Toshiba MMY-MUP0801FT8(J)P-E Service Manual
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Toshiba MMY-MUP0801FT8(J)P-E Service Manual

Toshiba MMY-MUP0801FT8(J)P-E Service Manual

Air conditioner (multi type)
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AIR CONDITIONER (MULTI TYPE)
SERVICE MANUAL
< Super Heat Recovery Multi System SHRM-u >
Outdoor unit
MMY-MUP0801FT8(J)P-E
MMY-MUP1001FT8(J)P-E
MMY-MUP1201FT8(J)P-E
MMY-MUP1401FT8(J)P-E
MMY-MUP1601FT8(J)P-E
MMY-MUP1801FT8(J)P-E
MMY-MUP2001FT8(J)P-E
MMY-MUP2201FT8(J)P-E
MMY-MUP2401FT8(J)P-E
MMY-MUP0801FT8P-TR
MMY-MUP1001FT8P-TR
MMY-MUP1201FT8P-TR
MMY-MUP1401FT8P-TR
MMY-MUP1601FT8P-TR
MMY-MUP1801FT8P-TR
MMY-MUP2001FT8P-TR
MMY-MUP2201FT8P-TR
MMY-MUP2401FT8P-TR
FILE NO. SVM-25037
March, 2025

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Summary of Contents for Toshiba MMY-MUP0801FT8(J)P-E

  • Page 1 FILE NO. SVM-25037 AIR CONDITIONER (MULTI TYPE) SERVICE MANUAL < Super Heat Recovery Multi System SHRM-u > Outdoor unit MMY-MUP0801FT8(J)P-E MMY-MUP1001FT8(J)P-E MMY-MUP1201FT8(J)P-E MMY-MUP1401FT8(J)P-E MMY-MUP1601FT8(J)P-E MMY-MUP1801FT8(J)P-E MMY-MUP2001FT8(J)P-E MMY-MUP2201FT8(J)P-E MMY-MUP2401FT8(J)P-E MMY-MUP0801FT8P-TR MMY-MUP1001FT8P-TR MMY-MUP1201FT8P-TR MMY-MUP1401FT8P-TR MMY-MUP1601FT8P-TR MMY-MUP1801FT8P-TR MMY-MUP2001FT8P-TR MMY-MUP2201FT8P-TR MMY-MUP2401FT8P-TR March, 2025...

  • Page 2: Table Of Contents

    CONTENTS SAFETY CAUTION ..................... REFRIGERANT (R410A).................... 1. WIRING DIAGRAMS ....................2. PARTS RATING ...................... 2- 1. Outdoor Unit (MMY-MUP***1FT8P*) ................. 2- 1-1. Winding resistance of outdoor unit main parts ............ 2- 2. Inverter Assembly ......................2- 3. Flow Selector unit (Multi-port , Single-port) ..............33 2- 4.
  • Page 3 7. TEST OPERATION ....................7- 1. Procedure and Summary of Test Operation ..............7- 2. Check Items before Test Operation (before powering-on) ........... 7- 3. Check at Main Power-on ....................7- 4. Address Setup ........................7- 4-1. Precautions ......................7- 4-2. Address Setup and Check Procedure ..............7- 4-3.
  • Page 4 9. BACKUP OPERATION (EMERGENCY OPERATION) .......... 9- 1. Note for Backup Operation ....................9- 2. Compressor Backup Operation Setting ................. 9- 3. Outdoor Unit Backup Operation Setting ................ 9-3-1. Follower outdoor unit backup operation setting (failure of follower outdoor unit) .......................... 9-3-2.
  • Page 5 This service manual provides relevant explanations about new outdoor unit (SHRM-u). Please refer to the following service manuals for each indoor units. Model name SVM File No. <4-Way Cassette Type> SVM-20095 MMU-UP***1HP-E (Made in Thailand model) <Compact 4-Way Cassette Type> SVM-23084 MMU-UP***1MHP-E (Made in Thailand model <1-Way Cassette Type>...

  • Page 6: Safety Caution

    SAFETY CAUTION Please read carefully through these instructions that contain important information which complies with the "Machinery" Directive (Directive 2006/42/EC), and ensure that you understand them. Generic Denomination: Air Conditioner Definition of Qualified Installer or Qualified Service Person The air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualified service person.
  • Page 7 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 8 :DUQLQJ LQGLFDWLRQV RQ WKH DLU FRQGLWLRQHU XQLW :DUQLQJ LQGLFDWLRQ 'HVFULSWLRQ :$51,1* :$51,1* (/(&75,&$/ 6+2&. +$=$5' (/(&75,&$/ 6+2&. +$=$5' 'LVFRQQHFW DOO UHPRWH  'LVFRQQHFW DOO UHPRWH HOHFWULF SRZHU VXSSOLHV EHIRUH VHUYLFLQJ  HOHFWULF SRZHU VXSSOLHV  EHIRUH VHUYLFLQJ :$51,1* :$51,1* 0RYLQJ SDUWV  0RYLQJ SDUWV  'R QRW RSHUDWH XQLW ZLWK JULOOH UHPRYHG   'R QRW RSHUDWH XQLW ZLWK JULOOH  6WRS WKH XQLW EHIRUH WKH VHUYLFLQJ  UHPRYHG  6WRS WKH XQLW EHIRUH WKH VHUYLFLQJ  &$87,21 &$87,21 +LJK WHPSHUDWXUH SDUWV  +LJK WHPSHUDWXUH SDUWV   <RX PLJKW JHW EXUQHG ZKHQ UHPRYLQJ WKLV SDQHO  <RX PLJKW JHW EXUQHG  ZKHQ UHPRYLQJ WKLV SDQHO  &$87,21 &$87,21 'R QRW WRXFK WKH DOXPLQLXP ¿QV RI WKH XQLW  'R QRW WRXFK WKH DOXPLQXP  'RLQJ VR PD\ UHVXOW LQ LQMXU\  ILQV RI WKH XQLW  'RLQJ VR PD\ UHVXOW LQ LQMXU\  &$87,21 &$87,21 %8567 +$=$5' %8567 +$=$5' 2SHQ WKH VHUYLFH YDOYHV EHIRUH WKH RSHUDWLRQ  RWKHUZLVH WKHUH PLJKW EH 2SHQ WKH VHUYLFH YDOYHV EHIRUH  WKH EXUVW ...

  • Page 9: Precautions For Safety

    PRECAUTIONS FOR SAFETY The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual. DANGER Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker for both the indoor and outdoor units to the OFF position. Otherwise, electric shocks may result.
  • Page 10 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 11 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 12 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 13 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 14: Declaration Of Conformity

    AMPHUR MUANGPATHUMTHANI, PATHUMTHANI 12000, THAILAND Carrier RLC Europe S.A.S TCF holder: Immeuble Le Cristalia 3 rue Joseph Monier 92500 Rueil-Malmaison FRANCE Hereby declares that the machinery described below: Generic Denomination: Air Conditioner MMY-MUP0801FT8(J)P-E MMY-MUP0801FT8P-TR Model / type: MMY-MUP1001FT8(J)P-E MMY-MUP1001FT8P-TR MMY-MUP1201FT8(J)P-E MMY-MUP1201FT8P-TR...
  • Page 15 AMPHUR MUANGPATHUMTHANI, PATHUMTHANI 12000, THAILAND TCF holder: Carrier Solutions UK Ltd. Porsham Close, Belliver Industrial Estate, 　 PLYMOUTH, Devon, PL6 7DB, United Kingdom Hereby declares that the machinery described below: Generic Denomination: Air Conditioner MMY-MUP0801FT8(J)P-E Model / type: MMY-MUP1001FT8(J)P-E MMY-MUP1201FT8(J)P-E MMY-MUP1401FT8(J)P-E MMY-MUP1601FT8(J)P-E MMY-MUP1801FT8(J)P-E...

  • Page 16: Specifications

    Specifications Sound power level (dBA) Model Weight (kg) Cooling Heating MMY-MUP0801FT8(J)P-E MMY-MUP1001FT8(J)P-E MMY-MUP1201FT8(J)P-E MMY-MUP1401FT8(J)P-E MMY-MUP1601FT8(J)P-E MMY-MUP1801FT8(J)P-E MMY-MUP2001FT8(J)P-E MMY-MUP2201FT8(J)P-E MMY-MUP2401FT8(J)P-E Sound power level (dBA) Model Weight (kg) Heating Cooling MMY-MUP0801FT8P-TR MMY-MUP1001FT8P-TR MMY-MUP1201FT8P-TR MMY-MUP1401FT8P-TR MMY-MUP1601FT8P-TR MMY-MUP1801FT8P-TR MMY-MUP2001FT8P-TR MMY-MUP2201FT8P-TR MMY-MUP2401FT8P-TR Carrying in the outdoor unit &$87,21...
  • Page 17 Weight center and weight :HLJKW FHQWHU RI DQ RXWGRRU XQLW   (Unit : mm) 1290 Weight center and weight Model X (mm) Y (mm) Z (mm) Weight(kg) MMY-MUP0801* MMY-MUP1001* 1160 MMY-MUP1201* MMY-MUP1401* MMY-MUP1601* MMY-MUP1801* MMY-MUP2001* MMY-MUP2201* 1060 MMY-MUP2401* - 17 -...
  • Page 18 Flow Selector unit Multi-port type (unit : mm) RBM-YP18** A [mm] B [mm] X [mm] Y [mm] Z [mm] Weight [kg] FUW4PE FUW8PE FUW12PE Flow Selector unit Single-port type (unit : mm) RBM-*** X [mm] Y [mm] Z [mm] Weight [kg] YP1121FUVPE YP1801FUVPE YP2801FUVPE...
  • Page 19 FLOW SELECTOR UNIT INSTALLATION SPACE (unit : mm) FUW12PE o Flow Selector unit Single-port type (unit : mm) (M10) RBM-*** YP1121FUVPE YP1801PUVPE YP2801FUVPE (*) In case of using the attached pipe (accessory) 350 - 19 -...
  • Page 20 &RXSOLQJ VL]H RI EUD]HG SLSH &RQQHFWHG VHFWLRQ ([WHUQDO VL]H ,QWHUQDO VL]H Connected section Standard Min. External size Internal size outer dia. Min. depth of Thickness Standard outer dia. of connected insertion Oval value (Allowable difference) copper pipe coupling +0.0 6.35 6.35(±0.03) 6.45 0.06 or less 0.50 +0.0 9.52 9.52(±0.03) 9.62...

  • Page 21: Charging Requirement With Additional Refrigerant

    Charging requirement with additional refrigerant After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of refrigerant. Calculation of additional refrigerant charge amount Refrigerant charge amount at shipment from the factory does not include the refrigerant for pipes at the local site. For refrigerant to be charged in pipes at the local site, calculate the amount and charge it additionally.
  • Page 22 Table 3-1 Corrective amount of refrigerant varies according to indoor unit capacity rank. Indoor unit capacity rank Capacity code (Equivalent to HP) 1.25 Corrective amount of refrigerant (kg) Indoor unit capacity rank Capacity code (Equivalent to HP) 2.25 Corrective amount of refrigerant (kg) ・If the Fresh Air Intake Indor Unit (MMD-UP****HFP*) is connected, the correction amount refrigerant for Fresh Air Intake Indoor Unit is 0 kg.

  • Page 23: Refrigerant (R410A)

    Refrigerant (R410A) This air conditioner adopts a HFC type refrigerant (R410A) which does not deplete the ozone layer. 1. Safety Caution Concerned to refrigerant (R410A) The pressure of R410A is 1.6 times higher than that of the former refrigerant (R22). Accompanied with change of refrigerant, the refrigerating oil has been also changed.
  • Page 24 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 25 Communication type, model names and the maximum number of connectable units 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 26: Wiring Diagrams

    1.WIRING DIAGRAMS 8, 10, 12, 14HP Model: MMY-MUP0801*, MUP1001*, MUP1201*, MUP1401* - 26 -...
  • Page 27 16, 18, 20HP Model: MMY-MUP1601*, MUP1801*, MUP2001* - 27 -...
  • Page 28 22, 24HP Model: MMY-MUP2201*, MUP2401* - 28 -...
  • Page 29 FS unit (Multi-port) Model: RBM-YP1801FUW4PE, RBM-YP1801FUW8PE, RBM-YP1801FUW12PE - 29 -...
  • Page 30 FS unit (Single-port) Model: RBM-YP1121FUVPE, RBM-YP1801FUVPE, RBM-YP2801FUVPE - 30 -...

  • Page 31: Parts Rating

    2. PARTS RATING 2-1. Outdoor Unit (MMY-MUP***1FT8*) Part name Model Specifications 〇 1 Compressor LA771A3TB-20M Output:4.54kW×1 〇 1 Compressor LA771A3TB-20M Output:6.75kW×1 〇 1 Compressor LA771A3TB-20M Output:6.75kW×1 〇 1 Compressor LA771A3TB-20M Output:6.75kW×1 1 Compressor LA1201K4FB-10UC 〇 Output:10.4kW×1 〇 1 Compressor LA1201K4FB-10UC Output:13.0kW×1 〇...

  • Page 32: Winding Resistance Of Outdoor Unit Main Parts

    2-1-1. Winding resistance of outdoor unit main parts Checking procedure Part name Compressor Measure and compare each winding resistance by digital tester. (Model : LA771A3TB-20M) Position Resistance value Red – White 0.242Ω ± 0.012 White – Black Black – Red (all same resistance is ok.) 20°C Compressor Measure and compare each winding resistance by digital tester.

  • Page 33: Inverter Assembly

    2-2. Inverter Assembly Name Model Specifications Power supply terminal block JXO-6004 AC600V/75A, 4P Noise Filter P.C. board (1) MCC-1748 Noise Filter P.C. board (2) MCC-1748 Line filter 0.9mH/AC460V/50A Interface P.C. board MCC-1747 Inverter P.C. board for Compressor (1) MCC-1729 Inverter P.C. board for Compressor (2) MCC-1729 Inverter P.C.

  • Page 34: Parts Layout In Outdoor Unit

    2-4. Parts Layout in Outdoor Unit (8, 10, 12, 14HP) Low pressure sensor High pressure sensor 3-4way-valves High pressure SW Check joint (Low pressure) Check joint (Liquid) TO sensor Oil separator Compressor Check joint (High pressure) Accumulator Plate heat-exchanger - 34 -...
  • Page 35 (16, 18, 20HP) Oil separator High pressure SW Compressor (22, 24HP) Oil separator 2-High pressure SWs 2-Compressor - 35 -...

  • Page 36: Parts Layout In Inverter Assembly

    2-5. Parts Layout in Inverter Assembly (8, 10, 12, 14HP) Model: MMY-MUP0801*, MUP1001*, MUP1201*, MUP1401* The Interface P.C. board sub-assembly Remove the Interface P.C. board sub-assembly. Inverter P.C. board for fan Interface P.C. board (MCC-1747) (MCC-1734) Thermistor Magnet Contactor Noise Filter P.C. board (1) (MCC-1748) Inverter P.C.
  • Page 37 16, 18, 20HP Model: MMY-MUP1601*, MUP1801*, MUP2001FT8* Inverter P.C. board for fan 2 The Interface P.C. board sub-assembly (MCC-1734) Inverter P.C. board for fan 1 Interface P.C. board Remove the Interface P.C. board sub-assembly. (MCC-1734) (MCC-1747) Thermistor Magnet Contactor Noise Filter P.C. board (2) (MCC-1748) Line Filter Inverter P.C.
  • Page 38 22, 24HP Model: MMY-MUP2201*, MUP2401* Inverter P.C. board for fan 2 The Interface P.C. board sub-assembly (MCC-1734) Interface P.C. board Remove the Interface P.C. board sub-assembly. Inverter P.C. board for fan 1 (MCC-1747) (MCC-1734) Magnet Contactor 2 Thermistor 2 Thermistor 1 Magnet Contactor 1 Noise Filter P.C.

  • Page 39: Outdoor (Inverter) Print Circuit Board

    2-6. Outdoor (Inverter) Print Circuit Board 2-6-1. Interface P.C. board (MCC-1747) <Target model：All model> PMV1 Output PMV4 Output CN300 CN303 Option Input/ Output PMV2 Output CN301 PMV3 Output CN302 High pressure SW CN305,306 UART communication AC Power IN CN600 CN304 Mg-CTT Detection of power supply CN304...

  • Page 40: Noise Filter P.c. Board (Mcc-1748)

    2-6-2. Noise Filter P.C. board (MCC-1748) <Target model：MMY-MUP****FT8*> 1290W 1Comp 2Fan model (K4 Compressor) 990W 1Comp 1Fan model (A3 Compressor) (16/18/20HP) (8, 10, 12, 14HP) 1290W 2Comp 2Fan model (A3 Compressor) (22/24HP) Power supply Output L1 Power supply Output L1 Power supply output to Comp Power supply output to Comp CN21...

  • Page 41: Inverter P.c. Board For Compressor (Mcc-1729)

    2-6-3. Inverter P.C. board for compressor (MCC-1729) <Target model：MMY-MUP****FT8*> 1290W 2Comp 2Fan model (A3 Compressor) 1290W 1Comp 2Fan model (K4 Compressor) (22/24HP) (16/18/20HP) 990W 1Comp 1Fan model (A3 Compressor) (8/10/12/14HP) Power supply Input L1 CN01 Power supply Input L2 8pin 4pin CN02 Reactor connecting terminal...

  • Page 42: Inverter P.c. Board For Fan (Mcc-1734)

    2-6-4. Inverter P.C. board for fan (MCC-1734) Vcc input Vdc input from CAPA Fan motor output CN100 Vcc output CN01 Vdc input from CAPA CN302 CN101 CN02 190m For inverter address setting UART communication SW800 CN802,CN803 2-6-5. USB isolate P.C. board (MCC-1754) screw USB communication to I/F USB connector...

  • Page 43: Parts Layout In Flow Selector Unit

    2-7. Parts Layout in Flow Selector unit 2-7-1. Parts Layout in Flow Selector unit Multi-port type Model: RBM-YP1801FUW4PE Pulse motor valve coil (PAM-MD12TF-306) Pulse motor valve coil (PAM-MD12TF-305) Model: RBM-YP1801FUW8PE Pulse motor valve coil (PAM-MD12TF-306) Pulse motor valve coil (PAM-MD12TF-305) Pulse motor valve coil Model: RBM-YP1801FUW12PE (PAM-MD12TF-306)

  • Page 44: Parts Layout In Electric Part Assembly (Flow Selector Unit)

    2-7-3. Parts Layout in Electric Part Assembly (Flow Selector unit) Model: RBM-YP1801FUW4PE P.C. board (MCC-1770) Model: RBM-YP1801FUW8PE P.C. board (MCC-1770) Model: RBM-YP1801FUW12PE P.C. board (MCC-1770) Model: RBM-YP1121FUVPE, RBM-YP1801FUVPE, RBM-YP2801FUVPE P.C. board (MCC-1771) - 44 -...

  • Page 45: Parts Unit Print Circuit Board

    2-8. FS Unit Print Circuit Board 2-8-1. FS unit multi-port type P.C. board (MCC-1770) PMV output Power supply output CN602 CN309 PMV output Power supply input CN603 CN67 UART between PCBs PMV output CN580,CN581 CN702 PMV output Grand CN04 CN703 PCB addres setting PMV status LED SW01...

  • Page 46: Fs Unit Single-Port Type P.c. Board (Mcc-1771)

    2-8-2. FS unit single-port type P.C. board (MCC-1771) PMV output CN602 PMV output CN603 Indoor unit (Sub BUS communication) CN200 MCU oepration LED / Indoor communication LED D501 / D502 PMV status LED D504～D506 Power supply input PMV setting CN67 SW01 MCU operation LED / Indoor communication LED LED and PMV status...

  • Page 47: Refrigerant Piping Schematic Drawing

    3. REFRIGERANT PIPING SCHEMATIC DRAWING Outdoor unit 8, 10, 12, 14HP Model: MMY-MUP0801*, 1001*, 1201*, 1401* Fan motor PMV1 Main heat exchanger PMV2 Sub heat exchanger Hot-gas heat exchanger SV5B 4WV3 4WV2 4WV1 仮 High-pressure sensor Low-pressure Oil separator sensor SV3D Accumulator High-...
  • Page 48 16, 18, 20HP Model: MMY-MUP1601*, 1801*, 2001* Fan motor Fan motor PMV1 Main heat exchanger L Main heat exchanger R Sub heat exchanger L Sub heat exchanger R PMV2 Hot-gas heat exchanger Hot-gas heat exchanger PMV3 SV5B 4WV3 4WV2 4WV1 High-pressure sensor 仮...
  • Page 49 22, 24HP Model: MMY-MUP2201*, 2401* Fan motor Fan motor PMV1 Main heat exchanger L Main heat exchanger R Sub heat exchanger L Sub heat exchanger R PMV2 Hot-gas heat exchanger Hot-gas heat exchanger PMV3 SV5B 4WV3 4WV2 4WV1 仮 High-pressure sensor Low-pressure Oil separator...
  • Page 50 Functional Part Name (Connector CN324:WHI) SV3D 1) Reserves oil in the oil separator during OFF time. 2) Retums oil reserved in the oil separator to the compressor during ON time. (Connector CN324:WHI) SV3F 1) Supplies oil in the accumulator to the compressor 2) Shuts off the liquid refrigerant from the accumlator when the compressor dilution (SV41 connector CN324:WHI, SV42 connector CN327:BLK) 1) High/Low pressure balance...

  • Page 51: Indoor Unit

    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) U series Indoor Unit Functional Part Explanation Functional part name Functional outline Pulse Motor Valve (Connector CN082 (6P): Blue)

  • Page 52: Combined Refrigerant Piping System Schematic Diagrams

    4. COMBINED REFRIGERANT PIPING SYSTEM SCHEMATIC DIAGRAMS 4-1. Cooling operation (Operation of cooling only) Header Unit (MMY-MUP1601*, MUP1801*, MUP2001*) - 52 -...

  • Page 53: Single Defrost Unit

    4-2. Single defrost unit Header Unit (MMY-MUP1601*, MUP1801*, MUP2001*) - 53 -...

  • Page 54: Heating Operation (Operation Of Heating Only)

    4-3. Heating operation (Operation of heating only) Header Unit (MMY-MUP1601*, MUP1801*, MUP2001*) - 54 -...

  • Page 55: Individual Defrost Operation

    4-4. Individual defrost operation Header Unit (MMY-MUP1601*, MUP1801*, MUP2001*) - 55 -...

  • Page 56: Simultaneous Cooling Operation (Operation Of Cooling And Heating)

    4-5. Simultaneous cooling operation (Operation of cooling and heating) Header Unit (MMY-MUP1601*, MUP1801*, MUP2001*) - 56 -...

  • Page 57: Simultaneous Heating Operation (Operation Of Cooling And Heating)

    4-6. Simultaneous heating operation (Operation of cooling and heating) Header Unit (MMY-MUP1601*, MUP1801*, MUP2001*) - 57 -...

  • Page 58: Emergency Cooling Operation (Operation Of Cooling Only)

    4-7. Emergency cooling operation (Operation of cooling only) Header Unit (MMY-MUP1601*, MUP1801*, MUP2001*) - 58 -...

  • Page 59: Manual Emergency Heating

    4-8. Manual emergency heating Header Unit (MMY-MUP1601*, MUP1801*, MUP2001*) - 59 -...

  • Page 60: Control Outline

    5. CONTROL OUTLINE 5-1. Outdoor Unit Item Description of operation, numerical data, and other information Remarks [1] PMV1, 2, 3 control (PMV 1 and 2, 3) 1. Pulse 1) During air conditioner operation, the pulse count of a PMV1 (pulse motor valve 1) is motor valve (PMV) controlled between 75 pls and 3000 pls, During air conditioner operation, the pulse...
  • Page 61 Item Description of operation, numerical data, and other information Remarks [1] Cooling fan control 2. Outdoor • In the simultaneous 1) Outdoor fan speed (mode) is controlled on the basis of measurements provided by fan control cooling mode, it is the Pd sensor.
  • Page 62 Item Description of operation, numerical data, and other information Remarks 3. Capacity 1) The compressors of the header and follower units are controlled on the basis of • The outdoor rotation control capacity demand issued by indoor controllers. control may be performed 2) The two compressors featured in an outdoor unit operate on a rotational basis, so even when the insufficient that, every time they come to stop, their order of startup changes.
  • Page 63 Item Description of operation, numerical data, and other information Remarks 5. Oil This is a control for preventing oil shortage in the compressor between the outdoor units, recovery and oil equalization control is performed as follows during cooling operation and heating control operation.
  • Page 64 Item Description of operation, numerical data, and other information Remarks 7. Defrosting • The reverse defrosting method is used for the outdoor unit in a single system, and the control individual reverse defrosting method is used for the outdoor units in a connected system. (Reverse •...
  • Page 65 Item Description of operation, numerical data, and other information Remarks [1] SV4 gas and SV2 balance control 8. Release This control turns on SV4 and SV2 when the compressor is stopped to balance the valve control gas and reduce the starting load when the compressor is turned on next time. This control is performed independently by the center unit and each terminal unit.
  • Page 66 Item Description of operation, numerical data, and other information Remarks 9. Capacity This control is a capacity release control that is performed for the purpose of release suppressing the thermostat-OFF due to freezing prevention due to excessive capacity even in Min speed [rps] during cooling small capacity operation. control [1] Control condition Perform when all the following conditions are met.
  • Page 67 Item Description of operation, numerical data, and other information Remarks [1] Current, power release value control 12. Inverter P.C.board The purpose of this control is to prevent high pressure rise and overheating of electric parts by reducing the compressor speed when the maximum current and maximum control for compressor power value set for each model are exceeded.
  • Page 68 Item Description of operation, numerical data, and other information Remarks 13. Heat Since the refrigerant cooling heat sink cools the device by the refrigerant temperature of sink the liquid pipe, if the liquid pipe temperature drops due to a gas shortage cycle, dew condensation condensation on the device may occur.

  • Page 69: Indoor Unit

    5-2. Indoor Unit 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 speed and the existence of air direction adjustment.
  • Page 70 Item Outline of specifications Remarks Return air temperature 2) By setting the CODE No. 06, the setup temperature Room temp. shift of heating operation in heating operation can be compensated. control (Continued) Setup data Except while sensor of +2C˚ +4C˚ +6C˚...
  • Page 71 Item Outline of specifications Remarks Air 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]) Fan speed 2) When the air speed mode [AUTO] is selected, the air 4-way cassette speed varies by the difference between TA and Ts.
  • Page 72 Item Outline of specifications Remarks Setting of height ceiling Air speed selection mode at CODE No. [5D] or (Continued): at SW501 on P.C.board. 4-way, compact 4-way (only UP015), 2-way, 1-way (SH) (Air speed selection of UP012 or less and UP018 for Compact 4-way are only Standard.) Factory default Type 1 Type 3...
  • Page 73 Item Outline of specifications Remarks 1. In heating operation, the lowest temperature between Prevention of cold 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 74 Item Outline of specifications Remarks Refrigerant (Oil) The indoor unit which is under STOP/Thermostat- • Recovery operation normally recovery control in OFF status or which operates in [FAN] mode takes place when it detect that cooling operation performs the following controls when it received the the refrigerant is less.
  • Page 75 Item Outline of specifications Remarks Display of filter 1) The filter sign is displayed with LC by sending the filter- FILTER] goes on. sign [ reset signal to the remote controller when the specified The filter sign is not (Not provided to time (150H/2500H) elapsed as a result of integration of the displayed in the wireless...
  • Page 76 Item Outline of specifications Remarks Subject model : Louver control 1) Louver position setup 4-way cassette • When the louver position is changed, the position moves Compact 4-way necessarily to downward discharge position once to return to 2-way cassette the set position. 1-way cassette (SH) •...

  • Page 77: Compact 4-Way Cassette Type

    Item Outline of specifications Remarks Louver control <<Individual air direction setup>> Subject model : (Continued) UNIT LOUVER 4-way cassette • Pushing Louver select button enables every discharge Compact 4-way 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 78 Item Outline of specifications Remarks Louver control <<Selection of Swing mode>> Subject model : 4-way cassette (Continued) • For the Swing mode, the following three types of modes Compact 4-way are selectable and settable by keeping Swing/Direction SWING/FIX button pushed for 4 seconds or more on the remote controller.
  • Page 79 Item Outline of specifications Remarks Louver control • If there is the locked louver in the unit, [ ] goes on the For the setting operation, refer to [How to set louver remote controller screen. (Continued) lock] of Installation Manual. •...

  • Page 80: Applied Control And Functions

    6. APPLIED CONTROL AND FUNCTIONS 6-1. Method to Set Outdoor Unit Function Code No. (O.DN ) The settings can be changed by operating the switches on the interface board. In the TU2C-Link communication system, it can also be done by operating the wired remote controller. Applicable controls setup (settings at the site) Basic procedure...
  • Page 81 When switching from the wired remote controller (RBC-AWSU**) Basic procedure Be sure to stop the air conditioner before making settings. (Change the setup while the air conditioner is not working.) Push the [ Menu] button to display the menu screen Push and hold the [ Menu] button and the [...
  • Page 82 Refer to the Installation Manual supplied with the outdoor unit or service manual for details about Code(DN) and Data. 0000 0001 Push the [ Menu] button to set the other Code(DN) and Data.After "Continue?" is displayed on the screen, push the "...
  • Page 83 Outdoor Unit Function Code No. (O. DN) Table (Includes Functions Needed to Perform Applied Control on Site) Item Description At shipment Code range : 0000 to 0255 Type Setting According to type Model name O.DN[003] Model name O.DN[003] MMY-MUP1601* Undefined 0000 0005 MMY-MUP0801*...
  • Page 84 Item Description At shipment System cooperation 0000 : None (vassal) 0001 : Prohibition 0000: None defrosting settings 1 0002 : 2-system cooperation (master unit) 0003 : 3-system cooperation (master unit) (vassal) (number cooperating) * set [01D] = 0002 or 0003 to outdoor unit set to master unit in outdoor DN code [01F] System cooperation 0000 : None 0001 to 0128: Addresses...

  • Page 85: Applied Control Of Outdoor Unit

    6-2. Applied Control of Outdoor Unit The outdoor fan high static pressure support and priority operation mode (cooling / heating / number of units / or priority indoor unit) functions, High heating mode function are available by setting the Outdoor DN Code. 6-2-1.

  • Page 86: Priority Operation Mode Setting

    6-2-2. Priority Operation Mode Setting Purpose/characteristics This function allows switching between priority cooling and priority heating. Four patterns of priority operation mode setting are available as shown in the table below. Select a suitable priority mode according to the needs of the customer. Setup CAUTION In the case of the priority indoor unit mode, it is necessary to set up the specific indoor unit chosen for...
  • Page 87 CODE No.(DN) setting ■ Wired remote controller (RBC-AWSU**) Perform the advanced settings for the air conditioner. Carry out the setting operation while the indoor unit is stopped.(Turn off the air conditioning unit before starting the setting operation.) Display example of AWSU52* Field setting menu (2/3) 6.Setting louver position...

  • Page 88: Applied Control Of Outdoor Unit

    6-2-3. Applied Control of Outdoor Unit Optional control P.C. boards provide access to a range of functions as listed below. Function Outdoor unit for Control P.C. board to be used Outdoor unit interface P.C. board setting* control P.C. board TCB- TCB- TCB- Connector...
  • Page 89 Optional application control board mounting position. Power peak-cut control PC board(TCB-PCDM4UL) Wire clip Power peak-cut control PC boad Cable strap Cable strap Inverter case type B Inverter case type A (MMY-MUP 0801*, 1001*, 1201*, 1401*, 1601*, (MMY-MUP2201*, 2401*) 1801*, 2001*) Quantity of cable straps : 3 Quantity of cable straps : 2 Operation mode selection PC board(TCB-PCMO4UL)

  • Page 90: Operation

    6-2-3-1. Power peak-cut Control (Standard) (1) Four-core cable support L1: Display lamp ensuring power peak cut control Header outdoor unit Locally procured Optional PCB Power supply Display Outdoor unit relay interface PCB [OPERATION] Shield wire PJ17 CN513 SW105 [ON] [OFF] 1 2 3 4 Bit1 OFF, Bit2 OFF Shield...
  • Page 91 (2) Two-core cable support Setting SW105 bit1 on I/F P.C.board of the header outdoor unit to ON allows ON/OFF power peak-cut control to be switched using [ON] terminal input (SW1) alone. L1: Display lamp ensuring power peak cut control Header outdoor unit Locally procured Optional PCB Power...
  • Page 92 The optional P.C. board should be connected to the header outdoor unit (U1). L1: Display lamp ensuring power peak cut control Header outdoor unit Locally procured Optional PCB Power Display supply Outdoor unit relay interface PCB Shield wire [OPERATION] CN513 PJ17 SW105 [ON]...
  • Page 93 Note 1: Specifications of display relay contact • The terminal for display output ([Operation] terminal) must satisfy the following electrical rating. <Electrical Rating> 220 to 240 VAC, 10 mA or more, 1 A or less 24 VAC, 10 mA or more, 1 A or less (non-conductive load) When connecting a conductive load (e.g.

  • Page 94: Snowfall Fan Control

    6-2-3-3. Snowfall Fan Control Header outdoor unit Locally procured Connection Outdoor unit Optional PCB cable Snowfall sensor interface PCB COOL CN509 PJ17 HEAT Shield wire Operation SW1: Snowfall detection switch (snowfall sensor) An external snowfall signal turns on the outdoor unit fan. Terminal Input signal Operation...

  • Page 95: Night Operation (Sound Reduction) Control

    6-2-3-5. Night operation (sound reduction) Control Header outdoor unit Locally procured Connection Optional PCB Outdoor unit cable interface PCB CN508 PJ17 COOL HEAT Shield wire SW1: Night time signal switch Operation This function decreases noise at night or other times as necessary. Terminal Input signal Operation...

  • Page 96: Operation Mode Selection Control

    6-2-3-6. Operation Mode Selection Control Header outdoor unit Locally procured Connection Outdoor unit Optional PCB cable interface PCB CN510 PJ17 COOL HEAT Shield wire SW1: Cooling mode specified input switch SW2: Heating mode specified input switch NOTE SW1: COOL mode selection switch SW2: HEAT mode selection switch Input signal Operation...

  • Page 97: Trouble/Operation Output

    6-2-3-7. Trouble/Operation Output Locally procured Header outdoor unit (See “NOTE”) Optional PCB Outdoor unit interface PCB OUTPUT1 CN511 PJ20 OUTPUT2 OUTPUT3 Shield wire Operation In-operation output: An in-operation indication signal is output as long as at least one indoor unit is in operation in the line.

  • Page 98: Compressor Operation Output

    6-2-3-8. Compressor Operation Output Locally procured Outdoor unit (See “NOTE”) Optional PCB Outdoor unit interface PCB CTR1 OUTPUT1 CTR2 CN514 PJ20 OUTPUT2 Shield wire Operation When a compressor is in operation, a relay connected to the output terminal assigned to it is turned on (closed). When it is at rest, the relay is turned off (open).

  • Page 99: Operating Rate Output

    6-2-3-9. Operating Rate Output Locally procured Header outdoor unit (See “NOTE”) Optional PCB Outdoor unit interface PCB OUTPUT1 PJ20 CN514 OUTPUT2 MONITOR OUTPUT3 Shield wire Operation At the output terminals, a signal is present (relay closed) or absent (relay open) in various combinations according to the system operation factor, as shown in the diagram.

  • Page 100: Notice Code

    6-3. Notice Code • Notice Code is a function only in TC2U-Link communication. • When the outdoor or indoor unit detects its conditions requiring caution or maintenance, this function notices you to check your units with the spanner mark (Notice code mark) on the wired remote controller or central controller display.
  • Page 101 2. Notice Code Display (7-segment display) on Outdoor Interface P.C. Board The notice codes detected or issued from the outdoor unit can be confirmed with 7-segment display on the P.C. board. (The notice codes detected or issued from the other outdoor unit cannot be displayed.) (1) Displaying the notice code being issued now Setting the SW01, SW02, SW03 to 1, 1, 14 respectively displays the notice code being issued from the outdoor unit on the 7-segment display 7-segment display [n.

  • Page 102: System Cooperation Defrosting

    6-4. System Cooperation Defrosting Overview This is a function in which two systems or three systems of SHRM-u are communicably connected, and the timing of defrosting at each system is offset. Installing an indoor device of a different system in the same room and performing system cooperation defrosting suppresses the room temperature from dropping while defrosting.

  • Page 103: Setup Method

    Setup method (1) Connect the header units of systems to perform system cooperation defrosting to each other by Uh (U3, U4) (Central control). (2) SW100-bit1 (termination resistance of Uh line) of master outdoor unit is turned on. (3) Do not set the same system addresses for each system that link defrosting. For the system address, please refer to "7-4-3.
  • Page 104 Operations (contents of control) (1) Defrosting conditions for system cooperation defrosting (hereinafter referred to as “cooperation defrosting conditions”) are measured at each system, separately from normal defrosting conditions. When multiple systems satisfy the cooperation defrosting conditions at the same time, the system that has satisfied the conditions earlier starts defrosting.

  • Page 105: Night Operation (Sound Reduction Control)

    6-5. Night operation (Sound reduction control) Overview The 'Night operation' function of RBC-AWSU** remote control can be used with SHRM-u. It reduces • the sound of outdoor unit putting priority on quietness during night time operation, etc., and the operation time can be set. 6-5.
  • Page 106 The 'Night operation can be set by a number of remote controls. It operates according to the start time • • and the end time set by each remote controls. No.1 Indoor unit RC 22:00 06:50 Night operation Start/End time Start No.2 Indoor unit RC 12:00...

  • Page 107: Test Operation

    7. TEST OPERATION 7-1. Procedure and Summary of Test Operation A test operation is carried out with the following procedure. When problems or a trouble occurs at any step, remove the causes of the problem or trouble referring to “8 TROUBLESHOOTING.” Check basic items, mainly the installation work.

  • Page 108: Check Items Before Test Operation (Before Powering-On)

    7-2. Check Items before Test Operation (before powering-on) Prior to the test operation, check the following items to verify there are no problems with the installation work. Main check items for electric wiring The communication system differs from previous period model air conditioners. Check wiring points again carefully.
  • Page 109 (2) In the case that a central control system is connected (before address setup) Central Remote Controller U3 U4 To other refrigerant line (1) Header Unit (A) Follower Unit (B) Follower Unit (C) U3 U4 U3 U4 U3 U4 U3 U4 Other Refrigerant Outdoor Unit...
  • Page 110 Check list 1 • Using Checklist 1, check that there are no problems with the installation work. Is the capacity of the Outdoor total capacity Header unit (A) Indoor unit circuit breaker (Earth Follower unit (B) leakage breaker) Follower unit (C) appropriate? Is the gauge of the Header unit (A)
  • Page 111 Checklist 2 • Check the additional amount of refrigerant. Additional amount of refrigerant charge at site = [1] + [2] x [A] + [3] + [4] ［1］.Additional amount of refrigerant based on the outdoor unit capacity type (Table 1-1,1-2) ［2］.Additional amount of refrigerant based on the liquid pipe diameter and length. Real length of liquid pipe ×...
  • Page 112 Next, enter the total length for each liquid pipe diameter in the following table, and then calculate the additional amount of refrigerant by pipe length. Table 2. Additional amount of refrigerant based on the liquid pipe and length. Pipe diameter on the Standard amount Total pipe length on Additional amount of refrigerant...
  • Page 113 Next, refer to the following table below, calculate the corrective amount of refrigerant according to system diversity Table 4. Refrigerant amount adjustment based on the diversity. Refrigerant amount adjustment Diversity 50 % ≤ D < 60 % -4.5 60 % ≤ D < 70 % -3.5 70 % ≤...

  • Page 114: Check At Main Power-On

    7-3. Check at Main Power-on After turning on the main power of the indoor units and outdoor unit in the refrigerant line to conduct a test operation, check the following items in each outdoor and indoor unit. (After turning on the main power, be sure to check in order: indoor unit outdoor unit.) <Check on the outdoor unit>...
  • Page 115 <Check on the indoor unit> (1) Display check on the remote controller (in the case of a wired remote controller) Check that a frame, as shown in the following figure at left, is displayed on the LC display section of the remote controller.

  • Page 116: Address Setup

    7-4. Address Setup This product requires address setup before operation. Follow this procedure for address setup. 7-4-1. Precautions (1) Address setup is not performed simply by turning on the power supply. (2) For indoor units, address setup can be done either by manual address setup or by automatic address setup: Automatic address setup: Setup from SW06 on the interface P.C.

  • Page 117: Address Setup Procedure

    7-4-3. Address Setup Procedure Before setting the address, it is necessary to set the DIP-SW on the header outdoor unit interface P.C. board. 1. Follow the steps below to open the electrical control box cover (1) Loosen the screws on the left and right side of the electrical control box cover. (2) Remove the screw A for MMY-MUP2201*, 2401* (There is no screw A for MMY-MUP0801*, 1001*, 1201*, 1401*, 1601*, 1801*, 2001*) (3) Hold the lower side of the electrical control box cover to draw it toward you while lifting it up, and remove the...
  • Page 118 2-2.Line (system) address setting For the central control among two or more refrigerant lines or group control among two or more refrigerant lines, set the line (system) address. (Example) Controlling a single refrigerant line centrally Controlling 2 or more refrigerant lines centrally Outdoor Outdoor Outdoor...
  • Page 119 Interface P.C. board on the header outdoor unit × Line address switches on the outdoor interface PC board (O : switch on, : switch off) SW101 SW102 SW103 2 3 4 2 3 4 2 3 4 SW104 SW105 SW106 2 3 4 2 3 4 Line (system)
  • Page 120 Switch setting (setting example when controlling 2 or more refrigerant lines centrally) *The items in bold font must be set manually. Outdoor units (setting manually) Outdoor unit's interface Factory Header unit Follower unit Header unit Follower unit Header unit P.C. board default SW101 Bit1 (No se�ng...
  • Page 121 4. Address setup Automatic address setup Only if the address of all indoor units in the same system is not set, the following address will be set automatically. • Refrigerant line (system) address (Indoor unit code[12]) ... The line address of the indoor units are automatically set to the same number as the line address set in both SW101 and 102 of the outdoor Header unit I/F board.
  • Page 122 Manual address setup from the remote controller With indoor wiring work completed and outdoor wiring work not done—in cases where indoor unit addresses are decided in advance from the wired remote controller, or in cases where addresses are change after address setup. (Wiring example for 2 refrigerant lines) Line 1 Line 2...

  • Page 123: Basic Procedure

    <RBC-AWSU**> Basic procedure Be sure to stop the air conditioner before making settings. (Change the setting while the air conditioner is not working.) Push the [ Menu] button to display the menu screen Push and hold the [ Menu] button and the [ ] button at the same time to display the "Field setting menu".
  • Page 124 ▼ (Indoor address) Push the [ ] / [ ] button to select Code No. Change Code No. to 13 with [ ] / [ ] button. Push the [ ] / [ ] button to select Data. Select the indoor unit address with ] / [ ] button.
  • Page 125 Procedure to setup address 65 to 128 from the remote controller Under TCC-Link settings (factory shipping settings), setting addresses from 65 and above are not available from the remote controller. Setting the indoor address or the zone address to 65 to 128 must be done under TU2C-Link settings, which can be performed by the procedures shown below.
  • Page 126 Method 2 (Setting the address manually from the remote controller) Follow the procedure below if setting the indoor unit address manually from the remote controller is desired due to the indoor address not being set (factory default) and automatic address setting not being possible for reasons such as the outdoor unit installation not being installed.
  • Page 127 <Setting the indoor terminal resistance manually (if the farthest room is known)> 12) Set the Indoor Unit Function Code I.DN [1FC] to "0001" (indoor terminal resistance ON). 13) After installing the outdoor unit, set the Outdoor Unit Function Code O.DN [82] to "0003" (TU2C-Link) for the header outdoor unit and the follower outdoor unit.
  • Page 128 Resetting the address (Resetting to the factory default (address undecided)) Method 1 Clearing each address separately using a wired remote controller. Set the system address, indoor unit address and group address to “00Un” using a wired remote controller. (For the setting procedure, refer to the address setting procedures using the wired remote controller on the previous pages.) * Address not set will be either "00Un"...

  • Page 129: Communication Setting

    Communication setting This product need setting TU2C-Link communication after the address setting. CAUTION • Be sure to complete the address setting before communication setting. • It may takes about 1 to 3 minutes to address one refrigerant line. • Settings on the outdoor unit are required for communication setting. (Communication setting is not started simply by turning on the power.) •...
  • Page 130 Procedure to set up the communication method manually The communication method and the terminal resistance settings can be changed by setting the outdoor DN code (O.DN) and the Indoor Unit Function Code (I.DN). (See also 6-4. Method to set Outdoor Unit Function Code No. (O.DN) for operation method.) <Procedure to set the TU2C-Link communication setting>...
  • Page 131 Procedure to clear the communication method (restoring the factory default [TCC-Link communication settings]) • This is a function in which the communication method setting for all the outdoor units and indoor units (every outdoor unit connected to the Uc line and every indoor unit connected to the Uv line) will reset to the TCC- Link communication settings.

  • Page 132: Address Setting Method

    In the case of an increase in address-undefined indoor units (extension, etc.) To set up the indoor address of a unit with an address that is undefined due to the extension of indoor units or replacement of PC board, etc., follow the methods below. 1.
  • Page 133 3. Communication setting (Auto setting) Setup procedure (1) Turn on indoor units first, and then turn on outdoor units. (2) Set the rotary switch of the interface P.C. board on the header outdoor unit to SW01=[2], SW02=[16] and SW03=[2]. (3) The 7-segment display switches between “c.c. b p s” and “c.c. 0 “ at 1-second intervals. (4) Push and hold SW04 for more than 5 seconds.
  • Page 134 Procedures for adding an indoor unit with communication method and address already set In cases of adding a new indoor unit with the TU2C-Link setup or address setup already completed due to relocation etc., perform the setup 1) to 3) below. 1) Communication method •...
  • Page 135 (Reference) Method to clear when communication method settings, address set / unset are coexisting • If units with different communication method settings or units with set / unset addresses are coexisting, It can be changed back to the factory default settings by performing "Clear communication method" – "Clear all addresses (line, indoor, and group addresses) at once".
  • Page 136 (Reference) Operations for communication method automatic setup / communication method clear, automatic address setting / address batch clear (When the outdoor unit, indoor unit, and the remote controller are all U series) - 136 -...

  • Page 137: Setting When Connecting Indoor Units To Fs (Flow Selector)

    7-4-4. Setting when connecting indoor units to FS (Flow Selector) unit and when connecting safety equipment Cautions to connection of indoor unit • When connecting the indoor units to a single port type FS unit, a branch of the multi port type FS unit it is necessary to setup CODE No.[FE] Be sure to setup CODE No.

  • Page 138: Check After Address Setup When Central Control System Is Connected

    7-4-5. Check after Address Setup when Central Control System Is Connected When the central control system is connected, check that the following setup has finished after address setup. Central remote (3) (2) controller U1 U2 U3 U4 To other refrigerant line Line address = 2 Line address = 1 Other refrigerant line...
  • Page 139 How to setup the CODE No. [FE] (Flow Selector unit address) ■ • As for every single port type FS unit, multi port type FS unit setup CODE No. “FE” within the range of 1~128. This CODE No. cannot be duplicate in one system. 1.

  • Page 140: Troubleshooting In Test Operation

    7-5. Troubleshooting in Test Operation If there are phenomena such as the output of a check code or the remote controller is not accepted when poweredon after wiring work or during address setup operation, the following causes are considered. 7-5-1. A Check Code is Displayed on the Remote Controller Check the code Header displayed on the...
  • Page 141 FS: Flow Selector unit Check the code Header displayed on the unit 7- Cause Countermeasures indoor remote segment controller display Duplication of outdoor line addresses Modify the line address setup of the header unit • Line address setup trouble (occurred after between lines.

  • Page 142: No Remote Controller Response With Check Code

    7-5-2. No Remote Controller Response with Check Code (Operation from the indoor remote controller is not accepted, and a check code is displayed on the 7- segment display of the interface PC board of the header unit) Indoor remote Header unit controller 7-segment Cause...

  • Page 143: Connected Indoor/Outdoor Unit Quantity Check

    7-5-4. Connected Indoor/Outdoor Unit Quantity Check (In checking the number of connected outdoor units and connected indoor units after address setup, a lower number of connected units is displayed (There are outdoor/ indoor units that do not operate in a test operation)) Status Cause...
  • Page 144 Miswiring example Remote Header unit Figure controller 7-segment Miswiring example status display Header unit Header unit Header unit Header unit Line 1 Line 2 U1 U2 U5 U6 U1 U2 U5 U6 U1 U2 U1 U2 Fig 1 No response E19, 02 U1 U2 U1 U2...
  • Page 145 ：Outdoor unit ：Single port type FS unit ：Remote controller ：Piping FS-S ：Indoor unit ：Multi port type FS unit ：Control wiring FS-M ◆ [ Indoor Code DN number Setting example ] [ 0014 ]：Indoor unit Group address 0：Individual (Factory default) 1：Header unit 2：Follower unit [ 00FE ]：Flow selector unit address ・Should not be duplicate in one system.
  • Page 146 In case of connecting one indoor unit and not connecting indoor unit to one port Incorrect connection of multi port type FS unit. FS-M FS-M ① ② ③ ① ② ③ Indoor unit ① ② ③ [0014 ] [ 00FE ] [ 00FD ] [ 0105 ] [ 0106 ]...
  • Page 147 In case of connecting two group operation of indoor units to multiple ports of multi port type FS Incorrect connection unit, and connecting two remote controllers to one group of indoor unit. FS-M FS-M ① ② ③ ④ ① ② ③...
  • Page 148 In case of connecting one group operation of indoor unit and one indoor unit to one port In case of connecting one group operation of indoor unit to combining branches of multi port type FS unit. of multi port type FS unit. FS-M FS-M ①...

  • Page 149: Test Operation (Test Run) Check

    7-6. Test Operation (test run) Check 7-6-1. Fan Check START Check code appears When a check code has been Push the Start/Stop button on the remote controller. displayed on the remote controller eliminate the cause of the trouble, by referring to Check code "check code and check appears...

  • Page 150: Inspection Mode (Safety Measures)

    7-6-2. Inspection mode (safety measures) When connecting the FS unit perform the following detailed inspection mode. This mode verifies that safety measures are properly connected. The detailed inspection mode is performed on the interface board of the outdoor unit. Detailed inspection mode is completed in about 40 minutes in general and about 90 minutes at maximum. <Detailed inspection mode start operation>...

  • Page 151: Wired Remote Controller

    Wired remote controller <RBC-AWSU**> Push the [ Menu] button to display the menu screen Push and hold the [ Menu] button and the [ ] button at the same time to display the "Field setting menu". →Push and hold the buttons for more than 4 seconds Push the [ ] / [...
  • Page 152 Wireless remote controller Turn on the power of the air conditioner. <Overview of test run operations using the wireless remote controller> When power is turned on for the first time Cooling test run: after installation, it takes approx. 5 minutes until the remote controller ON/OFF 17°C 18°C...
  • Page 153 (2) Test operation START Refer to "Test operation procedure" Test operation for one indoor unit of the indoor remote controller. The operation does not start for approximately 3 minutes after Operation starts powering-on or stopping operation. Note: After powering-on, it may require up to 10 minutes to start the operation due to the initial communications of the system.

  • Page 154: Heating Operation

    Note 1: Criteria for the difference between suction and discharge temperatures (1) Cooling operation After operating for a minimum of 30 minutes in “COOL” mode, if the T dry bulb temperature difference between suction and discharge air of the indoor unit is 8°C or more, it is normal. (2) Heating operation After operating for a minimum of 30 minutes in “HEAT”...

  • Page 155: Service Support Function

    7-7. Service Support Function 7-7-1. Check Function for Connecting of Refrigerant and Control Lines This function is provided to check misconnection of the refrigerant pipes and the control transmission line (Wiring over lines) between indoor unit and outdoor unit by using the switch on the interface P.C. board of the header unit.
  • Page 156 On rotations of outdoor fans Outdoor fans may rotate slowly to control pressure when cooling with low outer air temperature or heating with excessive load. For control content, also refer to items in Section 5, “Control Outline: Outdoor Unit, Outdoor Fan Control.”...

  • Page 157: Function To Start/Stop (On/Off) Indoor Unit From Outdoor Unit

    7-7-2. Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit The following functions of the indoor unit can start or stop by the switches on the interface P.C. board of the header unit. Function Outline Setup/Release 7-segment display Cooling test Changes the mode of all the [Setup] Section A...
  • Page 158 NOTE 1) This start/stop function only sends the signals from the outdoor unit to the indoor unit, such as start, stop, operation mode, etc. It does not resend the signals even if the indoor unit does not follow the sent signals. NOTE 2) The above controls are not used during abnormal stop.
  • Page 159 (1) Cooling test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system for the cooling test operation mode, by using switches on the interface board of the header unit. <Operation procedure>...
  • Page 160 (2) Heating test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system for the heating test operation mode, by using switches on the interface board of the header unit. <Operation procedure>...
  • Page 161 (3) Fan test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system for the fan test operation mode by using switches on the interface P.C. board of the header unit. <Operation procedure>...
  • Page 162 (4) Batch start/stop (ON/OFF) function This function is provided to start/stop collectively all the indoor units connected to the same system by using switches on the interface board of the header unit. <Operation procedure> Be sure to turn on power at the indoor side Power ON before power-ON of outdoor unit.
  • Page 163 (5) Individual start/stop (ON/OFF) individual test operation function This function is provided to start/stop (ON/OFF) individually each indoor unit connected to the same system by using switches on the interface board of the header unit. Set SW01 [16] and set SW02, SW03 to indoor address No. (1 to 128) to be started (Refer to the following table*) - only the setup indoor unit starts operation.

  • Page 164: Check Code Clearing Function

    7-7-3. Check Code Clearing Function (1) Clearing from the main remote controller <RBC-AWSU**> ▼ Clearing a check code of the outdoor unit There is no such function in the remote controller. Push the [ Menu] button to display the menu screen Push and hold the [ Menu] button and the [...
  • Page 165 (2) Clearing check code by using switches on the interface board of the header unit Using the switches on the interface P.C. board of the header unit, this function is to clear the currently detected check code for each refrigerant circuit system without resetting the power supply. Check codes in both outdoor and indoor units are once cleared, and check code detection is performed again.

  • Page 166: Remote Controller Distinction Function

    7-7-4. Remote Controller Distinction Function This function is provided to distinguish the remote controller connected to the indoor unit from the outdoor unit for a refrigerant circuit system by using switches on the interface P.C. board of the header unit. <Distinction procedure>...

  • Page 167: Pulse Motor Valve (Pmv) Forced Open/Close Function In Indoor Unit

    7-7-5. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit This function is provided to open or close forcedly PMV for 2 minutes in all the indoor units by the switch operation on the interface P.C. board of the header unit. This function is also used to open PMV fully when turning off the power and executing an operation.

  • Page 168: Forced On Function In Outdoor Unit

    7-7-6. Pulse Motor Valve (PMV) Forced Open/Close Function and Solenoid valve Forced ON Function in Outdoor Unit The solenoid valves provided to outdoor units can be forced ON (open) by switching operations at the interface P.C. board of the outdoor unit. Also, the pulse motor valves (PMV1, PMV2, PMV3, PMV4) of the outdoor unit can be forced to full-open, half open, and full-closed for two minutes.

  • Page 169: Pulse Motor Valve (Pmv) Forced Open/Close Function In Fs Unit

    7-7-7. Pulse Motor Valve (PMV) Forced Open/Close Function in FS unit. The pulse motor valves (PMV-D, PMV-S) of the FS unit can be forced to full-open and full-closed for 30 minutes. Use this function to check for PMV malfunctioning, clogging, miss connection, and so forth. [Control start method] (1) Set SW01 [11] and set SW02, SW03 to indoor address No.
  • Page 170 [Method of operating pulse motor valve (PMV) (forced open/close)] (1) Use the rotary switch [SW03] to select the PMV to operate. When [P#. ] is displayed in the PMV display, PMV# is operating according to normal control. (#: selected PMV No.) (2) Pushing the push-switch [SW04] for one second sets the selected PMV# to full-open.

  • Page 171: Fan Operation Check In Outdoor Unit

    7-7-8. Fan Operation Check in Outdoor Unit This function is provided to check the fan operation of the outdoor unit by using switches on the interface P.C. board in the outdoor unit. The fan speed can be controlled by setting of the switches. Use this function to check the operation or abnormal sound in the fan system.

  • Page 172: Abnormal Outdoor Unit Discrimination Method By Fan Operating Function

    7-7-9. Abnormal Outdoor Unit Discrimination Method By Fan Operating Function This function is provided to forcedly operate the fan of the outdoor unit in which a check code occurred or the fan of the normal outdoor unit by the switch operation on the interface P.C. board in the header unit. To specify which one of the follower units connected to the system had problem, use this function for the system stop due to a follower unit problem (Check code [E28]).

  • Page 173: Manual Adjustment Function Of Outside Temperature (To) Sensor

    7-7-10. Manual Adjustment Function of Outside Temperature (TO) Sensor This function is provided to fix TO sensor value manually by the switch operation on the interface P.C. board in the outdoor unit. When the unit stops abnormally due to TO sensor failure, etc, an emergent operation is available by setting up the value manually to position near the current outside temperature.

  • Page 174: Confirmation Of The Check Code ( L02, L11, L13, L14 ) Occurred During Installation

    7-7-11. Confirmation of the check code ( L02, L11, L13, L14 ) occurred during installation Use this function to check for the check codes ( L02, L11, L13, L14 ) that may occur during installation. [Method to switch the check codes L02 display] (1) Set the rotary switches [SW01/SW02/SW03] on the interface P.C.

  • Page 175: Refrigerant Leakage Detection

    7-7-13. Refrigerant leakage detection The refrigerant leakage can be confirmed by using the switches on Interface P.C.board of the outdoor unit. If there is a leak, the location must be found in order to recover the refrigerant. After that, implement appropriate countermeasure and refill the refrigerant to its standard volume. Refrigerant leaks can be detected by comparing the Actual opening of PMV with the Calculated opening of PMV* during the operation.

  • Page 176: Monitor Function Of Remote Controller Switch

    7-7-14. Monitor Function of Remote Controller Switch Switching to the service monitor mode <Content> The sensor temperature or operation status of the remote controller, indoor unit, or the outdoor unit can be known by switching to the service monitor mode from the remote controller. [Procedure] <RBC-AWSU**>...
  • Page 177 Display Code No. Unit format Room temperature (Use to control) °C e l l °C °C l i o °C [0027]=27°C l i o °C l i o °C Indoor discharge air temperature (TF) *1 °C Indoor fan motor number of revolutions [1000]=1000rpm t l i Suction exchanger (TSA) *1...

  • Page 178: Before The Use Of Wave Tool Advance

    After confirmation, download/install the Wave Tool Advance Application (WTA App.) and USER GUIDE. Be sure to read the USER GUIDE before the use of this application. <Wave Tool Advance Support URL> https://www.toshiba-carrier.co.jp/global/appli/smms_wave_tool_advance/index.htm Notice WTA App. is not supported SMMS-e series. Please use the "SMMS Wave Tool" when using the SMMS-e series.

  • Page 179: Confirmation For Nfc Tag Communication

    For example; How to prohibit Test operation from WTA (If you need) Rotary switch Push SW 7-segment Steps Items display SW01 SW02 SW03 SW04 SW05 SW06 Change rotary switch position for Outdoor DN code setting dn.SEt Push SW04 for activate DN code Push dn.001 Change DN code Number to "dn.005"...

  • Page 180: Troubleshooting

    8. TROUBLESHOOTING 8-1. Overview (1) Before engaging in troubleshooting (a) Applicable models Super Heat Recovery Multi system (SHRM-u) models. (Indoor units: MM -UP , Outdoor units: MMY-MUP (b) Tools and measuring devices required • Screwdrivers (Philips, flat head), spanners, long-nose pliers, nipper, pin to push reset switch, etc.

  • Page 181: Troubleshooting Method

    8-2. Troubleshooting method The remote controllers (main remote controller and central remote controller) and the interface P.C. board of an outdoor unit have an LCD display (remote controller) or a 7-segment display (outdoor interface P.C. board) to display operational status. Using this self-diagnosis feature, the trouble site / trouble part may be identified in the event of a trouble by following the method described below.
  • Page 182 (Check code detected by remote controller) Check code Display of receiving unit Outdoor 7-segment display Indicator light block Description of Check code Typical fault site Remote control Operation Timer Ready Sub-code Flash No master remote control, Signals cannot be received from indoor unit; –...
  • Page 183 List of Check Codes (Outdoor Unit) (Check code detected by outdoor interface - typical examples) If "HELLO" is displayed on the outdoor 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 184 Check code Display of receiving unit Central Indicator light block Outdoor 7-segment display Typical problem site Description of Check code control or main remote Operation Timer Ready Sub-code controller Flash display 01: TS1 sensor Outdoor suction • Outdoor suction temperature sensor •...
  • Page 185 Check code Display of receiving unit Outdoor 7-segment display Central Indicator light block Description of Check code Typical problem site 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 186 (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 Check code control or main remote Operation Timer Ready Sub-code controller Flash...

  • Page 187: Troubleshooting Based On Information Displayed On Remote Controller

    8-3. Troubleshooting based on information displayed on remote controller When a trouble occurs in the air conditioner, the check code and the indoor unit number flash on the display of the remote controller. * The check code is only displayed during the operation.
  • Page 188 Using indoor unit indicators (receiving unit light block) (wireless type) To identify the check code, check the 7-segment display on the header unit. To check for check codes not displayed on the 7-segment display, consult the “List of Check Codes (Indoor Unit)” in “8-2. Troubleshooting method”. : Blinking (0.5 seconds) : Lighting : Goes off...
  • Page 189 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/TSA) trouble Alternate blinking Discharge temperature sensor (TF) trouble Discharge temperature sensor (TD1) trouble Operation Timer...
  • Page 190 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 191: Check Codes List

    8-4. Check Codes list For other types of outdoor units, refer to their own service manuals. Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Central Central control Continued Central control device is •...
  • Page 192 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code No. of indoor Dropping out of All stop Condition 1 • Check power supply to units from indoor unit All indoor unit initially indoor unit.
  • Page 193 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Remote Duplicated Stop of In two remote controller • Check remote controller controller master remote corresponding configuration (including settings. controller unit wireless), both controllers...
  • Page 194 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Outdooroutdoor All stop Signal cannot be transmitted • Check power supply to communication to other outdoor units for at outdoor units.
  • Page 195 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Indoor unit Indoor TCJ Stop of Sensor resistance is infinity • Check connection of TCJ sensor trouble corresponding or zero (open/short circuit). sensor connector and unit wiring.
  • Page 196 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Indoor unit Indoor TF Stop of Sensor resistance is infinity • Check connection of TF sensor trouble corresponding or zero (open/short circuit). sensor connector and unit wiring.
  • Page 197 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code 1∗: Compressor Compressor Compressor All stop Inverter current detection • Check power supply 1 side P.C. board breakdown circuit detects overcurrent voltage.
  • Page 198 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code 01: TK1 sensor Trouble in All stop Sensor resistance is infinity • Check connection of TK1 trouble temperature or zero (open/short circuit). sensor connector.
  • Page 199 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller detection Check Sub-code code FS unit Communiation FS unit not receiving signal • Check wiring between FS Stop of trouble from indoor unit(s) unit and indoor unit(s).
  • Page 200 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Duplicated All stop More than one indoor units • Check display on priority priority indoor have been set up as priority indoor unit.
  • Page 201 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code FS unit(s) Priority setting has not • Check indoor units All stop 02: Indoor setting been performed for indoor operation mode priority units units...
  • Page 202 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Detected indoor Indoor unit Indoor external Stop of • Indoor unit has been shut When external device is address interlock corresponding down due to external...
  • Page 203 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code 1∗: Compressor Compressor Heat sink All stop Temperature sensor built • Check outdoor fan system 1 side P.C. board overheating into IPM (TH) is overheated.
  • Page 204 Check code Location Outdoor 7-segment display Check code detection Description System status Check items (locations) condition(s) Controller Check detection Sub-code code • Check full-close operation 01: PMV1,2,3 Outdoor liquid All stop <During cooling operation> When system is in cooling of outdoor PMV1/2/3. side (Follower backflow operation, high pressure is...
  • Page 205 Check code Location Outdoor 7-segment display Check code detection Description System status Check items (locations) condition(s) Controller Check detection Sub-code code 01: TS condition Gas leak All stop Protective shutdown due to • Check for insufficiency in detection sustained suction refrigerant quantity.
  • Page 206 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code 0#: 4-way valves Abnormal refrigerating cycle • Check for failure in main 4-way valve All stop *Put in outdoor data is collected during body of 4-way valves.
  • Page 207 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Activation of All stop <During cooling operation> • Check for failure in Pd high-pressure Pd sensor detects pressure pressure sensor. protection equal to or greater than •...
  • Page 208 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code 1∗: Fan P.C. Fan INV. Outdoor fan All stop Protected operation of Fan • Check fan motor. board 1 P.C.
  • Page 209 ▼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. (3) Turn on the power supply and start cooling or heating operation.
  • Page 210 ▼How to Check Resistance of Compressor Winding (1) Turn off the power supply. (2) Remove compressor leads from the compressor P.C. board. (Be sure to remove all the leads.) (3) With each compressor, check the phase-to-phase winding resistances and winding-to-outdoor cabinet resistance using a multimeter.

  • Page 211: Diagnosis Procedure For Each Check Code

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  • Page 253: 7-Segment Display Function

    8-6. 7-Segment Display Function 7-segment display on outdoor unit (interface P.C. board) The interface control P.C. board features a 7-segment LED display designed to check operational status. Display items can be changed by changing the combination of the number settings of rotary switches provided on the P.C.
  • Page 254 Checking Procedure to Be Followed in Event of Abnormal Shutdown If the system is shut down due to a trouble in the outdoor unit, perform checks in the following steps: Open the panel of the outdoor unit and inspection window of the electric parts box, and check the 7-segment display.
  • Page 255 (1) Display of System Information (Displayed on Header Outdoor Unit Only) SW01 SW02 SW03 Display detail − − System capacity […8]~[60] : to HP No. of outdoor units A […1]~[…3] : 1 to 3 B […P] No. of indoor units connected / No. (1) [...
  • Page 256 (2) Display of Outdoor Unit Information (Displayed on Each Outdoor Unit) SW01 SW02 SW03 Display detail Check code data A Outdoor unit No.: [U1] to [U3] B If there is no check code, [U. ∗. ] is displayed. If there is check code, [U. ∗. err] ⇔ [OOO]. [ ([OOO] : Check code, [ ] : Sub-code) (The display switches alternately)
  • Page 257 (3) Display of Outdoor Cycle Data (Displayed at Each Outdoor Unit) Display detail SW01 SW02 SW03 Pd pressure (MPaG) is displayed in decimal format. Pd pressure data ∗. ∗ ∗ (MPaG : Approx. 10 times magnitude of kg/cm P d. ∗.
  • Page 258 (4) Display of Outdoor Cycle Data (Displayed at Header Unit) * This method is used when displaying follower unit information on the 7-segment display of the header unit. SW01 SW02 SW03 Display detail Trouble data [U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U3) B Check code is displayed (latest one only).
  • Page 259 (5) Display of Indoor Unit Information (Displayed on Header Unit Only) SW01 SW02 SW03 Display detail Indoor check code B No check code : [- - -] Indoor BUS communication signal B Upon receiving signal : [..1], Other times : [..] receiving status Indoor HP capacity ...

  • Page 260: Oil Level Judgment Display

    8-7. Oil Level Judgment Display The current compressor oil level judgment results can be accessed by setting the switches provided on the interface P.C. board of an outdoor unit. Perform the checks in accordance with the procedure described below. Operation Procedure (1) Start the operation.

  • Page 261: Smms-U Outdoor Interface P.c. Board Function Setting Change Table

    8-8. SHRM-u Outdoor Interface P.C. Board Function Setting Change Table 1. Switch/Function Setting Change SW No. Change contents bit1 Uh communication termination OFF: No termination resistance ON: With termination resistance resistance for central control SW100 DIP SW 2 bit Uv communication termination bit2 resistance between indoor and OFF: No termination resistance...
  • Page 262 Interface Board Switches position to be used in the Function setup switching table SW101 SW102 SW103 1 2 3 4 1 2 3 4 1 2 3 4 SW104 SW105 SW106 1 2 3 4 1 2 3 4 SW100 SW100 - 262 -...

  • Page 263: Leakage/Clogging Of Refrigerating Cycle Circuit

    8-9. Leakage/Clogging of Refrigerating Cycle Circuit List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part (MMY-MUP0801*, 1001*, 1201*, 1401*) Clogging Unit generating Location of Part Problem check code Detected problem and check code Symptom (Refer to next page) Outdoor PMV1, 2...

  • Page 264: Outdoor Unit

    Outdoor Unit Model: MMY-MUP0801*, 1001*, 1201*, 1401* Fan motor PMV1 Main heat exchanger PMV2 Sub heat exchanger Hot-gas heat exchanger SV5B 4WV3 4WV2 4WV1 仮 High-pressure sensor Low-pressure Oil separator sensor SV3D Accumulator High- pressure switch SV41 Subcool Heat Exchanger SV3F Compressor PMV4...
  • Page 265 List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part (MMY-MUP1601*, 1801*, 2001*) Clogging Location of Unit generating Part check code Detected problem and check code Symptom Problem (Refer to next page) Outdoor PMV1, 2, 3 Corresponding unit Activation of high-pressure protection Rise of pressure...
  • Page 266 Outdoor Unit Model: MMY-MUP1601*, 1801*, 2001* Fan motor Fan motor PMV1 Main heat exchanger L Main heat exchanger R Sub heat exchanger L Sub heat exchanger R PMV2 Hot-gas heat exchanger Hot-gas heat exchanger PMV3 SV5B 4WV3 4WV2 4WV1 High-pressure sensor 仮...
  • Page 267 List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part (MMY-MUP2201*, 2401*) Clogging Unit generating Location of Part check code Detected problem and check code Symptom Problem (Refer to next page) Outdoor PMV1, 2, 3 Corresponding unit Activation of high-pressure protection Rise of pressure...
  • Page 268 Outdoor Unit Model: MMY-MUP2201*, 2401* Fan motor Fan motor PMV1 Main heat exchanger L Main heat exchanger R Sub heat exchanger L Sub heat exchanger R PMV2 Hot-gas heat exchanger Hot-gas heat exchanger PMV3 SV5B 4WV3 4WV2 4WV1 仮 High-pressure sensor Low-pressure Oil separator...

  • Page 269: Sensor Characteristics

    8-10. Sensor Characteristics Outdoor Unit Temperature sensor characteristics Outdoor TS1, TS3, TE1, TE2, TE3, TL1, TL2, TL3 and TO sensors Temperature [°C] Resistance [kΩ] 101.7 76.3 57.7 44.0 33.8 Resistance 26.1 [kΩ] 20.4 (10 °C or below) Resistance 16.0 [kΩ] (10 °C or above) 13.0 10.0kΩ...
  • Page 270 Outdoor Unit Pressure sensor characteristics • Input/output wiring summary High pressure side (PD) Low pressure side (PS) Pin No. Input/output name Lead wire color Input/output name Lead wire color OUTPUT White — — — — OUTPUT White Black Black • Output voltage vs. pressure High pressure side (PD) Low pressure side (PS) 4.5V...
  • Page 271 Indoor TC1 sensor Temperature [°C] Resistance [kΩ] 98.3 73.7 55.8 42.6 32.8 Resistance Resistance [kΩ] [kΩ] 25.5 (10°C or beiow) (10°C or above) 20.0 15.7 12.5 10.0 Temperature [°C] Indoor TC2 and TCJ, TOA sensor Temperature [°C] Resistance [kΩ] 102.9 76.6 57.7 44.0...

  • Page 272: Pressure Sensor Output Check

    8-11. Pressure Sensor Output Check Outdoor Unit Pd sensor characteristics 0 to 4.15 MPa (0.5 to 4.73V output for 0 to 4.15 MPa) Voltage readings across pins 2 and 3 of CN501 on indoor unit main P.C. board (with negative-side probe of multimeter placed on pin 3) VOLT VOLT...
  • Page 273 Outdoor Unit PS sensor characteristics 0 to 2.24 MPa (0.5 to 5V output for 0 to 2.24 MPa) Voltage readings across pins 2 and 3 of CN500 on indoor unit main P.C. board (with negative-side probe of multimeter placed on pin 3) VOLT VOLT VOLT...

  • Page 274: Backup Operation (Emergency Operation)

    9. BACKUP OPERATION (EMERGENCY OPERATION) This product offers backup modes of operation to tide over certain emergency situations. If a trouble occurs in one of the compressors, it is possible to operate the system on an emergency basis by operating only the remaining compressor, (compressor backup operation).

  • Page 275: Compressor Backup Operation Setting

    9-2. Compressor Backup Operation Setting <Outline> If a failure occurs to one of the compressors installed in outdoor unit, follow the procedure described below to back up the failured compressor by using the remaining, normal compressor. Note: The backup operation of compressor cannot be done for MMY-MUP0801*, 1001*, 1201*, 1401*, 1601*, 1801*, 2001* because only one compressor is installed in these models.
  • Page 276 (3) Change the connection of wiring as shown in the below. Outdoor Unit Model: MMY-MUP2201*, 2401* 1. When compressor No.1 is failure : No change the connection of wiring 2. When compressor No.2 is failure : Connection of wiring is changed as shown below. Compressor P.C.board 1 CN21...

  • Page 277: Outdoor Unit Backup Operation Setting

    9-3. Outdoor Unit Backup Operation Setting <Outline> This product allows outdoor unit backup operation setting to be performed either at the header unit or a follower unit. If any of the failure modes specified below occurs to one of the outdoor units in a multi-outdoor unit system, proceed with outdoor unit backup operation.
  • Page 278 Uc (U5/U6) wiring treatment Fully close gas pipe service valve. Leave service valves of liquid fully open. (if there is leakage from outdoor PMV, fully close liquid pipe.) Interface P.C. board of header unit SW101 SW102 SW103 Setup of failed follower outdoor unit [Setup of header unit] 1 2 3 4 1 2 3 4...
  • Page 279 (6) Turn on the power supply to all the units connected to the system other than the failed follower unit. Determine what to do with the power supply to the failed follower unit in the following manner. <In case of failure in compressor, electrical part, P.C. board> Leave the power supply off.

  • Page 280: Header Outdoor Unit Backup Operation Setting (Failure Of Header Outdoor Unit)

    9-3-2. Header outdoor unit backup operation setting (failure of header outdoor unit) <Work procedure> (1) Turn off the power supply to all the units connected to the system at the source. [Setup of failed header outdoor unit] (2) Fully close the service valves of the HP/LP gas pipe and the LP gas pipe of the failed outdoor. (3) Leave the service valve of the liquid pipe fully open (to prevent refrigerant stagnation in the failed).
  • Page 281 (8) Set Bits 1 and 2 of SW100 on the interface P.C. board same as that of the failed header unit (terminator resistance setting). Set SW101 and SW102 Turn on Bit 3 of SW103. identically to failed header SW101 SW102 SW103 1 2 3 4 1 2 3 4...

  • Page 282: Cooling-Season Outdoor Unit Backup Operation Setting

    9-4. Cooling-Season Outdoor Unit Backup Operation Setting <Outline> Limited to summer and other situations where there is no need for heating operation, this function makes it possible to get backup operation up and running quickly without going through the normal setup procedure, regardless of which type of outdoor unit has failed, the header unit or a follower unit.

  • Page 283: Outdoor Unit Refrigerant Recovery Method

    10. OUTDOOR UNIT REFRIGERANT RECOVERY METHOD 10-1. Refrigerant Recovery from Troubled Outdoor Unit (Reclaim) This product supports refrigerant reclaim, a function which allows refrigerant to be recovered from an outdoor unit in need of repair using a normal outdoor unit in a system featuring multiple outdoor units. START 10.1.1 Note for refrigerant recovery operation Can troubled unit energized?
  • Page 284 (4) [rd] [… FF] will be displayed on the 7-segment display, and reclaim operation will start. * To put the operation on hold midway, turn off the power supply to all the outdoor units, or push SW05 on the interface P.C. board. (5) Approx.

  • Page 285: Refrigerant Recovery Procedure B (Case That The Troubled Outdoor Unit Does Not Turn On)

    10-1-3. Refrigerant recovery procedure B (Case that the troubled outdoor unit does not turn on) <Outline> If outdoor unit backup operation setting is performed, use an alternative refrigerant recovery procedure as described below, provided that the power cannot be turned on for the troubled outdoor unit. (Refrigerant will be recovered from the failed outdoor unit using the test cooling operation function.) Note: If the power cannot be turned on the troubled outdoor unit, the solenoid valves and PMVs of the unit cannot be turned on, so that it reduces the amount of recovered refrigerant compared to a standard...

  • Page 286: How To Operate System While Troubled Outdoor Unit Being Repaired

    10-2. How to Operate System While Troubled Outdoor Unit Being Repaired <Outline> After refrigerant is recovered from the troubled outdoor unit through a reclaim operation, the overall amount of refrigerant held by the system becomes excessive, and this makes it impossible to operate the remaining outdoor units even though they are not troubled.

  • Page 287: Work Procedure After Repair

    10-3. Work procedure after Repair When vacuuming in the repaired outdoor unit, follow the procedure described below. <Work procedure> (1) Follow the procedure below to fully open PMV 1, 2, 3, and 4 and turn off the outdoor unit within 2 minutes after the operation is completed.

  • Page 288: Replacing Compressors

    11. REPLACING COMPRESSORS 11-1. Compressor Replacement Procedure (Outline) START WARNING In situations such as indoor unit relocation and Is the outdoor unit the only one in the system? repairs, it is not possible to recover all the refrigerant held by the system in the outdoor units. It could cause a serious accident, such as blow out or Manually open Recover refrigerant...

  • Page 289: Replacement Of Compressors

    11-2. Replacement of Compressors <Checking color of oil in troubled compressor> • Lay the troubled compressor down, draw a small amount of oil via the oil equalization pipe, and check its color against color samples. • Determine the number of compressors to be replaced according to the Compressor color checking result.
  • Page 290 Model: MMY-MUP1601*, 1801* and 2001* For 16, 18, 20HP [When replacing troubled compressor only] <Measuring amount of oil in troubled compressor> Put the troubled compressor above the scale to measure the amount of oil. Amount of oil in troubled compressor: A [cc] = (Weight of compressor as it was dismantled (kg) - 42.6kg) x 1042 (Specific volume of oil: 1042 [cc/kg]) * The weight of the compressor without oil inside is 42.6 kg.
  • Page 291 Model: MMY-MUP2201* and 2401* For 22, 24HP [When replacing normal as well as troubled compressor] - applicable to <Remove the normal compressor> • Remove the normal compressor in the same way as the troubled compressor. Note: • Be sure to insulate the removed compressor leads using insulation tape, etc. WARNING When detaching a pipe by heating with a burner at brazed joint, take care as any oil left in the piping may burn in a momentary flash of fire when the brazing filler metal melts.
  • Page 292 <Installing compressor> • Install a compressor by following the dismantling procedure in reverse. Notes: • The tightening torque of the screws, used to fix the compressor’s lead wires, is 2.5 N•m. • The tightening torque of the hexagonal bolts, used to mount the compressor, is 19.6 N•m. •...

  • Page 293: Check Procedure To Search Cause Of Compressor Oil Shortage

    11-3. Check Procedure to Search Cause of Compressor Oil Shortage Is the wiring of the TK1 sensor and TK2 Correct the miswiring or connection. sensor of the unit with the replaced TK1: CN502 TK2: CN380 compressor correct? Are the characteristics of the TK1 and TK2 sensors of the unit Replace the troubled sensor.
  • Page 294 <MMY-MUP0801*, 1001*, 1201*, 1401*> Check items and procedures to follow when checking oil circuit with compressor(s) disconnected Check item Location Procedure 1) With PMV 1, 2 and 4 fully closed, apply pressure to the check joint of liquid pipe with nitrogen, and check the pressure at the check joint of discharge pipe.
  • Page 295 <MMY-MUP1601*, 1801*, 2001*> Check items and procedures to follow when checking oil circuit with compressor(s) disconnected Check item Location Procedure 1) With PMV 1, 2, 3 and 4 fully closed, apply pressure to the check joint of liquid pipe with nitrogen, and check the pressure at the check joint of discharge pipe.
  • Page 296 <MMY-MUP2201*, 2401*> Check items and procedures to follow when checking oil circuit with compressor(s) disconnected Check item Location Procedure 1) With PMV 1, 2, 3 and 4 fully closed, apply pressure to the check joint of liquid pipe with nitrogen, and check the pressure at the check joint of discharge pipe.

  • Page 297: Outdoor Unit Parts Replacement Methods

    12. OUTDOOR UNIT PARTS REPLACEMENT METHODS Part Work procedure Remarks Cabinet WARNING NFC holder Insert each NFC holder Wear a pair of gloves. claw of NFC holder into Otherwise, you will risk an injury involving a replacement each squre hole part or some other object.
  • Page 298 Part Work procedure Remarks WARNING Propeller 2) Top plate fan and Wear a pair of gloves. Fan motor Otherwise, you will risk an injury involving a replacement part or some other object. 1. Detachment 1) Stop the air conditioner operation, and turn off the circuit breaker.
  • Page 299 Part Work procedure Remarks WARNING Heat Discharge cabinet M5 x 10, 8 pcs exchanger Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. < 8-14HP > 1. Detachment 1) Remove No. 1 Cabinet, No.2 propeller fan/fan motor, No.
  • Page 300 Part Work procedure Remarks WARNING Heat 4 x 14, 2 pcs exchanger Wear a pair of gloves. Discharge cabinet Otherwise, you will risk an injury involving a replacement M5 x 10, 12 pcs part or some other object. < 16-24HP > 1.
  • Page 301 Part Work procedure Remarks Heat 3) Cut the pipes at the heat exchanger (Fig.21, Fig.22 exchanger < 8-14HP > < 16-24HP > (1) 1) Header pipe at the gas side (Main heat exchanger) (1) 1) Header pipe at the gas side (Main heat exchanger) (2) 2) Distributor at the liquid side (Main heat exchanger)
  • Page 302 Part Work procedure Remarks WARNING Inverter assembly Wear a pair of gloves. 5) Screw Otherwise, you will risk an injury involving a replacement part or some other object. 5) Screw 1. Detachment 1) Stop the air conditioner operation, and turn off the circuit breaker.
  • Page 303 Part Work procedure Remarks 2. Attachment Inverter assembly 1) Carry out installation by following reverse procedure in (continued) the detachment 1) to 7). NOTE 1 Apply thickly the heat sink grease to the refrigerant cooling heat sink and install the inverter box. Return the wires to the original state.
  • Page 304 Part Work procedure Remarks 1. Detachment Waterproof 3) Cut the binding band cover 1) Stop the air conditioner operation, and turn off the assembly circuit breaker. 2) Remove the inverter assembly. (Refer to the detachment for No.4 inverter assembly.) 3) Remove the binding band at the upper of the refrigerant cooling heat sink and the fixing rubber at the lower.
  • Page 305 Part Work procedure Remarks WARNING Reactor 3) Reactor box assembly Wear a pair of gloves. < 6-14HP > Otherwise, you will risk an injury involving a replacement part or some other object. 1. Detachment 1) Stop the air conditioner operation, and turn off the circuit breaker.
  • Page 306 Part Work procedure Remarks WARNING Reactor assembly 3) Fixed plate of reactor box Wear a pair of gloves. < 16-24HP > Otherwise, you will risk an injury involving a replacement part or some other object. 1. Detachment 1) Stop the air conditioner operation, and turn off the circuit breaker.
  • Page 307 Part Work procedure Remarks WARNING Compressor < 8-14HP > Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. Top cover Side cover Remove the cover while lifting it diagonally Front cover 1.
  • Page 308 Part Work procedure Remarks 2. Attachment Compressor (continued) 1) Carry out installation by following reverse procedure in the detachment 1) to 4). 2) Install the compressor and braze the pipes, and then install each wire around the compressor. (Comp.lead, Case heater, Temperature sensor (TD, TK)) Exchange a comp.
  • Page 309 Part Work procedure Remarks 4-way WARNING valve - Wear a pair of gloves. detachment/ Otherwise, you will risk an injury involving a replacement attachment part or some other object. 8-14HP 1.Detachment 1)Carry out work of No. 1 Cabinet and No.4 Inverter assembly. 2)Disconnect wires around 4-way valve or move them away from parts to be brazed to prevent them from being fired while brazing.
  • Page 310 Part Work procedure Remarks 4-way WARNING valve - Wear a pair of gloves. detachment/ attachment Otherwise, you will risk an injury involving a replacement (continued) part or some other object. 8-14HP 2.Attachment 1)Brazing the diverted piping connected to the top and bottom of the 4-way valves (service part). 2)Attach each 4-way valve assembly in the outdoor unit.
  • Page 311 Part Work procedure Remarks 4-way WARNING valve - Wear a pair of gloves. detachment/ Otherwise, you will risk an injury involving a replacement attachment part or some other object. 16-24HP 1.Detachment 1)Carry out work of No. 1 Cabinet and No.4 Inverter assembly. 2)Disconnect wires around 4-way valve or move them away from parts to be brazed to prevent them from being fired while brazing.
  • Page 312 Part Work procedure Remarks 4-way WARNING valve - Wear a pair of gloves. detachment/ attachment Otherwise, you will risk an injury involving a replacement (continued) part or some other object. 16-24HP 2.Attachment 1)Brazing the diverted piping connected to the top and bottom of the 4-way valves (service part). 2)Attach each 4-way valve assembly in the outdoor unit.
  • Page 313 Part Work procedure Remarks Accumulator- WARNING detachment/ Wear a pair of gloves. attachment Otherwise, you will risk an injury involving a replacement 8-14HP part or some other object. 1.Detachment 1)1)Carry out work of No. 1 Cabinet and No.4 Inverter assembly. 2)Disconnect the wire, pipe fixing rubber, and pipe cover near the pipe to be brazed to prevent burning during brazing.
  • Page 314 Part Work procedure Remarks Accumulator- WARNING detachment/ Wear a pair of gloves. attachment Otherwise, you will risk an injury involving a replacement 16-24HP part or some other object. 1.Detachment 1)1)Carry out work of No. 1 Cabinet and No.4 Inverter assembly. 2)Disconnect the wire, pipe fixing rubber, and pipe cover near the pipe to be brazed to prevent burning during brazing.

  • Page 315: Board Replacement Procedures

    13. P.C. BOARD REPLACEMENT PROCEDURES 13-1. Replacement of outdoor P.C. board & Inverter Parts 13-1-1. List of service parts (Inverter) Parts code Description Applicable model Parts Product code Specifications 43T60437 Power supply terminal block JXO-6004 TERMINAL (75A) AC600V/75A,4P Noise Filter P.C. board (1) MCC-1748 ASM-S-PCB (N/F) —...

  • Page 316: Configuration Of Inverter Assembly

    13-1-2. Configuration of inverter assembly MMY-MUP0801* MMY-MUP1001* MMY-MUP1201* The Interface P.C. board sub-assembly Interface P.C. board MMY-MUP1401* (MCC-1747) Remove the Interface P.C. board sub-assembly Inverter P.C. board for fan (MCC-1734) Thermistor Magnet Contactor Noise Filter P.C. board(1) (MCC-1748) Communication terminal block Inverter P.C.
  • Page 317 MMY-MUP1601* MMY-MUP1801* Interface P.C. board MMY-MUP2001* (MCC-1747) Inverter P.C. board for fan 2 The Interface P.C. board sub-assembly (MCC-1734) Remove the Interface P.C. board sub-assembly Inverter P.C. board for fan 1 (MCC-1734) Thermistor Magnet Contactor Noise Filter P.C. board(2) (MCC-1748) Line Filter Communication terminal block Inverter P.C.
  • Page 318 MMY-MUP2201* Interface P.C. board MMY-MUP2401* (MCC-1747) The Interface P.C.B. sub-assembly Inverter P.C. board for fan 2 (MCC-1734) Remove the Interface P.C.B. sub-assembly Inverter P.C. board for fan 1 (MCC-1734) Magnet Contactor 2 Thermistor 2 Thermistor 1 Magnet Contactor 1 Noise Filter P.C. board(2) (MCC-1748) Line Filter Communication terminal block...

  • Page 319: Interface P.c. Board (Mcc-1747) Replacement Procedure

    13-1-3. Interface P.C. Board (MCC-1747) Replacement Procedure Target model 43TNV345: ALL models This Interface service P.C. board is commonly installed in different models. After replacing the service board, Please change the model. Included items: ①MCC-1747 : 1pcs ②Spacer : 4pcs ③Spacer : 2pcs ④Support : 1pcs ⑤Bush : 3pcs...
  • Page 320 “L10: Outdoor capacity not set” check code is displayed on the 7-segment display. (13) Perform a model change by the following flow. By completing this procedure, it is restored to the state before a model setup and a setup of the outdoor DN code (O.DN) exchanging.
  • Page 321 Appendix 1 Data backup 1) The Outdoor DN code (O.DN) data that includes the model settings from the interface P.C. board will automatically be backed up to the Inverter P.C. board for Compressor and Inverter P.C. board for fan. Data backup Interface P.C.

  • Page 322: Outdoor Unit

    Appendix 3 Model settings for case that data cannot be recovered The model settings are unset on the service P.C. board, and in an unset state, the check code [L10] will be displayed and operation will not be available. The model settings will be recovered with the data recovery, but if data recovery cannot be performed, set the Outdoor Unit Function Code (O.DN) [003] manually according to the model name of the outdoor unit.
  • Page 323 Replacement Steps: (1) Turn off the power supply of the outdoor unit and wait at least 5 minutes for the capacitor to discharge. : 8pcs) which were connected to the Compressor P.C. board Remove all of the connector and screw terminal ( (Remove the connectors by pulling the connector body.

  • Page 324: Fan-Motor P.c.board (Mcc-1734) Replacement Procedure

    13-1-4. Fan-Motor P.C. Board (MCC-1734) Replacement Procedure This board is commonly installed in different models. Set the DIP switch (SW800) settings of the service board to match as before replacement. Included items: ① MCC-1734 : 1pcs ② Spacer : 4pcs Fan-motor P.C.

  • Page 325: Noise Filter P.c. Board (Mcc-1749) Replacement Procedure

    13-1-5. Noise Filter P.C. Board 1 (MCC-1748) Replacement Procedure 43T6W888: MMY-MUP0801*/1001*/1201*/1401* Subject part Included item: MCC-1748 : 1pcs Spacer : 4pcs Spacer : 2pcs Bush : 6pcs Noise Filter P.C. board (43T6W888) Replacement Steps: (1) Turn off the power supply of the outdoor Screw Spacer Screw...

  • Page 326: Noise Filter P.c. Board (Mcc-1749) Replacement Procedure

    13-1-6. Noise Filter P.C. Board 2 (MCC-1748) Replacement Procedure 43T6W889: MMY-MUP1601*/1801*/2001*/2201/*2401* Subject part Included item: MCC-1748 : 1pcs Spacer : 4pcs Spacer : 2pcs Bush : 6pcs Noise Filter P.C. board Replacement Steps: (43T6W889) Turn off the power supply of the outdoor Push unit and wait at least 5 minutes for the Lock pin...

  • Page 327: Fs Unit Parts Replacement Methods

    14. FS UNIT PARTS REPLACEMENT METHODS 14-1. Flow Selector unit Multi-port type Part Work procedure Remarks Electrical control ⚠︎ Screws WARNING box cover (upper side) ―――――――――――――――― ・Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. ・Stop the power supply of the air conditioner and turn off switch of the power supply breaker.
  • Page 328 Part Work procedure Remarks Unit 5-8 (*FUW8PE) / (*FUW12PE) Card edge spacer CN04: Earth wire (Faston tab) CN67: Power supply wires (Black) CN200: Communication wire (Terminal block) CN309: Power supply wires (Yellow) CN400: Communication wire (Terminal block) CN580: Communication wire (Yellow) CN581: Communication wire (Yellow) CN602: PMV-S5 (Blue) MCC-1770...

  • Page 329: Work Procedure

    Part Work procedure Remarks 2 Attachment SW01 (Factory setting) 1) Fix the control P.C. board to the card edge spacers. (4 places) 1 2 3 4 2) Connect the connectors disconnected in item 1-2) as before. For connectors, check there is no missing or contact failure.
  • Page 330 Part Work procedure Remarks Terminal 1. Detachment 1) Perform work of procedure 1-1 Detach- ment. (Electrical control box cover) Remove 2) Remove the wires from the terminal. from the terminal. 3) Remove the screws fixing the terminal. Screws (M4 x 14, 2 pcs) 2 Attachment 1) Fix the terminal with screws as before.
  • Page 331 Part Work procedure Remarks 1. Detachment Coil-PMV Wire clamp 1) Perform work of procedure 1. -1) (Electrical Binding band control box cover) and 4. -1) (Top plate). 2) Cut the binding band as appropriate and remove the PMV wire from the wire clamp. 3) Disconnect the PMV wire connector from the control P.C.

  • Page 332: Flow Selector Unit Single-Port Type

    14-2. Flow Selector unit Single-port type Part Work procedure Remarks ⚠︎ Electrical control WARNING box cover ―――――――――――――――― ・Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. ・Stop the power supply of the air conditioner and turn off switch of the power supply breaker.
  • Page 333 Part Work procedure Remarks 2 Attachment 1) Fix the control P.C. board to the card edge spacers. (4 places) 2) Connect the connectors disconnected in item 1-2) as before. For connectors, check there is no missing or contact failure. The lead wire should be Lead wire wired so as not to touch the cement resistance R03.
  • Page 334 Part Work procedure Remarks Terminal 1. Detachment 1) Perform work of procedure 1-1 Detachment. Remove from the (Electrical control box cover) terminal. 2) Remove the wires from the terminal. 3) Remove the screws fixing the terminal. (M4 x 14, 2 pcs) 2 Attachment 1) Fix the terminal with screws as before.
  • Page 335 Part Work procedure Remarks 1. Detachment Coil-PMV Wire clamp 1) Perform work of procedure 1. -1) (Electrical control box cover) and 4. -1) (Top plate). 2) Remove the PMV wire from the wire clamp as appropriate. 3) Disconnect the PMV wire connector from the control P.C.
  • Page 336 Part Work procedure Remarks Before the work, be sure to recover the BODY-SERVE Screws refrigerant of outdoor unit into cylinders or another unit connected to the same system. Electrical control box (Refer to the chapter "Refrigerant Recovery 1. Detachment 1) Remove connecting pipes from the Flow Hanging bracket Selector unit...

  • Page 337: Exploded Diagram/Parts List

    15. EXPLODED DIAGRAM/PARTS LIST 15-1. Outdoor unit MMY-MUP0801FT8(J)P*, MMY-MUP1001FT8(J)P*, MMY-MUP1201FT8(J)P*, MMY-MUP1401FT8(J)P* - 337 -...
  • Page 338 MMY-MUP0801FT8(J)P*, MMY-MUP1001FT8(J)P*, MMY-MUP1201FT8(J)P*, MMY-MUP1401FT8(J)P* 045 050 063 047 051 063 037 039 051 052 063 038 040 047 052 047 052 063 038 040 045 052 063 049 050 057 058 032 036 031 034 030 033 047 052 - 338 -...
  • Page 339 MMY-MUP0801FT8(J)P*, MMY-MUP1001FT8(J)P*, MMY-MUP1201FT8(J)P*, MMY-MUP1401FT8(J)P* Fan motor PMV1 Main heat exchanger Sub heat exchanger PMV2 Hot-gas heat exchanger φ3.0*500L SV5B 4WV3 4WV2 4WV1 High- pressure sensor Low-pressure φ0.8*1600L sensor φ1.0*500L SV3D High- pressure switch SV41 Subcool Heat Exchanger SV3F φ0.8*1800L PMV4 Liquid side HP/LP gas side Suction gas side...
  • Page 340 MMY-MUP1601FT8(J)P*, MMY-MUP1801FT8(J)P*, MMY-MUP2001FT8(J)P* - 340 -...
  • Page 341 MMY-MUP1601FT8(J)P*, MMY-MUP1801FT8(J)P*, MMY-MUP2001FT8(J)P* 045 050 063 046 052 063 037 039 046 051 063 053 063 046 048 030 033 038 040 028 029 031 035 031 034 037 039 048 052 024 046 032 036 (Back side of valve fixing plate) - 341 -...
  • Page 342 MMY-MUP1601FT8(J)P*, MMY-MUP1801FT8(J)P*, MMY-MUP2001FT8(J)P* Fan 1 Fan 2 only Fan motor Fan motor MMY-MUP1201F* 066 067 except MMY-MUP1201F* Left side Main heat exchanger PMV1 Right side Main heat exchanger Left side Sub heat exchanger PMV2 Right side Sub heat exchanger Hot-gas heat exchanger Hot-gas heat exchanger SV5B PMV3...
  • Page 343 MMY-MUP2201FT8(J)P*, MMY-MUP2401FT8(J)P* - 343 -...
  • Page 344 MMY-MUP2201FT8(J)P*, MMY-MUP2401FT8(J)P* 047 051 063 046 052 063 048 052 046 048 030 033 038 040 045 050 063 028 029 031 035 031 034 045 052 063 037 039 032 036 (Back side of valve fixing plate) - 344 -...
  • Page 345 MMY-MUP2201FT8(J)P*, MMY-MUP2401FT8(J)P* Fan 1 Fan 2 Fan motor Fan motor Left side Main heat exchanger PMV1 Right side Main heat exchanger Left side Sub heat exchanger PMV2 Right side Sub heat exchanger Hot-gas heat exchanger Hot-gas heat exchanger SV5B PMV3 4WV3 4WV2 4WV1...
  • Page 346 Q'ty/Set Location MMY-MUP Part No. Description 0801FT8* 1001FT8* 1201FT8* 1401FT8* 1601FT8* 1801FT8* 2001FT8* 2201FT8* 2401FT8* 43T20341 FAN, PROPELLER 43T20359 FAN, PROPELLER 43T19374 BELLMOUTH 43T19375 BELLMOUTH 43T19376 BELLMOUTH,COVER 43T19377 BELLMOUTH,COVER 43T20360 MOTOR,FAN,DC530-620V,2200L 43T00817 MOTOR,BASE 43T00913 CABINET ASSY, SIDE, UP 43T00812 CABINET,FRONT,UP 43T00819 CABINET,FRONT,UP 43T00914...
  • Page 347 LEAD ASSY,COMPRESSOR 43T55375 FILTER,NOISE 43T50424 SENSOR,TO 43T50430 SENSOR,SERVICE 43T50403 SENSOR ASSY,TD1,TK1 43T50404 SENSOR ASSY,TD2,TK2 43T50405 SENSOR ASSY,TE1,TE2,TG1,TG2 43T50406 SENSOR ASSY,TE3,TG3 43T50407 SENSOR ASSY,TL1,TL2,TL3,TS1,TS3 43T57316 HEATER,CASE,ASSY,29W/240V,2200L 43T57319 HEATER,CASE,ASSY,29W/240V,2600L 43T57317 HEATER,CASE,ASSY,29W/240V,1900L 43T46567 ASM-S-SUP-(BV) 43149548 LUBRICANT OIL, NISSRKI 43T01375 MARK, TOSHIBA - 347 -...

  • Page 348: Inverter Assembly

    Inverter Assembly Model: MMY-MUP0801*, 1001*, 1201*, 1401* The Interface P.C.B.sub-assembly CN101 CN800 IC300 CN801 CN02 IC800 SW800 CN301 CN01 CN400 CN102 SW04 SW05 SW06 CN21 CN22 CN23 SW01 SW02 SW03 T101 1 2 3 4 1 2 3 4 SW104 SW105 SW106 1 2 3 4 1 2 3 4 SW100...
  • Page 349 Inverter Assembly Model : MMY-MUP1601*, 1801*, 2001* The Interface P.C.B.sub-assembly CN101 CN800 IC300 CN801 CN02 IC800 SW800 CN301 CN01 CN400 CN02 IC800 CN24 SW800 CN01 CN102 SW04 SW05 SW06 CN21 CN22 CN23 SW01 SW02 SW03 T101 1 2 3 4 1 2 3 4 SW104 SW105 SW106 1 2 3 4...
  • Page 350 Inverter Assembly Model : MMY-MUP2201*, 2401* The Interface P.C.B.sub-assembly CN101 CN800 IC300 CN801 CN02 IC800 SW800 CN301 CN01 CN800 IC300 CN101 CN400 CN801 IC800 CN02 SW800 CN24 CN301 CN01 CN102 SW04 SW05 SW06 T601 CN03 CN21 CN22 CN23 DB01 CN02 SW01 SW02 SW03...

  • Page 351: Flow Selector Unit Multi-Port Type

    15-2. Flow Selector unit Multi-port type Model: RBM-YP1801FUW4PE, RBM-YP1801FUW8PE, RBM-YP1801FUW12PE, RBM-YP1801* Location Part No. Description FUW4PE FUW8PE FUW12PE 43TN9649 PC BOARD ASSY, MCC-1770 43T46546 COIL, PMV, PAM-MD12TF-305 43T46547 COIL, PMV, PAM-MD12TF-306 43T60592 SERV-TERMINAL 43T96310 BUSHING 43T96313 BUSHING - 351 -...

  • Page 352: Flow Selector Unit Single-Port Type

    15-3. Flow Selector unit Single-port type Model: RBM-YP1121FUVPE, RBM-YP1801FUVPE, RBM-YP2801FUVPE RBM-YP****FUVPE Location Part No. Description 1121 1801 2801 43TN9650 PC BOARD ASSY, MCC-1771 43T46546 COIL, PMV, PAM-MD12TF-305 43T46547 COIL, PMV, PAM-MD12TF-306 43T60592 SERV-TERMINAL 43T96310 BUSHING 43T00943 BODY ASSY, SERVICE 43T00944 BODY ASSY, SERVICE 43T96309 BUSHING...
  • Page 353 CARRIER AIR CONDITIONING (THAILAND) CO., LTD. 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANGPATHUMTHANI, PATHUMTHANI 12000, THAILAND...

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