Toshiba MMY-MUP0721FT6P-UL Service Manual

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AIR CONDITIONER (MULTI TYPE)

SERVICE MANUAL

< Super Heat Recovery Multi System SHRM-u >

Outdoor unit

MMY-MUP0721FT6P-UL

MMY-MUP0961FT6P-UL

MMY-MUP1201FT6P-UL

MMY-MUP1441FT6P-UL

MMY-MUP1681FT6P-UL

MMY-MUP1921FT6P-UL

MMY-MUP072H1FT6PUL

MMY-MUP096H1FT6PUL

MMY-MUP120H1FT6PUL

MMY-MUP0721FT9P-UL

MMY-MUP0961FT9P-UL

MMY-MUP1201FT9P-UL

MMY-MUP1441FT9P-UL

MMY-MUP1681FT9P-UL

MMY-MUP072H1FT9PUL

MMY-MUP096H1FT9PUL

MMY-MUP120H1FT9PUL

FILE NO. SVM-23086

November, 2023

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Summary of Contents for Toshiba MMY-MUP0721FT6P-UL

Page 1 FILE NO. SVM-23086 AIR CONDITIONER (MULTI TYPE) SERVICE MANUAL < Super Heat Recovery Multi System SHRM-u > Outdoor unit MMY-MUP0721FT6P-UL MMY-MUP0961FT6P-UL MMY-MUP1201FT6P-UL MMY-MUP1441FT6P-UL MMY-MUP1681FT6P-UL MMY-MUP1921FT6P-UL MMY-MUP072H1FT6PUL MMY-MUP096H1FT6PUL MMY-MUP120H1FT6PUL MMY-MUP0721FT9P-UL MMY-MUP0961FT9P-UL MMY-MUP1201FT9P-UL MMY-MUP1441FT9P-UL MMY-MUP1681FT9P-UL MMY-MUP072H1FT9PUL MMY-MUP096H1FT9PUL MMY-MUP120H1FT9PUL November, 2023...
Page 2: Table Of Contents
CONTENTS SAFETY CAUTION ..................... REFRIGERANT (R410A).................... 1. WIRING DIAGRAMS ....................2. PARTS RATING ...................... 2- 1. Outdoor Unit (MMY-MUP***1HT6P-UL) ................2- 1-1. Winding resistance of outdoor unit main parts ............ 2- 2. Inverter Assembly ......................2- 3. Flow Selector unit (Multi-port , Single-port) ..............35 2- 4.
Page 3 7. TEST OPERATION ....................7- 1. Procedure and Summary of Test Operation ..............7- 2. Check Items before Test Operation (before powering-on) ........... 7- 3. Check at Main Power-on ....................7- 4. Address Setup ........................7- 4-1. Precautions ......................7- 4-2. Address Setup and Check Procedure ..............7- 4-3.
Page 4 9. BACKUP OPERATION (EMERGENCY OPERATION) .......... 9- 1. Note for Backup Operation ....................9- 2. Compressor Backup Operation Setting ................. 9- 3. Outdoor Unit Backup Operation Setting ................ 9-3-1. Follower outdoor unit backup operation setting (failure of follower outdoor unit) .......................... 9-3-2.
Page 5 This service manual provides relevant explanations about new outdoor unit (SHRM-u). Please refer to the following service manuals for each indoor units. Model name SVM File No. <4-Way Cassette Type> MMU-UP***1HP-UL (Made in Thailand model) SVM-22074 <Compact 4-Way Cassette Type> MMU-UP***1MH-UL (Made in Japan model) A10-2209 <1-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 Carrying in the outdoor unit &$87,21 +DQGOH WKH RXWGRRU XQLW FDUHIXOO\ REVHUYLQJ WKH IROORZLQJ LWHPV ‡ :KHQ XVLQJ D IRUNOLIW WUXFN RU RWKHU PDFKLQHU\ IRU ORDGLQJ XQORDGLQJ LQ WUDQVSRUWDWLRQ LQVHUW WKH IRUN RI WKH IRUNOLIW WUXFN LQWR WKH UHFWDQJXODU KROHV IRU KDQGOLQJ DV VKRZQ EHORZ ‡ :KHQ OLIWLQJ XS WKH XQLW LQVHUW D URSH DEOH WR EHDU WKH XQLW¶V ZHLJKW LQWR WKH UHFWDQJXODU KROHV IRU KDQGOLQJ DQG WLH WKH XQLW IURP VLGHV $SSO\ SDGGLQJ LQ SRVLWLRQV ZKHUH WKH URSH FRPHV LQWR FRQWDFW ZLWK WKH RXWGRRU XQLW VR WKDW QR GDPDJH LV FDXVHG WR WKH RXWHU VXUIDFH RI WKH RXWGRRU XQLW 7KHUH DUH UHLQIRUFLQJ SODWHV RQ WKH VLGH VXUIDFHV VR WKH URSH FDQQRW EH SDVVHG WKURXJK Incorrect Correct Incorrect Plaster Rope board Rectangular holes for handling Side Incorrect Front/Back Correct Rectangular Reinforcing holes for Fork of the plate lifting forklift truck...
Page 15 39.6"(1005) 51.4"(1305) 39.0"(990) 50.8"(1290) ■Weight centre and weight Weight Type Model in. (mm) in. (mm) in. (mm) lbs (kg) Standard 6ton MMY-MUP0721FT6P-UL 21.3 16.1 45.7 Standard 8ton MMY-MUP0961FT6P-UL (540) (410) (1160) (250) High heat 6ton MMY-MUP072H1FT6PUL Standard 6ton MMY-MUP0721FT9P-UL 20.5...
Page 16 Flow Selector unit Multi-port type (unit: In(mm)) RBM-Y0611*** A [in(mm)] B [in(mm)] X [in(mm)] Y [in(mm)] Z [in(mm)] Weight [lbs(kg)] FU4PUL 13.3" (338) 16.0" (407) 9.4" (239) 7.0" (178) 6.1" (155) 46 (22 ) FU8PUL 22.8" (578) 25.5" (647) 9.4" (239) 11.9"...
Page 17 FLOW SELECTOR UNIT INSTALLATION SPACE (unit: In(mm)) Flow Selector unit Single-port type (unit: In(mm)) RBM-*** Y0611FUPUL 9.9″(250) 9.9″(250) (*) Y0961FUPUL 15.8″(400) 15.8″(400) (*) In case of using the attached pipe (accessory) 13.8" (350) - 17 -...
Page 18 &RXSOLQJ VL]H RI EUD]HG SLSH &RQQHFWHG VHFWLRQ ([WHUQDO VL]H ,QWHUQDO VL]H Connected section Standard Min. External size Internal size outer dia. Min. depth of Thickness Standard outer dia. of connected insertion Oval value (Allowable difference) copper pipe coupling +0.001 +0.0 6.35 1/4"(±0.0012) 6.35(±0.03) 0.25" 6.45 0.28 0.24 0.0024"...
Page 19 Charging requirement with additional refrigerant After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of refrigerant. Calculation of additional refrigerant charge amount Refrigerant charge amount at shipment from 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 20 Table 2.Additional amount of refrigerant base on the liquid pipe and length. 1/4 in. 3/8 in. 1/2 in. 5/8 in. 3/4 in. 7/8 in. Liquid pipe diameter 6.4 mm 9.5 mm 12.7 mm 15.9 mm 19.1 mm 22.2 mm lbs / ft 0.017 0.037 0.071...
Page 21: Refrigerant (R410A)
Refrigerant (R410A) This air conditioner adopts a HFC type refrigerant (R410A) which does not deplete the ozone layer. 1. Safety Caution Concerned to refrigerant (R410A) The pressure of R410A is 1.6 times higher than that of the former refrigerant (R22). Accompanied with change of refrigerant, the refrigerating oil has been also changed.
Page 22 Tools (1) Required Tools for R410A Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types. 1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22)) 2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22) 3) Tools commonly used for R410A and for conventional refrigerant (R22) The table below shows the tools exclusive for R410A and their interchangeability.
Page 23 Communication type, model names and the maximum number of connectable units This air conditioning (U series) has new communication specifications, and TU2C- Link (U series) and TCC-Link (other than U series) differ in a communication type. For the communication type and the model names such as each unit or remote controllers, refer to the following table.
Page 24: Wiring Diagrams
1.WIRING DIAGRAMS MMY-MUP0721FT6P-UL, MMY-MUP0961FT6P-UL, MMY-MUP072H1FT6PUL - 24 -...
Page 25 MMY-MUP1201FT6P-UL, MMY-MUP1441FT6P-UL, MMY-MUP1681FT6P-UL, MMY-MUP096H1FT6PUL, MMY-MUP120H1FT6PUL - 25 -...
Page 26 MMY-MUP1921FT6P-UL - 26 -...
Page 27 MMY-MUP0721FT9P-UL, MMY-MUP0961FT9P-UL, MMY-MUP072H1FT9PUL - 27 -...
Page 28 MMY-MUP1201FT9P-UL - 28 -...
Page 29 MMY-MUP1441FT9P-UL, MMY-MUP1681FT9P-UL, MMY-MUP096H1FT9PUL, MMY-MUP120H1FT9PUL - 29 -...
Page 30 FS unit (Multi-port) Model: RBM-Y0611FU4PUL, RBM-Y0611FU8PUL, RBM-Y0611FU12PUL - 30 -...
Page 31 FS unit (Single-port) Model: RBM-Y0611FUPUL, RBM-Y0961FUPUL - 31 -...
Page 32: Parts Rating
2. PARTS RATING 2-1. Outdoor Unit (MMY-MUP***1FT6/9P-UL) Part name Model Specifications 〇 1 Compressor LA771A3TB-20M Output:4.54kW×1 〇 1 Compressor LA771A3TB-20M Output:6.75kW×1 〇 1 Compressor LA771A3TB-20M Output:4.54kW×1 〇 1 Compressor LA771A3TB-20M Output:8.60kW×1 〇 1 Compressor LA1201K4FB-10UC Output:10.4kW×1 〇 1 Compressor LA1201K4FB-10UC Output:13.0kW×1 〇...
Page 33: Winding Resistance Of Outdoor Unit Main Parts
2-1-1. Winding resistance of outdoor unit main parts Checking procedure Part name Compressor Measure and compare each winding resistance by digital tester. (Model : LA771A3TB-20M) Position Resistance value Red – White 0.242Ω ± 0.012 White – Black Black – Red (all same resistance is ok.) 68°F(20°C) Compressor Measure and compare each winding resistance by digital tester.
Page 34 Checking procedure Part name PMV (Pulse Motor Valve) coil Measure each winding resistance by digital tester. (Model : PAM-MD12TF*) Position Resistance value White - Red (COM) Yellow - Red (COM) 100Ω ± 10 Orange - Red (COM) Blue - Red (COM) 68°F(20°C) 4-way valve coil Measure each winding resistance by digital tester.
Page 35: Inverter Assembly
2-2. Inverter Assembly Part name Model Specifications 〇〇〇〇〇〇〇〇〇〇〇〇〇〇〇〇〇 Power supply terminal block HP-T3015-31-3P-L3S AC600V/100A, 3P －〇〇〇〇〇〇〇〇〇 Noise Filter P.C.
Page 36: Parts Layout In Outdoor Unit
2-4. Parts Layout in Outdoor Unit Standard 6, 8 ton High heat 6 ton Low pressure sensor Fusible plug High pressure sensor 3-4way-valves High pressure SW Check joint (Low pressure) Check joint (Liquid) TO sensor Oil separator Compressor Check joint (High pressure) Accumulator Plate heat-exchanger...
Page 37 Standard 12, 14 ton High heat 8, 10 ton * The parts layout other than* is the same as standard 10ton. Fusible plug Oil separator High pressure SW Compressor Standard 16 ton * The parts layout other than* is the same as standard 10ton. Fusible plug Oil separator 2-High pressure SWs...
Page 38: Parts Layout In Inverter Assembly
2-5. Parts Layout in Inverter Assembly Standard 6, 8ton High heat 6ton Model: MMY-MUP0721FT6*, MUP0961FT6*, MUP072H1FT6* The Interface P.C. board sub-assembly Interface P.C. board (MCC-1747) Inverter P.C. board for fan(1) Remove the Interface P.C. board sub-assembly (MCC-1734) Thermistor Magnet Contactor Noise Filter P.C.
Page 39 Standard 10 ton Model: MMY-MUP1201FT6* The Interface P.C. board sub-assembly Interface P.C. board Inverter P.C. board for fan(1) 1 (MCC-1734) (MCC-1747) Inverter P.C. board for fan(1) 2 Remove the Interface P.C. board sub-assembly (MCC-1734) Thermistor Magnet Contactor Noise Filter P.C. board (MCC-1749) Inverter P.C.
Page 40 Standard 12, 14 ton High heat 8, 10 ton Model: MMY-MUP1441FT6*, MUP1681FT6*, MUP096H1FT6*, MUP120H1FT6* The Interface P.C. board sub-assembly Interface P.C. board Inverter P.C. board for fan(1)1 (MCC-1734) (MCC-1747) Inverter P.C. board for fan(1)2 Remove the Interface P.C. board sub-assembly (MCC-1734) Thermistor Magnet Contactor...
Page 41 Standard 16 ton Model: MMY-MUP1921FT6* The Interface P.C. board sub-assembly Interface P.C. board Inverter P.C. board for fan(1) 1 (MCC-1734) (MCC-1747) Inverter P.C. board for fan(1)2 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 42 Standard 6, 8 ton High heat 6 ton Model: MMY-MUP0721FT9*, MUP0961FT9*, MUP072H1FT9* The Interface P.C. board sub-assembly Interface P.C. board (MCC-1747) Inverter P.C. board for fan(2) Remove the Interface P.C. board sub-assembly (MCC-1734) Thermistor Magnet Contactor Noise Filter P.C. board (1) (MCC-1749) Communication terminal block Inverter P.C.
Page 43 Standard 10 ton Model: MMY-MUP1201FT9* Interface P.C. board The Interface P.C. board sub-assembly Inverter P.C. board for fan(2)1 (MCC-1734) (MCC-1747) Inverter P.C. board for fan(2) 2 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 44 Standard 12, 14 ton High heat 8, 10 ton Model: MMY-MUP1441FT9*, MUP1681FT9*, MUP096H1FT9*, MUP120H1FT9* Interface P.C. board The Interface P.C. board sub-assembly Inverter P.C. board for fan 1 (MCC-1734)(2) (MCC-1747) Inverter P.C. board for fan 2 Remove the Interface P.C. board sub-assembly (MCC-1734)(2) Magnet Contactor 2 Thermistor 2...
Page 45: Outdoor (Inverter) Print Circuit Board
2-6. Outdoor (Inverter) Print Circuit Board 2-6-1. Interface P.C. board (MCC-1747) <Target model：All model> PMV1 Output PMV4 Output CN300 CN303 Option Input/ Output PMV2 Output CN301 PMV3 Output CN302 High pressure SW CN305,306 UART communication AC Power IN CN600 CN304 Mg-CTT Detection of power supply CN304...
Page 46: 1). Noise Filter P.c. Board (Mcc-1749)
2-6-2(1). Noise Filter P.C. board (MCC-1749) <Target model：MMY-MUP****FT6*> Power supply output to Trans CN106 Power supply output to Comp CN102 Power supply Output L1 Power supply output to I/F CN21 CN101 Power supply Output L2 Power supply input from Trans CN22 CN107 Power supply Output L3...
Page 47: 2). Noise Filter P.c. Board (Mcc-1749)
2-6-2(2). Noise Filter P.C. board (MCC-1749) <Target model：MMY-MUP****FT9*> 1290W 1COMP 2FAN model 990W 1COMP 1FAN model (10, 12, 14 ton, High heat 8, 10 ton) (6, 8 ton, High heat 6 ton) Power supply Output L3 Power supply output to I/F CN27 CN101 Power supply Output L1...
Page 48: 1). Inverter P.c. Board For Compressor (Mcc-1729)
2-6-3(1). Inverter P.C. board for compressor (MCC-1729) <Target model：MMY-MUP****FT6*> 1290W 2Comp 2Fan model (A3 Compressor) 1290W 1Comp 2Fan model (16 ton) (K4 Compressor)(10, 12, 14 ton) 990W 1Comp 1Fan model (A3 Compressor) (6, 8 ton) Power supply Input L1 CN01 Power supply Input L2 Reactor connecting terminal CN02...
Page 49: 2). Inverter P.c. Board For Compressor (Mcc-1729)
2-6-3(2). Inverter P.C. board for compressor (MCC-1746) <Target model：MMY-MUP****FT9*> Input DC＋ CN21(BUS-BER) INV B output U-phase CN301 INV B output V-phase Inverter power supply input CN302 CN102 INV B output W-phase CN302 Model indification symbol Control power supply output CN102 Input DC- CN31(BUS-BER) CT input...
Page 50: Capacitor P.c.board (Mcc-1711)
2-6-4. Capacitor P.C. board (MCC-1711) <Target model：MMY-MUP****FT9*> Output CT CN35 Inverter power supply output for FAN PCB CN11 Input DC＋ REACTOR1 CN30 CN31,CN32 REACTOR2(1290W only) CN33,CN34 Input DC+ CN01 (BUS BAR) Input DC- CN03 Input DC- CN03 (BUS BAR) 190mm Power supply output for COMP PCB CN11 Parts No.
Page 51: Inverter P.c. Board For Fan (Mcc-1734)
2-6-5. Inverter P.C. board for fan (MCC-1734) <Target model：MMY-MUP****FT6*> Vcc input Vdc input from CAPA Fan motor output CN100 Vcc output CN01 Vdc input from CAPA CN302 CN101 CN02 190m For inverter address setting UART communication SW800 CN802,CN803 <Target model：MMY-MUP****FT9*> Vcc input Vdc input from CAPA Fan motor output...
Page 52: Usb Isolate P.c.board (Mcc-1754)
2-6-6. USB isolate P.C. board (MCC-1754) screw USB communication to I/F USB connector CN01 CN02 - 52 -...
Page 53: Parts Layout In Flow Selector Unit
2-7. Parts Layout in Flow Selector unit 2-7-1. Parts Layout in Flow Selector unit Multi-port type Model: RBM-Y0611FU4PUL Pulse motor valve coil (PAM-MD12TF-306) Pulse motor valve coil (PAM-MD12TF-305) Model: RBM-Y0611FU8PUL Pulse motor valve coil (PAM-MD12TF-306) Pulse motor valve coil (PAM-MD12TF-305) Pulse motor valve coil Model: RBM-Y0611FU12PUL (PAM-MD12TF-306)
Page 54: Parts Layout In Electric Part Assembly (Flow Selector Unit)
2-7-3. Parts Layout in Electric Part Assembly (Flow Selector unit) Model: RBM-Y0611FU4PUL P.C. board (MCC-1770) Model: RBM-Y0611FU8PUL P.C. board (MCC-1770) Model: RBM-Y0611FU12PUL P.C. board (MCC-1770) Model: RBM-Y0611FUPUL RBM-Y0961FUPUL P.C. board (MCC-1771) - 54 -...
Page 55: Parts Layout In Flow Selector Unit
2-8. FS Unit Print Circuit Board 2-8-1. FS unit multi-port type P.C. board (MCC-1770) PMV output Power supply output CN602 CN309 PMV output Power supply input CN603 CN67 UART between PCBs PMV output CN580,CN581 CN702 PMV output Grand CN04 CN703 PCB addres setting PMV status LED SW01...
Page 56: Fs Unit Single-Port Type P.c. Board (Mcc-1771)
2-8-2. FS unit single-port type P.C. board (MCC-1771) PMV output CN602 PMV output CN603 Indoor unit (Sub BUS communication) CN200 MCU oepration LED / Indoor communication LED D501 / D502 PMV status LED D504～D506 Power supply input PMV setting CN67 SW01 MCU operation LED / Indoor communication LED LED and PMV status...
Page 57: Refrigerant Piping Schematic Drawing
3. REFRIGERANT PIPING SCHEMATIC DRAWING Outdoor unit Standard 6,8ton／High heat 6ton Model: MMY-MUP0721*，MUP0961*，MUP072H1* Fan motor PMV1 Main heat exchanger PMV2 Sub heat exchanger Hot-gas heat exchanger SV5B 4WV3 4WV2 4WV1 仮 High-pressure sensor Low-pressure Oil separator sensor SV3D Fusible Accumulator plug High- pressure...
Page 58 Standard 10,12,14ton／High heat 8,10ton Model: MMY-MUP1201*，MUP1441*，MUP1681*，MUP096H1* ，MUP120H1* Fan motor Fan motor PMV1 Main heat exchanger L Main heat exchanger R Sub heat exchanger L Sub heat exchanger R PMV2 Hot-gas heat exchanger Hot-gas heat exchanger PMV3 SV5B 4WV3 4WV2 4WV1 High-pressure sensor 仮...
Page 59 Standard 16ton Model: MMY-MUP1921* Fan motor Fan motor PMV1 Main heat exchanger L Main heat exchanger R Sub heat exchanger L Sub heat exchanger R PMV2 Hot-gas heat exchanger Hot-gas heat exchanger PMV3 SV5B 4WV3 4WV2 4WV1 仮 High-pressure sensor Low-pressure Oil separator sensor...
Page 60 Functional Part Name (Connector CN324:WHI) SV3D 1) Reserves oil in the oil separator during OFF time. 2) Retums oil reserved in the oil separator to the compressor during ON time. (Connector CN324:WHI) SV3F 1) Supplies oil in the accumulator to the compressor 2) Shuts off the liquid refrigerant from the accumlator when the compressor dilution (SV41 connector CN324:WHI, SV42 connector CN327:BLK) 1) High/Low pressure balance...
Page 61 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 62 - 62 -...
Page 63: Single Defrost Unit
- 63 -...
Page 64: Heating Operation (Operation Of Heating Only)
- 64 -...
Page 65: Individual Defrost Operation
- 65 -...
Page 66: Simultaneous Cooling Operation (Operation Of Cooling And Heating)
- 66 -...
Page 67: Simultaneous Heating Operation (Operation Of Cooling And Heating)
- 67 -...
Page 68: Emergency Cooling Operation (Operation Of Cooling Only)
- 68 -...
Page 69: Manual Emergency Heating
- 69 -...
Page 70: Control Outline
5. CONTROL OUTLINE 5-1. Outdoor Unit Item Description of operation, numerical data, and other information Remarks [1] PMV1, 2, 3 control (PMV 1 and 2, 3) 1. Pulse 1) During air conditioner operation, the pulse count of a PMV1 (pulse motor valve 1) is motor valve (PMV) controlled between 75 pls and 3000 pls, During air conditioner operation, the pulse...
Page 71 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 72 Item Description of operation, numerical data, and other information Remarks 3. Capacity 1) The compressors of the header and follower units are controlled on the basis of • The outdoor rotation control capacity demand issued by indoor controllers. control may be performed 2) The two compressors featured in an outdoor unit operate on a rotational basis, so even when the insufficient that, every time they come to stop, their order of startup changes.
Page 73 Item Description of operation, numerical data, and other information Remarks 5. Oil This is a control for preventing oil shortage in the compressor between the outdoor units, recovery and oil equalization control is performed as follows during cooling operation and heating control operation.
Page 74 Item Description of operation, numerical data, and other information Remarks 7. Defrosting • The reverse defrosting method is used for the outdoor unit in a single system, and the control individual reverse defrosting method is used for the outdoor units in a connected system. (Reverse •...
Page 75 Item Description of operation, numerical data, and other information Remarks [1] SV4 gas and SV2 balance control 8. Release This control turns on SV4 and SV2 when the compressor is stopped to balance the valve control gas and reduce the starting load when the compressor is turned on next time. This control is performed independently by the center unit and each terminal unit.
Page 76 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 77 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 78 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 79: 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 80 Item Outline of specifications Remarks Return air temperature 2) By setting the CODE No. 06, the setup temperature Room temp. shift of heating operation in heating operation can be compensated. control (Continued) Setup data Except while sensor of 36˚F(+2C˚) 39˚F(+4C˚) 43˚F(+6C˚) 32˚F(+0C˚) Setup temp.
Page 81 Item Outline of specifications Remarks Air speed 1) By the command from remote control, fan speed is HH > H+ > H > L+ > L > UL selection changed. ((HH), (H+), (H), (L+), (L) or [AUTO]) Fan speed 2) When the air speed mode [AUTO] is selected, the air 4-way cassette speed varies by the difference between TA and Ts.
Page 82 Item Outline of specifications Remarks Setting of height ceiling Air speed selection mode at CODE No. [5D] or (Continued): at SW501 on P.C.board. 4-way, compact 4-way (only UP015), 2-way, 1-way (SH) (Air speed selection of UP012 or less and UP018 for Compact 4-way are only Standard.) Factory default Type 1 Type 3...
Page 83 Item Outline of specifications Remarks 1. In heating operation, the lowest temperature between Prevention of cold TCJ: Temperature of indoor TC1 sensor and the highest temperature between air discharge heat exchanger sensor TC2 and TCJ sensor is set as the upper bound of the •...
Page 84 Item Outline of specifications Remarks Refrigerant (Oil) The indoor unit which is under STOP/Thermostat- • Recovery operation normally recovery control in OFF status or which operates in [FAN] mode takes place when it detect that cooling operation performs the following controls when it received the the refrigerant is less.
Page 85 Item Outline of specifications Remarks Display of filter 1) The filter sign is displayed with LC by sending the filter- FILTER] goes on. sign [ reset signal to the remote controller when the specified The filter sign is not (Not provided to time (150H/2500H) elapsed as a result of integration of the displayed in the wireless...
Page 86 Item Outline of specifications Remarks Subject model : Louver control 1) Louver position setup 4-way cassette • When the louver position is changed, the position moves Compact 4-way necessarily to downward discharge position once to return to 2-way cassette the set position. 1-way cassette (SH) •...
Page 87 Item Outline of specifications Remarks Louver control <<Individual air direction setup>> Subject model : (Continued) UNIT LOUVER 4-way cassette • Pushing Louver select button enables every discharge Compact 4-way port to set up the air direction. The louver numbers that are displayed on the display part Setup from the remote correspond to those in the following figure.
Page 88 Item Outline of specifications Remarks Louver control <<Selection of Swing mode>> Subject model : 4-way cassette (Continued) • For the Swing mode, the following three types of modes Compact 4-way are selectable and settable by keeping Swing/Direction SWING/FIX button pushed for 4 seconds or more on the remote controller.
Page 89 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 90: 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 91 When switching from the wired remote controller (RBC-AWSU**) Basic procedure Be sure to stop the air conditioner before making settings. (Change the setup while the air conditioner is not working.) Push the [ Menu] button to display the menu screen Push and hold the [ Menu] button and the [...
Page 92 Refer to the Installation Manual supplied with the outdoor unit or service manual for details about Code(DN) and Data. 0000 0001 Push the [ Menu] button to set the other Code(DN) and Data.After "Continue?" is displayed on the screen, push the "...
Page 93 Outdoor Unit Function Code No. (O. DN) Table (Includes Functions Needed to Perform Applied Control on Site) Item Description At shipment Code range : 0000 to 0255 Type Setting According to type Model name O.DN[003] Model name O.DN[003] Undefined 0000 MMY-MUP0721FT9P-UL 0001 MMY-MUP0721FT6P-UL 0006 MMY-MUP0961FT9P-UL 0002 MMY-MUP0961FT6P-UL 0007 MMY-MUP1201FT9P-UL 0003 MMY-MUP1201FT6P-UL 0008 MMY-MUP1441FT9P-UL 0004 MMY-MUP1441FT6P-UL 0009...
Page 94 Item Description At shipment System cooperation 0000 : None (vassal) 0001 : Prohibition 0000: None defrosting settings 1 0002 : 2-system cooperation (master unit) 0003 : 3-system cooperation (master unit) (vassal) (number cooperating) * set [01D] = 0002 or 0003 to outdoor unit set to master unit in outdoor DN code [01F] System cooperation 0000 : None 0001 to 0128: Addresses...
Page 95: 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 96: 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 priority...
Page 97 CODE No.(DN) setting ■ Wired remote controller (RBC-AWSU**) Perform the advanced settings for the air conditioner. Carry out the setting operation while the indoor unit is stopped.(Turn off the air conditioning unit before starting the setting operation.) Display example of AWSU52* Field setting menu (2/3) 6.Setting louver position...
Page 98: 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 99 Optional application control board mounting position. Power peak-cut control PC board(TCB-PCDM4UL) Wire clip Power peak-cut control PC boad Cable strap Cable strap Inverter case type B Inverter case type A (MMY-MUP0721*, 0961*, 1201*, 1441*, 1681*, (MMY-MUP1921*) 072H1*, 096H1*, 120H1*) Quantity of cable straps : 3 Quantity of cable straps : 2 Operation mode selection PC board(TCB-PCMO4UL) Wire clip...
Page 100 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 101 (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 102 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 103 Note 1: Specifications of display relay contact • The terminal for display output ([Operation] terminal) must satisfy the following electrical rating. <Electrical Rating> 208 to 230 VAC, 10 mA or more, 1 A or less 24 VAC, 10 mA or more, 1 A or less (non-conductive load) When connecting a conductive load (e.g.
Page 104 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 105 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 106 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 107 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 108 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 109 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 110: Notice Code
6-3. Notice Code • Notice Code is a function only in TC2U-Link communication. • When the outdoor or indoor unit detects its conditions requiring caution or maintenance, this function notices you to check your units with the spanner mark (Notice code mark) on the wired remote controller or central controller display.
Page 111 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 112: System Cooperation Defrosting
6-4. System Cooperation Defrosting Overview This is a function in which two systems or three systems of SHRM-u are communicably connected, and the timing of defrosting at each system is offset. Installing an indoor device of a different system in the same room and performing system cooperation defrosting suppresses the room temperature from dropping while defrosting.
Page 113 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 114 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 115: Night Operation (Sound Reduction Control)
6-5. Night operation (Sound reduction control) Overview The 'Night operation' function of RBC-AWSU** remote control can be used with SHRM-u. It reduces • the sound of outdoor unit putting priority on quietness during night time operation, etc., and the operation time can be set. 6-5.
Page 116 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 117: 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 118: 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 119 (2) In the case that a central control system is connected (before address setup) Central Remote Controller U3 U4 To other refrigerant line (1) Header Unit (A) Follower Unit (B) Follower Unit (C) U3 U4 U3 U4 U3 U4 U3 U4 Other Refrigerant Outdoor Unit...
Page 120 Check list 1 • Using Checklist 1, check that there are no problems with the installation work. Is the capacity of the Outdoor total capacity Header unit (A) Indoor unit circuit breaker (Earth Follower unit (B) leakage breaker) Follower unit (C) appropriate? Is the gauge of the Header unit (A)
Page 121 Checklist 2 • Check the additional amount of refrigerant. Additional amount of refrigerant charge at site = [1] + [2] x [A] + [3] + [4] ［1］.Additional amount of refrigerant based on the outdoor unit capacity type (Table 1-1,1-2) ［2］.Additional amount of refrigerant based on the liquid pipe diameter and length. Real length of liquid pipe ×...
Page 122 Next, enter the total length for each liquid pipe diameter in the following table, and then calculate the additional amount of refrigerant by pipe length. Table 2. Additional amount of refrigerant based on the liquid pipe and length. Pipe diameter on the Standard amount Total pipe length on Additional amount of refrigerant...
Page 123 Table 3-2. Additional amount of refrigerant for 4-way Cassette type. (Model name : MMU-UP***1HP-UL) Indoor unit Capacity code Corrective amount Number of connected Corrective amount of refrigerant capacity type of refrigerant indoor units on each indoor unit capacity Number 0.44 15.4 0.88 1.32...
Page 124 Next, refer to the following table below, calculate the corrective amount of refrigerant according to system diversity Table 4. Refrigerant amount adjustment based on the indoor unit connection capacity. Refrigerant amount adjustment Diversity 50 % ≤ D < 60 % -9.92 -4.5 60 % ≤...
Page 125: 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 126 <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 127: 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 128: Address Setup Procedure
7-4-3. Address Setup Procedure Before setting the address, it is necessary to set the DIP-SW on the header outdoor unit interface P.C. board. 1. Follow the steps below to open the electrical control box cover (1) Loosen the screws on the left and right side of the electrical control box cover. (2) Remove the screw A for MMY-MUP192.
Page 129 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 130 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 131 Switch setting (setting example when controlling 2 or more refrigerant lines centrally) *The items in bold font must be set manually. Outdoor units (setting manually) Outdoor unit's interface Factory Header unit Follower unit Header unit Follower unit Header unit P.C. board default SW101 Bit1 (No se�ng...
Page 132 4. Address setup Automatic address setup Only if the address of all indoor units in the same system is not set, the following address will be set automatically. • Refrigerant line (system) address (Indoor unit code[12]) ... The line address of the indoor units are automatically set to the same number as the line address set in both SW101 and 102 of the outdoor Header unit I/F board.
Page 133 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 134 <RBC-AWSU**> Basic procedure Be sure to stop the air conditioner before making settings. (Change the setting while the air conditioner is not working.) Push the [ Menu] button to display the menu screen Push and hold the [ Menu] button and the [ ] button at the same time to display the "Field setting menu".
Page 135 ▼ (Indoor address) Push the [ ] / [ ] button to select Code No. Change Code No. to 13 with [ ] / [ ] button. Push the [ ] / [ ] button to select Data. Select the indoor unit address with ] / [ ] button.
Page 136 Confirming the indoor unit addresses and the position of an indoor unit using the remote controller Confirming the numbers and positions of indoor units To see the indoor unit address of an indoor unit which you know the position of When the unit is individual (the indoor unit is paired with a wired remote controller one-to- one), or it is a group-controlled one.
Page 137 To find an indoor unit’s position from its address When checking unit numbers controlled as a group CODE No. DATA SETTING UNIT No. R.C. TEMP. ON / OFF TIMER SET TIME FILTER Stop RESET TEST SET CL (Execute it while the units are stopped.) The indoor unit numbers in a group are indicated one after another.
Page 138 Using wired remote controller (RBC-AMT* etc.), all the indoor units addresses in the same system are changed. (The method is available when the addresses have already been set automatically.) The method is available when the addresses have already been set. The indoor address of other refrigerant systems cannot be changed.
Page 139 Procedure to setup address 65 to 128 from the remote controller Under TCC-Link settings (factory shipping settings), setting addresses from 65 and above are not available from the remote controller. Setting the indoor address or the zone address to 65 to 128 must be done under TU2C-Link settings, which can be performed by the procedures shown below.
Page 140 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 141 <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 142 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 143 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 144 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 145 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 146 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 147 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 148 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 149 (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 150 (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) - 150 -...
Page 151: Setting When Connecting Indoor Units To Fs (Flow Selector)
7-4-4. Setting when connecting indoor units to FS (Flow Selector) unit and when connecting safety equipment Cautions to connection of indoor unit • When connecting the indoor units to a single port type FS unit, a branch of the multi port type FS unit it is necessary to setup CODE No.[FE] Be sure to setup CODE No.
Page 152: Check After Address Setup When Central Control System Is Connected
7-4-5. Check after Address Setup when Central Control System Is Connected When the central control system is connected, check that the following setup has finished after address setup. Central remote (3) (2) controller U1 U2 U3 U4 To other refrigerant line Line address = 2 Line address = 1 Other refrigerant line...
Page 153 How to setup the CODE No. [FE] (Flow Selector unit address) ■ • As for every single port type FS unit, multi port type FS unit setup CODE No. “FE” within the range of 1~128. This CODE No. cannot be duplicate in one system. 1.
Page 154: Troubleshooting In Test Operation
7-5. Troubleshooting in Test Operation If there are phenomena such as the output of a check code or the remote controller is not accepted when poweredon after wiring work or during address setup operation, the following causes are considered. 7-5-1. A Check Code is Displayed on the Remote Controller Check the code Header displayed on the...
Page 155 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 156: 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 157: 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 158 Miswiring example Remote Header unit Figure controller 7-segment Miswiring example status display Header unit Header unit Header unit Header unit Line 1 Line 2 U1 U2 U5 U6 U1 U2 U5 U6 U1 U2 U1 U2 Fig 1 No response E19, 02 U1 U2 U1 U2...
Page 159 ：Outdoor unit ：Single port type FS unit ：Remote controller ：Piping FS-S ：Indoor unit ：Multi port type FS unit ：Control wiring FS-M ◆ [ Indoor Code DN number Setting example ] [ 0014 ]：Indoor unit Group address 0：Individual (Factory default) 1：Header unit 2：Follower unit [ 00FE ]：Flow selector unit address ・Should not be duplicate in one system.
Page 160 In case of connecting one indoor unit and not connecting indoor unit to one port Incorrect connection of multi port type FS unit. FS-M FS-M ① ② ③ ① ② ③ Indoor unit ① ② ③ [0014 ] [ 00FE ] [ 00FD ] [ 0105 ] [ 0106 ]...
Page 161 In case of connecting two group operation of indoor units to multiple ports of multi port type FS Incorrect connection unit, and connecting two remote controllers to one group of indoor unit. FS-M FS-M ① ② ③ ④ ① ② ③...
Page 162 In case of connecting one group operation of indoor unit and one indoor unit to one port In case of connecting one group operation of indoor unit to combining branches of multi port type FS unit. of multi port type FS unit. FS-M FS-M ①...
Page 163: 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 164: Inspection Mode (Safety Measures)
7-6-2. Inspection mode (safety measures) When connecting the FS unit perform the following detailed inspection mode. This mode verifies that safety measures are properly connected. The detailed inspection mode is performed on the interface board of the outdoor unit. Detailed inspection mode is completed in about 40 minutes in general and about 90 minutes at maximum. <Detailed inspection mode start operation>...
Page 165: 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 166 <RBC-AWSU**> Push the [ Menu] button to display the menu screen Push and hold the [ Menu] button and the [ ] button at the same time to display the "Field setting menu". →Push and hold the buttons for more than 4 seconds Push the [ ] / [...
Page 167 Wireless remote controller Turn on the power of the air conditioner. <Overview of test run operations using the wireless remote controller> When power is turned on for the first time Cooling test run: after installation, it takes approx. 5 62.6°F(17°C) 64.4°F(18°C) 62.6°F(17°C) minutes until the remote controller...
Page 168 (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 169 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 46.4°F(8°C) or more, it is normal. (2) Heating operation After operating for a minimum of 30 minutes in “HEAT”...
Page 170: 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 171 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 172: 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 173 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 174 (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 175 (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 176 (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 177 (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 178 (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 179: Check Code Clearing Function
7-7-3. Check Code Clearing Function (1)Clearing from the main remote controller <RBC-AWSU**> ▼ Clearing a check code of the outdoor unit There is no such function in the remote controller. Push the [ Menu] button to display the menu screen Push and hold the [ Menu] button and the [...
Page 180 (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 181: 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 182: 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 183: Forced On Function In Outdoor Unit
7-7-6. Pulse Motor Valve (PMV) Forced Open/Close Function and Solenoid valve Forced ON Function in Outdoor Unit The solenoid valves provided to outdoor units can be forced ON (open) by switching operations at the interface P.C. board of the outdoor unit. Also, the pulse motor valves (PMV1, PMV2, PMV3, PMV4) of the outdoor unit can be forced to full-open, half open, and full-closed for two minutes.
Page 184: Pulse Motor Valve (Pmv) Forced Open/Close Function In Fs Unit
7-7-7. Pulse Motor Valve (PMV) Forced Open/Close Function in FS unit. The pulse motor valves (PMV-D, PMV-S) of the FS unit can be forced to full-open and full-closed for 30 minutes. Use this function to check for PMV malfunctioning, clogging, miss connection, and so forth. [Control start method] (1) Set SW01 [11] and set SW02, SW03 to indoor address No.
Page 185 [Method of operating pulse motor valve (PMV) (forced open/close)] (1) Use the rotary switch [SW03] to select the PMV to operate. When [P#. ] is displayed in the PMV display, PMV# is operating according to normal control. (#: selected PMV No.) (2) Pushing the push-switch [SW04] for one second sets the selected PMV# to full-open.
Page 186: 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 187: 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 188: 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 189: Confirmation Of The Check Code ( L02, L11, L13, L14 ) Occurred During
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 190: Refrigerant Leakage Detection
7-7-13. Refrigerant leakage detection The refrigerant leakage can be confirmed by using the switches on Interface P.C.board of the outdoor unit. If there is a leak, the location must be found in order to recover the refrigerant. After that, implement appropriate countermeasure and refill the refrigerant to its standard volume. Refrigerant leaks can be detected by comparing the Actual opening of PMV with the Calculated opening of PMV* during the operation.
Page 191: Monitor Function Of Remote Controller Switch
7-7-14. Monitor Function of Remote Controller Switch Switching to the service monitor mode <Content> The sensor temperature or operation status of the remote controller, indoor unit, or the outdoor unit can be known by switching to the service monitor mode from the remote controller. [Procedure] <RBC-AWSU**>...
Page 192 Display Code No. Unit format Room temperature (Use to control) °C e l l °C [0027]=27°C [0080]=80°F °F l i o °F l i o °F l i o °F Indoor discharge air temperature (TF) *1 °F Indoor fan motor number of revolutions [1000]=1000rpm t l i Suction exchanger (TSA) *1...
Page 193: Before The Use Of Wave Tool Advance
After confirmation, download/install the Wave Tool Advance Application (WTA App.) and USER GUIDE. Be sure to read the USER GUIDE before the use of this application. <Wave Tool Advance Support URL> https://www.toshiba-carrier.co.jp/global/appli/smms_wave_tool_advance/index.htm Notice WTA App. is not supported SMMS-e series. Please use the "SMMS Wave Tool" when using the SMMS-e series.
Page 194: 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 195: Troubleshooting
8. TROUBLESHOOTING 8-1. Overview (1) Before engaging in troubleshooting (a) Applicable models Super Heat Recovery Multi system (SHRM-u) models. (Indoor units: MM -UP , Outdoor units: MMY-MUP (b) Tools and measuring devices required • Screwdrivers (Philips, flat head), spanners, long-nose pliers, nipper, pin to push reset switch, etc.
Page 196: 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 197 (Check code detected by remote controller) Check code Display of receiving unit Outdoor 7-segment display Indicator light block Description of Check code Typical fault site Remote control Operation Timer Ready Sub-code Flash No master remote control, Signals cannot be received from indoor unit; –...
Page 198 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 199 Check code Display of receiving unit Central Indicator light block Outdoor 7-segment display Typical problem site Description of Check code control or main remote Operation Timer Ready Sub-code controller Flash display 01: TS1 sensor Outdoor suction • Outdoor suction temperature sensor •...
Page 200 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 201 (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 202: Troubleshooting Based On Information Displayed On Remote Controller
8-3. Troubleshooting based on information displayed on remote controller When a trouble occurs in the air conditioner, the check code and the indoor unit number flash on the display of the remote controller. * The check code is only displayed during the operation.
Page 203 Using indoor unit indicators (receiving unit light block) (wireless type) To identify the check code, check the 7-segment display on the header unit. To check for check codes not displayed on the 7-segment display, consult the “List of Check Codes (Indoor Unit)” in “8-2. Troubleshooting method”. : Blinking (0.5 seconds) : Lighting : Goes off...
Page 204 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 205 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 206: 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 207 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code No. of indoor Dropping out of All stop Condition 1 • Check power supply to units from indoor unit All indoor unit initially indoor unit.
Page 208 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Remote Duplicated Stop of In two remote controller • Check remote controller controller master remote corresponding configuration (including settings. controller unit wireless), both controllers...
Page 209 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code Outdooroutdoor All stop Signal cannot be transmitted • Check power supply to communication to other outdoor units for at outdoor units.
Page 210 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 211 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 212 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code 1∗: Compressor Compressor Compressor All stop Inverter current detection • Check power supply 1 side P.C. board breakdown circuit detects overcurrent voltage.
Page 213 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 214 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller detection Check Sub-code code FS unit Communiation FS unit not receiving signal • Check wiring between FS Stop of trouble from indoor unit(s) unit and indoor unit(s).
Page 215 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 216 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code FS unit(s) Priority setting has not • Check indoor units All stop 02: Indoor setting been performed for indoor operation mode priority units units...
Page 217 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 218 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 219 Check code Location Outdoor 7-segment display Check code detection Description System status Check items (locations) condition(s) Controller Check detection Sub-code code 01: PMV1,2,3 Outdoor liquid All stop <During cooling operation> • Check full-close operation side (Follower backflow When system is in cooling of outdoor PMV (1, 2, 3, 4).
Page 220 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code 0#: 4-way valves Abnormal refrigerating cycle • Check for failure in main 4-way valve All stop *Put in outdoor data is collected during body of 4-way valves.
Page 221 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) condition(s) Controller Check detection Sub-code code 1∗: Fan P.C. Fan INV. Outdoor fan All stop Protected operation of Fan • Check fan motor. board 1 P.C.
Page 222 ▼Points to Note When Servicing Compressor (1) When checking the outputs of inverters, remove the wiring from all the compressors. ▼How to Check Inverter Output (1) Turn off the power supply. (2) Remove compressor leads from the compressor P.C. board. (3) Turn on the power supply and start cooling or heating operation.
Page 223 <Target model：MMY-MUP****FT9*> Measured point Criterion CN201 – CN202 150V – 260V CN202 – CN203 150V – 260V CN203 – CN201 150V – 260V CN301 – CN302 150V – 260V CN302 – CN303 150V – 260V CN303 – CN301 150V – 260V 1-U：RED lead wire(CN301) 1-V：WHITE lead wire(CN302) 1-W：BLACK lead wire(CN303)
Page 224 ▼How to Check Resistance of Compressor Winding (1) Turn off the power supply. (2) Remove compressor leads from the compressor P.C. board. (Be sure to remove all the leads.) (3) With each compressor, check the phase-to-phase winding resistances and winding-to-outdoor cabinet resistance using a multimeter.
Page 225: Diagnosis Procedure For Each Check Code
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Page 264: 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 265 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 266 (1) Display of System Information (Displayed on Header Outdoor Unit Only) SW01 SW02 SW03 Display detail − − System capacity […6.0t]~[40.0t]: 6 to 40 ton No. of outdoor units A […1]~[…3]: 1 to 3 B […P] No. of indoor units connected / No. (1) [...
Page 267 (2) Display of Outdoor Unit Information (Displayed on Each Outdoor Unit) SW01 SW02 SW03 Display detail Check code data A Outdoor unit No.: [U1] to [U5] 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 268 (3) Display of Outdoor Cycle Data (Displayed at Each Outdoor Unit) Display detail SW01 SW02 SW03 Pd pressure data Pd pressure (psi) is displayed in decimal format. ∗. ∗ ∗ (psi: Approx. 14 times magnitude of kg/cm P d. ∗. ∗ ∗ Ps pressure data P s.
Page 269 (4) Display of Outdoor Cycle Data (Displayed at Header Unit) * This method is used when displaying follower unit information on the 7-segment display of the header unit. SW01 SW02 SW03 Display detail Trouble data [U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U5) B Check code is displayed (latest one only).
Page 270 (5) Display of Indoor Unit Information (Displayed on Header Unit Only) SW01 SW02 SW03 Display detail Indoor check code B No check code : [- - -] Indoor BUS communication signal B Upon receiving signal : [..1], Other times : [..] receiving status Indoor ton capacity B ...
Page 271: 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 272: Smms-U Outdoor Interface P.c. Board Function Setting Change Table
8-8. SMMS-u Outdoor Interface P.C. Board Function Setting Change Table 1. Switch/Function Setting Change SW No. Change contents bit1 Uh communication termination OFF: No termination resistance ON: With termination resistance resistance for central control SW100 DIP SW 2 bit Uv communication termination bit2 resistance between indoor and OFF: No termination resistance...
Page 273 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 - 273 -...
Page 274: Leakage/Clogging Of Refrigerating Cycle Circuit
8-9. Leakage/Clogging of Refrigerating Cycle Circuit List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part (MMY-MUP0721*, MUP0961*, MUP072H1*) Clogging Unit generating Location of Part Problem check code Detected problem and check code Symptom (Refer to next page) Outdoor PMV1, 2 Corresponding unit...
Page 275 Outdoor Unit (Standard 6,8ton / High heat 6ton) Model: MMY-MUP0721*, MUP0961*, MUP072H1* - 275 -...
Page 276 List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part (MMY-MUP1201*, MUP1441*, MUP096H1*, MUP120H1*) 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 277 Outdoor Unit (Standard 10,12,14ton / High heat 8,10ton) Model: MMY-MUP1201*, MUP1441*, MUP1681*, MUP096H1*, MUP120H1* - 277 -...
Page 278 List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part (MMY-MUP1921*) 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...
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Page 280: Sensor Characteristics
8-10. Sensor Characteristics Outdoor Unit Temperature sensor characteristics Outdoor TS1, TS3, TE1, TE2, TE3, TL1, TL2, TL3 and TO sensors Temperature [°F(°C)] Resistance [kΩ] -4(-20) 101.7 5(-15) 76.3 14(-10) 57.7 23(-5) 44.0 32(0) Resistance 33.8 [kΩ] 41(5) 26.1 (50°F(10°C) 50(10) or above) 20.4 Resistance...
Page 281 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 282 Indoor TC1 sensor Temperature [°F(°C)] Resistance [kΩ] -4(-20) 98.3 5(-15) 73.7 14(-10) 55.8 23(-5) 42.6 32(0) 32.8 Resistance Resistance 41(5) [kΩ] [kΩ] 25.5 (50°F(10°C) (50°F(10°C) 50(10) or above) or above) 20.0 59(15) 15.7 68(20) 12.5 77(25) 10.0 86(30) 95(35) 104(40) 113(45) 122(50) 131(55)
Page 283: Pressure Sensor Output Check
0 to 602 psi (0.5 to 4.73 V output for 0 to 602 psi) 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 VOLT VOLT VOLT...
Page 284 Outdoor Unit PS sensor characteristics 0 to 325 psi (0.5 to 5V output for 0 to 325 psi) 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 285: 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 286: Compressor Backup Operation Setting
9-2. Compressor Backup Operation Setting <Outline> If a failure occurs to one of the compressors installed in outdoor unit, follow the procedure described below to back up the failured compressor by using the remaining, normal compressor. Note: The backup operation of compressor cannot be done for MMY-MUP0721*, MMY-MUP0961*, MMY-MUP1201*, MMY-MUP1441*, MMY-MUP168* MMY-MUP072H1*, MMY-MUP096H1*, MMY-MUP120H1* because only one compressor is installed in these models.
Page 287 (3) Change the connection of wiring as shown in the below. Outdoor Unit (16 ton) Model: MMY-MUP1921* 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 288: Outdoor Unit Backup Operation Setting
9-3. Outdoor Unit Backup Operation Setting <Outline> This product allows outdoor unit backup operation setting to be performed either at the header unit or a follower unit. If any of the failure modes specified below occurs to one of the outdoor units in a multi-outdoor unit system, proceed with outdoor unit backup operation.
Page 289 Uc(U5/U6)wiring treatment Fully close the service valves of the HP/LP gas pipe and the LP gas pipe. Leave the service valve of the liquid pipe open. (If there is leakage from outdoor PMV, fully close the service valve. Setup of failed follower outdoor unit Interface P.C.
Page 290 (6) Turn on the power supply to all the units connected to the system other than the failed follower unit. Determine what to do with the power supply to the failed follower unit in the following manner. <In case of failure in compressor, electrical part, P.C. board> Leave the power supply off.
Page 291: Header Outdoor Unit Backup Operation Setting
9-3-2. Header outdoor unit backup operation setting (failure of header outdoor unit) <Work procedure> (1) Turn off the power supply to all the units connected to the system at the source. [Setup of failed header outdoor unit] (2) Fully close the service valves of the HP/LP gas pipe and the LP gas pipe of the failed outdoor. (3) Leave the service valve of the liquid pipe fully open (to prevent refrigerant stagnation in the failed).
Page 292 (8) Set Bits 1 and 2 of SW100 on the interface P.C. board same as that of the failed header unit (terminator resistance setting). Set SW101 and SW102 Turn on Bit 3 of SW103. identically to failed header SW101 SW102 SW103 1 2 3 4 1 2 3 4...
Page 293: Cooling-Season Outdoor Unit Backup Operation Setting
9-4. Cooling-Season Outdoor Unit Backup Operation Setting <Outline> Limited to summer and other situations where there is no need for heating operation, this function makes it possible to get backup operation up and running quickly without going through the normal setup procedure, regardless of which type of outdoor unit has failed, the header unit or a follower unit.
Page 294: Outdoor Unit Refrigerant Recovery Method
10. OUTDOOR UNIT REFRIGERANT RECOVERY METHOD 10-1. Refrigerant Recovery from Troubled Outdoor Unit (Reclaim) This product supports refrigerant reclaim, a function which allows refrigerant to be recovered from an outdoor unit in need of repair using a normal outdoor unit in a system featuring multiple outdoor units. START 10.1.1 Note for refrigerant recovery operation Can troubled unit energized?
Page 295 (4) [rd] [… FF] will be displayed on the 7-segment display, and reclaim operation will start. * To put the operation on hold midway, turn off the power supply to all the outdoor units, or push SW05 on the interface P.C. board. (5) Approx.
Page 296: Refrigerant Recovery Procedure B
10-1-3. Refrigerant recovery procedure B (Case that the troubled outdoor unit does not turn on) <Outline> If outdoor unit backup operation setting is performed, use an alternative refrigerant recovery procedure as described below, provided that the power cannot be turned on for the troubled outdoor unit. (Refrigerant will be recovered from the failed outdoor unit using the test cooling operation function.) Note: If the power cannot be turned on the troubled outdoor unit, the solenoid valves and PMVs of the unit cannot be turned on, so that it reduces the amount of recovered refrigerant compared to a standard...
Page 297: How To Operate System While Troubled Outdoor Unit Being Repaired
10-2. How to Operate System While Troubled Outdoor Unit Being Repaired <Outline> After refrigerant is recovered from the troubled outdoor unit through a reclaim operation, the overall amount of refrigerant held by the system becomes excessive, and this makes it impossible to operate the remaining outdoor units even though they are not troubled.
Page 298: Work Procedure After Repair
10-3. Work procedure after Repair When vacuuming in the repaired outdoor unit, follow the procedure described below. <Work procedure> (1) Follow the procedure below to fully open PMV 1, 2, 3, and 4 and turn off the outdoor unit within 2 minutes after the operation is completed.
Page 299: Replacing Compressors
11. REPLACING COMPRESSORS 11-1. Compressor Replacement Procedure (Outline) START WARNING In situations such as indoor unit relocation and Is the outdoor unit the only one in the system? repairs, it is not possible to recover all the refrigerant held by the system in the outdoor units. It could cause a serious accident, such as blow out or Manually open Recover refrigerant...
Page 300: Replacement Of Compressors
11-2. Replacement of Compressors <Checking color of oil in troubled compressor> • Lay the troubled compressor down, draw a small amount of oil via the oil equalization pipe, and check its color against color samples. • Determine the number of compressors to be replaced according to the Compressor color checking result.
Page 301 Model: MMY-MUP1441*,1681*,096H1*,120H1* For Standard 12,14 ton, High heat 8,10 ton [When replacing troubled compressor only] <Measuring amount of oil in troubled compressor> Put the troubled compressor above the scale to measure the amount of oil. Amount of oil in troubled compressor: A [gal] = (Weight of compressor as it was dismantled (lbs) - 93.9Ibs) x 0.1249 (Specific volume of oil: 0.1249 [gal/Ibs]) * The weight of the compressor without oil inside is 93.9Ibs.
Page 302 Model: MMY-MUP1921* For Standard 16 ton [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 303 <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 1.84 ft*Ibs. • The tightening torque of the hexagonal bolts, used to mount the compressor, is 14.46 ft*Ibs. •...
Page 304: 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 305 <MMY-MUP0721*,0961* and 072H1*> Check items and procedures to follow when checking oil circuit with compressor(s) disconnected Check item Location Procedure 1) With PMV 1, 2 and 4 fully closed, apply pressure to the check joint of liquid pipe with nitrogen, and check the pressure at the check joint of discharge pipe.
Page 306 <MMY-MUP1201*,1441*,1681*,096H1*,120H1*> Check items and procedures to follow when checking oil circuit with compressor(s) disconnected Check item Location Procedure 1) With PMV 1, 2, 3 and 4 fully closed, apply pressure to the check joint of liquid pipe with nitrogen, and check the pressure at the check joint of discharge pipe.
Page 307 <MMY-MUP1921*> Check items and procedures to follow when checking oil circuit with compressor(s) disconnected Check item Location Procedure 1) With PMV 1, 2, 3 and 4 fully closed, apply pressure to the check joint of liquid pipe with nitrogen, and check the pressure at the check joint of discharge pipe.
Page 308: Outdoor Unit Parts Replacement Methods
12. OUTDOOR UNIT PARTS REPLACEMENT METHODS Part Work procedure Remarks Cabinet WARNING NFC holder Insert each NFC holder Wear a pair of gloves. claw of NFC holder into Otherwise, you will risk an injury involving a replacement each squre hole part or some other object.
Page 309 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 310 Part Work procedure Remarks WARNING Heat Discharge cabinet M5 x 0.4" (10mm), 8 pcs exchanger Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. < 6ton, 8ton, High heat 6ton > 1.
Page 311 Part Work procedure Remarks WARNING Heat 4 x 0.55" (14mm), 2 pcs exchanger Wear a pair of gloves. Discharge cabinet Otherwise, you will risk an injury involving a replacement M5 x 0.4" (10mm), 12 pcs part or some other object. <...
Page 312 Part Work procedure Remarks Heat 3) Cut the pipes at the heat exchanger (Fig.21, Fig.22 exchanger < 6ton, 8ton > < 10ton, 12ton, 14ton, 16ton > < High heat 6ton > < High heat 8ton, 10ton > (1) 1) Header pipe at the gas side (Main heat exchanger) (1) 1) Header pipe at the gas side (Main heat exchanger)
Page 313 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. 1. Detachment 5) Screw 1) Stop the air conditioner operation, and turn off the circuit breaker.
Page 314 Part Work procedure Remarks 2. Attachment 5) Fixing screws for the Inverter box (6 pcs). assembly (Equal to 6-16 ton) 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.
Page 315 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 316 Part Work procedure Remarks WARNING Reactor 3) Reactor box assembly Wear a pair of gloves. Standard Otherwise, you will risk an injury involving a replacement 6,8 ton part or some other object. High heat 6 ton 1. Detachment 1) Stop the air conditioner operation, and turn off the circuit breaker.
Page 317 Part Work procedure Remarks WARNING Reactor assembly 3) Fixed plate of reactor box Wear a pair of gloves. Standard Otherwise, you will risk an injury involving a replacement 10~16 ton part or some other object. High heat 8,10 ton 1. Detachment 1) Stop the air conditioner operation, and turn off the circuit breaker.
Page 318 Part Work procedure Remarks WARNING Compressor <Standard 6,8 ton> <High heat 6 ton> Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. Top cover Side cover Remove the cover while lifting it diagonally Front cover 1.
Page 319 Part Work procedure Remarks 2. Attachment 460V models (6~16ton) 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 320 Part Work procedure Remarks 4-way WARNING valve - Wear a pair of gloves. detachment/ Otherwise, you will risk an injury involving a replacement attachment part or some other object. Standard 6,8 ton 1.Detachment High heat 1)Carry out work of No. 1 Cabinet 6 ton and No.4 Inverter assembly.
Page 321 Part Work procedure Remarks 4-way WARNING valve - Wear a pair of gloves. detachment/ attachment Otherwise, you will risk an injury involving a replacement (continued) part or some other object. Standard 6,8 ton 2.Attachment High heat 1)Brazing the diverted piping connected to 6 ton the top and bottom of the 4-way valves (service part).
Page 322 Part Work procedure Remarks 4-way WARNING valve - Wear a pair of gloves. detachment/ Otherwise, you will risk an injury involving a replacement attachment part or some other object. Standard 10~16 ton 1.Detachment High heat 1)Carry out work of No. 1 Cabinet 8,10 ton and No.4 Inverter assembly.
Page 323 Part Work procedure Remarks 4-way WARNING valve - Wear a pair of gloves. detachment/ attachment Otherwise, you will risk an injury involving a replacement (continued) part or some other object. Standard 10~16 ton 2.Attachment High heat 1)Brazing the diverted piping connected to 8,10 ton the top and bottom of the 4-way valves (service part).
Page 324 Part Work procedure Remarks Accumulator- WARNING detachment/ Wear a pair of gloves. attachment Otherwise, you will risk an injury involving a replacement Standard part or some other object. 6,8 ton High heat 1.Detachment 6 ton 1)1)Carry out work of No. 1 Cabinet and No.4 Inverter assembly.
Page 325 Part Work procedure Remarks Accumulator- WARNING detachment/ Wear a pair of gloves. attachment Otherwise, you will risk an injury involving a replacement Standard part or some other object. 10~16 ton High heat 1.Detachment 8,10 ton 1)1)Carry out work of No. 1 Cabinet and No.4 Inverter assembly.
Page 326: 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 43T60440 Power supply terminal block TERMINAL (100A) AC600V/100A, 3P ― 43TN9878 Noise Filter P.C.
Page 327 Parts code Description Applicable model Parts Product code Specifications 43T60440 Power supply terminal block ― TERMINAL (100A) AC600V/100A, 3P 43TN9876 Noise Filter P.C. board (2) MCC-1749 S-ASM-PCB (N/F) ― 43T55396 Line filter ― LINE-FILTER 0.4mH/AC450V/50A 43TNV345 Interface P.C. board MCC-1747 S-ASM-PCB (I/F) ―...
Page 328: Configuration Of Inverter Assembly
13-1-2. Configuration of inverter assembly MMY-MUP0721FT6* MMY-MUP0961FT6* MMY-MUP072H1FT6* The Interface P.C. board sub-assembly Interface P.C. board (MCC-1747) Inverter P.C. board for Fan(1) Remove the Interface P.C. board sub-assembly (MCC-1734) Thermistor Magnet Contactor Noise Filter P.C. board(1) (MCC-1749) Line filter Inverter P.C. board Communication terminal block for Compressor (1) (MCC-1729)
Page 329 MMY-MUP1201FT6* The Interface P.C. board sub-assembly Interface P.C. board Inverter P.C. board for Fan(1) 1 (MCC-1734) (MCC-1747) Inverter P.C. board for Fan(1) 2 Remove the Interface P.C. board sub-assembly (MCC-1734) Thermistor Magnet Contactor Noise Filter P.C. board (1) (MCC-1749 ) Line filter Inverter P.C.
Page 330 MMY-MUP1441FT6* MMY-MUP1681FT6* MMY-MUP096H1FT6* MMY-MUP120H1FT6* The Interface P.C. board sub-assembly Interface P.C. board Inverter P.C. board for Fan(1) 1 (MCC-1734) (MCC-1747) Inverter P.C. board for Fan(1) 2 Remove the Interface P.C. board sub-assembly (MCC-1734) Thermistor Magnet Contactor Noise Filter P.C. board (1) (MCC-1749 ) Line filter Inverter P.C.
Page 331 MMY-MUP1921FT6* The Interface P.C. board sub-assembly Interface P.C. board Inverter P.C. board for Fan(1) 1 (MCC-1734) (MCC-1747) Inverter P.C. board for Fan(1) 2 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 332 MMY-MUP0721FT9* MMY-MUP0961FT9* MMY-MUP072H1FT9* Interface P.C. board (MCC-1747) The Interface P.C. board sub-assembly Inverter P.C. board for Fan(2) (MCC-1734) Remove the Interface P.C. board sub-assembly Thermistor Magnet Contactor Noise Filter P.C. board (2 ) (MCC-1749 ) Line filter Communication terminal block Power supply terminal block Capacitor P.C.
Page 333 MMY-MUP1201FT9* Interface P.C. board (MCC-1747) The Interface P.C. board sub-assembly Inverter P.C. board for Fan(2) 1 (MCC-1734) Inverter P.C. board for Fan(2) 2 Remove the Interface P.C. board sub-assembly (MCC-1734) Thermistor2 Magnet Contactor2 Thermistor1 Magnet Contactor1 Noise Filter P.C. board (3) (MCC-1749) Line filter Communication terminal block...
Page 334 MMY-MUP1441FT9* MMY-MUP1681FT9* MMY-MUP096H1FT9* MMY-MUP120H1FT9* Interface P.C. board (MCC-1747) The Interface P.C. board sub-assembly Inverter P.C. board for Fan(2) 1 (MCC-1734) Inverter P.C. board for Fan(2) 2 Remove the Interface P.C. board sub-assembly (MCC-1734) Thermistor2 Magnet Contactor2 Thermistor1 Magnet Contactor1 Noise Filter P.C. board (3) (MCC-1749) Line filter Communication terminal block...
Page 335: Interface P.c. Board (Mcc-1747) Replacement Procedure
13-1-3. Interface P.C. Board (MCC-1747) Replacement Procedure Target model 43TNV345: ALL models This Interface service P.C. board is commonly installed in different models. After replacing the service board, Please change the model. Included items: ①MCC-1747 : 1pcs ②Spacer : 4pcs ③Spacer : 2pcs ④Support : 1pcs ⑤Bush : 3pcs...
Page 336 “L10: Outdoor capacity not set” check code is displayed on the 7-segment display. (13) Perform a model change by the following flow. By completing this procedure, it is restored to the state before a model setup and a setup of the outdoor DN code (O.DN) exchanging.
Page 337 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 338 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 339: 1). Compressor P.c. Board (Mcc-1729) Replacement Procedure
13-1-4(1). Compressor P.C. Board (MCC-1729) Replacement Procedure Target model 43TN9880: MMY-MUP0721FT6*/0961FT6*/1201FT6*/1921FT6*/072H1FT6* 43TN9881: MMY-MUP1441FT6*/1681FT6*/096H1FT6*/120H1FT6* 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 340 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. And fix the Compressor P.C. board to the outdoor control unit by the spacers (②). Uniformly apply the Silicone Thermal Grease to the heat dissipating surfaces of the IPM (IC201) and rectifier (DB01).
Page 341: 2). Compressor P.c. Board (Mcc-1746) Replacement Procedure
13-1-4(2). Compressor P.C. Board (MCC-1746) Replacement Procedure Target model 43TN9883: MMY-MUP0721FT9*/0961FT9*/1201FT9*/072H1FT9* 43TN9884: MMY-MUP1441FT9*/1681FT9*/096H1FT9*/120H1FT9* 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 ② Spacer : 4pcs ③...
Page 342 (5) Remove 5 screws(⑦：4pcs(M4), ⑧：1pcs(M3) ). (6) Keep the removed screws as they will be reused. (7) Remove the P.C. board from the 4 spacers (②) by round-nose pliers. Set the DIP switch (SW800) settings of the service board to match as before replacement. (9) If spacers (②) are damaged, replace it and attach collars(④) and bushes(③) to the service P.C.
Page 343: Capacitor P.c.board (Mcc-1711) Replacement Procedure
13-1-5. Capacitor P.C. Board (MCC-1711) Replacement Procedure Target model 43TN9885: MMY-MUP0721FT9*/0961FT9*/1201FT9*/072H1FT9* 43TN9886: MMY-MUP1441FT9*/1681FT9*/096H1FT9*/120H1FT9* Included items: ① MCC-1711 : 1pcs ② Spacer : 2pcs ③ Bush : ④ Collar : 5pcs 5pcs Replacement Steps: ⑤ Screw(M6) ⑦ Screw(M3) (1) Turn off the power supply of the outdoor unit and wait at least 5 minutes for the capacitor to discharge.
Page 344 (8) If spacers (②) are damaged, replace it and attach collars(④) and bushes(③) to the service P.C. board(①). ①P.C. board ③Bush ④Collar (9) Attach the Capacitor P.C. board with the five screws(⑦：5pcs (M3) ) removed in step (5). (10) Attach the reactor lead wire using the 2 or 4 screws removed in step (4) (⑥：2 or 4 pcs (M5) ). For the model has REACTOR 2, be careful not to make a mistake in the combination of lead wires.
Page 345: Fan-Motor P.c.board (Mcc-1734) Replacement Procedure
13-1-6. Fan-Motor P.C. Board (MCC-1734) Replacement Procedure Target model 43T6W894: MMY-MUP****FT6* 43TN9882: MMY-MUP****FT9* This board is commonly installed in different models. Set the DIP switch (SW800) settings of the service board to match as before replacement. Included items: ① MCC-1734 : 1pcs ②...
Page 346: 1). Noise Filter P.c. Board (Mcc-1749) Replacement Procedure
13-1-7(1). Noise Filter P.C. Board (MCC-1749) Replacement Procedure Target model 43TN9878: MMY-MUP****FT6* Included items: ① MCC-1748 : 1pcs ② Spacer : 4pcs ③ Spacer : 2pcs ④ Bush : 2pcs Replacement Steps: Push Noise Filter P.C. board (1) Turn off the power supply of the outdoor unit Lock pin 43TN9878 and wait at least 5 minutes for the capacitor...
Page 347: 2). Noise Filter P.c. Board (Mcc-1749) Replacement Procedure
13-1-7(2). Noise Filter P.C. Board (MCC-1749) Replacement Procedure Target model 43TN9876: MMY-MUP0721FT9*/0961FT9*/072H1FT9* Included items: ① MCC-1749 : 1pcs ② Spacer : 4pcs ③ Spacer : 2pcs ④ Bush : 6pcs Replacement Steps: (1) Turn off the power supply of the outdoor unit and wait at least 5 minutes for the capacitor to discharge.
Page 348: 3). Noise Filter P.c. Board (Mcc-1749) Replacement Procedure
13-1-7(3). Noise Filter P.C. Board (MCC-1749) Replacement Procedure Target model 43TN9877: MMY-MUP1201FT9*/1441FT9*/1681FT9*/096H1FT9*/120H1FT9* Included items: ① MCC-1749 : 1pcs ② Spacer : 4pcs ③ Spacer : 2pcs ④ Bush : 2pcs Replacement Steps: Push Noise Filter P.C. board (1) Turn off the power supply of the outdoor unit Lock pin (43TN9877) and wait at least 5 minutes for the capacitor to...
Page 349: Fs Unit Parts Replacement Methods
14. FS UNIT PARTS REPLACEMENT METHODS 14-1. Flow Selector unit Multi-port type Part Work procedure Remarks Electrical control ⚠︎ Screws WARNING box cover (upper side) ―――――――――――――――― ・Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. ・Stop the power supply of the air conditioner and turn off switch of the power supply breaker.
Page 350 Part Work procedure Remarks Unit 5-8 (*FU8PUL) / (*FU12PUL) Card edge spacer CN04: Earth wire (Faston tab) CN67: Power supply wires (Black) CN200: Communication wire (Terminal block) CN309: Power supply wires (Yellow) CN400: Communication wire (Terminal block) CN580: Communication wire (Yellow) CN581: Communication wire (Yellow) CN602: PMV-S5 (Blue) MCC-1770...
Page 351 Part Work procedure Remarks 2 Attachment SW01 (Factory setting) 1) Fix the control P.C. board to the card edge spacers. (4 places) 1 2 3 4 2) Connect the connectors disconnected in item 1-2) as before. For connectors, check there is no missing or contact failure.
Page 352 Part Work procedure Remarks Terminal 1. Detachment 1) Perform work of procedure 1-1 Detach- ment. (Electrical control box cover) Remove 2) Remove the wires from the terminal. from the terminal. 3) Remove the screws fixing the terminal. Screws (M4 x 0.6" (14 mm), 2 pcs) 2 Attachment 1) Fix the terminal with screws as before.
Page 353 Part Work procedure Remarks 1. Detachment Coil-PMV Wire clamp 1) Perform work of procedure 1. -1) (Electrical Binding band control box cover) and 4. -1) (Top plate). 2) Cut the binding band as appropriate and remove the PMV wire from the wire clamp. 3) Disconnect the PMV wire connector from the control P.C.
Page 354: Flow Selector Unit Single-Port Type
14-2. Flow Selector unit Single-port type Part Work procedure Remarks ⚠︎ Electrical control WARNING box cover ―――――――――――――――― ・Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. ・Stop the power supply of the air conditioner and turn off switch of the power supply breaker.
Page 355 Part Work procedure Remarks 2 Attachment 1) Fix the control P.C. board to the card edge spacers. (4 places) 2) Connect the connectors disconnected in item 1-2) as before. For connectors, check there is no missing or contact failure. The lead wire should be Lead wire wired so as not to touch the cement resistance R03.
Page 356 Part Work procedure Remarks Terminal 1. Detachment Remove from the 1) Perform work of procedure 1-1 Detach- terminal. ment. (Electrical control box cover) 2) Remove the wires from the terminal. 3) Remove the screws fixing the terminal. (M4 x 0.6" (14 mm), 2 pcs) 2 Attachment Screws 1) Fix the terminal with screws as before.
Page 357 Part Work procedure Remarks 1. Detachment Coil-PMV Wire clamp 1) Perform work of procedure 1. -1) (Electrical control box cover) and 4. -1) (Top plate). 2) Remove the PMV wire from the wire clamp as appropriate. 3) Disconnect the PMV wire connector from the control P.C.
Page 358 Part Work procedure Remarks Before the work, be sure to recover the BODY-SERVE refrigerant of outdoor unit into cylinders or another unit connected to the same system. Screws (Refer to the chapter "Refrigerant Recovery 1. Detachment Electrical control box 1) Remove connecting pipes from the Flow Selector unit 2) Remove the Flow Selector unit from three hanging-bolts.
Page 359: Exploded Diagram/Parts List
15. EXPLODED DIAGRAM/PARTS LIST 15-1. Outdoor unit MMY-MUP0721FT6P-UL MMY-MUP0961FT6P-UL MMY-MUP072H1FT6PUL - 359 -...
Page 360 MMY-MUP0721FT9P-UL MMY-MUP0961FT9P-UL MMY-MUP072H1FT9PUL 076 077 - 360 -...
Page 361 MMY-MUP0721FT6P-UL, MMY-MUP0961FT6P-UL, MMY-MUP072H1FT6PUL, MMY-MUP0721FT9P-UL, MMY-MUP0961FT9P-UL, MMY-MUP072H1FT9PUL 045 050 063 047 051 063 037 039 051 052 063 038 040 047 052 047 052 063 038 040 045 052 063 049 050 057 058 032 036 031 034 030 033 047 052...
Page 362 MMY-MUP0721FT6P-UL, MMY-MUP0961FT6P-UL, MMY-MUP072H1FT6PUL, MMY-MUP0721FT9P-UL, MMY-MUP0961FT9P-UL, MMY-MUP072H1FT9PUL Fan motor PMV1 Main heat exchanger Sub heat exchanger PMV2 Hot-gas heat exchanger φ3.0*500L SV5B 4WV3 4WV2 4WV1 High- pressure sensor Low-pressure φ0.8*1600L sensor φ1.0*500L SV3D Fusible plug High- pressure switch SV41 Subcool Heat Exchanger SV3F φ0.8*1800L...
Page 363 MMY-MUP1201FT6P-UL - 363 -...
Page 364 MMY-MUP1201FT9P-UL - 364 -...
Page 365 MMY-MUP1201FT6P-UL, MMY-MUP1201FT9P-UL 045 050 063 047 052 063 047 051 063 046 048 030 033 028 029 038 040 031 035 037 039 031 034 037 039 048 052 032 036 (Back side of valve fixing plate) - 365 -...
Page 366 MMY-MUP1441FT6P-UL MMY-MUP1681FT6P-UL MMY-MUP096H1FT6PUL MMY-MUP120H1FT6PUL - 366 -...
Page 367 MMY-MUP1441FT9P-UL MMY-MUP1681FT9P-UL MMY-MUP096H1FT9PUL MMY-MUP120H1FT9PUL - 367 -...
Page 368 MMY-MUP1441FT6P-UL, MMY-MUP1681FT6P-UL, MMY-MUP096H1FT6PUL, MMY-MUP120H1FT6PUL, MMY-MUP1441FT9P-UL, MMY-MUP1681FT9P-UL, MMY-MUP096H1FT9PUL, MMY-MUP120H1FT9PUL 045 050 063 046 052 063 037 039 046 051 063 053 063 046 048 030 033 038 040 028 029 031 035 031 034 037 039 048 052 024 046 032 036 (Back side of valve fixing plate) - 368 -...
Page 369 MMY-MUP1201FT6P-UL, MMY-MUP1441FT6P-UL, MMY-MUP1681FT6P-UL, MMY-MUP096H1FT6PUL, MMY-MUP120H1FT6PUL, MMY-MUP1201FT9P-UL, MMY-MUP1441FT9P-UL, MMY-MUP1681FT9P-UL, MMY-MUP096H1FT9PUL, MMY-MUP120H1FT9PUL, Fan 1 Fan 2 only Fan motor Fan motor MMY-MUP1201F* 066 067 except MMY-MUP1201F* Left side Main heat exchanger PMV1 Right side Main heat exchanger Left side Sub heat exchanger PMV2 Right side Sub heat exchanger...
Page 370 MMY-MUP1921FT6P-UL - 370 -...
Page 371 MMY-MUP1921FT6P-UL 047 051 063 046 052 063 048 052 046 048 030 033 038 040 045 050 063 028 029 031 035 031 034 045 052 063 037 039 032 036 (Back side of valve fixing plate) - 371 -...
Page 372 MMY-MUP1921FT6P-UL Fan 1 Fan 2 Fan motor Fan motor Left side Main heat exchanger PMV1 Right side Main heat exchanger Left side Sub heat exchanger PMV2 Right side Sub heat exchanger Hot-gas heat exchanger Hot-gas heat exchanger SV5B PMV3 4WV3 4WV2 4WV1 High-pressure...
Page 373 460V ＊CDU Q'ty/Set　MMY-MUP Ref. No. Part No. Parts Name Description 0721FT6* 0961FT6* 072H1FT6* 1201FT6* 1441FT6* 1681FT6* 096H1FT6* 120H1FT6* 1921FT6* 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 43T20360 ASM-COAT-FAN-M MOTOR, FAN, DC530-620V, 2200L 43T00817 ASM-C-BASE-MOT MOTOR,BASE 43T00913 ASM-HINS(PLATE...
Page 374 43T19393 GUARD-FIN-SIDE FIN GUARD, SIDE 43T19394 GUARD-FIN-SIDE FIN GUARD, SIDE 43T19395 GUARD-FIN-BACK FIN GUARD, BACK 43T19396 GUARD-FIN-BACK FIN GUARD, BACK 43T01345 MARK-TC MARK, TOSHIBA CARRIER 43T01359 MARK(SHRM-U) MARK, SHRM-u 43T01360 MARK(ELITE-HEAT MARK, ELITE-HEAT 43T00925 ASM-GUARD-WIRE WIRE GUARD - 374 -...
Page 375 208-230V ＊CDU Q'ty/Set　MMY-MUP Ref. No. Part No. Parts Name Description 0721FT9* 0961FT9* 072H1FT9* 1201FT9* 1441FT9* 1681FT9* 096H1FT9* 120H1FT9* 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 43T21539 ASM-COAT-FAN-M MOTOR, FAN, DC280-340V, 2200L 43T00817 ASM-C-BASE-MOT MOTOR,BASE 43T00913 ASM-HINS(PLATE...
Page 376 43T19393 GUARD-FIN-SIDE FIN GUARD, SIDE 43T19394 GUARD-FIN-SIDE FIN GUARD, SIDE 43T19395 GUARD-FIN-BACK FIN GUARD, BACK 43T19396 GUARD-FIN-BACK FIN GUARD, BACK 43T01345 MARK-TC MARK, TOSHIBA CARRIER 43T01359 MARK(SHRM-U) MARK, SHRM-u 43T01360 MARK(ELITE-HEAT MARK, ELITE-HEAT 43T00925 ASM-GUARD-WIRE WIRE GUARD - 376 -...
Page 377 Inverter Assembly Model： MMY-MUP0721FT6*, 0961FT6*, 072H1FT6* The Interface P.C.B. sub-assembly Remove the Interface P.C.B. sub-assembly. Ref. No. Part No. Description Q'ty/Set Drawing No. 43T60440 TERMINAL, 3P, 100A 1001606403 43TN9878 PC BOARD ASSY,NOISE FILTER,MCC-1749 1142190403 43T55397 FILTER, LINE 1004141201 43TNV345 PC BOARD ASSY,INTERFACE,MCC-1747 1142090505 43TN9880 PC BOARD ASSY,COMP-IPDU,MCC-1729...
Page 378 Inverter Assembly Model： MMY-MUP1201FT6* The Interface P.C.B. sub-assembly Remove the Interface P.C.B. sub-assembly. Ref. No. Part No. Description Q'ty/Set Drawing No. 43T60440 TERMINAL, 3P, 100A 1001606403 43TN9878 PC BOARD ASSY,NOISE FILTER,MCC-1749 1142190403 43T55397 FILTER, LINE 1004141201 43TNV345 PC BOARD ASSY,INTERFACE,MCC-1747 1142090505 43TN9880 PC BOARD ASSY,COMP-IPDU,MCC-1729...
Page 379 Inverter Assembly Model： MMY-MUP1441FT6*, 1681FT6*, 096H1FT6*, 120H1FT6* The Interface P.C.B. sub-assembly Remove the Interface P.C.B. sub-assembly. Ref. No. Part No. Description Q'ty/Set Drawing No. 43T60440 TERMINAL, 3P, 100A 1001606403 43TN9878 PC BOARD ASSY,NOISE FILTER,MCC-1749 1142190403 43T55397 FILTER, LINE 1004141201 43TNV345 PC BOARD ASSY,INTERFACE,MCC-1747 1142090505 43TN9881...
Page 380 Inverter Assembly Model： MMY-MUP1921FT6* The Interface P.C.B. sub-assembly Remove the Interface P.C.B. sub-assembly. Ref. No. Part No. Description Q'ty/Set Drawing No. 43T60440 TERMINAL, 3P, 100A 1001606403 43TN9878 PC BOARD ASSY,NOISE FILTER,MCC-1749 1142190403 43T55397 FILTER, LINE 1004141201 43TNV345 PC BOARD ASSY,INTERFACE,MCC-1747 1142090505 43TN9880 PC BOARD ASSY,COMP-IPDU,MCC-1729...
Page 381 Inverter Assembly Model： MMY-MUP0721FT9*, 0961FT9*, 072H1FT9* The Interface P.C.B. sub-assembly Remove the Interface P.C.B. sub-assembly. Ref. No. Part No. Description Q'ty/Set Drawing No. 43T60440 TERMINAL, 3P, 100A 1001606403 43TN9876 PC BOARD ASSY,NOISE FILTER,MCC-1749 1142190401 43T55396 FILTER, LINE 1004135501 43TNV345 PC BOARD ASSY,INTERFACE,MCC-1747 1142090505 43TN9883 PC BOARD ASSY,COMP-IPDU,MCC-1746...
Page 382 Inverter Assembly Model： MMY-MUP1201FT9* The Interface P.C.B. sub-assembly Remove the Interface P.C.B. sub-assembly. Ref. No. Part No. Description Q'ty/Set Drawing No. 43T60440 TERMINAL, 3P, 100A 1001606403 43TN9877 PC BOARD ASSY,NOISE FILTER,MCC-1749 1142190402 43T60608 FUSE, 150A 1004135301 43T55397 FILTER, LINE 1004141201 43TNV345 PC BOARD ASSY,INTERFACE,MCC-1747 1142090505...
Page 383 Inverter Assembly Model： MMY-MUP1441FT9*, 1681FT9*, 096H1FT9*, 120H1FT9* The Interface P.C.B. sub-assembly Remove the Interface P.C.B. sub-assembly. Ref. No. Part No. Description Q'ty/Set Drawing No. 43T60440 TERMINAL, 3P, 100A 1001606403 43TN9877 PC BOARD ASSY,NOISE FILTER,MCC-1749 1142190402 43T60608 FUSE, 150A 1004135301 43T55397 FILTER, LINE 1004141201 43TNV345...
Page 384: Flow Selector Unit Multi-Port Type
15-2. Flow Selector unit Multi-port type Model: RBM-Y0611FU4PUL, RBM-Y0611FU8PUL, RBM-Y0611FU12PUL RBM-Y0611*** Location Part No. Description FU4PUL FU8PUL FU12PUL 43TN9649 PC BOARD ASSY, MCC-1770 43T46546 COIL, PMV, PAM-MD12TF-305 43T46547 COIL, PMV, PAM-MD12TF-306 43T60569 TERMINAL-2P 43T96309 BUSHING - 384 -...
Page 385: Flow Selector Unit Single-Port Type
15-3. Flow Selector unit Single-port type Model: RBM-Y0611FUPUL, RBM-Y0961FUPUL RBM-Y***FUPUL Location Part No. Description 0611 0961 43TN9650 PC BOARD ASSY, MCC-1771 43T46546 COIL, PMV, PAM-MD12TF-305 43T46547 COIL, PMV, PAM-MD12TF-306 43T60569 TERMINAL-2P 43T96309 BUSHING 43T00943 BODY ASSY, SERVICE 43T00944 BODY ASSY, SERVICE - 385 -...

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Toshiba MMY-MUP0721FT6P-UL Service Manual

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