Page 1 FILE NO. A10-2004 AIR CONDITIONER (MULTI TYPE) SERVICE MANUAL Indoor unit <Compact 4-way cassette type> <2-way cassette type> MMU-UP0051MH-E(TR) MMU-UP0071WH-E(TR) MMU-UP0071MH-E(TR) MMU-UP0091WH-E(TR) MMU-UP0091MH-E(TR) MMU-UP0121WH-E(TR) MMU-UP0121MH-E(TR) MMU-UP0151WH-E(TR) MMU-UP0151MH-E(TR) MMU-UP0181WH-E(TR) MMU-UP0181MH-E(TR) MMU-UP0241WH-E(TR) MMU-UP0271WH-E(TR) MMU-UP0301WH-E(TR) MMU-UP0361WH-E(TR) MMU-UP0481WH-E(TR) MMU-UP0561WH-E(TR) <1-way cassette type> <Floor standing cabinet type> MMU-UP0151SH-E(TR) MML-UP0071H-E(TR) MMU-UP0181SH-E(TR)
Page 2: Table Of Contents
CONTENTS PRECAUTIONS FOR SAFETY ..................6 1. SPECIFICATIONS ....................12 1-1. Compact 4-way cassette type ................... 12 1-2. 2-way cassette type ......................14 1-3. 1-way cassette type ......................17 1-4. Floor standing cabinet type ....................18 1-5. Floor standing concealed type ..................19 1-6.
Page 3 9. TROUBLESHOOTING .................... 91 9-1. Overview ..........................91 9-2. Troubleshooting method ....................92 9-3. Troubleshooting based on information displayed on remote controller ..... 98 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 ........103 9-5.
Page 4 • 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 5 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 6: Precautions For Safety
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 WARNING ELECTRICAL SHOCK HAZARD ELECTRICAL SHOCK HAZARD Disconnect all remote Disconnect all remote electric power supplies before servicing.
Page 7 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 8 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 9 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 10 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 11 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 12: Specifications
1. SPECIFICATIONS 1-1. Compact 4-way cassette type Model name MMU-UP0051MH-E(TR) MMU-UP0071MH-E(TR) MMU-UP0091MH-E(TR) MMU-UP0121MH-E(TR) Cooling Capacity (*1) Heating Capacity (*1) Electrical Power supply 220-240 ~, 50Hz / 208-230 ~, 60Hz i t s 0.16 / 0.15 0.23 / 0.21 0.24 / 0.22 0.25 / 0.23 0.016 / 0.016 0.023 / 0.023...
Page 13 Model name MMU-UP0151MH-E(TR) MMU-UP0181MH-E(TR) Cooling Capacity (*1) Heating Capacity (*1) 220-240 ~, 50Hz / 208-230 ~, 60Hz i t s 0.28 / 0.26 0.46 /0.46 0.030 / 0.030 0.052 / 0.052 0.50 / 0.47 0.80 / 0.81 l a i n i l (*2) l l e...
Page 14: 2-Way Cassette Type
1-2. 2-way cassette type Model name MMU- UP0071WH-E(TR) UP0091WH-E(TR) UP0121WH-E(TR) UP0151WH-E(TR) Cooling / Heating capacity (*1) 2.2 / 2.5 2.8 / 3.2 3.6 / 4.0 4.5 / 5.0 220-240V ~, 50Hz / 208-230V ~, 60Hz i t s 0.21 / 0.22 0.22 / 0.23 0.024 / 0.024 0.026 / 0.026...
Page 15 Model name MMU- UP0181WH-E(TR) UP0241WH-E(TR) UP0271WH-E(TR) UP0301WH-E(TR) Cooling / Heating capacity (*1) 5.6 / 6.3 7.1 / 8.0 8.0 / 9.0 9.0 / 10.0 220-240V ~, 50Hz / 208-230V ~, 60Hz 0.37 / 0.39 characteristics Running current 0.28 / 0.29 0.43 / 0.46 0.045 / 0.045 Power consumption...
Page 16 Model name MMU- UP0361WH-E(TR) UP0481WH-E(TR) UP0561WH-E(TR) Cooling / Heating capacity (*1) 11.2 / 12.5 14.0 / 16.0 16.0 / 18.0 220-240V ~, 50Hz / 208-230V ~, 60Hz characteristics Running current 0.50 / 0.53 0.57 / 0.59 0.77 / 0.81 Power consumption 0.081 / 0.081 0.091 / 0.091 0.131 / 0.131...
Page 17: 1-Way Cassette Type
1-3. 1-way cassette type Model name MMU- UP0151SH-E(TR) UP0181SH-E(TR) UP0241SH-E(TR) Cooling / Heating capacity (*1) 4.5 / 5.0 5.6 / 6.3 7.1 / 8.0 220-240V ~ 50Hz / 208-230V ~ 60Hz characteristics Running current 0.34 / 0.36 0.36 / 0.37 0.54 / 0.57 Power consumption 0.039 / 0.039...
Page 18: Floor Standing Cabinet Type
1-4. Floor standing cabinet type UP0071H-E(TR) UP0091H-E(TR) UP0121H-E(TR) UP0151H-E(TR) UP0181H-E(TR) UP0241H-E(TR) Cooling/Heating capacity (*1) 2.2 / 2.5 2.8 / 3.2 3.6 / 4.0 4.5 / 5.0 5.6 / 6.3 7.1 / 8.0 220-240V ~, 50Hz / 220V ~, 60Hz 0.26 / 0.25 0.43 / 0.44 0.47 / 0.53 Electrical...
Page 19: Floor Standing Concealed Type
1-5. Floor standing concealed type UP0071BH-E(TR) UP0091BH-E(TR) UP0121BH-E(TR) UP0151BH-E(TR) UP0181BH-E(TR) UP0241BH-E(TR) Cooling/Heating capacity (*1) 2.2 / 2.5 2.8 / 3.2 3.6 / 4.0 4.5 / 5.0 5.6 / 6.3 7.1 / 8.0 220-240V ~, 50Hz / 220V ~, 60Hz 0.25 / 0.27 0.45 / 0.46 0.46 / 0.51 Electrical...
Page 20: Floor Standing Type
1-6. Floor standing type UP0151H-E(TR) UP0181H-E(TR) UP0241H-E(TR) UP0271H-E(TR) UP0361H-E(TR) UP0481H-E(TR) UP0561H-E(TR) Cooling/Heating capacity (*1) 4.5 / 5.0 5.6 / 6.3 7.1 / 8.0 8.0 / 9.0 11.2 / 12.5 14.0 / 16.0 16.0 / 18.0 220-240V ~ 50Hz / 208-230V ~ 60Hz 0.37 / 0.38 0.55 / 0.58 0.82 / 0.86...
Page 21: Construction Views (External Views)
2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) 2-1. Compact 4-way cassette type MMU- UP0051MH-E(TR), UP0071MH-E(TR), UP0091MH-E(TR), UP0121MH-E(TR), UP0151MH-E(TR), UP0181MH-E(TR) – 21 –...
Page 22: 2-Way Cassette Type
2-2. 2-way cassette type MMU-UP0071WH-E(TR), UP0091WH-E(TR), UP0121WH-E(TR), UP0151WH-E(TR) – 22 –...
Page 23 MMU-UP0181WH-E(TR), UP0241WH-E(TR), UP0271WH-E(TR), UP0301WH-E(TR) – 23 –...
Page 24 MMU-UP0361WH-E(TR), UP0481WH-E(TR), UP0561WH-E(TR) – 24 –...
Page 25: 1-Way Cassette (Sh) Type
2-3. 1-way cassette (SH) type MMU-UP0151SH-E(TR), UP0181SH-E(TR), UP0241SH-E(TR) – 25 –...
Page 26: Floor Standing Cabinet Type
2-4. Floor standing cabinet type MML-UP0071H-E(TR), UP0091H-E(TR), UP0121H-E(TR), UP0151H-E(TR), UP0181H-E(TR), UP0241H-E(TR) – 26 –...
Page 27: Floor Standing Concealed Type
2-5. Floor standing concealed type MML-UP0071BH-E(TR), UP0091BH-E(TR), UP0121BH-E(TR) – 27 –...
Page 28 MML-UP0151BH-E(TR), UP0181BH-E(TR), UP0241BH-E(TR) – 28 –...
Page 29: Floor Standing Type
2-6. Floor standing type MMF-UP0151H-E(TR), UP0181H-E(TR), UP0241H-E(TR), UP0271H-E(TR) – 29 –...
Page 30 MMF-UP0361H-E(TR), UP0481H-E(TR), UP0561H-E(TR) – 30 –...
Page 31: Wiring Diagrams
3. WIRING DIAGRAMS 3-1. Compact 4-way cassette type MMU- UP0051MH-E(TR), UP0071MH-E(TR), UP0091MH-E(TR), UP0121MH-E(TR), UP0151MH-E(TR), UP0181MH-E(TR) – 31 –...
Page 32: 2-Way Cassette Type
3-2. 2-way cassette type MMU- UP0071WH-E(TR), UP0091WH-E(TR), UP0121WH-E(TR), UP0151WH-E(TR), UP0181WH-E(TR), UP0241WH-E(TR), UP0271WH-E(TR), UP0301WH-E(TR), UP0361WH-E(TR), UP0481WH-C, UP0561WH-E(TR) – 32 –...
Page 33: 1-Way Cassette (Sh) Type
3-3. 1-way cassette (SH) type MMU-UP0151SH-E(TR), UP0181SH-E(TR), UP0241SH-E(TR) – 33 –...
Page 34: Floor Standing Cabinet Type
3-4. Floor standing cabinet type MML-UP0071H-E(TR), UP0091H-E(TR), UP0121H-E(TR), UP0151H-E(TR), UP0181H-E(TR), UP0241H-E(TR) – 34 –...
Page 35: Floor Standing Concealed Type
3-5. Floor standing concealed type MML- UP0071BH-E(TR), UP0091BH-E(TR), UP0121BH-E(TR), UP0151BH-E(TR), UP0181BH-E(TR), UP0241BH-E(TR) – 35 –...
Page 36: Floor Standing Type
3-6. Floor standing type MMF-UP0151H-E(TR), UP0181H-E(TR), UP0241H-E(TR), UP0271H-E(TR), UP0361H-E(TR), UP0481H-E(TR), UP0561H-E(TR) – 36 –...
Page 37: Parts Rating
4. PARTS RATING Indoor unit Compact 4-way cassette type Model MMU-UP***MH-E(TR) Fan motor ICF-340D60-1 Drain pump motor MDP-1401 Float switch FS-0218-102 Pulse motor valve PAM-B25YGTF-1 PAM-B40YGTF-1 P.C. board MCC-1643 TA sensor Lead wire length: 818 mm Vinyl tube TC1 sensor Dia.4 size lead wire length: 400 mm Vinyl tube TC2 sensor Dia.6 size lead wire length: 500 mm Vinyl tube (Black)
Page 38: Refrigerant Cycle Diagram
5. REFRIGERANT CYCLE DIAGRAM Indoor unit Liquid side Gas side Cooling Heating 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 39: Control Outline
6. CONTROL OUTLINE Control Specifications Item Outline of specifications Remarks When power 1) Distinction of outdoor unit supply is reset When the power supply is reset, the outdoors are distinguished and the control is selected according to the distinguished result. 2) Setting of indoor fan speed and existence of air direction adjustment Based on EEPROM data, select setting of the indoor fan...
Page 40 Item Outline of specifications Remarks Room temp. 2) By setting the CODE No. 06, the setup temperature in Return air temperature control heating operation can be compensated. shift of heating operation (Continued) Setup data Setup temp. compensation +0˚C +2˚C +4˚C +6˚C Except while sensor of the remote controller is...
Page 41 Item Outline of specifications Remarks Fan speed 1) By the command from remote control, fan speed is HH > H+ > H > L+ > L > UL selection changed. ((HH), (H+), (H), (L+), (L) or [AUTO]) 2) When the fan speed mode [AUTO] is selected, the fan Depends on fan speed mode speed varies by the difference between TA and Ts.
Page 42 Item Outline of specifications Remarks Fan speed selection Setting of height ceiling mode at CODE No. [5D] or (Continued): at SW501 on P.C. board. Compact 4-way (only UP015), 2-way, 1-way (SH) (Fan speed selection of UP012 or less and UP018 for Compact 4-way are only Standard.) Factory default Type 1 Type 3...
Page 43 Item Outline of specifications Remarks Prevention of cold 1. In heating operation, the lowest temperature between TCJ: Temperature of indoor TC1 sensor and the highest temperature between air discharge heat exchanger sensor TC2 and TCJ sensor is set as the upper bound of the •...
Page 44 Item Outline of specifications Remarks Refrigerant (Oil) Indoor units during stop/thermostat OFF or FAN Control is performed per two recovery control in operation perform following controls when a refrigerant hours or when the outdoor unit cooling operation (compressor oil) recovery signal is received from determines its need.(It varies outdoor unit at the cooling operation, depending on the indoor units...
Page 45 Item Outline of specifications Remarks Alarm output The alarm output from the indoor P.C. board is output in each Connector CN61 setup indoor unit during group control, but it can be set so as to be (Refer to 8-3-1,8-3-2. output in the header unit and follower units. Optional connector Following the table below, register the setting data in DN Code "79".
Page 46 Item Outline of specifications Remarks Subject model : Louver control 1) Louver position setup Compact 4-way • When the louver position is changed, the position moves 2-way cassette necessarily to downward discharge position once to return to 1-way cassette (SH) the set position.
Page 47 Item Outline of specifications Remarks Louver control <<Individual air direction setup>> Subject model : (Continued) UNIT LOUVER Compact 4-way • Pushing Louver select button enables every discharge port to set up the air direction. The louver numbers that are displayed on the display part Setup from the remote correspond to those in the following figure.
Page 48 Item Outline of specifications Remarks Louver control <<Selection of Swing mode>> Subject model : Compact 4-way (Continued) • For the Swing mode, the following three types of modes are selectable and settable by keeping Swing/Direction SWING/FIX button pushed for 4 seconds or more on the remote controller.
Page 49 Item Outline of specifications Remarks Louver control • If there is the locked louver in the unit, [ ] goes on the For the setting operation, remote controller screen. refer to [How to set louver (Continued) lock] of Installation Manual. •...
Page 50: Communication Type, Model Names And The Maximum Number Of Connectable Units
7. COMMUNICATION TYPE, MODEL NAMES AND THE MAXIMUM NUMBER OF CONNECTABLE UNITS 7-1. This air conditioning (U series) has new communication specifications, and TU2C- Link (U series) and TCC-Link (other than U series) differ in a communication type. For the communication type and the model names such as each unit or remote controllers, refer to the following table.
Page 51: Applied Control And Functions (Including Circuit Configuration)
8. APPLIED CONTROL AND FUNCTIONS (INCLUDING CIRCUIT CONFIGURATION) 8-1. Indoor controller block diagram (MCC-1643) 8-1-1. In case of connection of wired remote controller Wired remote controller (Up to 2 units) Schedule timer Display LCD Function setup Display driver Key switch Display LED Function setup DC5V...
Page 52 8-1-2. 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 53: In Case Of Connection Of Wireless Remote Controller (Compact 4-Way Cassette Type)
8-1-2. In case of connection of wireless remote controller (Compact 4-way cassette type) Indoor unit #1 (Header) (Follower) (Follower) Indoor control P.C. board (MCC-1643) DC20V Remote controller communication circuit EEPROM DC5V TA sensor DC12V Same Same TC1 sensor as left as left TC2 sensor Driver...
Page 54: Connection Of Both Wired Remote Controller And Wireless Remote Controller
8-1-3. Connection of both wired remote controller and wireless remote controller Wired 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 battery...
Page 55: Indoor Controller Block Diagram (Mcc-1744)
8-2. Indoor controller block diagram (MCC-1744) 8-2-1. In case of connection of wired remote controller Wired header remote controller (Up to 2 units) Schedule timer (weekly timer mode) Function setup Display Display LCD driver Key switch Function setup DC5V DC5V Power Display LED Key switch...
Page 56: In Case Of Connection Of Wireless Remote Controller
8-2-2. In case of connection of wireless remote controller Indoor unit #1 (Header) (Follower) (Follower) Indoor control P.C. board Wireless remote (MCC-1744) controller receiver DC20V Receiving Remote controller communication circuit P.C. board Remote controller DC5V EEPROM communication circuit Emergent TA sensor Power operation DC12V...
Page 57: Connection Of Both Wired Remote Controller And Wireless Remote Controller
8-2-3. Connection of both wired remote controller and wireless remote controller Wired header remote controller (Up to 2 units) Schedule timer (weekly timer mode) Display LCD Function setup Display driver Key switch Function setup DC5V DC5V Power Display LED Key switch circuit Remote controller Power...
Page 58: Indoor Print Circuit Board
8-3. Indoor Print Circuit Board 8-3-1. MCC-1643 • Compact 4-way cassette type • 2-way cassette type • 1-way cassette type (SH) • Floor standing type – 58 –...
Page 59 – 59 –...
Page 60: Mcc-1744
8-3-2. MCC-1744 • Floor standing cabinet type • Floor standing concealed type – 60 –...
Page 61 – 61 –...
Page 62: Test Run Of Indoor Unit
8-4. Test run of indoor unit Cooling/Heating test run check The test run for cooling/heating can be performed 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.
Page 63 <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 64 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 65 Check function for operation of indoor unit (Functions at indoor unit side) This function is provided to check the operation of the indoor unit individually without connecting to the remote controller or the outdoor unit. This function can be used regardless of the ON/OFF operation. However, it is recommend to avoid using this function for along time, otherwise the trouble of the equipment may occurred.
Page 66: 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.) Procedure Be sure to stop the air conditioner before making settings <RBC-AMT > Push the buttons simultaneously and hold for at CODE No.
Page 67 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 68 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 69 Item Description 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 70 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 71 [5d] External static pressure & High-ceiling adjustment <2-way Cassette, 1-way Cassette SH Type> High-ceiling adjustment Set data 0000 Standard (Factory default) 0001 High ceiling 1 0003 High ceiling 3 <Compact 4-way Cassette> Set data High-ceiling adjustment 0000 Standard (Factory default) 0001 High ceiling 1 (UP015 only) 0003...
Page 72: Applied Control Of Indoor Unit
8-6. 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 73 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 74 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 75 [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 76 [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 77 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 78 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 79 <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 80 <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 81 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 82 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 83 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 84 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 85 <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 86 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 87 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 88 <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 89 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 90 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 91: 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 92: Troubleshooting Method
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 93 (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 94 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 95 Check code Display of receiving unit Outdoor 7-segment display Central Indicator light block control or main Typical problem site Description of problem 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 96 Check code Display of receiving unit Outdoor 7-segment display Central Indicator light block Typical problem site Description of problem control or main remote Operation Timer Ready Sub-code controller Flash 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 97 (Check code detected by Inverter of Compressor featuring in outdoor unit - typical examples) Check code Display of receiving unit Outdoor 7-segment display Central Indicator light block Typical problem site Description of proplem control or main remote Operation Timer Ready Sub-code controller Flash...
Page 98: Troubleshooting Based On Information Displayed On Remote Controller
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 99 <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 100 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 101 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 102 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 103: Check Codes Displayed On Remote Controller And Smms Series Outdoor Unit (7-Segment Display On I/F Board) And Locations To Be Checked
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 104 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 105 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 106 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 check outdoor unit No. follower unit receives trouble code from displayed on outdoor code...
Page 107 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 108 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 109 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 110 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 111 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 112 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 113 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 114 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 115 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 116 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 117 Points to Note When Servicing Compressor (1) When checking the outputs of inverters, remove the wiring from all the compressors. How to Check Inverter Output (1) Turn off the power supply. (2) Remove compressor leads from the compressor P.C. board. (The model with two compressor should remove the wiring for two sets (6 leads).
Page 118: Diagnostic Procedure For Each Check Code (Indoor Unit)
9-5. Diagnostic Procedure for Each Check Code (Indoor Unit) – 118 –...
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Page 126: Sensor Characteristics
9-6. 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 127: Maintenance List
Winding resistance of PMV (Pulse Motor Vale) coil Measure position Resistance value White - Red (COM) Yellow - Red (COM) 180 to 220 Ω Orange - Red (COM) Blue - Red (COM) at 20ºC 9-7. Maintenance 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.
Page 128: Board Exchange Procedures
10. P.C. BOARD EXCHANGE PROCEDURES Indoor unit 10-1. Replacement of indoor P.C. boards <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 129 [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. <RBC-ASCU11- > (header unit No. when the group operation control) Step2 Step3 Step1 Step1 Push and hold the [menu + ] buttons at same time for more than 10 seconds.
Page 130 CODE No. required at least Contents 1. The Code No. for the Indoor unit type and Indoor unit capacity are required to set the rotation number setting of the fan. Type 2. If the system/indoor/group addresses are different from those Indoor unit capacity before replacement, the auto-address setting mode starts and System address...
Page 131 [2] P.C. Board for indoor unit servicing replacement procedures (e.g. MCC-1643) Step1 Replace the P.C. board to the P.C. board for indoor unit servicing. At this time, perform the same setting of the jumper wire (J01, J08, J09) setting (cut), switch SW501, (short-circuit) connector CN34 as the setting of the P.C.
Page 132 [3] Writing the setting data to EEPROM The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values. <RBC-ASCU11- > Step 1 Push and hold the [menu + ] buttons at same time for more than 10 seconds. * When the group operation control is performed, the unit No.
Page 133 <RBC-AMT > Step 1 Push buttons on the remote controller simultaneously for more than 4 seconds. * In the group control operation, the unit No. displayed for the first time is the header unit No.. At this time, the CODE No. (DN) shows “ ”.
Page 134 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 Heating suction temperature shift Depending on Type Cooling only 0000: Heat pump Type...
Page 135: Detachments
11. DETACHMENTS 11-1. Compact 4-way cassette MMU-UP 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. No.
Page 136 No. Part name Procedure Remarks 1. Detachment Adjust corner cap 1) Remove the air intake grille. (Refer to 1 of 2) Loosen the fixing screws on the adjust corner cap. Adjust corner (M 4 × 12, 4 pcs.) Screw 3) Slide the adjust corner cap to outside to remove it. 2.
Page 137 No. Part name Procedure Remarks 1. Detachment Control Clamp P.C. board 1) Remove the electric parts cover. (Refer to 1 of 2) Remove connectors which are connected from the control P.C. board to the other parts and then remove wiring from the clamp. NOTE Unlock the lock of the housing part and then remove the connector.
Page 138 No. Part name Procedure Remarks 1. Detachment Turbo fan Nut cap Fixing screw 1) Remove the air intake grille. (Refer to 1 of of bell mouth 2) Loosen the fix screws (2 positions) of the bell mouth, rotate the bell mouth, and then take off it. (M 4 ×...
Page 139 No. Part name Procedure Remarks 1. Detachment Drain pan 1) Remove the ceiling panel and the electrical parts covers. Fixing screws (Refer to items -1 and -1.) 2) Remove the wiring cover. (Fixing screw M 4 × 8, 3pcs.) 3) Remove the wiring fixing plate. Wiring cover (Fixing screw M 4 ×...
Page 140 No. Part name Procedure Remarks 1. Detachment Drain pump Fixing screw 1) Remove the drain pan. (Refer to -1.) 2) Remove the drain pump connector (CN504: 2P, White) connected to the control P.C. board and remove the lead wires from the clamp. 3) Remove the fixing screws to remove the drain pump.
Page 141 No. Part name Procedure Remarks 1. Detachment Fan motor Shoulder screws (Black) 1) Remove the turbo fan, electric parts cover, wiring cover and wiring fixing plate. (Refer to -1-2, -1-3.) 2) Remove the fan motor connector (CN210, White, 7P) Motor lead wire cover connected to the control P.C.
Page 142 No. Part name Procedure Remarks 1. Detachment 1) Remove the drain pan. (Refer to -1.) 2) Pull out the sensor to be exchanged from the sensor Sensor holder. 3) Remove the connector connected to the control P.C. board, and take off wires from the clamp. (Refer to 2.
Page 143 No. Part name Procedure Remarks 1. Detachment Heat exchanger 1) Recover refrigerant gas. 2) Remove the refrigerant pipe at indoor unit side. 3) Remove the drain pan. (Refer -1.) 4) Disconnect the heat exchanger sensor (TC1, TC2, TCJ), PMV lead wires connectors from the control P.C. board, and then remove their lead wires from the clamp.
Page 144: 2-Way Cassette
11-2. 2-way cassette MMU-UP 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. Ceiling Panel (RBC-UW283PG(W)-E, UW803PG(W)-E, UW1403PG(W)-E)) For detachment, they are expediently expressed as follows: UP009: MMU-UP0071WH to UP0151WH (Ceiling panel: RBC-UW283PG(W)-E)
Page 145 No. Part name Procedure Remarks 2. Attachment Center panel 1) Insert hook of the center panel into shaft of the adjust (Continued) cover. (2 positions at left and right sides) Insert hook attached with a panel stopper. Note Be sure to attach a hook with panel stopper at first. If Adjust cover attaching a hook without panel stopper at first, the center Wire fixing part...
Page 146 No. Part name Procedure Remarks 1. Detachment Electric Electric parts box Electric parts box Electric parts box parts 1) Perform work Detachment 1 of 2) Take off screws. (M 4 × 8, 2 pcs.) Screws Screws Screws 3) When sliding the box to the arrow direction (1) in the Electric parts box Electric parts box Electric parts box...
Page 147 No. Part name Procedure Remarks 1. Detachment Control Cord clamp Binding band P.C. board 1) Perform work from 1) to 5) Detachment 1 of 2) Unlock the locks of the card edge spacers (at 4 positions) in the electric parts box and then remove the control P.C.
Page 148 No. Part name Procedure Remarks 1. Detachment (In cases of UP027) Fan motor In case of UP027 Claw 1) Perform work Detachment 1 of Fan case Claw 2) In the works of 1 of , perform works to open the electric parts box cover and remove connectors of the fan motor wiring.
Page 149 No. Part name Procedure Remarks 1. Detachment (In cases of UP048) Fan motor In case of UP048 Claw 1) Perform work Detachment 1 of Fan case Claw Bearing 2) In the works of 1 of , perform works to open the electric parts box cover and remove connectors of the fan motor wiring.
Page 150 No. Part name Procedure Remarks 1. Detachment Frame cover 1) Perform work of Detachment 1 of Adjust cover 2) Take off screw (M 4 × 10, 1 pc.) and then remove the frame cover while pushing the claw to inner side. 3) Take off screws which fix the adjust cover.
Page 151 No. Part name Procedure Remarks 1. Detachment Ceiling panel 1) Perform work Detachment 1 of Tentative hook Tentative hook Tentative hook 2) In the works of 1 Detachment of , perform works to open the electric parts box cover and remove connector of the louver motor wiring.
Page 152 No. Part name Procedure Remarks 1. Detachment (In case of UP009) Drain pan Fan motor wire 1) Perform work Detachment 1 of In case of UP009 Drain pan Perform work Detachment 1 of Screw Screw Screw 2) Take off the drain cap and then extract accumulated drain water in the drain pan.
Page 153 No. Part name Procedure Remarks 1. Detachment (In cases of UP027/UP048) Drain pan In cases of UP027/UP048 (Continued) 1) Perform work Detachment 1 of Perform work Detachment 1 of Partition board Partition board Partition board 2) Take off the drain cap and then extract accumulated drain water in the drain pan.
Page 154 No. Part name Procedure Remarks 1. Detachment Drain pump 1) Perform work Detachment 1 of 2) Pick the hose band and shift it from the pump A hose band is moved A hose band is moved A hose band is moved connecting part and then remove the drain hose.
Page 155 No. Part name Procedure Remarks 1. Detachment PMV coil 1) Perform work Detachment 1 of 8 . 2) Remove the relay connector of PMV coil. Relay connector: AP048 type only Relay connector: AP048 type only Relay connector: UP048 type only (Only relay connector of UP048 type is connected in (Inside of vinyl tube (Black)) (Inside of vinyl tube (Black))
Page 156 No. Part name Procedure Remarks 1. Detachment (In case of UP009) Heat In case of UP009 exchanger 1) Recover the refrigerant gas and then remove the End board refrigerant pipe of the indoor unit. 2) Perform work of Detachment 1 of 3) Pull out wires of TC1 sensor, TC2 sensor and TCJ sensor from the holder.
Page 157: 1-Way Cassette (Sh)
11-3. 1-way cassette (SH) MMU-UP 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. Ceiling panel: RBC-US21PGE No.
Page 158 No. Part name Procedure Remarks 1. Detachment Adjust cap 1) Perform work of procedure 1. of 2) Take off fixing screws. (M4 × 12, 2 pcs) 3) Hold handle of the cap, and then slide it toward suction side to remove cap. 2.
Page 159 No. Part name Procedure Remarks 1. Detachment Electrical control box 1) Perform work of procedure 1. of Fixing screw 2) Take off the fixing screws. (M 4 × 8, 4 pcs) 3) Remove the cord clamp on the ceiling surface, pull the electrical control box downward, and then hook the hooking claw at the rear side to square hole for temporary hanging of the panel.
Page 160 No. Part name Procedure Remarks 1. Detachment Control P.C. board 1) Perform work of procedure 1. of 2) Remove connectors connected from the control P.C. board to other parts. NOTE Be sure to unlock the lock of the housing before removing the connector.
Page 161 No. Part name Procedure Remarks 1. Detachment Fan motor Remove the banding band CN210 : Fan motor 1) Perform work of procedure 1. of 2) Remove the banding band and clamps of the lead wires which are connected to the following connectors of the control P.C.
Page 162 No. Part name Procedure Remarks 1. Detachment Drain pan Fixing screw 1) Perform work of procedure 1. of 2) Remove the drain cap, and then drain the drain water accumulated in the drain pan. NOTE When removing the drain cap, be sure to catch drain water using bucket, etc.
Page 163 No. Part name Procedure Remarks 1. Detachment Drain CN504 : Drain pump pump 1) Perform work of procedure 1. of 2) Remove clamps of the lead wires connected to the following connectors of the control P.C. board. NOTE Be sure to unlock the lock of the housing before removing the connector.
Page 164 No. Part name Procedure Remarks 1. Detachment PMV coil Relay connector (In vinyl tube (Black)) Banding band 1) Perform work of procedure 1. of 2) Remove the relay connector of PMV coil. (As the relay connectors are connected in the vinyl tube, cut off the banding band fixing the both ends of the tube and shift the tube to remove relay connector.) 3) A little PMV coil is rotated, pressing down so that a...
Page 165: Floor Standing Cabinet
11-4. Floor standing cabinet MML-UP 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. Spare parts Work procedure Remarks...
Page 166 Spare parts Work procedure Remarks Refrigerant 1. Detachment cycle (1) Recover the refrigerant gas. assembly (2) Take off the connecting pipe. (Liquid pipe and gas pipe) (3) Following to works 1 of , and (1) to (10), detach the parts. (4) Take off the reinforcement plate.
Page 167 Spare parts Work procedure Remarks Horizontal 1. Detachment louver (1) Following step 1 of and those in (3) to (5), PMV motor detach the parts. (2) Remove the PMV connector : CN082 (6P Blue) from the P.C.board. (3) Turn the PMV coil slightly clockwise while holding the PMV body so that the body does not turn, and remove the PMV coil in the arrow direction.
Page 168 Spare parts Work procedure Remarks M4 screw Fan assembly 1. Detachment (1) Following step 1 of , (1) to (3), (6 )and (7), detach the parts. (2) Take off the nut which fixes the fan assembly. (M6 nut: 1 position) (3) Draw out the fan assembly toward you.
Page 169 Spare parts Work procedure Remarks Capacitor 1. Detachment (1) Following step 1 of and (1) to (2), detach the parts. (2) Remove the capacitor. (M4 screw: 1 position) 2. Attachment Following step 1 of , and (1) to (3), attach the parts as original in the reverse procedure.
Page 170: Floor Standing Concealed
11-5. Floor standing concealed MML-UP 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. No.
Page 171 No. Part name Procedure Remarks 1. Detachment Control CN030 P.C.board (Red) (1) Remove the electric parts cover. (2) Remove following connectors from the control P.C. board. * Remove the connectors by unlocking the locks of the housing part. CN030: Short-circuit pin (3P: Red) CN041: Terminal block for controller (2P: Blue) CN040: Terminal block for communication wire between indoor and outdoor unit (2P:Blue)
Page 172 No. Part name Procedure Remarks 1. Detachment Refrigerating cycle (1) Recover the refrigerating gas. assembly (2) Remove the connecting pipes. (Liquid pipe and gas pipe) (3) Following to works in 1 of and (1) to (5), detach the parts. (4) Remove the filter. (No screw fixing) (5) Remove the wire guard.
Page 173 No. Part name Procedure Remarks 1. Detachment PMV coil Relay lead wire connector (1) Following to works of 1 of and (1) to (9), detach for PMV coil Binding band the parts (2) Cut the binding band to remove the tube on the relay connector for the PMV lead wire.
Page 174 No. Part name Procedure Remarks 1. Detachment Clamp assembly (1) Following to the works in 1 of of (1) to (3) detach the parts. (2) Remove CN083 connector from the control P.C. board. (3) Remove the fan motor lead from the clamp. (4) Slide the glass tube fixing the fan motor lead and remove the connector.
Page 175 No. Part name Procedure Remarks [UP007 to UP012] Fan motor 1. Detachment (1) Following to works of 1 of and (1) to (5), detach the Fan assembly parts. (2) Remove the wire clamps which fixes the fan motor Wire lead. (Two positions) Wire clamp Fan motor...
Page 176 No. Part name Procedure Remarks 2. Attachment Fan motor Fan motor (Continued) reinforcement plate (1) Attach the fan motor, motor band, fan motor reinforcement plate, and fan case as original. Fan motor * When attaching the fan motor, be sure that the fan motor does not hit the motor base reinforcement Lead wire Motor band...
Page 177 No. Part name Procedure Remarks Fan motor [UP015 to UP024] Wire clamp Fan motor lead (Continued) 1. Detachment (1) Following to works of 1 of and (1) to (5), detach the Fan assembly parts. (2) Remove the wire clamps which fixes the fan motor lead.
Page 178 No. Part name Procedure Remarks Capacitor [UP007 to UP012] 1. Detachment (1) Following to ‚1 of , and (1) to (2), detach the parts. Capacitor (2) Remove the capacitor cover and remove the capacitor cover lead from the capacitor. (M4 screw: 2 pieces) (3) Remove the capacitor.
Page 179 No. Part name Procedure Remarks Drain pan 1. Detachment (1) Remove the front panel (lower) and electric parts assembly. Refer to the works of 1 of and (6), and the work of Screw Screw Screw 1 of Drain pan Drain pan Drain pan (2) Remove the screws fixing the drain pan (3) Slide the drain pan in the direction of piping side to...
Page 180: Floor Standing
11-6. Floor standing MMF-UP 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 181 Part name Procedure Remarks Electric parts 1. Detachment 1) Carry out the work of item Screw 1 2) Remove the Screw 1 (two screws) from the Screw 1 drip-proof cover on the bottom plate. * This work is unnecessary for Models Drip-proof Screw 2 UP036 to UP056.
Page 182 Part name Procedure Remarks Access panel 1. Detachment 1) Carry out the work of item 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 183 Part name Procedure Remarks Fan, 1. Detachment Fan motor 1) Carry out the works of items -1 and 2) Cut off the banding band that fixes the fan <UP015 to UP027> motor lead wire to remove the fan motor Screw 1 Screw 1 Screw 1 connector in the electric parts box.
Page 184 Part name Procedure Remarks Heat 1. Detachment exchanger 1) Carry out the works of items -1 and UP015 to UP027 <UP015 to UP027> 2) Remove the tube of the relay part of PMV, and then remove the relay connector. To PMV coil Upper shield Screw 2 Screw 2...
Page 185 No. Part name Procedure Remarks PMV coil 1. Detachment View A (1) Carry out the works items (2) Cut the binding bands (2 places) to remove the tube of the relay part of PMV. (3) Remove the PMV lead from the relay connector Binding band Binding band Binding band...
Page 186 No. Part name Procedure Remarks Horizontal 1. Detachment louver (1) Remove the intake grille and the access panel. Shield plate (Carry out the works items -1 and -1.) assembly (2) Remove three screws that fixes the shield plate assembly to remove the shield plate assembly. (3) Remove two screws that fixes the discharge grille assembly.
Page 187: Exploded Views And Parts List
12. EXPLODED VIEWS AND PARTS LIST 12-1. Compact 4-way cassette type MMU- UP0051MH-E(TR), UP0071MH-E(TR), UP0091MH-E(TR), UP0121MH-E(TR), UP0151MH-E(TR), UP0181MH-E(TR) – 187 –...
Page 188 Q'ty/Set MMU-UP Location Part No. Description 0051MH 0071MH 0091MH 0121MH 0151MH 0181MH -E (TR) -E (TR) -E (TR) -E (TR) -E (TR) -E (TR) 43047688 NUT, FLARE, 12.7 43049776 SOCKET, 9.52 43079249 BAND, HOSE 43104248 PLATE ASSY, PARTITION 43107215 HOLDER, SENSOR 43119542 COVER, PIPE 43120277...
Page 189 Electric Parts Connector:Black (CN101) 407 P.C. BOARD ASSY Connector:Red Connector:Yellow Connector:Brown (CN102) (CN104) (CN100) Q'ty/Set Location Part No. Description MMU-UP0∗∗1MH-E(TR) 43150394 SENSOR 43150395 SENSOR 43150417 SENSOR, TEMP 43160694 TERMINAL, 4P 43160626 TERMINAL BLOCK, 2P, 20A 4316V727 P.C. BOARD ASSY, MCC-1643 43459017 P.C.
Page 190 Ceiling panel RBC-UM21PG (W)-E TOSHIBA" " Mark Location Part No. Description Q’ty/Set 43109441 GRILLE, AIR INLET 43180361 AIR FILTER 4342D001 MOTOR, LOUVER, MSBPC20F04 43107296 OUTLET, AIR FORM 43107297 OUTLET, AIR FORM 43122166 LOUVER ASSY 4310A142 COVER, PANEL ASSY 4310A143 COVER, PANEL ASSY...
Page 191: 2-Way Cassette Type
12-2. 2-way cassette type MMU-UP0071WH-E(TR), UP0091WH-E(TR), UP0121WH-E(TR), UP0151WH-E(TR) – 191 –...
Page 192 Q'ty/Set MMU-UP Location Part No. Description 0071WH 0091WH 0121WH 0151WH -E (TR) -E (TR) -E (TR) -E (TR) 43047688 NUT, FLARE, 12.7 43049776 SOCKET, 9.52 43079249 BAND, HOSE 43107215 HOLDER, SENSOR 43120225 FAN, ASSY TURBO 43122099 PLATE, WIND 43122100 BELL MOUTH 4312C192 MOTOR, FAN, ICF-340D60-1 43135022...
Page 193 MMU-UP0181WH-E(TR), UP0241WH-E(TR), UP0271WH-E(TR), UP0301WH-E(TR) – 193 –...
Page 194 Q'ty/Set MMU-UP Location Part No. Description 0181WH 0241WH 0271WH 0301WH -E (TR) -E (TR) -E (TR) -E (TR) 43047688 NUT, FLARE, 12.7 43049776 SOCKET, 9.52 43079249 BAND, HOSE 43107215 HOLDER, SENSOR 43120239 FAN, MULTI BLADE 43122097 CASE, FAN 43122098 CASE, FAN 43122099 PLATE, WIND 4312C183...
Page 195 MMU-UP0361WH-E(TR), UP0481WH-E(TR), UP0561WH-E(TR) – 195 –...
Page 196 Q'ty/Set MMU-UP Location Part No. Description 0361WH-E (TR) 0481WH-E (TR) 0561WH-E (TR) 43049776 SOCKET, 9.52 43079249 BAND, HOSE 43107215 HOLDER, SENSOR 43119479 43120239 FAN, MULTI BLADE 43122097 CASE, FAN 43122098 CASE, FAN 43122099 PLATE, WIND 43125162 COUPLING 43125199 BEARING ASSY, MOLD 43125203 SHAFT 4312C189...
Page 197 Electric Parts Connector:Yellow (CN104) Connector:Black (CN101) Connector:Red Connector:Brown (CN102) (CN100) Q'ty/Set Location Part No. Description MMU-UP0∗∗1WH-E(TR) 43150422 SENSOR, TC 43150342 SENSOR (DOUBLE-COATED CABLES) 43150414 SENSOR, TEMP 43150421 SENSOR, TA 43160626 TERMINAL BLOCK, 2P, 20A 43160694 TERMINAL, 4P 4316V727 P.C. BOARD ASSY, MCC-1643 43459017 P.C.
Page 198 Ceiling panel RBC-UW283PG (W)-E, RBC-UW803PG (W)-E, RBC-UW1403PG (W)-E 218, 220 225, 227, 229 218, 219 224, 226, 228 221, 222, 223 201, 202, 203 – 198 –...
Page 199 Panel, 1726L 43407134 Hook, Inlet 43407135 Hook, Inlet 43403007 Cover, Spacer 43403008 Cover, Spacer 43403009 Cover, Spacer 43408036 Mark, TOSHIBA 43407136 Fix, Louver, Middle 43407137 Fix, Louver, Middle 43460115 Lead Ass'y, Motor 43409193 Filter Ass'y 43409194 Filter Ass'y 43407138 Spacer, Louver, Middle...
Page 200: 1-Way Cassette Type (Sh)
12-3. 1-way Cassette Type (SH) MMU-UP0151SH-E(TR), UP0181SH-E(TR), UP0241SH-E(TR) – 200 –...
Page 201 Q'ty/Set MMU-UP Location Part No. Description 0151SH-E (TR) 0181SH-E (TR) 0241SH-E (TR) 43047688 NUT, FLARE, 12.7 43049776 SOCKET, 9.52 43079249 BAND, HOSE 43107215 HOLDER, SENSOR 43119481 NUT, PLATE 43120257 FAN, MULTI BLADE 43122084 CASE, FAN, LOWER 43122085 CASE, FAN, UPPER 4312C183 MOTOR, FAN, ICF-340WD94-9 43135021...
Page 202 Electric Parts Connector:Yellow(CN104) Connector:Black Connector:Red Connector:Brown (CN101) (CN102) (CN100) Q'ty/Set Location Part No. Description MMU-UP0∗∗1SH-E(TR) 43150361 SENSOR, TC 43150362 SENSOR, TC 43150421 SENSOR, TA 43150414 SENSOR, TEMP 43160694 TERMINAL, 4P 43160626 TERMINAL BLOCK, 2P 4316V727 P.C. BOARD ASSY, MCC-1643 43459017 P.C.
Page 203 43401027 PANEL ASSY 43497012 SCREW 43460112 LEAD ASSY, LOUVER, MOTOR 43107254 HINGE, GRILLE INLET 43107255 HOOK, GRILLE INLET 43408033 MARK, TOSHIBA 43419015 SUPPORTER, OUTLET 43419016 SUPPORTER, SHAFT 43419017 SUPPORTER, MOTOR 43419018 PANEL, OUTLET 43419019 SCREW, CAP ASSY – 203 –...
Page 204: Floor Standing Cabinet Type
12-4. Floor Standing Cabinet Type MML- UP0071H-E(TR), UP0091H-E(TR), UP0121H-E(TR), UP0151H-E(TR), UP0181H-E(TR), UP0241H-E(TR) – 204 –...
Page 205 Q'ty/Set MML-UP Location Part No. Description 0071H 0091H 0121H- 0151H 0181H 0241H -E (TR) -E (TR) E (TR) -E (TR) -E (TR) -E (TR) 43723020 CASE, FAN, LEFT CASE, FAN, RIGHT 43723019 43126119 CASE, FAN, RIGHT 43109394 GRILL,INLET,WHITE 43155190 CAPACITOR, 400V 1.8MF 43155171 CAPACITOR, 450V 2.0MF 43155195...
Page 206 Electric Parts Connector:Black(CN101) Connector:Red(CN102) Connector:Brown(CN100) Connector:Yellow(CN104) Q'ty/Set Location Part No. Description MML-UP0∗∗1H-E(TR) 43150424 SENSOR, TC 43150425 SENSOR, TC 4115A123 SENSOR,TA 43150414 SENSOR, TEMP 43158204 TRANSFORMER, TT-13 43160626 TERMINAL BLOCK, 2P, 20A 43160694 TERMINAL, 4P 4316V734 P.C. BOARD ASSY, MCC-1744 4316V345 P.C.
Page 207: Floor Standing Concealed Type
12-5. Floor Standing Concealed Type MML-UP0071BH-E(TR), UP0091BH-E(TR), UP0121BH-E(TR), UP0151BH-E(TR), UP0181BH-E(TR), UP0241BH-E(TR) – 207 –...
Page 208 Q'ty/Set MML-UP Location Part No. Description 0071BH 0091BH 0121BH 0151BH 0181BH 0241BH -E (TR) -E (TR) -E (TR) -E (TR) -E (TR) -E (TR) 43723020 CASE, FAN, LEFT 43126119 CASE, FAN, RIGHT 43155179 CAPACITOR, 1.5MFD,450V 43155171 CAPACITOR, 450V 2.0MF 43155191 CAPACITOR, 450V 1MF 4312C008 MOTOR, FAN, AF-200-70-4KR...
Page 209 Electric Parts Connector:Black(CN101) Connector:Red(CN102) Connector:Brown(CN100) Connector:Yellow(CN104) Q'ty/Set Location Part No. Description MML-UP0∗∗1BH-E(TR) 43150426 SENSOR, TC 43150427 SENSOR, TC 4115A123 SENSOR,TA 43150415 SENSOR, TEMP 43158204 TRANSFORMER, TT-13 43160626 TERMINAL BLOCK, 2P, 20A 43160694 TERMINAL, 4P 4316V734 P.C. BOARD ASSY, MCC-1744 4316V345 P.C.
Page 210: Floor Standing Type
12-6. Floor Standing Type MMF-UP0151H-E(TR), UP0181H-E(TR), UP0241H-E(TR), UP0271H-E(TR) – 210 –...
Page 211 Q'ty/Set MMF-UP Location Part No. Description 0151H 0181H 0241H 0271H -E (TR) -E (TR) -E (TR) -E (TR) 43109392 GRILLE, INLET 43100388 CASE ASSY 43F2C076 MOTOR, LOUVER 4312C133 MOTOR, FAN, ICF-340D62-1 4314N205 COIL, PMV, PAM-MD12TF-301 4314N209 BODY, PMV, PAM-B40YGTF-2 43120271 FAN, MULTI BLADE 43180238 AIR FILTER...
Page 212 MMF-UP0361H-E(TR), UP0481H-E(TR), UP0561H-E(TR) – 212 –...
Page 213 Q'ty/Set MMF-UP Location Part No. Description 0361H 0481H 0561H -E (TR) -E (TR) -E (TR) 43109392 GRILLE, INLET 43102650 CASE ASSY 43F2C076 MOTOR, LOUVER 4312C134 MOTOR, FAN, ICF-340WD109-1 4314N205 COIL, PMV, PAM-MD12TF-301 4314N203 BODY, PMV, PAM-B60YGTF-1 43120272 FAN, MULTI BLADE 43180238 AIR FILTER 43109455...
Page 214 Electric Parts Connector:Yellow (CN104) Connector:Black Connector:Red Connector:Brown (CN101) (CN102) (CN100) Q'ty/Set Location Part No. Description MMF-UP0∗∗1H-E(TR) 44258091 REACTOR, CH-49-Z-T 43150412 SENSOR, TC 43150362 SENSOR, TC 43150414 SENSOR, TEMP 43459017 PC BOARD ASSY, TCB-PCUC*E 43160626 TERMINAL BLOCK, 2P, 20A 4316V728 PC BOARD ASSY, MCC-1643 43150418 SENSOR, TA 43160694...
Page 215 Wireless remote controller kit RBC-AXU41U-E(TR) Location Part No. Description Q'ty/Set 43108039 COVER, INSULATOR ASSY 43408041 COVER, WIRELESS 43166041 REMOTE CONTROLLER, WIRELESS 43183036 HOLDER, REMOTE, CONTROLLER 43459022 P.C. BOARD ASSY 43460132 LEAD ASSY – 215 –...
Page 216 RBC-AXU31U-E(TR) Location Part No. Description Q'ty/Set 43166041 REMOTE CONTROLLER, WIRELESS 4316W013 PC BOARD ASSY 43183036 HOLDER, REMOTE, CONTROLLER 43108018 COVER, PANEL WRS – 216 –...
Page 217 RBC-AXU31UM-E(TR) Location Part No. Description Q’ty/Set 4316V616 P.C. BOARD ASSY, REMOTE RECIEVER 43162103 COVER, WRS 43108036 COVER, PANEL WRS 43160665 LEAD 43108041 COVER, WIRELESS 43166041 REMOTE CONTROLLER, WIRELESS 43183036 HOLDER, REMOTE, CONTROLLER – 217 –...
Page 218 RBC-AXU31UW-E(TR) Location Q'ty/Set Part No. Description 43166041 REMOTE CONTROLLER, WIRELESS 4316W014 P.C. BOARD ASSY 43183036 HOLDER, REMOTE, CONTROLLER 43108035 BASE, WIRELESS – 218 –...
Page 219 RBC-AXU31C-E(TR) Location Q'ty/Set Part No. Description 43166041 REMOTE CONTROLLER, WIRELESS 4316W014 P.C. BOARD ASSY 43183036 HOLDER, REMOTE, CONTROLLER 43108033 BASE ASSY – 219 –...
Page 220 RBC-AXU31-E(TR) Location Q'ty/Set Part No. Description 43166041 REMOTE CONTROLLER, WIRELESS 43183036 HOLDER, REMOTE, CONTROLLER 4316W015 RECIEVER, UNIT – 220 –...

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Toshiba MMU-UP0051MH-E(TR) Service Manual

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