Page 1 FILE NO. SVM-22072-1 AIR CONDITIONER (MULTI TYPE) SERVICE MANUAL < Super Heat Recovery Multi System SHRM ADVANCE > Outdoor MMY-SUG0801MT8(J)P-E MMY-SUG0801MT8P-A MMY-SUG1001MT8(J)P-E MMY-SUG1001MT8P-A MMY-SUG1201MT8(J)P-E MMY-SUG1201MT8P-A MMY-SUG1401MT8(J)P-E MMY-SUG1401MT8P-A MMY-SUG1601MT8(J)P-E MMY-SUG1601MT8P-A MMY-SUG1801MT8P-A MMY-SUG1801MT8(J)P-E MMY-SUG2001MT8P-A MMY-SUG2001MT8(J)P-E MMY-SUG2201MT8P-A MMY-SUG2201MT8(J)P-E MMY-SUG2401MT8P-A MMY-SUG2401MT8(J)P-E Revised on May, 2023...
Page 2: Table Of Contents
CONTENTS SAFETY CAUTION ..................... About refrigerant R32 ....................About refrigerant R32 ....................1. WIRING DIAGRAMS ....................2. PARTS RATING ...................... 2-1. Outdoor Unit (50Hz model: MMY-SUG***1MT8*) ............. 2- 1-1. Winding resistance of outdoor unit main parts ............2-2 Inverter Assembly ......................2-3.
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 8- 6. 7-Segment Display Function ................... 8- 7. Oil Level Judgment Display ..................... 8- 8. SHRM-A Outdoor Interface P.C. Board Function Setting Change Table ...... 8- 9. Sensor Characteristics ...................... 8- 10. Pressure Sensor Output Check ..................8- 11. System operation when the Leak Detector detects refrigerant leak....... 364 9.
Page 5 This service manual provides relevant explanations about new outdoor unit (SHRM ADVANCE). Please refer to the following service manuals for each indoor units. Model name SVM File No. <4-Way Cassette Type> MMU-UP***1HP-E/-TR　(Made in Thailand model) SVM-20095 A10-2004 MMU-UP***1H-E/-TR　(Made in Japan model) <Compact 4-Way Cassette Type>...
Page 6: Safety Caution
• The qualified service person is a person who installs, repairs, maintains, relocates and removes the air conditioners made by Toshiba Carrier Corporation. He or she has been trained to install, repair, maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation...
Page 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.
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Page 9 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 Toshiba Carrier (Thailand) Co., Ltd. Manufacturer: 144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road, Tambol Bangkadi, Amphur Muang, Pathumthani 12000, Thailand TOSHIBA CARRIER EUROPE S.A.S TCF holder: Route de Thil 01120 Montluel FRANCE Hereby declares that the machinery described below:...
Page 15 Declaration of Conformity Toshiba Carrier (Thailand) Co., Ltd. Manufacturer: 144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road, Tambol Bangkadi, Amphur Muang, Pathumthani 12000, Thailand TOSHIBA CARRIER UK Ltd. TCF holder: Porsham Close Belliver Industrial Estate Roborough Plymouth Devon...
Page 16 Specifications Sound power level (dBA) Model Weight (kg) Cooling Heating MMY-SUG0801MT8(J)P-E MMY-SUG1001MT8(J)P-E MMY-SUG1201MT8(J)P-E MMY-SUG1401MT8(J)P-E MMY-SUG1601MT8(J)P-E MMY-SUG1801MT8(J)P-E MMY-SUG2001MT8(J)P-E MMY-SUG2201MT8(J)P-E MMY-SUG2401MT8(J)P-E Sound power level (dBA) Model Weight (kg) Cooling Heating MMY-SUG0801MT8P-A MMY-SUG1001MT8P-A MMY-SUG1201MT8P-A MMY-SUG1401MT8P-A MMY-SUG1601MT8P-A MMY-SUG1801MT8P-A MMY-SUG2001MT8P-A MMY-SUG2201MT8P-A MMY-SUG2401MT8P-A Carrying in the outdoor unit &$87,21 +DQGOH WKH RXWGRRU XQLW FDUHIXOO\ REVHUYLQJ WKH IROORZLQJ LWHPV ‡...
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-SUG0801* MMY-SUG1001* MMY-SUG1201* MMY-SUG1401* MMY-SUG1601* MMY-SUG1801* MMY-SUG2001* MMY-SUG2201* MMY-SUG2401* - 17 -...
Page 18 (Unit : mm) Flow Selector unit Multi-port type (Unit external dimension) (Hanging bolt pitch) RBM-Y1801*** A (mm) B (mm) X (mm) Y (mm) Z (mm) Weight (kg) FU4PE FU8PE FU12PE Flow Selector unit Single-port type (Unit external dimension) (Hanging bolt pitch) RBM-*** X (mm) Y (mm)
Page 19 FLOW SELECTOR UNIT, SHUT-OFF VALVE UNIT INSTALLATION SPACE Flow Selector unit Multi-port type (Unit : mm) 600 or more Bolt size : M10 or Φ3/8 Check port (field supply) Control Box 100 or more Service hole Service hole (FU12PE only) 550 or more or more 100 or more...
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Page 21 Adding 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 003 005 007 008 009 010 012 014 015 018 020 024 027 030 036 048 056 072 096 rank Capacity code 1.1 1.25 1.5 2.25 2.5 (Equivalent to HP) Corrective amount of...
Page 23: About Refrigerant R32
About refrigerant R32 This air conditioner adopts a new HFC type refrigerant (R32) which does not deplete the ozone layer. 1. Safety Caution Concerned to Refrigerant R32 Be sure that water, dust, the former refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with refrigerant R32 during installation work or service work.
Page 24 <Caution items> 1) The opposite side dimension of the air-conditioner’s flared nut using R32 and the shape of the charge port are the same as those of R410A. 2) Be careful not to charge refrigerant by mistake. Should the different type of refrigerant be mixed, be sure to recharge the refrigerant.
Page 25 4. Tools : R410A tools available : Partly unavailable, : R410A tools unavailable Installation/service tools Applicability to R32 air Applicability to R22 air conditioner or not conditioner or not Tools / Equipment specification 1 Flare tool Clutch type Pipe flaring Copper pipe gauge for Flaring by —...
Page 26 Airtightness test After the refrigerant piping has been ﬁnished, execute an airtight test. For an airtight test, connect a nitrogen gas canister as shown in the ﬁgure on this page and apply pressure. • Be sure to apply pressure from the service ports of the packed valves (or ball valve) at the liquid side and (HP/LP, Suction) gas side.
Page 27 Able to detect a serious leakage 1. Apply pressure 0.3 MPa (3.0 kg/cm 2 G) for 5 minutes or more. 2. Apply pressure 1.5 MPa (15 kg/cm 2 G) for 5 minutes or more. Available to detect slow leakage 3. Apply pressure 4.15 MPa (42.3 kg/cm 2 G) for approx. 24 hours. •...
Page 28 Vacuum drying • Before and during installation, do NOT turn on the power until vacuuming and refrigerant charging are completed. • If the power is turned on during vacuuming or refrigerant charging, do NOT turn off the power until the work is completed.
Page 29 5. Safety precautions related to regulations on Installation and Service. Make sure installation, servicing, maintenance and repair comply with instructions from TOSHIBA and with applicable legislation (for example, national gas regulation) and are executed only by authorized people. These safety cautions describe important matters concerning safety to prevent injury to users or other people and damages to property.
Page 30 • Piping in refrigerating systems shall be so designed and installed to minimize the likelihood hydraulic shock damaging the system. • Solenoid valves shall be correctly positioned in the piping to avoid hydraulic shock. • Install the system according to Installation Manual and avoid the likelihood hydraulic shock damaging the system.
Page 31 • Connect both the air inlet and outlet of the duct directly to the same room. • Do not use a space such as a false ceiling as the air inlet or the outlet of the duct. • The position where the safety shut-off valve can be installed differs depending on the setting of safety measures.
Page 32 (The examples for safety device installations) The location of the leak detector varies depending on the safety system and the room. Incorrect Correct Case Install the Leak Detector in the same room as the connected indoor unit. FS-S FS-S FS-S FS-S Group setting of indoor unit across FS unit (or Shut-off Valve unit) is not possible.
Page 33 Information on servicing 1. Check to the area • Prior to begging work on systems containing flammable ignition is minimized. For repair to the refrigerating system, the precautions in item 2 to 6 shall be complied with prior to conducting work on the system. 2.
Page 34 - The charge size is in accordance with the room size within which the refrigerant containing parts are installed. - The ventilation machinery and outlets are operating adequately and are not obstructed. - If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence of refrigerant.
Page 35 13. Detection of flammable refrigerants • Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks. • A halide torch (or any other detector using a naked flame) shall not be used. •...
Page 36 16. Charging procedures • In addition to conventional charging procedures, the following requirements shall be followed. - Ensure that contamination of different refrigerants does not occur when using charging equipment. - Hoses or lines shall be as short as possible to minimize the amount of refrigerant contained in them.
Page 37 19. Recovery • When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely. • When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. •...
Page 38 Communication type, model names and the maximum number of connectable units Only TU2C-LINK can be used for the communication specifications of this air conditioner. U series and SHRM Advance are compatible with TU2C-LINK. For the outdoor/indoor model names such as each unit or remote controllers, refer to the following table.
Page 39 Switch HP/HR settings SHRM Advance can switch between Heat Pump (HP) and Heat Recovery (HR). (1) HP/HR setting can be changed by switching SW104 bit1. (2) For refrigerant piping installation for each HP/HR setting, carry out the installation according to the attached Installation Manual.
Page 40: Wiring Diagrams
1.WIRING DIAGRAMS 8, 10, 12, 14HP Model: MMY-SUG0801*, SUG1001*, SUG1201*, SUG1401* - 40 -...
Page 41 16, 18HP Model: MMY-SUG1601*, SUG1801* - 41 -...
Page 42 20, 22, 24HP Model: MMY-SUG2001*, SUG2201*, SUG2401* - 42 -...
Page 43 - 43 -...
Page 44 - 44 -...
Page 45 1-1. Flow Selector unit Multi-port type Model: RBM-Y1801FU4PE, RBM-Y1801FU8PE, RBM-Y1801FU12PE - 45 -...
Page 46 1-2. Flow Selector unit Single-port type, Shut-off Valve unit Model: RBM-Y1121FUPE, RBM-Y1801FUPE, RBM-Y2801FUPE RBM-SV1121HUPE, RBM-SV1801HUPE, RBM-SV6701HUPE 1 2 3 4 5 1 2 3 4 5 - 46 -...
Page 47: Parts Rating
2. PARTS RATING 2-1. Outdoor Unit (50Hz model: MMY-SUG***1MT8*) Part name Model Specifications 〇 Compressor LX771A3TJB-20M Output: 4.72kW×1 〇 Compressor LX771A3TJB-20M Output: 6.35kW×1 〇 Compressor LX771A3TJB-20M Output: 8.40kW×1 〇 Compressor LX771A3TJB-20M Output: 11.5kW×1 〇 Compressor RX423A3TJB-20M Output: 5.60kW×2 〇 Compressor RX423A3TJB-20M Output: 6.85kW×2 〇...
Page 48: Winding Resistance Of Outdoor Unit Main Parts
2-1-1. Winding resistance of outdoor unit main parts Part name Checking procedure No． Compressor Measure and compare each winding resistance by digital tester. (Model:RX423A3TJB-20M) Position Resistance value Red-White White-Black 0.517±0.026Ω Black-Red (all same resistance is ok.) at 20℃ Compressor Measure and compare each winding resistance by digital tester. (Model:LX771A3TJB-20M) Position Resistance value...
Page 49: Inverter Assembly
2-2. Inverter Assembly Name Model Specification ○ ○ ○ ○ ○ ○ ○ ○ ○ 1 Power supply terminal block JXO-6004 AC600V/75A, 4P ○ ○ ○ ○ 2 Noise Filter P.C. board (1) MCC-1748 - ○ ○ ○ ○ ○ 3 Noise Filter P.C.
Page 50: Flow Selector Unit (Multi-Port , Single-Port) / Shut-Off Valve Unit
2-3. Flow Selector unit (Multi-port , Single-port) / Shut-off Valve unit FS unit FS unit Shut-off Valve unit (Multi-port) (Single-port) Parts Name Model Specification PAM-MD12TF-305 DC12V, 〇〇〇〇〇〇〇〇 Pulse motor valve coil Connector : White PMV-L, D PAM-MD12TF-306 DC12V,...
Page 51: Parts Layout In Outdoor Unit
2-6. Parts Layout in Outdoor Unit - 51 -...
Page 52: Parts Layout In Inverter Assembly
2-7. Parts Layout in Inverter Assembly 8, 10, 12, 14HP Model: MMY-SUG0801*, SUG1001*, SUG1201*, SUG1401* The Interface P.C. board sub-assembly Interface P.C. board (MCC-1747) Inverter P.C. board for fan Remove the Interface P.C. board sub-assembly (MCC-1734) Thermistor Magnet Contactor Noise Filter P.C. board(1) (MCC-1748) Communication terminal block Inverter P.C.
Page 53 16, 18HP Model: MMY-SUG1601*, SUG1801* The Interface P.C. board sub-assembly Interface P.C. board (MCC-1747) Inverter P.C. board for fan 1 (MCC-1734) Remove the Interface P.C. board sub-assembly Inverter P.C. board for fan 2 Magnet Contactor 2 (MCC-1734) Thermistor 2 Thermistor 1 Magnet Contactor 1 Noise Filter P.C.
Page 54 20, 22, 24HP Model: MMY-SUG2001*, SUG2201*, SUG2401* Interface P.C. board (MCC-1747) The Interface P.C. board sub-assembly Inverter P.C. board for fan 2 (MCC-1734) Inverter P.C. board for fan 1 Remove the Interface P.C. board sub-assembly (MCC-1734) Magnet Contactor 2 Thermistor 2 Thermistor 1 Magnet Contactor 1 Noise Filter P.C.
Page 55: Outdoor (Inverter) Print Circuit Board
2-8. Outdoor (Inverter) Print Circuit Board 2-8-1. Interface P.C. board (MCC-1747) PMV1 Output PMV4 Output CN300 CN303 Option Input/ Output PMV5 Output PMV2 Output CN345 CN301 PMV3 Output PMV6 Output CN302 CN346 High pressure SW CN305,306 UART communication AC Power IN CN600 CN304 Mg-CTT...
Page 56: Noise Filter P.c. Board (Mcc-1748)
2-8-2. Noise Filter P.C. board (MCC-1748) 1290W 2Comp 2Fan model (A3 Compressor) 990W 1Comp 1Fan model (A3 Compressor) (8/10/12/14HP) (16/18/20/22/24HP) Power supply Input L1 Power supply Input L1 Power supply output to Comp Power supply output to Comp CN21 CN21 CN102 CN102 Power supply Input L2...
Page 57: Inverter P.c. Board For Compressor (Mcc-1729)
2-8-3. Inverter P.C. board for compressor (MCC-1729) 1290W 2Comp 2Fan model (A3 Compressor) 1290W 2Comp 2Fan model (A3 Compressor) (16/18HP) (20/22/24HP) 990W 1Comp 1Fan model (A3 Compressor) (8/10/12/14HP) Power supply Input L1 CN01 Power supply Input L2 CN02 Reactor connecting terminal Power supply Input L3 CN04 CN03...
Page 58: Inverter P.c. Board For Fan (Mcc-1734)
2-8-4. Inverter P.C. board for fan (MCC-1734) Vdc input from COMP Vcc input CN01 Fan motor output CN100 Vcc output Vdc input from COMP CN301 CN101 CN02 190mm UART communication For inverter address setting CN802,CN803 SW800 - 58 -...
Page 59: Usb Isolate P.c. Board (Mcc-1754)
2-8-5. USB isolate P.C. board (MCC-1754) screw USB communication to I/F USB connector CN01 CN02 Type C - 59 -...
Page 60: Parts Layout In Flow Selector Unit, Shut-Off Valve Unit, Battery Kit And Leak Detector
2-9. Parts Layout in Flow Selector unit, Shut-off Valve unit, Battery kit and Leak Detector Parts Layout in Flow Selector unit Multi-port type Model: RBM-Y1801FU4PE Pulse motor valve coil (PAM-MD12TF-306) Pulse motor valve coil (PAM-MD12TF-305) Model: RBM-Y1801FU8PE Pulse motor valve coil (PAM-MD12TF-306) Pulse motor valve coil (PAM-MD12TF-305)
Page 61 Parts Layout in Flow Selector unit Single-port type Model RBM-Y1121FUPE RBM-Y1801FUPE RBM-Y2801FUPE Pulse motor valve coil (PAM-MD12TF-305) Pulse motor valve coil (PAM-MD12TF-306) Parts Layout in Shut-off Valve unit Model: RBM-SV1121HUPE RBM-SV1801HUPE Pulse motor valve coil (PAM-MD12TF-305) Pulse motor valve coil (PAM-MD12TF-306) Model: RBM-SV6701HUPE Pulse motor valve coil...
Page 62 Part layout in Battery kit model : TCB-BT1UPE Battery Assembly (Ni-MH) (T6BK120AAHU) P.C. board (MCC-1772) Part layout in Leak Detector model : TCB-LD1UPE P.C. board (MCC-1782) Refrigerant sensor module (FIS-5084) - 62 -...
Page 63: Parts Layout In Electric Part Assembly (Flow Selector Unit, Shut-Off Valve Unit)
2-10. Parts Layout in Electric Part Assembly (Flow Selector unit, Shut-off Valve unit) Model: RBM-Y1801FU4PE P.C. board (MCC-1770) Model: RBM-Y1801FU8PE P.C. board (MCC-1770) Model: RBM-Y1801FU12PE P.C. board (MCC-1770) Model: RBM-Y1121FUPE RBM-Y1801FUPE RBM-Y2801FUPE RBM-SV1121HUPE RBM-SV1801HUPE RBM-SV6701HUPE P.C. board (MCC-1771) - 63 -...
Page 64: Print Circuit Board
2-11. Flow Selector Unit, Shut-off Valve Unit and Battery kit and Leak detector Print Circuit Board 2-11-1. Flow Selector unit multi type P.C. board (MCC-1770) PMV output Power supply output CN602 CN309 PMV output PMV output Power supply input CN603 CN601 CN67 Battery kit setting...
Page 65: Flow Selector Unit Single Type & Shut-Off P.c. Board (Mcc-1771)
2-11-2. Flow Selector unit single type & Shut-off P.C. board (MCC-1771) PMV output CN602 PMV output PMV output CN601 CN603 Battery kit CN521 Indoor unit (Sub BUS communication) CN200 MCU operation LED / Indoor communication LED D501 / D502 PMV status LED D504～D506 Battery kit setting SW03...
Page 66: Shut-Off 24Hp P.c.board (Mcc-1771)
2-11-3. Shut-off 24HP P.C.board (MCC-1771) PMV output CN602 PMV output PMV output CN601 CN603 Battery kit CN521 Indoor unit (Sub BUS communication) CN200 MCU operation LED / Indoor communication LED D501 / D502 PMV status LED D504～D506 Battery kit setting SW03 Power supply input PMV setting...
Page 67: Battery Kit P.c.board (Mcc-1772)
2-11-4. Battery kit P.C.board (MCC-1772) Battery CN21 MCU LED D101 Red Charge LED D21 Green Discharge LED D53 Green FS unit & Shut off CN01 - 67 -...
Page 68: Leak Detector P.c.board (Mcc-1782)
2-11-5. Leak Detector P.C.board (MCC-1782) Alarm lamp D01～D05 White Buzzer stop button Buzzer stop button SW02 SW03 Malfunction LED D07 Orange Reset button SW01 Operation LED D06 Green Output1 CN64 Refrigerant leak sensor Indoor unit (Sub BUS communication) CN501 CN41 Output2 CN65 - 68 -...
Page 69: Refrigerant Piping Schematic Drawing
3. REFRIGERANT PIPING SCHEMATIC DRAWING Outdoor unit 8, 10, 12, 14HP Model: MMY-SUG0801*, SUG1001*, SUG1201*, SUG1401* Fan motor PMV1 Main heat exchanger PMV2 Sub heat exchanger 4WV3 4WV2 4WV1 High-pressure sensor Low-pressure Oil separator sensor SV3D Accumulator High- pressure SV41 switch Subcool Heat Exchanger...
Page 70 16, 18HP Model: MMY-SUG1601*, SUG1801* Fan motor Fan motor PMV1 Left side Sub heat exchanger Right side Main heat exchanger PMV2 Left side Sub heat exchanger Right side PMV3 4WV3 4WV2 4WV1 High-pressure sensor Low-pressure Oil separator sensor SV3D Accumulator High- High- pressure...
Page 71 20, 22, 24HP Model: MMY-SUG2001*, SUG2201*, SUG2401* Fan motor Fan motor PMV1 Left side Main heat exchanger Right side PMV2 Left side Sub heat exchanger Right side Sub heat exchanger PMV3 4WV3 4WV2 4WV1 High-pressure sensor Low-pressure Oil separator sensor SV3D Accumulator High-...
Page 72 Functional Part Name (Connector CN324：WHI) SV3D 1) Reserves oil in the oil separator during OFF time. 2) Returns 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 accumulator when the compressor dilution (SV41 •...
Page 73 REFRIGERANT PIPING SCHEMATIC DRAWING Flow Selector unit (Multi-port) RBM-Y1801FU4PE / RBM-Y1801FU8PE / RBM-Y1801FU12PE (To outdoor unit) Suction gas pipe HP/LP gas pipe Liquid pipe PMV-L Pressure regulate valve Gas pipe Gas pipe Gas pipe (To indoor unit) Liquid pipe Liquid pipe Liquid pipe *) FU4PE Flow Selector unit (Single-port)
Page 74 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 75: Combined Refrigerant Piping System Schematic Diagrams
4. COMBINED REFRIGERANT PIPING SYSTEM SCHEMATIC DIAGRAMS 4-1. Cooling mode (Heat pump) Outdoor unit (MMY-SUG1201MT8(J)P-E) Fan motor PMV1 Main heat exchanger PMV2 Sub heat exchanger 4WV3 4WV2 4WV1 High-pressure sensor Low-pressure Oil separator sensor SV3D Accumulator High- pressure switch SV41 Subcool Heat Exchanger SV3F...
Page 76: Defrost Mode (Heat Pump)
4-2. Defrost mode (Heat pump) Outdoor unit (MMY-SUG1201MT8(J)P-E) Fan motor PMV1 Main heat exchanger PMV2 Sub heat exchanger 4WV3 4WV2 4WV1 High-pressure sensor Low-pressure Oil separator sensor SV3D Accumulator High- pressure switch SV41 Subcool Heat Exchanger SV3F Compressor 1 PMV4 (77cc) PMV5 Pressure...
Page 77: All Heating Mode (Heat Pump)
4-3. Heating mode (Heat pump) Outdoor unit (MMY-SUG1201MT8(J)P-E) Fan motor PMV1 Main heat exchanger PMV2 Sub heat exchanger 4WV3 4WV2 4WV1 High-pressure sensor Low-pressure Oil separator sensor SV3D Accumulator High- pressure switch SV41 Subcool Heat Exchanger SV3F Compressor 1 PMV4 (77cc) PMV5 Pressure...
Page 78: All Cooling Mode (Heat Recovery)
4-4. Cooling mode (Heat recovery) Outdoor unit (MMY-SUG2401MT8(J)P-E) Fan motor Fan motor PMV1 Left side Main heat exchanger Right side Main heat exchanger PMV2 Left side Sub heat exchanger Right side Sub heat exchanger PMV3 4WV3 4WV2 4WV1 High-pressure sensor Oil separator Low-pressure sensor...
Page 79: Defrost Mode (Heat Recovery)
4-5. Defrost mode (Heat recovery) Outdoor unit (MMY-SUG2401MT8(J)P-E) Fan motor Fan motor PMV1 Left side Main heat exchanger Right side Main heat exchanger PMV2 Left side Sub heat exchanger Right side Sub heat exchanger PMV3 4WV3 4WV2 4WV1 High-pressure sensor Oil separator Low-pressure sensor...
Page 80: All Heating Mode (Heat Recovery)
4-6. Heating mode (Heat recovery) Outdoor unit (MMY-SUG2401MT8(J)P-E) Fan motor Fan motor PMV1 Left side Main heat exchanger Right side Main heat exchanger PMV2 Left side Sub heat exchanger Right side Sub heat exchanger PMV3 4WV3 4WV2 4WV1 High-pressure sensor Oil separator Low-pressure sensor...
Page 81: Simultaneous Cooling Mode (Heat Recovery)
4-7. Simultaneous cooling mode (Heat recovery) Outdoor unit (MMY-SUG2401MT8(J)P-E) Fan motor Fan motor PMV1 Left side Main heat exchanger Right side Main heat exchanger PMV2 Left side Sub heat exchanger Right side Sub heat exchanger PMV3 4WV3 4WV2 4WV1 High-pressure sensor Oil separator Low-pressure...
Page 82: Simultaneous Heating Mode (Heat Recovery)
4-8. Simultaneous heating mode (Heat recovery) Outdoor unit (MMY-SUG2401MT8(J)P-E) Fan motor Fan motor PMV1 Left side Main heat exchanger Right side Main heat exchanger PMV2 Left side Sub heat exchanger Right side Sub heat exchanger PMV3 4WV3 4WV2 4WV1 High-pressure sensor Oil separator Low-pressure...
Page 83: 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 controlled between 50 pls and 3000 pls, During air conditioner operation, the pulse (PMV)
Page 84 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 85 Item Description of operation, numerical data, and other information Remarks 1) The compressors are controlled on the basis of capacity demand issued by indoor 3. Capacity • The outdoor rotation control 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 86 Item Description of operation, numerical data, and other information Remarks 5. Oil This is a control for preventing oil shortage and oil equalization control is performed as recovery follows during cooling operation and heating operation. control [1] During cooling operation When the oil level of any compressor in the outdoor unit is determined to be insufficient •...
Page 87 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 control [1] Defrosting start condition (Reverse defrosting • During the heating operation, if the TE sensor detected temperature falls below the method) predicted TE sensor temperature by a specified amount, or if the TE sensor detected temperature falls below the frosting temperature for 300 minutes, the defrosting...
Page 88 Item Description of operation, numerical data, and other information Remarks [1] SV4 and SV2 gas 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. 1) Control condition •...
Page 89 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 90 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 91 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 92: 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 93 Item Outline of specifications Remarks 2) By setting the CODE No. 06, the setup temperature in Return air temperature Room temp. control heating operation can be compensated. shift of heating operation (Continued) Setup data Setup temp. compensation +0°C +2°C +4°C +6°C Except while sensor of the remote controller is...
Page 94 Item Outline of specifications Remarks Fan speed 1) By the command from remote control, fan speed is HH > H+ > H > L+ > L > UL selection changed. ((HH), (H+), (H), (L+), (L) or [AUTO]) 2) When the fan speed mode [AUTO] is selected, the fan Depends on fan speed mode speed varies by the difference between TA and Ts.
Page 95 Item Outline of specifications Remarks Fan speed selection Setting of height ceiling mode at CODE No. [5D] or (Continued): at SW501 on P .C. board. 4-way, Compact 4-way (only UP015), 2-way, 1-way (SH) (Fan speed selection of UP012 or less and UP018 for Compact 4-way are only Standard.) Factory default Type 1 Type 3...
Page 96 Item Outline of specifications Remarks Prevention of cold 1. In heating operation, the lowest temperature between TCJ: Temperature of indoor TC1 sensor and the highest temperature between air discharge heat exchanger sensor TC2 and TCJ sensor is set as the upper bound of the •...
Page 97 Item Outline of specifications Remarks Refrigerant (Oil) Indoor units during stop/thermostat OFF or FAN Control is performed per two recovery control in operation perform following controls when a refrigerant hours or when the outdoor unit cooling operation (compressor oil) recovery signal is received from determines its need.(It varies outdoor unit at the cooling operation, depending on the indoor units...
Page 98 Item Outline of specifications Remarks Alarm output The alarm output from the indoor P .C. board is output in each Be sure to change the setup indoor unit during group control, but it can be set so as to be setting data while output in the header unit and follower units.
Page 99 Item Outline of specifications Remarks Selection of 1) Selection of the contents that can be operated by the central control remote controller at the indoor unit side is possible mode according to setting at the central controller side. 2) Setting contents Operation on remote controller Operation from ON/OFF...
Page 100 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. (In the case of RBC-AMTU3∗) The louver numbers that are displayed on the display part Setup from the remote correspond to those in the following figure.
Page 101 Item Outline of specifications Remarks Louver control <<Selection of Swing mode>> Subject model : Compact 4-way (Continued) • For the Swing mode, the following three types of modes 4-way cassette are selectable and settable by keeping Swing/Direction SWING/FIX button pushed for 4 seconds or more on the remote controller.
Page 102 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 103 Item Outline of specifications Remarks Occupancy 1) During the Occupancy sensor operation (DN code: [B5] The Occupancy sensor sensor [0001] and [B6] [0002 to 0005]), when there is no people in can be set up by wired the Occupancy sensor range, it is automatically switched to remote controller the operation for the absence.
Page 104 Item Outline of specifications Remarks Secondary Secondary heating can be used while heating operations are performed. heating <Control Outline (Normal Mode)> 1) If the difference between the indoor temperature and the outdoor temperature is large while the air conditioner is operating, turn ON the secondary heating.
Page 105 Item Outline of specifications Remarks Secondary DN [C5] Data Secondary heating mode heating (Continued) 0000 Normal mode (Factory default) 0001 Flip mode DN [C6] Data : Set temp. out (high) [ºC] -0015 "-0015": -15ºC to "0015": 15ºC "0000": 0ºC (Factory default) 0015 DN [C7] Data...
Page 106 Item Outline of specifications Remarks R32 refrigerant • When connecting to an outdoor unit that uses R32 refrigerant, Indoor unit type usable the following settings must be made according to the safety with R32 refrigerant: Safety system used. 4-way cassette type, measures * Floor standing type (Including concealed type and cabinet type) Compact 4-way...
Page 107: 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 108 When switching from the wired remote controller (RBC-ASCU11*) Basic procedure Be sure to stop the air conditioner before making settings. (Change the setup while the air conditioner is not working.) 2,4,5 Push and hold menu button and [ ] setting button simultaneously for 10 seconds or more.
Page 109 Push the menu button to make Code No. [ ] flash. Change Code No. [ ] with [ ] setting button. Push the menu button to make Set data [ ] flash. Change Set data [ ] with [ ] setting button. Push OFF timer button to complete the set up.
Page 110 Outdoor Unit Function Code No. (O. DN) Table (Includes Functions Needed to Perform Applied Control on Site) Item Description At shipment Type Setting Code range : 0000 to 0255 According to type Model name O.DN[003] Model name O.DN[003] Undefined 0000 MMY-SUG1601****-E 0005 MMY-SUG0801****-E...
Page 111 Item Description At shipment Optional Output Setting Control 1 0000 : Compressor Operation Output 0001 : Operating Rate Output 0000 : Compressor (CN514) Operation Output Priority Operation Mode Setting 0000 : Priority heating 0001 : Priority cooling 0000 : Priority 0002 : Priority operation unit No.
Page 112: Applied Control Of Outdoor Unit
6-2. Applied Control of Outdoor Unit The outdoor fan high static pressure support and priority operation mode setting (cooling / heating / number of units / or priority indoor unit) functions are available by setting relevant switches provided on the interface P.C. board of the outdoor unit.
Page 113: 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 114 <RBC-ASCU11*> Priority set 0001 No priority set 0000 2,4,5 Push and hold menu button and [ ] setting button simultaneously for 10 seconds or more. • After a while, the display flashes as shown in the figure. “ALL” is displayed as indoor unit numbers during initial communication immediately after the power has been turned on.
Page 115  Wired remote controller (RBC-AMSU51*) 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 AMS*5* Field setting menu(2/2) 6.Setting timer operation mode 7.DN setting 8.Reset power consumption data...
Page 116: 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 117 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 118 (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 119 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 120 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 VDC, 10 mA or more, 1 A or less (non-conductive load) When connecting a conductive load (e.g.
Page 121 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 122 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 123 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 124 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 125 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 126 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 127: 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 icon (Notice code icon) on the wired remote controller or central controller display.
Page 128 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 129: System Cooperation Defrosting
6-4. System Cooperation Defrosting Overview This is a function in which two systems or three systems of SHRM-A 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 130 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 131 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 132: Night Operation (Sound Reduction Control)
6-5. Night operation (Sound reduction control) Overview The 'Night operation' function of RBC-AMSU5* remote control can be used with SHRM-A. It reduces the • sound of outdoor unit putting priority on quietness during night time operation, etc., and the operation time can be set.
Page 133 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 134: 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 135: 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 136 (2) In the case that a central control system is connected (before address setup) Central Remote Controller U3 U4 (1) Header Unit (A) U3 U4 U3 U4 Other Refrigerant Outdoor Unit line U1 U2 U5 U6 U1 U2 U5 U6 To Indoor Unit U1 U2 U1 U2...
Page 137 (2) In the case that a central control system is connected (before address setup) Central Remote Controller U3 U4 (1) Header Unit (A) U3 U4 U3 U4 Other Refrigerant Outdoor Unit line U1 U2 U5 U6 U1 U2 U5 U6 To Indoor Unit U1 U2 U1 U2...
Page 138 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 leakage breaker) appropriate? Is the gauge of the Header unit (A) Indoor unit power cable correct?
Page 139 • Check the additional amount of refrigerant. Checklist 2 Calculate total additional amount refrigerant from the compensation amount of refrigerant according to total outdoor unit horsepower (A), the additional amount of refrigerant by the pipe diameter on the liquid side and the pipe length (B),the compensation amount of refrigerant according to indoor unit horsepower (C), and the total compensation amount of refrigerant according to the system diversity (D) Additional amount...
Page 140 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. <Additional amount of refrigerant by pipe length (B)> Total pipe length on each liquid side Pipe diameter on Standard amount of refrigerant Total pipe length on each liquid side...
Page 141 <According to indoor unit horsepower for Hot Water Module (HWM)> Indoor Unit Corrective amount Number of Corrective amount Capacity of refrigerant connected indoor of refrigerant on each units indoor unit horsepower Number <According to indoor unit horsepower for Fresh Air Intake)> Corrective amount of refrigerant: 0 kg <According to indoor unit horsepower for High Efficiency 4-Way Cassette (MMU-UP∗∗∗∗H∗)>...
Page 142: 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 143 <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 144: 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 145: 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 from MMY-SUG160 to SUG240.
Page 146 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 147 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 148 Switch setting (setting example when controlling 2 or more refrigerant lines centrally) Outdoor units (setting manually) *The items in bold font must be set manually. Outdoor unit's interface Factory Outdoor unit Outdoor unit Outdoor unit P.C. board default SW101 Bit1 (Header unit se�ng) SW101 Bit2-4, SW102 Bit1-4 (ALL OFF)
Page 149 4. Address setup Automatic address setup Open the access door cover and follow the steps below to set the address. REQUIREMENT • High voltage parts exist in the electrical control box. If you set addresses on an outdoor unit, operate the unit through the access door as shown in the illustration below to avoid electric shock.
Page 150 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 151 <RBC-ASCU11*> 4, 7, 10, 5, 6, 8, 13, 16 9, 11, 12, 14, 15 5, 6, 8, 9, 11, 12, 14, 15 Pair the indoor unit to set and the remote controller one-to-one. Turn on the power. Push and hold menu button and [ ] setting button simultaneously for 10 seconds or more.
Page 152 (Indoor address) Push the menu button to make Code No. flash. Change Code No. to 13 with [ setting button. Push the menu button to make Set data [****] flash. Set the indoor unit address with ] setting button. (TU2C-LINK : 0001~0128 Push the Timer off button.
Page 153 To change an indoor unit address using a wired remote controller. <RBC-ASCU11*> The method to change the address of an individual indoor unit (the indoor unit is paired with a wired remote controller one-to-one), or an indoor unit in a group. (The method is available when the addresses have already been set automatically.) 3, 6 2, 4, 5...
Page 154 Confirming the indoor unit addresses and the position of an indoor unit using the remote controller Confirming the numbers and positions of indoor units To know the indoor unit addresses though position of the indoor unit is recognized When the unit is individual (the indoor unit is paired with a wired remote controller one-to-one), or it is a group-controlled one.
Page 155 To find an indoor unit’s position from its address When checking unit numbers controlled as a group ∗∗∗ ∗∗∗ ∗∗∗ <RBC-AMT ∗∗∗ ∗∗∗ > TEMP. ON / OFF TIMER SET MODE TIME SAVE VENT Stop FILTER RESET TEST SWING/FIX UNIT LOUVER (Execute it while the units are stopped.) The indoor unit numbers in a group are indicated one after another.
Page 156 To check all the indoor unit addresses using an arbitrary wired remote controller. (When communication wirings of 2 or more refrigerant lines are interconnected for central control) ∗∗∗ ∗∗∗ ∗∗∗ <RBC-AMT ∗∗∗ ∗∗∗ > TEMP. ON / OFF TIMER SET MODE TIME SAVE...
Page 157 Method 1 (Changing the address after automatic address setup) Follow the procedures below if the power supply and communication line wiring work has been completed. 1) Turn the power for every outdoor unit and indoor unit on. 2) Perform "Automatic address setup" from the header outdoor unit. The system address, indoor address, and the group address will be set for every indoor unit in the system automatically.
Page 158 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 159 <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 160 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 161 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 162 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 163 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 164 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 165 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 166 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 167 (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 168 (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) - 168 -...
Page 169: Check After Address Setup When Central Control System Is Connected
7-4-4. 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 170: Setting When Connecting Indoor Units To Fs (Flow Selector)
7-4-5. Setting when connecting indoor units to FS (Flow Selector) unit or shut-off valve 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 and a shut-off valve unit, it is necessary to setup CODE No.[FE] Be sure to setup CODE No.
Page 171 How to setup the CODE No. [FE] (Flow Selector unit address) ■ • As for every single port type FS unit, multi port type FS unit and shut-off valve unit, setup CODE No. “FE” within the range of 1~128. This CODE No. cannot be duplicate in one system. 1.
Page 172 ■Setting when connecting safety equipment ・To comply with the requirements of enhanced tightness refrigerating systems of IEC 60335-2-40, the system is equipped with the shut-off valves (Flow Selector unit, Shut-off valve unit) , Leak detector and Battery kit. And each systems have the appropriate safety systems in according to the system specifications. In case the requirements of this manual are followed, no additional safety measures are needed.
Page 173 ■Line A Minimum Total system refrigerant [kg] Minimum Total system refrigerant [kg] floor area Wall mount and Ceiling mounted type floor area Wall mount and Ceiling mounted type Amin [m2] (include duct type) under ceiling type Amin [m2] (include duct type) under ceiling type 0.84 0.69...
Page 174 ■Line B Minimum Total system refrigerant [kg] Minimum Total system refrigerant [kg] floor area Wall mount and Ceiling mounted type floor area Wall mount and Ceiling mounted type Amin [m2] (include duct type) under ceiling type Amin [m2] (include duct type) under ceiling type 1.68 1.38...
Page 175 WARNING • The total amount of refrigerant in the system must be less than or equal to the maximum allowable total amount of refrigerant. The maximum allowable amount of refrigerant = (The number of connected indoor units) x 15.96 [kg] and the maximum is 63.85 [kg].
Page 176 WARNING ・For the refrigerant leak detector to function, the unit shall be powered on at all times after installation, except during service. ・Attach a battery kit to the FS unit and shutoff valve kit so that the refrigerant can be shut off even in the event of a power failure.
Page 177 For the leak detector installation of R32 air conditioning system, check the following before installing. WARNING • The detector used as a safety device for the air conditioning system shall be used the specified Toshiba optional product. • A leak detector installation shall be complied with the following requirements 1,The leak detector shall be installed in each room that requires a safety device.
Page 178 (The examples for safety device installations) The location of the leak detector varies depending on the safety system and the room. Incorrect Correct Case Install the Leak Detector in the same room as the connected indoor unit. FS-S FS-S FS-S FS-S Group setting of indoor unit across FS unit (or Shut-off Valve unit) is not possible.
Page 179 ④ [Safety Shut-off valve installation] For recovery by pump-down and individual shutdown, the position where the safety shut-off valve can be installed differs depending on the indoor unit, safety shut-off valve type, etc. The installation position shall be determined according to the following. ○...
Page 180 ④ ［Safety Shut-off valve installation］ ○ Setting up the CODE No. [107] to 1 (Pump-down operation) FS : Flow Selector unit ■ Multi-port type FS unit (12 ports and 8 ports type) The connection pipe length on the downstream side of the shut-off valve is 180m. Installation Installation not permitted...
Page 181 FS : Flow Selector unit ■ Single port type FS unit (10HP type) The connection pipe length on the downstream side of the shut-off valve is 50m. Installation Installation not permitted not permitted Installation permitted Installation permitted Minimum floor area A Minimum floor area A Ceiling mounted type (include duct type) Wall mount and under ceiling type...
Page 182 ■ Multi-port type FS unit (12 ports and 8 ports type) FS : Flow Selector unit □ Ceiling mounted type (include duct type) Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP...
Page 183 Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 18 HP 20 HP 22 HP 24 HP 28 HP 32 HP 36 HP 38.4 HP...
Page 184 □ Wall mount and under ceiling type Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP 3 HP 4 HP 5 HP...
Page 185 Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 18 HP 20 HP 22 HP 24 HP 28 HP 32 HP 36 HP 38.4 HP...
Page 186 ■ Multi-port type FS unit (4 ports type) FS : Flow Selector unit □ Ceiling mounted type (include duct type) Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP...
Page 187 Minimum Connectable pipe length to the downstream side floor area of the shut-off valve　[m] Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 18 HP 20 HP 22 HP 24 HP 25.6 HP －...
Page 188 □ Wall mount and under ceiling type Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP 3 HP 4 HP 5 HP...
Page 189 Minimum Connectable pipe length to the downstream side floor area of the shut-off valve　[m] Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 18 HP 20 HP 22 HP 24 HP 25.6 HP －...
Page 190 FS : Flow Selector unit ■ Single port type FS unit (4HP and 6.4HP type) □ Ceiling mounted type (include duct type) Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP...
Page 191 □ Wall mount and under ceiling type Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP 3 HP 4 HP 5 HP...
Page 192 FS : Flow Selector unit ■ Single port type FS unit (10HP type) □ Ceiling mounted type (include duct type) Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP...
Page 193 □ Wall mount and under ceiling type Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP 3 HP 4 HP 5 HP...
Page 194 ■ Shut-off valve unit (4HP type) □ The connection pipe length on the downstream side of the shut-off valve is 10m. Installation Installation not permitted not permitted Installation permitted Installation permitted Minimum floor area A Minimum floor area A Wall mount and under ceiling type Ceiling mounted type (include duct type) □...
Page 195 □ The connection pipe length on the downstream side of the shut-off valve is 300m. Installation Installation not permitted not permitted Installation permitted Installation permitted Minimum floor area A Minimum floor A Ceiling mounted type (include duct type) Wall mount and under ceiling type □...
Page 196 ■ Shut-off valve unit (6.4HP type) □ The connection pipe length on the downstream side of the shut-off valve is 10m. Installation Installation not permitted not permitted Installation permitted Installation permitted Minimum floor area A Minimum floor area A Wall mount and under ceiling type Ceiling mounted type (include duct type) □...
Page 197 □ The connection pipe length on the downstream side of the shut-off valve is 300m. Installation Installation not permitted not permitted Installation permitted Installation permitted Minimum floor area A Minimum floor A Ceiling mounted type (include duct type) Wall mount and under ceiling type □...
Page 198 Example) ■ S h u t-o f f va l ve u n i t (2 4 H P typ e ) □ T h e co n n e cti o n p i p e l e n g th o n th e d o w n stre a m si d e o f th e sh u t-o f f va l ve i s 1 0 m . Installation Installation not permitted...
Page 199 ■ Shut-off valve unit (4Hp and 6.4HP type) □ Ceiling mounted type (include duct type) Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP...
Page 200 □ Wall mount and under ceiling type Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP 3 HP 4 HP 5 HP...
Page 201 ■ Shut-off valve unit (24HP type) □ Ceiling mounted type (include duct type) Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP...
Page 202 Connectable pipe length to the downstream side of the shut-off valve [m] Minimum floor area Total capacity of indoor units on the downstream side of the shut-off valve [HP] 18 HP 20 HP 22 HP 24 HP 28 HP 32 HP 36 HP 40 HP 44 HP...
Page 203 □ Wall mount and under ceiling type Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP 3 HP 4 HP 5 HP...
Page 204 Connectable pipe length to the downstream side of the shut-off valve [m] Minimum floor area Total capacity of indoor units on the downstream side of the shut-off valve [HP] 18 HP 20 HP 22 HP 24 HP 28 HP 32 HP 36 HP 40 HP 44 HP...
Page 205 ○ Individual shut-off operation setting ( the CODE No. [107]) For individual shut-off, the following 2 types of shutoff valves can be connected. Type System FS: Flow Selector unit SV: Shut-off Valve FS unit (Single port) Heat recovery Short-off valve kit Heat recovery, cooling only setting of heat recover, Heat pump The installation availability line differs depending on the FS unit type and Shut-off valve unit type (single, horsepower) and the length of the connecting pipe.
Page 206 Example ○ Setting up the CODE No. [107] to 2 (Individual shut-off operation) ■ Flow Selector unit Single-port type (4 HP type) In case that connection pipe length on the downstream side is 10 m. Installation Installation not permit not permitted Installation nstallati Installation...
Page 207 ■ Single port type FS unit (4HP and 6.4HP type) □ Ceiling mounted type (include duct type) Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP...
Page 208 □ Wall mount and under ceiling type Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP 3 HP 4 HP 5 HP...
Page 209 ■ Single port type FS unit (10HP type) FS: Flow Selector unit □ Ceiling mounted type (include duct type) Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP...
Page 210 □ Wall mount and under ceiling type Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP 3 HP 4 HP 5 HP...
Page 211 ■ Shut-off Valve unit (4 HP type) In case that connection pipe length on the downstream side is 10 m. Installation Installation not permit ot permit Installation permitted Installation permitted Minimum floor area A Minimum floor area A Ceiling mounted type (include duct type) Wall mount and under ceiling type ■ Shut-off Valve unit (6.4 HP type) In case that connection pipe length on the downstream side is 10 m.
Page 212 ■ Shut-off valve unit (4HP and 6.4HP type) □ Ceiling mounted type (include duct type) Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP...
Page 213 □ Wall mount and under ceiling type Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP 3 HP 4 HP 5 HP...
Page 214 ■ Shut-off valve unit (24HP type) □ Ceiling mounted type (include duct type) Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP...
Page 215 Connectable pipe length to the downstream side of the shut-off valve [m] Minimum floor area Total capacity of indoor units on the downstream side of the shut-off valve [HP] 18 HP 20 HP 22 HP 24 HP 28 HP 32 HP 36 HP 40 HP 44 HP...
Page 216 □ Wall mount and under ceiling type Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 1 HP 2 HP 3 HP 4 HP 5 HP...
Page 217 Minimum Connectable pipe length to the downstream side of the shut-off valve　 floor area Amin Total capacity of indoor units on the downstream side of the shut-off valve [HP] [m2] 18 HP 20 HP 22 HP 24 HP 28 HP 32 HP 36 HP 40 HP...
Page 218 ⑤ [To determine the limit on the amount of additional refrigerant] Determine the smallest room area to calculate the total allowable refrigerant charge limit in the system. The area of the smallest room being served by the system is decided in the following contents to determine the maximum allowable total charge of the system.
Page 219 ■ Safety measure selection flow Based on the installation conditions calculated above, determine the installation specifications according to the following safety measure selection flow. Start Calculate the minimum ﬂoor space A Installation space. Determine the Installation height of the indoor unit. Calculate the amount of allowable refrigerant for determining the necessity of safety requirement.
Page 220 ■ How to set up the CODE No. [107] (Safety measures) • It is necessary to set up safety measures. • If the settings and actual connections are different, the system will not be able to operate. 0：No safety equipment is require 1：Pump-down operation 2：Individual shut-off operation 3：Only refrigerant leak detector...
Page 221 : Outdoor unit : FS unit Single-port type : Remote controller : Piping : Indoor unit : FS unit Multi-port type : Leak detector : Control wiring : Branch header pipe : Shut-off valve unit : Battery kit [ Set up example ] [ 0F ] : Cooling only setup 0 : Heat pump 1 : Cooling only...
Page 222 In case of connecting one group operation of indoor units to single port type Flow Selector unit. FS-S FS-S Indoor unit [ 14 ] [ FE ] [ 105 ] [ 106 ] [ 107 ] [ 108 ] In case of connecting one group operation of indoor units and safety measures to shut-off valve unit. In case of connecting one indoor unit to single port type FS unit.
Page 223 FS: Flow Selector unit In case of connecting one indoor unit and not connecting indoor unit to one port of multi port type Flow In correct connection. Selector unit. Cannot operate due to check code "L13". FS-M FS-M Indoor unit [ 14 ] [ FE ] [ 105 ]...
Page 224 FS: Flow Selector unit In case of connecting two group operation of indoor units to multiple ports of multi port type Flow Selector Incorrect connection. unit, and connecting two remote controllers to one group of indoor unit. It may cause unintended user behavior. FS-M FS-M Indoor unit...
Page 225 FS: Flow Selector unit In case of connecting one group operation of indoor unit and one indoor unit to one port of multi port type Flow Incorrect connection. Selector unit. FS-M FS-M Indoor unit [ 105 ] [ 106 ] [ 107 ] [ 108 ] Indoor unit...
Page 226 FS: Flow Selector unit In case of connecting one indoor unit to one port of multi port type Flow Selector unit (12 port type), and connecting safety measures. FS-M Indoor unit [ 105 ] [ 106 ] 1 or 3 1 or 3 1 or 3 1 or 3...
Page 227 FS: Flow Selector unit In case of connecting single port type Flow Selector unit and shut-off valve unit in the system. In case of connecting multiple port type Flow Selector unit and shut-off valve unit in the system. FS-S FS-M Indoor unit [ 0F ] [ 14 ]...
Page 228 ■ How to setup cooling only indoor unit [0F] Setting up an indoor unit to "Cooling Only" unit is necessary when there is no connected flow selector unit, Perform setup using the following procedure. Setting up the indoor unit is performed using the wired remote controller. Even if a wired remote controller is not used, connect a wired remote controller for setup.
Page 229: 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 powered on after wiring work or during address setup operation, the following causes are considered. 7-5-1.
Page 230 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 231: 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 232: 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 233 Miswiring example Remote Header unit Figure controller 7-segment Miswiring example status display Outdoor unit Outdoor unit U3 U4 U1 U2 Fig 1 Wiring forgotten U1 U2 U1 U2 U1 U2 • Indoor/outdoor communication line is • Indoor/outdoor communication line is miss wired to Uh (U3/U4).
Page 234: 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 235: Inspection Mode (Safety Measures)
7-6-2. Inspection mode (safety measures) When connecting an FS unit or a shut-off valve 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.
Page 236 When using a refrigerant leak detector, perform the following simple inspection mode. The simple inspection mode is performed with a refrigerant leakage detector. The simple inspection mode should be performed for each refrigerant leak detector. If you run a simple inspection mode while normal operation, this operation stops. The simple inspection mode can be performed during the detailed inspection mode.
Page 237: Cooling/Heating Test Operation Check
7-6-3. Cooling/Heating Test Operation Check The cooling/heating test operation check can be performed on both the indoor remote controller and the outdoor header unit interface PC board. (1) Test operation start/stop operation Test operation from the indoor remote controller • Wired remote controller: Refer to the items below in “Test operation” of the wired remote controller. •...
Page 238 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 after installation, it takes approx. 5 Cooling test run: minutes until the remote controller ON/OFF 17°C 18°C...
Page 239 (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 240 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 241: Fs Unit And Shut-Off Valve Unit Piping Connection,Wiring Connection Check
7-6-4. FS unit and Shut-off Valve unit piping connection,wiring connection check Do not operate when an FS unit or Shut-off Valve is connected to the main pipe from ※ the outdoor unit. START Refer to "Pulse Motor Valve (PMV) Forced Open/Close Function in FS unit Close the PMV-L of the target FS unit or Shut-off Valve unit.
Page 242: Pump-Down Test Operation
7-6-5.Pump-down test operation ◆Perform pump-down test operation by the following operation. NOTE) When performing this operation, be sure to perform "7-6-2. Inspection mode (safety measures)" and "7-6-3. Cooling / Heating test operation check" in advance. <Pump-down test start operation> 1. Set the rotary switches on the interface P.C. board of the outdoor unit to SW01=[2], SW02=[15], SW03=[15]. 7-segment display [Pt.] [　　　]...
Page 243: 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 244 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 245: 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 246 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 247 (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 248 (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 249 (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 250 (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 251 (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 252: Check Code Clearing Function
7-7-3. Check Code Clearing Function (1)Clearing from the main remote controller <RBC-ASCU11*> Clearing a check code of the outdoor unit There is no such function in the remote controller. Push the [OFF timer] button for over 10 seconds. Each time the [ ] button is pushed, the recorded troubleshooting history is displayed in sequence.
Page 253 (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 254: 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 255: 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 256: Pulse Motor Valve (Pmv) Forced Open/Close Function And Solenoid Valve
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 257 [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) Pressing the push switch [SW04] for one second sets the selected PMV# to full-open.
Page 258: Pulse Motor Valve (Pmv) Forced Open/Close Function
7-7-7. Pulse Motor Valve (PMV) Forced Open/Close Function in FS unit and shut-off valve unit. The pulse motor valves (PMV-L , PMV-D, PMV-S) of the FS unit and shut-off valve 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.
Page 259: 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 260: 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 261: 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 262: Confirmation Of The Check Code ( L02, L11, L13, L14 )
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 263: Confirmation Of The Number Of Fs Units Or Shut-Off Valve Units Connected
7-7-12. Confirmation of the number of FS units or shut-off valve units connected Use this function to check for the number of FS units or shut-off valve units connected. [Method to display the number of FS units or shut-off valve units connected display] (1) Set the rotary switches [SW01/SW02/SW03] on the interface P.C.
Page 264: Refrigerant Leakage Detection
(This is not a refrigerant leakage detected by the Leak detector.) ※ 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.
Page 265: 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. <RBC-ASCU11*>...
Page 266 Display Code No. Unit format Room temperature (Use to control) °C e l l ° ° ° 4 l i o ° l i o ° l i o ° Indoor discharge air temperature (TF) *1 °C Indoor fan motor number of revolutions [1000]=1000rpm t l i Suction exchanger (TSA) *1...
Page 267: 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 268: 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 269: Troubleshooting
8. TROUBLESHOOTING 8-1. Overview (1) Before engaging in troubleshooting (a) Applicable models Super Heat Recovery Multi Advance (SHRM-A) models. (Indoor units: MM -UP , Outdoor units: MMY-SUG****MT) (b) Tools and measuring devices required • Screwdrivers (Philips, flat head), spanners, long-nose pliers, nipper, pin to push reset switch, etc.
Page 270: 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 271 Check code Display of receiving unit Central control Outdoor 7-segment display Indicator light block Typical problem site Description of Check code or main remote Ready Timer Operation controller Sub-code Flash display SIM Duplicated indoor group — — There is more than one header unit in group. header unit Connection of group control There is at least one stand-alone indoor unit to...
Page 272 (Check code detected by remote controller) Check code Display of receiving unit Outdoor 7-segment display Indicator light block Typical problem site Description of Check code Remote control Operation Timer Ready Sub-code Flash No master remote control, Signals cannot be received from indoor unit; –...
Page 273 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 274 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 Flash controller display 01: TS1 sensor Outdoor suction • Outdoor suction temperature sensor •...
Page 275 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 Flash controller display Safety measures setting unlatch • Safety measures setting of indoor Detected indoor unit address unit connected to same FS unit (or SV unit) is mismatched.
Page 276 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 277 (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 278: Troubleshooting Based On Information Displayed On Remote Controller
8-3. Troubleshooting based on information displayed on remote controller Using main remote controller (RBC-ASCU11*) <RBC-ASCU11*> (1) Confirmation and check If a problem occurs with the air conditioner, the OFF timer indicator alternately shows the check code and the indoor Unit No. in which the problem occurred.
Page 279 Using indoor unit indicators (receiving unit light block) (wireless type) To identify the check code, check the 7-segment display on the outdoor 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 280 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 281 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 282: 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 283 Check code Location Outdoor 7-segment display Check code detection Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Indoor unit Indoor-outdoor Stop of corresponding Indoor unit is not receiving • Check order in which power was turned on for communication unit signal from outdoor unit.
Page 284 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 settings. • Check remote controller controller master remote corresponding configuration (including P.C.boards.
Page 285 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Outdoor-outdoor All stop Signal cannot be transmitted • Check power supply to communication to other outdoor units for at outdoor units.
Page 286 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 287 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 288 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 voltage. 1 side P.C. board breakdown circuit detects overcurrent (AC380-415V ±...
Page 289 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 290 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 Communication Stop of FS unit not receiving signal • Check wiring between from indoor unit(s) trouble between corresponding FS unit and indoor —...
Page 291 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 292 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Safety • Safety measures setting is • Check safety measures Detected All stop set other than "no safety settings of indoor units. measures indoor unit measures"...
Page 293 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 294 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 295 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Outdoor liquid All stop <During cooling operation> • Check full-close operation backflow When system is in cooling of outdoor PMV (1, 2, 3, 4). detection operation, high pressure is •...
Page 296 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Outdoor liquid All stop <During cooling operation> • Check full-close operation backflow When system is in cooling of outdoor PMV (1, 2, 3, 4). detection operation, high pressure is •...
Page 297 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Discharge All stop Discharge temperature • Check outdoor service temperature (TD2) exceeds 115 ˚C. valves (gas side, liquid TD2 trouble side) to confirm full opening.
Page 298 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 299 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Differs according to Central Group control Continued Trouble occurs in follower • Check check code of unit nature of alarm-causing control follower unit operation...
Page 300 Points to Note When Servicing Compressor (1) When checking the outputs of inverters, remove the wiring from all the compressors. How to Check Inverter Output (1) Turn off the power supply. (2) Remove compressor leads from the compressor P.C. board. (The model with two compressor should remove the wiring for two sets (6 leads).
Page 301: Diagnosis Procedure For Each Check Code
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Page 346: 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 347 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 348 (1) Display of System Information (Displayed on Header Outdoor Unit Only) SW01 SW02 SW03 Display detail − − System capacity A […8]~[..24] : 8 to 24 HP B [HP] No. of outdoor units A […1] : 1 B […P] No. of indoor units connected / No. (1) [...
Page 349 (2) Display of Outdoor Unit Information (Displayed on Each Outdoor Unit) SW01 SW02 SW03 Display detail Check code data A Outdoor unit No.: [U1] 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 350 (3) Display of Outdoor Cycle Data (Displayed at Each Outdoor Unit) Display detail SW01 SW02 SW03 Pd pressure data Pd pressure (MPaG) is displayed in decimal format. (MPaG: Approx. 10 times magnitude of kg/cm P d. ∗. ∗ ∗ Ps pressure data Ps pressure (MPaG) is displayed in decimal format.
Page 351 (4) 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 B ...
Page 352: 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 353: Shrm-A Outdoor Interface P.c. Board Function Setting Change Table
8-8. SHRM-A 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 354 Interface Board Switches and jumper wire positions 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 - 354 -...
Page 355 List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part (MMY-SUG0801*, 1001*, 1201*, 1401*) 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 356 Outdoor Unit (8, 10, 12, 14HP) Model: MMY-SUG0801*, 1001*, 1201*, 1401* Fan motor PMV1 Main heat exchanger PMV2 Sub heat exchanger 4WV3 4WV2 4WV1 High-pressure sensor Low-pressure Oil separator sensor SV3D Accumulator High- pressure switch SV41 Subcool Heat Exchanger SV3F Compressor 1 PMV4 (77cc)
Page 357 List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part (MMY-SUG1601*,1801*, 2001*, 2201*, 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 358 Outdoor Unit (16, 18, 20, 22, 24HP) Model: MMY-SUG1601*, 1801*, 2001*, 2201*, 2401* Fan motor Fan motor PMV1 Le f f t t side side M M ai ai n n heat heat ex ex chang chang er er Right side Main heat exchanger PMV2 Left side...
Page 359: Sensor Characteristics
8-9. Sensor Characteristics Outdoor Unit Temperature sensor characteristics Outdoor TS1, TS2, 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...
Page 360 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 361 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 below) (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 362: Pressure Sensor Output Check
8-10. 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 363 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 364: System Operation When The Leak Detector Detects Refrigerant Leak
8-11. System operation when the Leak Detector detects refrigerant leak. When a leak detector detects a refrigerant leak, the indoor unit connected to the detected leak detector issues a [J30] notification. When a refrigerant leak is detected, the alarm LED flashes and the buzzer rings. The alarm can be stopped by pressing the alarm lamp button for at least 2 seconds, after buzzer sounds 1 minute.
Page 365: 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 366 (3) Change the connection of wiring as shown in the below. Outdoor Unit (16,18,20,22,24HP) Model: MMY-SUG1601*, 1801*, 2001*, 2201*, 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 367: Outdoor Unit Repairing Method
10. Outdoor Unit repairing method When outdoor unit is in need of repair, refrigerant should be recovered from the system and after repairing, refrigerant should be recharged to run system This section indicate the repairing procedure from recovering refrigerant to charging refrigerant. Please proceed as follows; Start　→　10-1.
Page 368 For an airtight test, connect a nitrogen gas canister as shown in the figure on this page and apply pressure. • Be sure to apply pressure from the service ports of the packed valves (or ball valve) at the liquid side and (HP/LP, Suction) gas side.
Page 369 For Heat Recovery System Installation Low pressure High pressure gauge gauge Valve details Connected to To gauge Suction gas side valve manifold indoor unit fully opened Gauge Main Liquid-side manifold Service service port piping Header outdoor unit port of HP/ To outdoor unit Liquid-side LP gas...
Page 370: Vacuum Drying
10-4. Vacuum drying • Be sure to perform vacuuming from both liquid and (HP/LP, Suction) gas side. • Be sure to use a vacuum pump equipped with the counter-ﬂow prevention function so that oil in the pump will not ﬂow back into piping for air conditioners. (If oil in the vacuum pump enters in the air conditioner with R32 refrigerant, a problem may be caused in the refrigerating cycle.) After ﬁnishing the airtight test and discharging nitrogen gas, connect the gauge manifold to the service ports of the liquid side and (HP/LP, Suction) gas side and connect a vacuum pump as shown in the ﬁgure below.
Page 371: Charging Refrigerant
10-5. Charging refrigerant Note : • After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of refrigerant. • Amount of charging refrigerant should not just add Additional amount written in P139-141 "7-2. Check items before test Operation (before powering-on) _ Checklist2", but also add amount charged in factory.
Page 372 Position of the Check-joint The ﬁgure below shows the position of the check-joint. MMY-SUG0801,1001,1201,1401MT8 MMY-SUG1601,1801,2001,2201,2401MT8 For low pressure side For high (color : Blue) pressure side For liquid side For liquid side (color : Red) (color : Green) (color : Green) For low For high pressure...
Page 373: Replacing Compressors
11. REPLACING COMPRESSORS 11-1. Compressor Replacement Procedure (Outline) START WARNING In situations such as indoor unit relocation and repairs, it is not possible to recover all the refrigerant Manually open held by the system in the outdoor units. It could cause a serious accident, such as blow out or PMV1, 2 and 3 of the injury.
Page 374: 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 Compressor oil equalization pipe, and check its color against color samples. • Determine the number of compressors to be replaced according to the color checking result.
Page 375 Model: MMY-SUG1601*, 1801* For 16, 18HP [When replacing troubled compressor only] <Measuring amount of oil in troubled compressor> • As was the case with the troubled compressor, measure the amount of oil contained by placing the compressor on a scale. Amount of oil in troubled compressor: B [cc] = (Weight of compressor as it was dismantled (kg) - 22.1kg) x 1042 (Specific volume of oil: 1042 [cc/kg]) •...
Page 376 Model: MMY-SUG2001*, 2201*, 2401* For 20, 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 377 <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 378: 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 379 <MMY-SUG0801*, 1001*, 1201* and 1401*> Check items and procedures to follow when checking oil circuit with compressor(s) disconnected Check item Location Procedure 1) With PMV 1, 2, 4, 5 and 6 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 380 <MMY-SUG1601*, 1801*> Check items and procedures to follow when checking oil circuit with compressor(s) disconnected Check item Location Procedure 1) With PMV 1, 2, 4, 5 and 6 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 381 <MMY-SUG2001*, 2201*, 2401*> Check items and procedures to follow when checking oil circuit with compressor(s) disconnected Check item Location Procedure 1) With PMV 1, 2, 4, 5 and 6 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 382: Outdoor Unit Parts Replacement Methods
12. OUTDOOR UNIT PARTS REPLACEMENT METHODS Part Work procedure Remarks Cabinet WARNING NFC holder Wear a pair of gloves. NFC holder Otherwise, you will risk an injury involving a replacement Insert each part or some other object. claw of NFC holder into each square hole 1.
Page 383: Propeller Fan And Fan Motor
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 384: Heat Exchanger
Part Work procedure Remarks WARNING Heat <8 to 14HP> Discharge cabinet exchanger Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. 1. Detachment 1) Remove No. 1. Cabinet, No.2. propeller fan/fan motor, and No.
Page 385 Part Work procedure Remarks Heat 3) Cut the pipes at the heat exchanger (Fig.6, Fig.7). exchanger (continued) <8 to 14HP> <16 to 24HP> (1) Header pipe at the gas side (Main heat exchanger) (1) Header pipe at the gas side (Main heat exchanger) (2) Distributor at the liquid side (Main heat exchanger) (2) Distributor at the liquid...
Page 386: Inverter Assembly
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 387 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 388: Water Proof Cover Assembly
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 389: Reactor Assembly
Part Work procedure Remarks WARNING Reactor 3) Reactor box assembly Wear a pair of gloves. (8-14HP) 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 390 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 391: Compressor
Part Work procedure Remarks WARNING Compressor <8 to 14HP> cover Wear a pair of gloves. Side cover Otherwise, you will risk an injury involving a replacement Remove the Side part or some other object. cover while cover lifting it diagonally Front upward of 1.
Page 392 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 393: 4-Way Valve
Part Work procedure Remarks 4-way WARNING <8 to 14HP> valve - Wear a pair of gloves. detachment/ Otherwise, you will risk an injury involving a replacement attachment part or some other object. <8 to 14HP> 1.Detachment 1)Carry out work of No. 1 Cabinet and No.4 Inverter assembly.
Page 394 Part Work procedure Remarks 4-way WARNING <8 to 14HP> valve - Wear a pair of gloves. detachment/ attachment Otherwise, you will risk an injury involving a replacement (continued) part or some other object. <8 to 14HP> 2.Attachment 1)Brazing the diverted piping connected to the top and bottom of the 4-way valves (service part).
Page 395 Part Work procedure Remarks 4-way WARNING <16 to 24HP> valve - Wear a pair of gloves. detachment/ Otherwise, you will risk an injury involving a replacement attachment part or some other object. <16 to 24HP> 1.Detachment 1)Carry out work of No. 1 Cabinet and No.4 Inverter assembly.
Page 396 Part Work procedure Remarks 4-way WARNING <16 to 24HP> valve - Wear a pair of gloves. detachment/ attachment Otherwise, you will risk an injury involving a replacement (continued) part or some other object. <16 to 24HP> 2.Attachment 1)Brazing the diverted piping connected to the top and bottom of the 4-way valves (service part).
Page 397: Accumulator
Part Work procedure Remarks Accumulator- WARNING <8 to 14HP> detachment/ Wear a pair of gloves. attachment Otherwise, you will risk an injury involving a replacement part or some other object. <8 to 14HP> 1.Detachment 1)1)Carry out work of No. 1 Cabinet and No.4 Inverter assembly.
Page 398 Part Work procedure Remarks Accumulator- WARNING <16 to 24HP> detachment/ Wear a pair of gloves. attachment Otherwise, you will risk an injury involving a replacement part or some other object. <16 to 24HP> 1.Detachment 1)1)Carry out work of No. 1 Cabinet and No.4 Inverter assembly.
Page 399: Rubber
Part Work procedure Rubber If the rubber is removed when replacing parts, install therubber as shown in the figure below. <8 to 14HP> <16 to 24HP> Fixed position of support rubber - 399 -...
Page 400: 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 ― 43T6W888 Noise Filter P.C.
Page 401: Configuration Of Inverter Assembly
13-1-2. Configuration of inverter assembly MMY-SUG0801* MMY-SUG1001* MMY-SUG1201* The Interface P.C. board sub-assembly Interface P.C. board MMY-SUG1401* (MCC-1747) Inverter P.C. board for fan Remove the Interface P.C. board sub-assembly (MCC-1734) Thermistor Magnet Contactor Noise Filter P.C. board(1) (MCC-1748) Communication terminal block Inverter P.C.
Page 402 MMY-SUG1601* MMY-SUG1801* The Interface P.C. board sub-assembly Interface P.C. board (MCC-1747) Inverter P.C. board for fan 1 (MCC-1734) Remove the Interface P.C. board sub-assembly Inverter P.C. board for fan 2 Magnet Contactor 2 (MCC-1734) Thermistor 2 Thermistor 1 Magnet Contactor 1 Noise Filter P.C.
Page 403 MMY-SUG2001* MMY-SUG2201* MMY-SUG2401* Interface P.C. board (MCC-1747) The Interface P.C. board sub-assembly Inverter P.C. board for fan 2 (MCC-1734) Inverter P.C. board for fan 1 Remove the Interface P.C. board sub-assembly (MCC-1734) Magnet Contactor 2 Thermistor 2 Thermistor 1 Magnet Contactor 1 Noise Filter P.C.
Page 404: Interface P.c. Board (Mcc-1747) Replacement Procedure
13-1-3. Interface P.C. Board (MCC-1747) Replacement Procedure Target model 43TN9689: 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 filter：1pcs...
Page 405 (13) “L10 : Outdoor capacity not set” check code is displayed on the 7-segment display. 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 406 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 407 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 408: Compressor P.c. Board (Mcc-1729) Replacement Procedure
13-1-4. Compressor P.C. Board (MCC-1729) Replacement Procedure Target model 43TN9690: MMY-SUG0801*/1001*/1201*/1401* MMY-SUG2001*/2201*/2401* 43TN9521: MMY-SUG1601*/1801* 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-1729 : 1pcs ②...
Page 409 (6) Exchange spacers (②) and attach collars(④) and bushes(③) to the service P.C. board(①). ③ Bush ①P.C. board ④Collar (7) Apply the Silicone Thermal Grease to the semiconductors (DB01, IC201) on the service P.C. board, and align the positions of the heat sink holes to mount the Compressor P.C. board on the outdoor control unit.
Page 410: Fan-Motor P.c. Board (Mcc-1734) Replacement Procedure
13-1-5. Fan-Motor P.C. Board (MCC-1734) Replacement Procedure Target model 43T6W894: ALL model Set the DIP switch (SW800) settings of the service board to This board is commonly installed in different models. match as before replacement. Included items: ① MCC-1734 : 1pcs ②...
Page 411: Noise Filter P.c. Board 1 (Mcc-1748) Replacement Procedure
13-1-6. Noise Filter P.C. Board (1) (MCC-1748) Replacement Procedure Target model 43T6W888: MMY-SUG0801*/1001*/1201*/1401* Included items: ④ Bush : 6pcs ① MCC-1748 : 1pcs ② Spacer : 4pcs ③ Spacer : 2pcs Noise Filter P.C. board Replacement Steps: ④ Bush (43T6W888) (1) Turn off the power supply of the outdoor unit ⑤...
Page 412: Noise Filter P.c. Board 2 (Mcc-1748) Replacement Procedure
13-1-7. Noise Filter P.C. Board (2) (MCC-1748) Replacement Procedure Target model 43T6W889: MMY-SUG1601*/1801*/2001*/2201*/2401* Included items: ④ Bush : 6pcs ① MCC-1748 : 1pcs ② Spacer : 4pcs ③ Spacer : 2pcs Replacement Steps: Noise Filter P.C. board Push (1) Turn off the power supply of the outdoor unit (43T6W889) Lock pin and wait at least 5 minutes for the capacitor...
Page 413: Fs Unit Parts Replacement Methods
14. FLOW SELECTOR UNIT PARTS REPLACEMENT 14-1. Flow Selector unit Multi-port type including Battery kit Part Work procedure Remarks ⚠︎ 1 Electrical control WARNING Screws box cover (upper side) ―――――――――――――――― ・Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object.
Page 414 Part Work procedure Remarks Unit 5-8 (*FU8PE) / (*FU12PE) 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) CN521: Battery kit wire (Red) CN580: Communication wire (Yellow) CN581: Communication wire (Yellow) MCC-1770...
Page 415 Part Work procedure Remarks 2 Attachment 1) Fix the control P.C. board to the card edge spacers. (4 places) SW01 SW03 2) Connect the connectors disconnected in item 1-2) as before. For connectors, check there is no missing or contact failure. 3) DIP switch SW01 and SW03 should be set according to the table below.
Page 416 Part Work procedure Remarks 3 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 417 Part Work procedure Remarks Coil-PMV 1. Detachment 1) Perform work of procedure 1. -1) (Electrical Wire clamp control box cover) and 4. -1) (Top plate). Binding band 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 418 Part Work procedure Remarks 6 BUSHING 1. Detachment 1) Perform work of procedure 1-1 Detach- ment. (Electrical control box cover) Hook 2) Push 2 hooks and remove the bushing from the electrical control box. Push Push 2 Attachment 1) Attach the bushing to the electrical control box. Push the bushing to hook the hooks onto the steel plate certainly.
Page 419 Remarks ⚠︎ Battery kit WARNING ―――――――――――――――― • Do not connect anything except TOSHIBA Battery kit. • This kit includes a nickel-metal hydride battery (NiMH). For your safety, please read instruction manual in Battery kit carefully and handle it with care.
Page 420: Fs Unit Single-Port Type Including Battery Kit
14-2. Flow Selector unit Single-port type including Battery kit 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 421 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 wired so as not to touch the cement resistance R03.
Page 422 Part Work procedure Remarks Terminal 1. Detachment Remove 1) Perform work of procedure 1-1 Detach- from the terminal. ment. (Electrical control box cover) 2) Remove the wires from the terminal. 3) Remove the screws fixing the terminal. (M4 x 14, 2 pcs) 2 Attachment Screws 1) Fix the terminal with screws as before.
Page 423 Part Work procedure Remarks 5 Coil-PMV 1. Detachment 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 424 Part Work procedure Remarks 6 BUSHING 1. Detachment 1) Perform work of procedure 1-1 Detach- ment. (Electrical control box cover) Hook 2) Push 2 hooks and remove the bushing from the electrical control box. Push Push 2 Attachment 1) Attach the bushing to the electrical control box. Push the bushing to hook the hooks onto the steel plate certainly.
Page 425 Part Work procedure Remarks 8 BODY-SERVE Before the work, be sure to recover the refrigerant of outdoor unit into cylinders or another unit connected to the same system. (Refer to the chapter "Refrigerant Recovery Method" for the outdoor unit. Screws 1.
Page 426 Remarks ⚠︎ 9 Battery kit WARNING ―――――――――――――――― • Do not connect anything except TOSHIBA Battery kit. • This kit includes a nickel-metal hydride battery (NiMH). For your safety, please read instruction manual in Battery kit carefully and handle it with care.
Page 427: Shut-Off Valve Unit Including Battery Kit
14-3. Shut-off Valve unit including Battery kit Part Work procedure Remarks ⚠︎ 1 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 428 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 wired so as not to touch the cement resistance R03.
Page 429 Part Work procedure Remarks Terminal 1. Detachment Remove 1) Perform work of procedure 1-1 Detach- from the terminal. ment. (Electrical control box cover) 2) Remove the wires from the terminal. 3) Remove the screws fixing the terminal. (M4 x 14, 2 pcs) 2 Attachment Screws 1) Fix the terminal with screws as before.
Page 430 Part Work procedure Remarks Clamp filter 1. Detachment for PMV wires 1) Perform work of procedure 4-1 Detachment. (ZCAT3035-1330) (Top plate) Clamp filter 2) Remove the clamp filter from the PMV wires. 2 Attachment 1) Attach the clamp filter to the three PMV wires that have been put together.
Page 431 Part Work procedure Remarks Coil-PMV 1. Detachment RBM-SV1121HUPE RBM-SV1801HUPE 1) Perform work of procedure 1. -1) (Electrical Wire clamp control box cover) and 4. -1) (Top plate). 2) Remove the PMV wire from the wire clamp as appropriate. For RBM-SV6701HUPE Remove the clamp filter attached to the PMV wire.
Page 432 Part Work procedure Remarks BUSHING 1. Detachment 1) Perform work of procedure 1-1 Detach- ment. (Electrical control box cover) Hook 2) Push 2 hooks and remove the bushing from the electrical control box. Push Push 2 Attachment 1) Attach the bushing to the electrical control box. Push the bushing to hook the hooks onto the steel plate certainly.
Page 433 Part Work procedure Remarks BODY-SERVE Before the work, be sure to recover the Screws refrigerant of outdoor unit into cylinders or another unit connected to the same system. Electrical control box (Refer to the chapter "Refrigerant Recovery Method" for the outdoor unit. 1.
Page 434 Remarks ⚠︎ 10 Battery kit WARNING ―――――――――――――――― • Do not connect anything except TOSHIBA Battery kit. • This kit includes a nickel-metal hydride battery (NiMH). For your safety, please read instruction manual in Battery kit carefully and handle it with care.
Page 435: Disposal Method For Battery Kit
14-4. Disposal method for Battery kit • Disassemble the nickel-metal hydride battery (NiMH) built into this product and dispose of it or recycle it in accordance with the laws and regulations of your country / region. • When disposing of batteries, keep batteries of different electrochemical systems separate from each other.
Page 436: Leak Detector
14-5. Leak Detector No. Part Work procedure Remarks 1.Detachment Print Circuit Board (PCB) 1) Stop the air conditioner operation, and turn off the circuit breaker to shut off the power supply. 2) Remove the bind screw which fix the CASE of the Leak Detector. 2) Bind screw (M3 x 8, 1 pcs) 3) Remove the CASE of the Leak Detector.
Page 437 No. Part Work procedure Remarks 2 Sensor module 1.Detachment PCB and insulation Sheet 1) Carry out the same procedure as Detachment 1) to 6) of PCB. 2) Remove the PCB. 3) Remove the Connector of sensor cable from sensor module. 4) Remove the sensor module from CASE.
Page 438: Exploded Diagram/Parts List
15. EXPLODED DIAGRAM/PARTS LIST 15-1. Outdoor unit (8, 10, 12, 14HP) MMY-SUG0801* MMY-SUG1001* MMY-SUG1201* MMY-SUG1401* - 438 -...
Page 439 For MMY-SUG0801*, MMY-SUG1001*, MMY-SUG1201*, MMY-SUG1401* 056 056 051 055 067 056 067 051 056 056 051 049 056 055 053 067 031 035 056 051 055 053 067 027 029 054 049 055 067 015 061 062 093 - 439 -...
Page 440 MMY-SUG0801*, MMY-SUG1001*, MMY-SUG1201*, MMY-SUG1401* Fan motor PMV1 Main heat exchanger Sub heat exchanger PMV2 4WV3 4WV2 4WV1 High- pressure sensor Low-pressure φ0.8*1600L sensor φ1.0*500L SV3D High- pressure switch SV41 Subcool Heat Exchanger SV3F φ0.7*1800L φ2.4*400L PMV4 PMV5 Liquid side HP/LP gas side Suction gas side Symbol Service valve...
Page 441 15-2. Outdoor unit (16, 18, 20, 22, 24HP) MMY-SUG1601* MMY-SUG1801* MMY-SUG2001* MMY-SUG2201* MMY-SUG2401* FAN 1 FAN 2 059 060 079 080 - 441 -...
Page 442 MMY-SUG1601MT8(J)P-E, MMY-SUG1801MT8(J)P-E, MMY-SUG2001MT8(J)P-E, MMY-SUG2201MT8(J)P-E, MMY-SUG2401MT8(J)P-E, MMY-SUG1601MT8P-A, MMY-SUG1801MT8P-A, MMY-SUG2001MT8P-A, MMY-SUG2201MT8P-A, MMY-SUG2401MT8P-A 040 043 054 049 067 056 049 067 040 043 055 051 067 028 029 050 056 067 027 029 031 036 055 067 015 061 062 093 053 056 067 015 061 062 094 056 067 033 038 041 044 033 039 052 050...
Page 443 MMY-SUG1601*, MMY-SUG1801*, MMY-SUG2001*, MMY-SUG2201*, MMY-SUG2401* Fan 1 Fan 2 Fan motor Fan motor 16,18HP 070 071 20,22,24HP Left side Main heat exchanger PMV1 Right side Main heat exchanger Left side Sub heat exchanger PMV2 Right side Sub heat exchanger PMV3 4WV3 4WV2 4WV1...
Page 444 Q'ty/Set　MMY-SUG Ref. No. Part No. Parts Name Description 0801* 1001* 1201* 1401* 1601* 1801* 2001* 2201* 2401* 43T20341 FAN-PR(PS741-T) FAN,PROPELLER 43T20359 FAN-PR(PF581-T) FAN,PROPELLER 43T19374 BELLMOUTH BELLMOUTH 43T19375 BELLMOUTH BELLMOUTH 43T19376 COVER-BELLMOUTH BELLMOUTH,COVER 43T19377 COVER-BELLMOUTH BELLMOUTH,COVER 43T21531 ASM-COAT-FAN-M MOTOR,FAN,WDF-620B1000-1 43T00817 ASM-C-BASE-MOT MOTOR,BASE 43T00913 ASM-HINS(PLATE CABINET ASSY, SIDE,UP...
Page 445 43T49350 RUB-P-SUPPORTER RUBBER,SUPPORTER,PIPE 43T49351 RUB-P-SUPPORTER RUBBER,SUPPORTER,PIPE 43T49352 RUB-P-SUPPORTER RUBBER,SUPPORTER,PIPE 43T49353 RUB-P-SUPPORTER RUBBER,SUPPORTER,PIPE 43T49354 RUB-P-SUPPORTER RUBBER,SUPPORTER,PIPE 43T49355 RUB-P-SUPPORTER RUBBER,SUPPORTER,PIPE 43T01341 MARK-T(SHRM-A) MARK,TOSHIBA 43T19380 HOLDER-SENSOR HOLDER,SENSOR 43T39351 NUT-FLANGE NUT,FLANGE 43T39350 SQUARE-WASHER WASHER 43T49357 RUB-VINS RUBBER,CUSHION 43T47385 BOLT-COMP(M6) BOLT,COMPRESSOR 43T47419 CAPI TUBE,CAPILLARY,ID 0.7 43T47374 CAPI TUBE,CAPILLARY,ID 0.8...
Page 446 Inverter Assembly Model: MMY-SUG0801*, 1001*, 1201*, 1401* The Interface P.C.B sub-assembly Remove the Interface P.C. board sub-assembly Location Part Description Q’ty/Set 43T60437 Power supply terminal block 43T6W888 Noise Filter P.C. board (1) 43TN9689 Interface P.C. board 43TN9690 Inverter P.C. board for Compressor (1) 43T6W894 Inverter P.C.
Page 447 Inverter Assembly Model: MMY-SUG1601*, 1801* The Interface P.C.B sub-assembly Remove the Interface P.C. board sub-assembly Location Part Description Q’ty/Set 43T60437 Power supply terminal block 43T6W888 Noise Filter P.C. board (2) 43T55376 FILTER, LINE 43TN9689 Interface P.C. board 43TN9521 Inverter P.C. board for Compressor (2) 43T6W894 Inverter P.C.
Page 448 Inverter Assembly Model: MMY-SUG2001*, 2201*, 2401* The Interface P.C.B sub-assembly Remove the Interface P.C. board sub-assembly Location Part Description Q’ty/Set 43T60437 Power supply terminal block 43T6W888 Noise Filter P.C. board (2) 43T55376 FILTER, LINE 43TN9689 Interface P.C. board 43TN9690 Inverter P.C. board for Compressor (1) 43T6W894 Inverter P.C.
Page 449 15-3. Flow Selector unit Multi-port type Model: RBM-Y1801FU4PE, RBM-Y1801FU8PE, RBM-Y1801FU12PE RBM-Y1801*** Location Part No. Description FU4PE FU8PE FU12PE 43TN9649 PC BOARD ASSY, MCC-1770 43T46546 COIL, PMV, PAM-MD12TF-305 43T46547 COIL, PMV, PAM-MD12TF-306 43T60592 SERV-TERMINAL 43T96310 BUSHING 43T96311 BUSHING - 449 -...
Page 450: Fs Unit Single-Port Type
15-4. Flow Selector unit Single-port type Model: RBM-Y1121FUPE, RBM-Y1801FUPE, RBM-Y2801FUPE RBM-Y****FUPE Location Part No. Description 1121 1801 2801 43TN9650 PC BOARD ASSY, MCC-1771 43T46546 COIL, PMV, PAM-MD12TF-305 43T46548 COIL, PMV, PAM-MD12TF-306 43T60592 SERV-TERMINAL 43T96310 BUSHING 43T96309 BUSHING 43T00904 BODY ASSY, SERVICE 43T00905 BODY ASSY, SERVICE 43T00906 BODY ASSY, SERVICE - 450 -...
Page 451: Shut Off Valve Unit
15-5. Model: R 1121 UPE, RBM- 1801 UPE, RBM- RBM-SV1121HUPE, RBM-SV1801HUPE RBM-SV6701HUPE RBM-SV****HUPE Location Part No. Description 1121 1801 6701 43TN9650 PC BOARD ASSY, MCC-1771 43TN9651 PC BOARD ASSY, MCC-1771 43T46546 COIL, PMV, PAM-MD12TF-305 43T46547 COIL, PMV, PQ-M10012-000231 43T46548 COIL, PMV, PAM-MD12TF-306 43T60592 SERV-TERMINAL 43T96310 BUSHING 43T96309 BUSHING...
Page 452: Leak Detector
15-6. Leak Detector Model : TCB-LD1UPE Part No. Description Q'ty / Set Location 43TN9744 PC BOARD ASSY 43T50431 R32 SENSING MODULE - 452 -...

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Toshiba SHRM ADVANCE MMY-SUG0801MT8JP-E Service Manual

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