FAN), roughly every 2 hours.
  • Page 22 Item Outline of specifications Remarks Filter sign display (1) The operation time of the indoor fan is integrated and (None in wireless type) stored in memory, and the filter exchange signal is sent to the remote controller to display on the remote ∗...
  • Page 23 Item Outline of specifications Remarks Hi POWER When you press the Hi POWER button during cooling, operation heating or A operation, the air conditioner will start the (Wireless remote following operation. control specific • Cooling operation operations) Performs the cooling operation at 1°C lower than the setting temperature.
  • Page 24 Item Outline of specifications Remarks PRESET operation To operate the air conditioner with the setting memorized. (Wireless remote control specific (1) Press the PRESET button. The setting memorized operation) will be indicated and the air conditioner operates with regards to the setting. •...

  • Page 25: Configuration Of Control Circuit

    7. CONFIGURATION OF CONTROL CIRCUIT 7-1. Indoor Controller block diagram (MCC-1696) 7-1-1. Connection of wired remote controller Wired header remote controller (Up to 2 link) Schedule timer (weekly timer mode) Display Display LCD Function setup LCD driver Key switch Display LED Function setup Key switch DC5V...
  • Page 26 7-1-2. Connection of Wireless Remote Controller Central control remote controller (Sold separately) Follower unit Indoor unit #1 Header unit Indoor control P.C. board (MCC-1696) Central control communication circuit DC20V Remote controller communication circuit DC12V EEPROM Receiver and Display P.C. board DC5V TA sensor (WP-033)
  • Page 27 7-2. Indoor P.C. Board MCC-1696 - 27 -...
  • Page 28 - 28 -...
  • Page 29 7-3. Test run of indoor unit Cooling/Heating test run check The test run for cooling/heating can be preformed from either indoor remote controller or outdoor interface P.C.board. Refer to the Installation Manual and Service Manual of outdoor unit for the procedure of the test run from an outdoor interface P.C.board.
  • Page 30 <RBC-ASCU11- > Be sure to stop the air conditioner before making settings. (Change the setup while the air conditioner is not working.) Push and hold OFF timer button and [ ] setting button simultaneously for 10 seconds or more. [TEST] is displayed on the display part and the test run is permitted. Push ON/OFF button.
  • Page 31 In case of wireless remote controller Turn on the power of the air conditioner. When power is turned on for the first time after installation, it takes approx. 5 minutes until the remote controller becomes available. In the case of subsequent power-on, it takes approx. 1 minute until the remote controller becomes available.
  • Page 32 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 33: Applied Control

    8. APPLIED CONTROL 8-1. Method to set indoor unit function DN code (When performing this task, be sure to use a wired remote controller.) Procedure Be sure to stop the air conditioner before making settings <RBC-AMT > Push the buttons simultaneously and hold for at CODE No.
  • Page 34 Push OFF timer button to confirm the selected indoor unit. Code No. Set data Push the menu button to make Code No. [ ] flash. Change Code No. [ ] with [ ] setting button. Push the menu button to make Set data [ ] flash.
  • Page 35 Indoor unit function Code No. (DN Code) table (includes functions needed to perform applied control on site) Description Item At shipment Filter display delay timer 0000: None 0001: 150H Depending on model 0002: 2500H 0003: 5000H type 0004: 10000H t l i f 0001: High degree of dirt (Half of standard time) Central control address 0001: No.1 unit...
  • Page 36 Description Item At shipment ° : F ° ° : c i t Depending on model type High-ceiling adjustment (Air flow selection) Timer setting 0000: Available 0001: Unavailable 0000: Available (wired remote controller) (can be performed) (cannot be performed) Dual set point 0000: Unavailable 0002: Available 0000: Unavailable...
  • Page 37 Item Description At shipment Notice code 0000: None 0000: None number 01 0001 ~ 0255 : Notice code 0129 : Notice code (201) Notice code 0000: None 0130 : Notice code (202) number 02 (0001 ~ 0255 : TU2C-LINK only) Notice code 0000: None number 03...
  • Page 38 Type DN code "10" Value Type Model MMK-UP0271, 0301, 0361 High Wall Indoor Unit Capacity DN code "11" Value Capacity 0000* Disable 0271 0301 0361 - 38 -...
  • Page 39 8-2. Applied control of indoor unit Control system using Remote location ON/OFF control box (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.
  • Page 40 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 41 Auto-off feature control [Function] • This function controls the indoor units individually. It is used when the start operation from outside is unnecessary but the stop operation is necessary. • A card switch box or card lock helps protect customers from forgetting to turn off the indoor unit. (not including the following Card Input 3) •...
  • Page 42 [Control items] External contact terminal Function Close (Status that card is inserted) Open (Status that card is taken out) Manual prohibition release Manual prohibition Card Input 1 (Manual operation) (Operation stop) Manual prohibition release Manual prohibition Card Input 2 (Automatic operation) (Operation stop) Operation status continues Operation status continues and setting temperature...
  • Page 43 [The example of Card Input 5 setting] Code No. (DN) setting External contact terminal Case. [16A] [16b] [16C] [16d] [16F] [170] [171] [172] [173] Close (Status that card is inserted) Open (Status that card is taken n out) data data data data data...
  • Page 44 Notice code signal Notice code is a function dedicated to TU2C-Link communication. See service manual for u series outdoor unit for details of Notice code. [Function] • Notice Code is issued if there is signal input to connector of outdoor unit P.C. board. This can be used in cases such as when confirming state of outdoor unit (filter clogging, etc.) by air conditioner system.
  • Page 45 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 46 <Indoor unit address> 13 13 13 13 13 Push the TEMP. buttons repeatedly to set the CODE No. to Push the TIME buttons repeatedly to set an indoor unit address. Push the button. (It is OK if the display turns on.) <Group address>...
  • Page 47 <Indoor unit address> Push the [menu] button until the CODE No. flashes. And using the [ ] buttons, specify the CODE No.13. Push the [menu] button until the SET DATA flashes. And using the [ ] buttons, set an indoor unit address. Push the [OFF timer] button to confirm the SET DATA.
  • Page 48 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 know the indoor unit addresses though position of the indoor unit is recognized 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 49 To find an indoor unit’s position from its address When checking unit numbers controlled as a group <RBC-AMT > 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 50 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) <RBC-AMT > TEMP. ON / OFF TIMER SET MODE TIME SAVE VENT FILTER RESET TEST SWING/FIX...
  • Page 51 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.) <RBC-AMT >...
  • Page 52 <RBC-ASCU11- > 3, 4 2, 5 3, 4 3, 4 Push and hold the [menu + ] buttons at same time for more than 10 seconds. Push the [OFF timer] button to confirm the selected indoor unit. Push the [menu] button until the CODE No. flashes. And using the [ ] buttons, specify the CODE No.13.
  • Page 53 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 54 Check code clearing function How to clear the check code using the wired remote controller <RBC-AMT > Clearing a check code 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.
  • Page 55 <RBC-ASCU11- > Clearing a check code 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 check code is not cleared.) Use the service monitoring function of the remote controller.
  • Page 56 Monitoring function of wired remote controller <RBC-AMT > 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 57 Indoor service monitor list Code No. Data name Display format Unit Remote controller display example Room temperature (Use to control) ×1 °C Room temperature (Remote controller) ×1 °C Indoor suction air temperature (TA) ×1 °C Indoor coil temperature (TCJ) ×1 °C Indoor coil temperature (TC2) ×1...

  • Page 58: Troubleshooting

    9. TROUBLESHOOTING 9-1. Overview (1) Before engaging in troubleshooting (a) Applicable models All Super Modular Multi System (SMMS- ) models. (Indoor units: MM -UP , Outdoor units: MMY-M P (b) Tools and measuring devices required • Screwdrivers (Philips, flat head), spanners, long-nose pliers, nipper, pin to push reset switch, etc. •...
  • Page 59 9-2. Troubleshooting method The remote controllers (main remote controller and central control device) and the interface P.C. board of an outdoor unit are provided with an a 7-segment display (outdoor interface P.C. board) to display operational status. Using this self-diagnosis feature, the trouble site / trouble part may be identified in the event of a trouble by following the method described below.
  • Page 60 (Check code detected by remote controller) Check code Display of receiving unit Outdoor 7-segment display Indicator light block Typical trouble site Description of trouble Remote control Operation Timer Ready Sub-code Flash No master remote control, Signals cannot be received from indoor unit; –...
  • Page 61 List of Check Codes (Outdoor Unit) (Check code detected by outdoor interface - typical examples) If "HELLO" is displayed on the oudoor 7-segment for 1 minute or more, turn off the power supply once and then turn on the power supply again after passage of 30 seconds or more. When the same symptom appears, it is considered there is a possibility of I/F board trouble.
  • Page 62 Check code Display of receiving unit Outdoor 7-segment display Indicator light block Central Typical problem site Description of problem control or main remote Operation Timer Ready Sub-code Flash controller display Outdoor suction 01: TS1 sensor Outdoor suction temperature sensor temperature sensor 03: TS3 sensor (TS1,TS3) has been open/short-circuited.
  • Page 63 Check code Display of receiving unit Outdoor 7-segment display Indicator light block Central Typical problem site Description of problem control or main remote Operation Timer Ready Sub-code Flash controller display P.C.board P.C.board Compressor Fan Motor Compressor Fan Motor Trouble in number of There are insufficient number of P.C.
  • Page 64 (Check code detected by Inverter of Compressor featuring in outdoor unit - typical examples) Check code Display of receiving unit Outdoor 7-segment display Indicator light block Central Typical problem site Description of proplem control or main remote Operation Timer Ready Sub-code controller Flash...
  • Page 65 9-3. Troubleshooting based on information displayed on remote controller <RBC-AMT > (1) Checking and testing When a trouble 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 66 <RBC-ASCU11- > (1) Confirmation and check If a problem occurs with the air conditioner, the OFF timer indicator alternately shows the check code and the indoor Unit No. in which the problem occurred. Check code The indoor Unit No. in which the problem occurred.
  • Page 67 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 68 Cause of trouble Light block Check code Heat exchanger temperature sensor (TCJ) trouble Operation Timer Ready Heat exchanger temperature sensor (TC2) trouble Indoor unit temperature Heat exchanger temperature sensor (TC1) trouble sensor trouble Ambient temperature sensor (TA) trouble Alternate blinking Discharge temperature sensor (TF) trouble Discharge temperature sensor (TD1) trouble Discharge Operation Timer...
  • Page 69 Cause of trouble Light block Check code Operation Timer Ready Occupancy sensor trouble Outdoor EEPROM trouble Synchronized blinking Other (indications not involving check code) Cause of trouble Light block Check code Operation Timer Ready – Test run in progress Synchronized blinking Operation Timer Ready Setting incompatibility...
  • Page 70 9-4. Check Codes Displayed on Remote Controller and SMMS series 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 Check code detection Main Outdoor 7-segment display Description...
  • Page 71 Check code Location Check code detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code No. of indoor Indoor unit Indoor-outdoor All stop Condition 1 • Check power supply to units from communication One indoor unit or more indoor unit.
  • Page 72 Check code Location Check code detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code Too many All stop • Combined capacity of • Check capacities of indoor Capacity over indoor units indoor units is too large.
  • Page 73 Check code Location Check code detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code Detected Outdoor All stop Outdoor header unit • Check check code outdoor unit No. follower unit receives trouble code from displayed on outdoor trouble outdoor follower unit.
  • Page 74 Check code Location Check code detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code TD2 sensor All stop Sensor resistance is infinity • Check connection of TD2 trouble or zero (open/short circuit). sensor connector.
  • Page 75 Check code Location Check code detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code Outdoor All stop Readings of high-pressure • Check connection of high- pressure Pd sensor and low-pressure pressure Pd sensor sensor wiring Ps sensor are switched.
  • Page 76 Check code Location Check code detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code TD1 sensor All stop Discharge temperature of • Check installation of TD1 miswiring compressor 1 (TD1) does sensor.
  • Page 77 Check code Location Check code detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code 01: TK1 oil Oil level All stop No temperature change is • Check for disconnection of circuit trouble detection detected by TK1 despite TK1 sensor.
  • Page 78 Check code Location Check code detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code Outdoor All stop Initial setting of I/F P.C. • Check model setting of — capacity not set board has not been P.C.
  • Page 79 Check code Location Check code detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code 1∗: Compressor Activation of All stop High-pressure SW is • Check connection of high- 1 side high-pressure activated.
  • Page 80 Check code Location Check code detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code Detected indoor Indoor unit Indoor overflow All stop • Float switch operates. • Check float switch address trouble •...
  • Page 81 Check code Location Check code detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code Discharge All stop Discharge temperature • Check outdoor service temperature (TD2) exceeds 115 ˚C. valves (gas side, liquid TD2 trouble side) to confirm full opening.
  • Page 82 Check code Location Check code detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code 1∗: Fan P.C. Fan INV. Outdoor fan All stop Protected operation of Fan • Check fan motor. board 1 P.C.
  • Page 83 Check codes Detected by Central Control Device Check code Location Check code detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check detection Sub-code controller code Central Central control Continued Central control device is • Check for failure in central control device operation...
  • Page 84 In case of wireless remote controller REQUIREMENT 1. For the operation procedure, be sure to follow the matter. 2. Finish the forced cooling operation in a short time because it applies excessive strength to the air condi- tioner. 3. A test operation of forced heating is unavailable. Perform a test operation by heating operation using the switches of the remote controller.
  • Page 85 9-5. Sensor Characteristics Indoor Unit Temperature sensor characteristics Indoor TA sensor Temperature Resistance value [k ] [C˚] 33.9 26.1 20.3 15.9 12.6 Resistance 10.0 [k ] Temperature [˚C] Indoor TC1 sensor Resistance Temperature [C˚] value [k ] 99.9 74.1 55.6 42.2 32.8 25.4...

  • Page 86: Installation Manual

    10. INSTALLATION MANUAL Original instruction Please read this Installation Manual carefully before installing the Air Conditioner. • This Manual describes the installation method of the indoor unit. • For installation of the outdoor unit, follow the Installation Manual attached to the outdoor unit. ADOPTION OF NEW REFRIGERANT This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the conventional refrigerant R22 in order to prevent destruction of the ozone layer.
  • Page 87 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 88 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. Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury, burns, electric shocks and other injuries.
  • Page 89 Warning indications on the air conditioner unit Warning indication Description WARNING WARNING ELECTRICAL SHOCK HAZARD ELECTRICAL SHOCK HAZARD Disconnect all remote Disconnect all remote electric power supplies before servicing. electric power supplies before servicing. WARNING WARNING Moving parts. Moving parts. Do not operate unit with grille Do not operate unit with grille removed.

  • Page 90: Precautions For Safety

    PRECAUTIONS FOR SAFETY • Ensure that all Local, National and International regulations are satisfied. • Read this “PRECAUTIONS FOR SAFETY” carefully before Installation. • The precautions described below include the important items regarding safety. Observe them without fail. • After the installation work, perform a trial operation (test run) to check for any problem.
  • Page 91 • Only a qualified installer(*1) or qualified service person(*1) is allowed to undertake work at heights using a stand of 50 cm or more or to remove the front panel of the indoor unit to undertake work. • Wear protective gloves and safety work clothing during installation, servicing and removal.
  • Page 92 • To transport the air conditioner, do not take hold of the bands around the packing carton. You may injure yourself if the bands should break. • Do not place any combustion appliance in a place where it is directly exposed to the wind of air conditioner, otherwise it may cause imperfect combustion.
  • Page 93 • When the air conditioner has been installed or relocated, follow the instructions in the Installation Manual and purge the air completely so that no gases other than the refrigerant will be mixed in the refrigerating cycle. Failure to purge the air completely may cause the air conditioner to malfunction.
  • Page 94 Test run • Before operating the air conditioner after having completed the work, check that the electrical control box cover of the indoor unit and service panel of the outdoor unit are closed, and set the circuit breaker to the ON position. You may receive an electric shock if the power is turned on without first conducting these checks.
  • Page 95 CAUTION New refrigerant air conditioner installation • This air conditioner adopts the new HFC refrigerant (R410A) which does not destroy ozone layer. • The characteristics of R410A refrigerant are; easy to absorb water, oxidizing membrane or oil, and its pressure is approx. 1.6 times higher than that of refrigerant R22.

  • Page 96: Accessory Parts

    ACCESSORY PARTS Part name Q’ty Shape Usage (Hand over to customers) (For other languages that do not appear in Installation Manual This manual this installation Manual, please refer to the enclosed CD-R.) (Hand over to customers) (For other languages that do not appear in Owner’s Manual this installation Manual, please refer to the enclosed CD-R.)

  • Page 97: Selection Of Installation Place

    SELECTION OF INSTALLATION PLACE WARNING • Install the air conditioner at enough strong place to withstand the weight of the unit. If the strength is not enough, the unit may fall down resulting in injury. CAUTION • Do not install the air conditioner in a location subject to a risk of exposure to a combustible gas.
  • Page 98 Installation diagram of Indoor and outdoor units For the rear left, bottom left and left piping Packing material Wall Split Hook Installation plate SPACER Hook Split out 2 pieces of SPACER from indoor unit packing material, insert between the indoor unit and wall to tilt the indoor unit for better operation.
  • Page 99 CAUTION • Direct sunlight to the indoor unit’s wireless receiver should be avoided. • The microprocessor in the indoor unit should not be too close to RF noise sources. (For details, see the owner’s manual.) Wireless remote controller • A place where there are no obstacles such as a curtain that may block the signal from the indoor unit. •...

  • Page 100: Installation Of Indoor Unit

    INSTALLATION OF INDOOR UNIT WARNING Install the air conditioner certainly to sufficiently withstand the weight. If the strength is insufficient, the unit may fall down resulting in human injury. Perform a specified installation work to guard against strong wind or earthquake. An incomplete installation can cause accidents by the units falling and dropping.

  • Page 101: Cutting A Hole And Mounting Installation Plate

    CUTTING A HOLE AND MOUNTING INSTALLATION PLATE Cutting a hole When the installation plate is directly mounted on the wall In case of installing the refrigerant pipes from the rear: 1. Securely fit the installation plate onto the wall by screwing it in the upper and lower Decide the hole position for piping at parts to hook up the indoor unit.

  • Page 102: Piping And Drain Hose Installation

    PIPING AND DRAIN HOSE INSTALLATION Piping and drain hose forming * Since dewing results in a machine trouble, make sure to insulate both connecting pipes. (Use polyethylene foam as insulating material.) Rear right Rear left Bottom left Left Bottom right Right 1.
  • Page 103 How to remove the drains cap Clip the drain cap by needle-nose pliers and pull out. Drain cap How to fix the drains cap 1) Insert hexagonal wrench (dia. 4 mm) in a centre head. Drain cap 2) Firmly insert drains cap. Do not apply lubricating oil (refrigerant machine oil) when inserting the drain cap.
  • Page 104 In case of bottom right or bottom left piping • After scribing slits of the front panel with a knife or a marking-off pin, cut them with a pair of nippers or an equivalent tool. Slit Left-hand connection with piping Bend the connecting pipe so that it is laid within 43 mm above the wall surface.
  • Page 105 Gas side Heat insulator provided Indoor unit shield pipe Liquid side Cut the heat insulator of the gas pipe (locally procured) leaving a 10 mm overlap with the shield of the shield pipe. Heat insulator wrapping cross section A-A Make the slit part of heat insulator to upward. ▼...

  • Page 106: Indoor Unit Fixing

    INDOOR UNIT FIXING DRAINAGE 1. Pass the pipe through the hole in the wall, 1. Run the drain hose sloped downwards. and hook the indoor unit on the installation NOTE plate at the upper hooks. • Hole should be made at a slight downward 2.

  • Page 107: Refrigerant Piping

    REFRIGERANT PIPING Refrigerant Piping Permissible Piping Length and Height Difference 1. Use copper pipe with 0.8 mm or more thickness. (In case pipe size is dia. 15.9, They vary according to the outdoor unit. with 1.0 mm or more.) For details, refer to the Installation Manual 2.
  • Page 108 REQUIREMENT CAUTION Tightening with an excessive torque may crack • Do not scratch the inner surface of the flared the nut depending on installation conditions. part when removing burrs. Tighten the nut within the specified tightening • Flare processing under the condition of torque.
  • Page 109 Open fully valves of the outdoor Wireless remote controller A-B unit selection Open the valve of the outdoor unit fully. Using 2 wireless remote controllers for the A hexagonal wrench is required for opening the respective air conditioners, when the 2 air valve.

  • Page 110: Electrical Connection

    ELECTRICAL CONNECTION WARNING REQUIREMENT 1. Using the specifi ed wires, ensure to connect • For power supply wiring, strictly conform to the wires, and fi x wires securely so that the the Local Regulation in each country. external tension to the wires do not affect •...
  • Page 111 Power supply wire and communication wires specifi cations Power supply wire and communication wires are procured locally. For the power supply specifi cations, follow the table below. Power supply wiring and communication wiring are to be procured locally. For specifi cations of the power capacity of the outdoor unit and the power supply wires, refer to the Installation Manual supplied with the outdoor unit.
  • Page 112 <In the case of combining with outdoor units of Super Modular Multi System u series (SMMS-u)> Uv line and Uc line (L2, L3, L4) 0.5 mm² (Up to 500 m) Wire size : (2-core shield wire, non-polarity) 0.75 to 1.25 mm² (Up to 1000 m) Uh line (L1) 0.75 to 1.25 mm²...
  • Page 113 <In the case of combining with outdoor units other than Super Modular Multi System u series (SMMS-u)> Control wiring between indoor units, and outdoor unit (L2, L3) (2-core shield wire, non-polarity) 1.25 mm² (Up to 1000 m) Wire size : 2.0 mm²...
  • Page 114 Wired remote controller wiring This wiring is not required when using the supplied wireless remote controller. • For wiring remote controllers a 2 core non polarity wire must be used. Wired remote controller wiring, remote controller inter-unit wiring Wire size: 0.5 mm² to 2.0 mm² In case of wired type only Up to 500 m Total wire length of wired remote controller wiring and remote...
  • Page 115 Wiring between indoor and outdoor units NOTE • A wiring diagram below is an example for connection to SMMS-u series. For connecting to other outdoor unit series, refer to the Installation Manual attached to the outdoor unit to be connected. Wiring example Outdoor Power supply Outdoor Power supply...
  • Page 116 Wiring Connection Power supply terminal block Terminal block for How to connect the power supply wiring communication/remote and control wiring controller wiring The power supply wire and the control wire can be Screw connected without removing the front panel. Terminal cover Earth screw REQUIREMENT Connect the power supply wire after connecting...
  • Page 117 Wiring connection for fl ow selector unit How to connect the wiring of fl ow selector unit Connect the power supply wire and the communication wire supplied with the fl ow selector unit to the indoor unit. 1. Remove the air inlet grille. Open the air inlet grille upward and pull it toward you.

  • Page 118: Applicable Controls

    APPLICABLE CONTROLS REQUIREMENT When the air conditioner is used for the fi rst time, it will take some moments after the power has been turned on before the remote controller becomes available for operations: This is normal and is not indicative of trouble. •...
  • Page 119 Change of lighting time of filter Push the menu button to make Set data sign ] flash. Change Set data [ with [ ] [ ] setting button. According to the installation condition, the lighting time of the filter sign (Notification of filter cleaning) Push OFF timer button.
  • Page 120 Adjustment of air direction 1. Using the remote controller switch, change the up/down air direction by moving the horizontal louver. 2. Adjust the right/left air direction by bending the vertical grille inside of the air outlet port with hands. REQUIREMENT Do not touch the horizontal louver directly with hands;...

  • Page 121: Test Run

    TEST RUN Before test run • Before turning on the circuit breaker, carry out the following procedure. 1) By using insulation tester (500VMΩ), check that resistance of 1MΩ or more exists between the terminal block L to N and the earth (grounding).
  • Page 122 Wired remote controller In case of wireless remote controller (Forced test operation is performed in a Be sure to stop the air conditioner before different way.) making settings. (Change the setup while the air conditioner is not working.) REQUIREMENT • For the operation procedure, be sure to follow the Owner’s Manual.

  • Page 123: Troubleshooting

    TROUBLESHOOTING A wired remote controller is necessary for this function. This function cannot be operate with a wireless remote controller. Confirmation and check If a problem occurs with the air conditioner, the OFF timer indicator alternately shows the check code and the indoor Unit No.
  • Page 124 Check method On the remote controller (Wired remote controller, Central control remote controller) and the interface P.C. board of the outdoor unit (I/F), a check display LCD (Remote controller) or 7-segment display (on the outdoor interface P.C. board) to display the operation is provided. Therefore the operation status can be known.
  • Page 125 Check code Wireless remote controller Wired Sensor block display of Judging Outdoor unit 7-segment display Check code name remote receiving unit device controller Auxiliary code Operation Timer Ready Flash display 01: Outdoor unit of other line connected Other line connected during automatic 02: Indoor unit of other line address connected...
  • Page 126 Check code Wireless remote controller Wired Sensor block display of Judging Outdoor unit 7-segment display Check code name remote receiving unit device controller Auxiliary code Operation Timer Ready Flash display — Low pressure protective operation — Oil level down detective protection 01: TK1 sensor trouble 02: TK2 sensor trouble 03: TK3 sensor trouble...
  • Page 127 Check code Wireless remote controller Wired Sensor block display of Judging Outdoor unit 7-segment display Check code name remote receiving unit device controller Auxiliary code Operation Timer Ready Flash display Outdoor heat exchanger freezing — trouble — — Indoor unit fan motor trouble Indoor unit —...
  • Page 128 *1 Inverter quantity information (Super Modular Multi System e and u series (SMMS-e, SMMS-u)) Comp. Fan Inverter Inverter Trouble Comp. 1 Comp. 2 Comp. 1 + Comp. 2 Fan 1 Comp. 1 + Fan 1 Comp. 2 + Fan 1 Comp.
  • Page 129 WARNINGS ON REFRIGERANT LEAKAGE Check of Concentration Limit NOTE 2 The room in which the air conditioner is to be The standards for minimum room volume are as installed requires a design that in the event of follows. refrigerant gas leaking out, its concentration will (1) No partition (shaded portion) not exceed a set limit.
  • Page 130 CONFIRMATION OF INDOOR UNIT SETUP Prior to delivery to the customer, check the address and setup of the indoor unit, which has been installed in this time and fill the check sheet (Table below). Data of four units can be entered in this check sheet. Copy this sheet according to the No.

  • Page 131: How To Replace Main Parts

    11. HOW TO REPLACE THE MAIN PARTS WARNING • Since high voltages pass through the electrical parts, turn off the power without fail before proceeding with the repairs. Electric shocks may occur if the power plug is not disconnected. • After the repairs have been completed (after the front panel and cabinet have been installed), perform a test run, and check for smoking, unusual sounds and other abnormalities.
  • Page 132 Part name Procedures Remarks Front panel 1) Follow to the procedure in the item 2) Securely remove screws (3 pcs.) at the front panel. 3) Open 4 screw caps and securely remove [How to open screw cap] screws (4 pcs.) at the front panel. Step 1) Push up screw cap Screw cap Step 2) Lower screw cap...
  • Page 133 Part name Procedures Remarks Electric part 1) Follow the procedure item 3 . box assembly 2) Remove screw holding the electric part cover then remove fixing screw of base camp and remove it. TA sensor Connectors Fan motor connector Louver motor Base clamp Earth line connector...
  • Page 134 Part name Procedures Remarks Horizontal louver 1) Remove shaft of the horizontal louver Drain pan from the drain pan. (First remove 2 the Bend and center shafts then remove the other shafts.) remove Horizontal louver (Back) Horizontal louver (Front) 1) Follow the procedure item 3 . Drain hose 2) The drain hose can be removed by removing Drain pan...
  • Page 135 Part name Procedures Remarks 1) Follow to the procedure in the item ③ Drain pan Middle connector Unit display assembly 2) Remove screw holding the electric part cover. 3) Remove fixing screws of the unit display and remove unit display. 4) Disconnect the middle connector of louver motor code (5P) 5) Remove 2 fixing screws from the drain pan...
  • Page 136 Part name Procedures Remarks Vertical louver 1) Follow the procedure item 3 and 7 . assembly 2) Remove fixing screw from the vertical louver set then remove them from the body back. Vertical louver set Screw Fan motor Follow the procedure item 3 , 7 and 8 . Loosen the set screw of the cross flow fan.
  • Page 137 Part name Procedures Remarks Follow the procedure item 3 , 7 and 8 . Cross flow fan Heat exchanger Loosen the set screw of the cross flow fan. (Refer to the 9 for how to remove set screw.) Remove 4 fixing screws from the bearing base then remove it from the main unit.
  • Page 138 Part name Procedures Remarks Heat exchanger Follow the procedure item ③ and ④. Heat exchanger (Evaporator) Remove 4 fixing screws at the left side of the heat exchanger. Screw Heat exchanger Remove 3 fixing screw at the upper right side of the heat exchanger.
  • Page 139 Microcomputer Part name Procedure Remarks Common procedure Replace terminal block,  Perform procedure item ③ and ④of Indoor microcomputer ass’y and the Unit. P.C. board ass’y. - 139 -...

  • Page 140: Replacement Of P.c. Board For Indoor Unit Servicing

    12. Replacement of P.C. Board for Indoor Unit Servicing <Models> MMK-UP****HP-E(TR) Series <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 141 TEST Step 3 After writing down all setting data, press button to return to the normal stop status. (It takes approx. 1 min until the remote control operation is available again.) CODE No.required at least 1. The CODE No. for the Indoor unit type and Indoor unit capacity Contents are required to set the rotation number setting of the fan.
  • Page 142 UNIT LOUVER Step 2 Every time when the button is pressed, the indoor unit Nos. in the group control operation are displayed in order. (The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values.) Specify the indoor unit No.with its P.C.
  • Page 143 Table 1.Setting data(CODE No. table(example)) Item Setting data Factory-set value Filter display delay timer 0002 : 2500H Dirty state of filter 0000 : Standard Central control address 00Un/0099 : Unfixed Specific indoor unit priority 0000 : No priority Heating suction temperature shift Automatic mode 0001 : No automatic Cooling only...

  • Page 144: Exploded Views And Parts List

    13. EXPLODED VIEWS AND PARTS LIST Indoor Unit ELECTRICAL PARTS ASSEMBLY Location Part Location Part Description Description 43T00842 FRONT PANEL ASSY 43T49381 PIPE, SHIELD 43T00771 CAP SCREW ASSY 43T49383 SEAL, FRONT 43T09571 GRILLE OF AIR INLET ASSY 43T49384 SEAL, UP 43T80356 AIR FILTER 43T49043...
  • Page 145 Indoor Unit (Part-E) Location Part Location Part Description Description 43TN9351 PC BOARD ASSY 43T50304 SENSOR;HEAT EXCHANGER 43T60448 TERMINAL 43T50317 SENSOR;HEAT EXCHANGER 43T60078 TERMIMAL BLOCK 43T6V932 PC BOARD ASSY 43T50391 SENSOR; THERMOSTAT 43T63356 HOLDER-TA - 145 -...
  • Page 146 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 147 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANG, PATHUMTHANI 12000, THAILAND.

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Mmk- up0301hp seriesMmk-up0361hp series

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