Midea MGCT-F30W/PN1 Manual
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Midea MGCT-F30W/PN1 Manual

Midea MGCT-F30W/PN1 Manual

R410a tropical air-cooled scroll chiller unit 60hz
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R410A tropical air-cooled scroll chiller unit 60Hz
1 General information ....................................................................................... 3
2. Features ......................................................................................................... 4
3. Specification ................................................................................................. 8
4 Dimension .................................................................................................... 14
5 Refrigeration system drawing ..................................................................... 22
6. Piping diagram ............................................................................................ 24
7 Wiring diagram ............................................................................................. 28
8 Electric characteristics ................................................................................ 36
9 Capacity tables ............................................................................................ 38
10 Exploded view ............................................................................................ 46
11 Trouble shooting ........................................................................................ 61
12 Installation .................................................................................................. 76
13 Commissioning ........................................................................................ 101
14 Maintenance ............................................................................................. 102
15 Control system ......................................................................................... 106
Appendix ..................................................................................................... 167
2
Content
MCAC-ATSM-2014-09

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  • Page 1: Table Of Contents

    R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Content 1 General information ..................3 2. Features ......................4 3. Specification ....................8 4 Dimension ....................14 5 Refrigeration system drawing ..............22 6. Piping diagram .................... 24 7 Wiring diagram ..................... 28 8 Electric characteristics ................

  • Page 2: General Information

    C: Double pipe Light chiller system Midea 1.2 Product list Heat exchanger Maximum Maximum Model Power supply Wired controller type combinations capacity(kW) MGCT-F30W/PN1 380V/3Ph/60Hz Double pipe KJRM-120D/BMK-E MGCT-D30W/PN1 380V/3Ph/60Hz Double pipe KJRM-120D/BMK-E MGBT-F60W/PN1 380V/3Ph/60Hz Shell and tube KJRM-120D/BMK-E MGBT-F120W/PN1 380V/3Ph/60Hz...

  • Page 3: Features

    R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 1.3 External appearance 30kW 60kW 180kW 120kW...
  • Page 4 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 2. Features 1). Wide range of outlet water temperature Cooling: 5~17˚C (7˚C is default, set in factory), 0~17˚C can be available by switch the S5 on PCB, the antifreeze must be put into pipeline. Heating: 40~50˚C (45˚C is default, set in factory), 22~50˚C can be available by switch the address.
  • Page 5 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09  Chlorine-free and environmental friendly refrigerant, zero ozone depletion potential.  High-density refrigerant, therefore, less refrigerant required.  Leak-tight refrigerant circuit, Brazed refrigerant connections for increased leak-tightness. 6) Economical operation New design adopts electronic expansion valve precise refrigerant control in wider range. Electronic expansion valve allows operation at lower condensing pressure, adjustment can be made fast linear response, making the system more stable output, the indoor temperature more uniform, and enhance human comfortable.
  • Page 6 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 10). Applicable temperature range Mode Ambient temperature range Water outlet temperature range Cooling 10˚C ~52˚C 0~17˚C(The antifreeze must be added.) Heating -10˚C ~24˚C 22˚C ~50˚C Ambient temperature range 10˚C Cooling range 52˚C -10˚C Heating range 24˚C...

  • Page 7: Specification

    R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 3. Specification Model MGCT-F30W/PN1 MGCT-D30W/PN1 Cooling Capacity (*1) Btu/h 102,300 102,300 25.8 25.8 Cooling Capacity (*2) Btu/h 88,030 88,030 Heating Capacity Cooling (*1) 10.0 10.0 Cooling rated current (*1) 16.3 16.3 Cooling (*2)
  • Page 8 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Net weight 837.8 837.8 Weight Gross weight 881.8 881.8 Power wire ×No. 10×4+6 ×1 10×4+6 ×1 Connection wiring Signal wire ×No. 0.75×3-core with shielding Control type Wired controller Protection for over-high discharge pressure Protection for over-low suction pressure Power supply phase sequence protection Anti-freezing protection in cooling mode...
  • Page 9 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Model MGBT-F60W/PN1 MGBT-F120W/PN1 Cooling Capacity (*1) Btu/h 204,700 409,400 51.6 103.2 Cooling Capacity (*2) Btu/h 176,100 352,100 Heating Capacity Cooling (*1) 19.7 39.4 Cooling rated current (*1) Cooling (*2) 23.64 47.28 Power input Cooling rated current (*2) 75.6 151.2...
  • Page 10 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Signal wire ×No 0.75×3-core with shielding 0.75×3-core with shielding Control type Wired controller Wired controller Protection for over-high discharge pressure Protection for over-low suction pressure Power supply phase sequence protection Anti-freezing protection in cooling mode Anti-freezing protection in winter Protection for compressor over current Safety protection device...
  • Page 11 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Model MGBT-F180W/PN1 Cooling Capacity (*1) Btu/h 614,100 154.8 Cooling Capacity (*2) Btu/h 528,200 Heating Capacity Cooling (*1) 59.1 Cooling rated current (*1) Cooling (*2) 70.92 Power input Cooling rated current (*2) 226.8 Heating 59.7 Heating rated current...
  • Page 12 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Signal wire ×No. 0.75×3-core with shielding Control type Wired controller 12) Protection for over-high discharge pressure 13) Protection for over-low suction pressure 14) Power supply phase sequence protection 15) Anti-freezing protection in cooling mode 16) Anti-freezing protection in winter 17) Protection for compressor over current 18) Protection for compressor overload...

  • Page 13: Dimension

    R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 4 Dimension 30kW module Unit Model 1514 1865 MGCT-F30W/PN1 MGCT-D30W/PN1 inch 59.6 33.11 73.43 4.53 12.4 6.77...
  • Page 14 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Name Top cover Air outlet Air inlet Water outlet Water inlet Electric control box...
  • Page 15 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 60kW module Front view Top view Unit Model 2000 1880 1420 1500 MGBT-F60W/PN1 inch 78.74 35.4 13.78 55.91 8.86 59.06 19.92 20.87 36.61 17.72...
  • Page 16 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Name Top cover Air outlet Air inlet Water outlet Compressor Electric control box Water inlet...
  • Page 17 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 120kW module Front view Side view Top view Anchor hole Unit Model 2000 1685 2080 1420 1550 1586 MGBT-F120W/PN1 inch 78.74 66.34 81.89 13.98 55.91 19.92 61.02 62.44...
  • Page 18 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Name Top cover Condenser Compressor Evaporator Electric control box air inlet Water outlet Water inlet Compressor...
  • Page 19 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 180kW module Model unit 2850 2000 2110 3470 2156 1888 2388 MGBT-F180W/PN1 inch 112.2 78.74 83.07 136.61 84.88 19.92 74.33 94.02...
  • Page 20 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Name Top cover Compressor Evaporator Water outlet Electric control box Water inlet Condenser...

  • Page 21: Refrigeration System Drawing

    R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 5 Refrigeration system drawing 5.1 30kW module refrigeration system sketch drawing Each module has two compressors with one separate unit, one double pipe evaporator for two refrigerant systems. Condenser 4-way valve A 4-way valve B Compressor A Compressor B...
  • Page 22 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 5.3 120kW module refrigeration system sketch drawing Each module has four compressors with two separate units, one shell and tube evaporator for four refrigerant systems. low pressure cylinder B Unit 2 4-Way valve B 2-1/2"...

  • Page 23: Piping Diagram

    R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 6. Piping diagram 6.1 30kW module water pipeline sketch drawing The table below describes the symbols. Symbol Symbol explanation Symbol Symbol explanation Stop valve Y-shaped filter Pressure gauge Thermometer Water flow switch Circulating pump Gate valve Check valve...
  • Page 24 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 6.2 60kW module water pipeline sketch drawing Expansion tank Water replenishing Main unit Dirt discharge valve Differential pressure by-pass valve Drain valve Terminal Auxiliary electric heater Two-way valve Three-way valve The table below describes the symbols. Symbol Symbol explanation Symbol...
  • Page 25 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 6.3 120kW module water pipeline sketch drawing The table below describes the symbols. Symbol Symbol explanation Symbol Symbol explanation Stop valve Y-shaped filter Pressure gauge Thermometer Water flow switch Circulating pump Gate valve Check valve Flexible joint Automatic discharge valve...
  • Page 26 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 6.4 180kW module water pipeline sketch drawing The table below describes the symbols. Symbol Symbol explanation Symbol Symbol explanation Stop valve Y-shaped filter Pressure gauge Thermometer Water flow switch Circulating pump Gate valve Check valve Flexible joint Automatic discharge valve...

  • Page 27: Wiring Diagram

    R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 7 Wiring diagram 7.1 Wiring diagram 30kW module...
  • Page 28 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 60kW module...
  • Page 29 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 120kW module...
  • Page 30 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 180kW module...
  • Page 31 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 7.2 Networking communication schematic 30kW module...
  • Page 32 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 60kW module...
  • Page 33 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 120kW module...
  • Page 34 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 180kW module...

  • Page 35: Electric Characteristics

    R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 8 Electric characteristics Outdoor Unit Power Supply Compressor Model Phase Voltage Min. Max. TOCA MGCT-F30W/PN1 28.5 94(×2) 10.1(×2) 0.85 MGCT-D30W/PN1 28.5 65.6/94 9.6/10.1 0.85 MGBT-F60W/PN1 55.6 124(×2) 21.4(×2) 1.03(×2) 2.1(×2) MGBT-F120W/PN1 222.4 124(×4)

  • Page 37: Capacity Tables

    R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 9 Capacity tables 9.1 MGCT-F30W/PN1, MGCT-D30W/PN1 Cooling: Ambient temp.(℃) Chilled water 21.00 25.00 30.00 35.00 40.00 46.00 52.00 outlet temp. Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power...
  • Page 38 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Heating: Ambient temp.(℃) Hot water outlet temp. Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power (℃) 40.00 19.89 6.13 24.86 6.97 29.25 7.74 32.50 8.42 35.33 8.86 39.57 9.39...
  • Page 39 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 9.2 MGBT-F60W/PN1 Cooling Ambient temp.(℃) Chilled water 21.00 25.00 30.00 35.00 40.00 46.00 52.00 outlet temp. Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power (℃) 5.00 67.17 17.35 63.25...
  • Page 40 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Heating Ambient temp.(℃) Hot water outlet temp. Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power (℃) 40.00 40.40 12.45 50.50 14.15 59.41 15.72 66.02 17.09 71.76 17.99 80.37 19.07...
  • Page 41 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 9.3 MGBT-F120W/PN1 Cooling: Ambient temp.(℃) Chilled water 21.00 25.00 30.00 35.00 40.00 46.00 52.00 outlet temp. Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power (℃) 5.00 134.35 34.70 126.50...
  • Page 42 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Heating: Ambient temp.(℃) Hot water outlet temp. Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power (℃) 40.00 80.80 24.90 101.00 28.30 118.83 31.44 132.03 34.18 143.51 35.98 160.73 38.13...
  • Page 43 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 9.4 MGBT-F180W/PN1 Cooling: Ambient temp.(℃) Chilled water 21.00 25.00 30.00 35.00 40.00 46.00 52.00 outlet temp. Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power (℃) 5.00 201.52 52.05 189.75...
  • Page 44 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Heating: Ambient temp.(℃) Hot water outlet temp. Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power Capacity Power (℃) 40.00 121.21 37.35 151.51 42.45 178.24 47.16 198.05 51.27 215.27 53.96 241.10 57.20...

  • Page 45: Exploded View

    R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 10 Exploded view 10.1 MGCT-F30W/PN1...
  • Page 46 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz...
  • Page 47 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Part Name Part Name 23.7 Wire joint,11p 23.8 Right seal plate condenser components D Wire joint,4p 23.9 Tube heat exchanger Wire joint A seal plate condenser components of the 23.10 right Terminal block 23.11 B-I input tube assemblies Compressor capacitor...
  • Page 48 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz MGCT-D30W/PN1...
  • Page 49 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09...
  • Page 50 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Part Name Part Name 23.7 Wire joint,11p 23.8 Right seal plate condenser components D Wire joint,4p 23.9 Tube heat exchanger Wire joint 23.10 A seal plate condenser components of the right Wire joint 23.11 B-I input tube assemblies Compressor capacitor...
  • Page 51 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 10.2 MGBT-F60W/PN1...
  • Page 52 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 21.5 21.9 21.8 21.6 21.4 21.13 21.7 21.11 21.10 21.12 Part Name Part Name A combination of pieces of fixed plate Vapor-liquid separator condenser Condenser side board Shell and tube evaporator Condenser ass'y A Cover Condenser ass'y B Pole...
  • Page 53 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Part Name Part Name 21.3 Electric installation board Suction pipe ass'y A 21.4 Current detection board ass'y of outdoor unit Electronic expansion valve coil 21.5 Outdoor main control board ass'y Discharge temp sensor 21.6 Relay Room temp sensor ass'y T41...
  • Page 54 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz...
  • Page 55 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09...
  • Page 56 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Part Name Part Name The top beam I left panel The condenser seal fittings. II B2 machine evaporator inlet pipe assembly A2 machine evaporator inlet pipe assembly Iron nets fixed plate. II B1 Evaporator inlet pipe assembly machine Protect net around A1 machine evaporator inlet pipe assembly...
  • Page 57 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 10.4 MGBT-F180W/PN1...
  • Page 58 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 19.9 19.5 19.8 19.4 19.13 19.14 19.16 19.10 19.6 19.15 19.11 19.12 19.7 Part Name Part Name Column Tube fixed plate II About the protective screen Welding parts water tray Network Rail fixed plate II In lane bridge II Vertical beam in the frame Tube fixed plate III...
  • Page 59 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Part Name Part Name 19.12 Seven Terminal Block Four-way valve assembly II 19.13 Transformer separator 19.14 A Terminal Block The beams in the A cover board electronic control Front Panel Components of the compressor back to the trachea Strengthen the beam I I return to the trachea...

  • Page 60: Trouble Shooting

    MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 11 Trouble shooting 11.1 Failure & Protection Codes 30kW module Code Trouble Error of outdoor EEPROM Power phase sequence error Communication error Total water outlet temperature sensor error Outlet water temp sensor error Pipe temperature sensor error in condenser A Pipe temperature sensor error in condenser B Outdoor ambient temperature sensor error...
  • Page 61 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 60kW module Code Trouble Error of outdoor EEPROM Power phase sequence error Communication error Total water outlet temperature sensor error Outlet water temp sensor error Pipe temperature sensor error in condenser A Pipe temperature sensor error in condenser B Outdoor ambient temperature sensor error Output of the power protector error...
  • Page 62 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 120kW module Code Trouble Error of outdoor EEPROM Power phase sequence error Communication error Total water outlet temperature sensor error The unit outlet water temp sensor error Pipe temperature sensor error in condenser A Pipe temperature sensor error in condenser B Outdoor ambient temperature sensor error Output of the power protector error...
  • Page 63 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 180kW module Code Trouble Error of outdoor EEPROM Power phase sequence error Communication error Total water outlet temperature sensor error The unit outlet water temp sensor error Pipe temperature sensor error in condenser A Pipe temperature sensor error in condenser B Outdoor ambient temperature sensor error Output of the power protector error...
  • Page 64 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 11.2 Troubles and Solutions Troubles Possible reasons Solutions Air or other non-condensing gas still in the Discharge gas from refrigerant charging inlet. system. Re-vacuum the system if necessary. Fins in the condenser are dirty or foreign Clean condenser fins.
  • Page 65 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Troubles Possible reasons Solutions Confirm voltage not higher or lower than the rated Over high or over low voltage. Compressor stops voltage 10%. because of integrate See “Over high air expelling pressure” and “excessive Over high air expelling pressure or excessive temperature sensor or air low air suction pressure ”.
  • Page 66 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 11.3 Typical malfunction solutions 1) High pressure and discharged temperature protection High pressure discharged protection. analysis High pressure discharge temp. protection Discharged temp. protection. malfunction. protection. Blower stops rotating or rotates in Inspect fan motor and reversed direction in cooling mode;...
  • Page 67 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Discharge temp. protection Discharge temp. switch is Replace discharge temp. broken or joint is loose. switch, fixed joint. Refrigerant is too less. Detect leakage for all system, append refrigerant. EXV cannot be opened. Replace the EXV or coil.
  • Page 68 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 2) Current protection Current protection The fin of heat exchanger is dirty or aged in cooling mode, Clean heat exchanger. shell-tube scaled strong. motor stopped Check the fan motor, running cooling mode, capacitor (1 phase) or reversal and run slowly.
  • Page 69 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 4) Inlet &outlet water temperature difference protection Inlet &outlet water temp. difference protection. Refer to the water flow Water flow is lower. malfunction to analysis. The outlet water temp. sensor or inlet water temp. sensor Replace temp.
  • Page 70 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 7) Power supply phase sequence malfunction Power supply phase sequence malfunction. Adjust connecting wire. Phase sequence error. Lack of phase. Check power supply. Replace phase lack Phase lack protector is broken. protector. PCB mistakes to alarm.
  • Page 71 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 9) Water flow detection malfunction Water flow detection malfunction Open the pump or change; Water pump didn’t open or error. inspect the power supply or control circuit of pump. Open the valve. Valve is not opened in system.
  • Page 72 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 10) Total outlet water temperature sensor malfunction Total outlet water temp. sensor malfunction The circuit of total outlet water temp. Replace temp. sensor. sensor is broken. The circuit of total outlet water Replace temp.
  • Page 73 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 12) The unit inlet water temperature sensor malfunction The unit inlet water temp. sensor malfunction The unit’s circuit of inlet water Replace temp. sensor. temp. sensor is broken. The unit’s circuit of inlet water Replace temp.
  • Page 74 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 14) Ambient temperature sensor malfunction Ambient temp. sensor malfunction The circuit of ambient temp. Replace temp. sensor. sensor is broken. The circuit of ambient temp. Replace temp. sensor. sensor is shorten. The joint of ambient temp. sensor Fixed joint.

  • Page 75: Installation

    R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 12 Installation 12.1 Unit Installation 12.1.1 Transportation The angle of inclination should not be more than 15º when carrying the unit, to avoid overturn of the unit. a. Rolling handling: several rolling rods of the same size are placed under the base of the unit, and the length of each rod must be more than the outer frame of the base and suitable for balancing of the unit.
  • Page 76 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 120kW module The position should be provided with an at least 50mm thick wood block, cloth or hard paper, to avoid damages to the unit. The position should be provided with an at least 50mm thick wood block, cloth or hard paper, to avoid damages to the unit.
  • Page 77 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 12.1.2 Installation space ● Requirements of arrangement space of the unit 1) To ensure adequate airflow entering the condenser, the influence of descending airflow caused by the high-rise buildings around upon the unit should be taken into account when installing the unit. 2) If the unit is installed where the flowing speed of air is high, such as on the exposed roof, the measures including sunk fence and Persian blinds can be taken, to prevent the turbulent flow from disturbing the air entering the unit.
  • Page 78 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 120kW module 180kW module Input of airflow Input of airflow Input of airflow Input of airflow...
  • Page 79 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 The recommend space parameter Installation space (mm) Module MGCT-F30W/PN1 MGCT-D30W/PN1 ≥1500 ≥2000 ≥2000 ≥1500 ≥8000 MGBT-F60W/PN1 MGBT-F120W/PN1 ≥2000 MGBT-F180W/PN1 ● Space requirements for parallel installation of multiple modular units. To avoid back flow of the air in the condenser and operational faults of the unit, the parallel installation of...
  • Page 80 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 12.1.3 Installation Foundation  The unit should be located on the horizontal foundation, the ground floor or the roof which can bear operating weight of the unit and the weight of maintenance personnel. Refer to the operating weight parameters in specification table.
  • Page 81 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 120kW module 3.5.1 Location drawing of installation foundation of the unit: (unit: 180kW module 2388 Drainage channel Concrete Cement mortar Drainage channel Anchor bolt 12.1.4 Installation of damping devices ※ Damping devices must be provided between the unit and its foundation. By means of the Φ15mm diameter installation holes on the steel frame of the unit base, the unit can be fastened on the foundation through the spring damper.
  • Page 82 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz...
  • Page 83 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 12.2 Water System Installation Notice: ● After the unit is in place, chilled water pipes can be laid. ● The relevant installation regulations should be abided with when conducting connection of water pipes. ●...
  • Page 84 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz ● For the water pipeline network including filters and heat exchangers, dreg or dirt may seriously damages the heat exchangers and water pipes. ● The installation persons or the users must ensure the quality of chilled water, and de-icing salt mixtures and air should be excluded from the water system, since they may oxidize and corrode steel parts inside the heat exchanger.
  • Page 85 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Performance tables are based at sea level. Elevations other than sea level affect the performance of the unit. The decreased air density will reduce condenser capacity and reduce the unit’s performance. For performance at elevations other than sea level refer to Table 3.
  • Page 86 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 12.2.3 Installation & regulation guide for water flow switch ● Please carefully check flow switches before conducting installation of the water flow switch. Packing should be in good condition, and the appearance should be free of damage and deformation. If any problem, please contact the manufacturer.
  • Page 87 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Water outlet Water inlet Total water outlet temperature sensor Electric control box Installation of multi-module water system pipeline 1) Installation mode I (recommended installation mode) n :the module quantity, max 16 2) Installation mode II n :the module quantity, max 16 12.2.5 Installation of water system pipeline for 60kW module...
  • Page 88 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Installation of single-module water system pipeline Installation of multi-module water system pipeline 1) Installation mode I (recommended installation mode) n :the module quantity, max 6 less than 6 modules 2) Installation mode III (recommended installation mode) n : the module quantity, max 16 Installation mode A: less than 16 modules...
  • Page 89 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 3) Installation mode IV n : the module quantity, max16 No.n module No.(n-1) module No.1 module No.(n-1) address No.(n-2) address No.0 address Drill dead hole at the position, and move the total effluent temperature sensor at No.0 address to the position...
  • Page 90 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Installation mode A: less than 16 modules 12.2.6 Installation of water system pipeline for 120kW module Installation of single-module water system pipeline Electric control box Total water outlet temp sensor Water intlet Water outlet Installation of multi-module water system pipeline 1) Installation mode I (recommended installation mode)
  • Page 91 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 No.1 unit No.(n-1) unit No.n unit (n≤8) No.0 address(main unit) No.(2n-3) address No.(2n-1) address No.1 address No.(2n-4) address No.(2n-2) address Water flow switch Pump Drill dead hole at the position, and move the total effluent temperature sensor at No.0 address to the position...
  • Page 92 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Multi-module combination installation involves special design of the unit, so relevant explanation is given as follows. Installation mode of multi-module combination water system pipeline 1) Installation mode I (recommended installation mode) n : the module quantity, max5 No.n unit (n≤5) No.1 unit No.(n-1) unit...
  • Page 93 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 12.2.8 Diameter parameters of main inlet and outlet pipes Table of diameter parameters of main inlet and outlet pipes for 30kW module Total inlet and outlet water Total inlet and outlet water Unit model x quantity Unit model x quantity pipe diameter...
  • Page 94 If the system flow is more than the maximum unit flow rate, bypass the evaporator as shown in the diagram to obtain a lower evaporator flow rate. Minimum and Maximum water flow rates Item Water flow rate(m3/h) Model Minimum Maximum MGCT-F30W/PN1 4.68 5.72 MGCT-D30W/PN1 4.68 5.72 MGBT-F60W/PN1 9.27 11.33...
  • Page 95 Error R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Recommendation Error Fig.4-4 12.2.11 Design of expansion tank If a closed expansion tank with its filled volume of air is too small, the system pressure will easily exceed the maximum allowable pressure and cause water to discharge from the pressure relief valve, thus wasting water.
  • Page 96 If the user has any requirement of repair, please contact the maintenance center. 12.3.2 Power supply specification Outdoor power supply Items Wiring Power supply Manual switch Fuse Model 10mm2 MGCT-F30W/PN1 380V～3Ph～60Hz (<30m) 10mm2 MGCT-D30W/PN1 380V～3Ph～60Hz (<30m) 16mm 380V～3Ph～60Hz MGBT-F60W/PN1 125A 100A (<20m)
  • Page 97 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 ● The strong current wires generally pass the electrical box, and 380V alternating current may also pass the control board, so wiring connection should conform to the principle of separation of strong current and weak current, and the wires of power supply should be kept more than 100 mm away from the control wires.
  • Page 98 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 12.3.4 Wiring steps Step Content Check the unit and ensure that it is connected with grounding wires correctly, to avoid leakage, and the grounding devices should be mounted in strict accordance with the requirements of electrical engineering rules. The grounding wires can prevent electric shock.
  • Page 99 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 12.3.5 Fielding wiring ○ 1 .Wiring of “ON/OFF” weak electric port Corresponding parallel connect the “ON/OFF” port of the main unit’s electric control box, then, connect the “ON/OFF” signal (provide by user) to the “ON/OFF” port of main unit as follows. 0# electric control box “ON/OFF”...

  • Page 100: Commissioning

    MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 13 Commissioning 1. Preparation ● After the water system pipeline is flushed several times, please make sure that the purity of water meets the requirements; the system is re-filled with water and drained, and the pump is started up, then make sure that water flow and the pressure at the outlet meet the requirements.

  • Page 101: Maintenance

    R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 14 Maintenance Maintenance for main components： ● Close attention should be paid to the discharge and suction pressure during the running process. Find out reasons and eliminate the failure if abnormality is found. ●...
  • Page 102 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 1) Total leakage of refrigerant. In case of such situation, leakage detection must be made on the pressurized nitrogen used for the system. If repair welding is needed, welding cannot be made until all the gas in the system is discharged.
  • Page 103 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Regularly preventive maintenance plan Maintenance Items Frequency Qualify Standards (Settlement) Note Judge whether there is abnormal sound by Noise Anytime Watch from one meter hearing; away from the center of Watch whether the swings of distribution pipes General the unit;...
  • Page 104 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Maintenance Safety Requirement  Each component should be maintained by qualified technicians. Please contact competent maintenance technicians in the event of leakage or breakdown. The safety devices should be checked after each maintenance. Once leakage occurs, all the refrigerant in unit should be pumped out and the leak point should be repaired and then charge the unit with suitable refrigerant according to the nameplate.

  • Page 105: Control System

    R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 15 Control system 15.1 PCB Outline and Description 15.1.1 30kW module PCB, outlook view 10 9 8 7 6 5 24 25 26 15.1.2 30kW module components description Detail information. Detection of current of the compressor A1 (Protection code P4). Detection of current of the compressor B1 (Protection code P5).
  • Page 106 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz not be affected. Double pipe low-temperature ant-freeze sensor (Fault code Eb). Adjustment range of constant speed capability: ON and OFF. Adjustment range of constant speed capability: ON and OFF. Unit outlet water temperature sensor (Fault code E4). Under refrigeration mode and heating mode, conduct adjustment according to the magnitude of unit outlet water temperature.
  • Page 107 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 2) Subordinate unit: (Water flow detection will not be done). COM (I) 485 communication port (Fault code E2). COM (O) is interconnected with P, Q and E of COM (I), used for RS-485 communication. 1) If faults occur between the wired controller and the main unit module, all modules will be shut down.
  • Page 108 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz When the address is 1,2,3……F, it serves as the subordinate unit 1,2,3……15. ADDRRSS Each modular part of modular unit has the same electric control function, and the main unit and subordinate units can be set through address code on the electric control board.
  • Page 109 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 15.1.3 60kW module PCB, outlook view 10 9 8 7 6 5 24 25 26 15.1.4 60kW module components description Detail information. Detection of current of the compressor A1 (Protection code P4). Detection of current of the compressor B1 (Protection code P5).
  • Page 110 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz temperature. Adjustment range of constant speed capability: ON and OFF. Inlet water temperature sensor (Fault code EF). Total outlet water temperature sensor (Fault code E3). Only the main unit is valid, and the subordinate units are invalid. Under refrigerating mode and heating mode, conduct adjustment according to the magnitude of total outlet water temperature.
  • Page 111 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 be shut down. Less units will be detected by the wired controller, which may display EC, and in the meanwhile, the indicator lamp of the wired controller will flash. Restart 3 minutes later after malfunction be removed. COM (O) 485 communication port (Fault code E2).
  • Page 112 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz When the address is 1,2,3……F, it serves as the subordinate unit 1,2,3……15. ADDRRSS Each modular part of modular unit has the same electric control function, and the main unit and subordinate units can be set through address code on the electric control board.
  • Page 113 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 15.1.5 120kW module PCB, outlook view 10 9 8 7 6 5 24 25 26 15.1.6 120kW module components description Detail information. Detection of current in compressor A (Protection code P4). Detection of current in compressor B (Protection code P5). Current is not detected within the initial 5 seconds after the compressor is started up.
  • Page 114 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Adjustment range of constant speed capability: ON and OFF. Inlet water temperature sensor (Fault code EF). Total outlet water temperature sensor (Fault code E3). Only the main unit is valid, and the subordinate units are invalid. Under refrigerating mode and heating mode, conduct adjustment according to the magnitude of total outlet water temperature.
  • Page 115 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 lamp of the wired controller will flash. Restart 3 minutes later after malfunction be removed. COM (O) 485 communication port (Fault code E2). Anti-freezing pressure protection in system A(Protection code Pc). Anti-freezing pressure protection in system B(Protection code Pd). The alarm signal output of the unit(ON/OFF signal).
  • Page 116 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Each modular part of modular unit has the same electric control function, and the main unit and subordinate units can be set through address code on the electric control board. The address code 0 # is provided as the main unit. The priority of being the main unit is given to the unit with digital compressor, and other addresses are subordinate units.
  • Page 117 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 15.1.7 180kW module PCB, outlook view 10 9 8 7 6 5 24 25 26 15.1.8 180kW module components description Detail information. Detection of current in compressor A (Protection code P4). Detection of current in compressor B (Protection code P5). Current is not detected within the initial 5 seconds after the compressor is started up.
  • Page 118 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Adjustment range of constant speed capability: ON and OFF. Inlet water temperature sensor (Fault code EF). Total outlet water temperature sensor (Fault code E3). Only the main unit is valid, and the subordinate units are invalid. Under refrigerating mode and heating mode, conduct adjustment according to the magnitude of total outlet water temperature.
  • Page 119 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 lamp of the wired controller will flash. Restart 3 minutes later after malfunction be removed. COM (O) 485 communication port (Fault code E2). Anti-freezing pressure protection in system A(Protection code Pc). Anti-freezing pressure protection in system B(Protection code Pd). The alarm signal output of the unit(ON/OFF signal).
  • Page 120 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Each modular part of modular unit has the same electric control function, and the main unit and subordinate units can be set through address code on the electric control board. The address code 0 # is provided as the main unit. The priority of being the main unit is given to the unit with digital compressor, and other addresses are subordinate units.
  • Page 121 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 15.2 Wired controller KJRM-120D/BMK-E(Standard) 15.2.1. Operating instructions of buttons 10.ON/OFF key 1. Operation icon 2. Mode area 11.Right, Left key 3. Setting temperature 12.OK key 4. Timing On/Off 13. Setting key 5. Function icon 14.
  • Page 122 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz ○ 8 . Clock: Under normal status display clock; during timing setting it displays the setting timing time; ○ 9 . Water temperature: Under normal status display water temperature; during water temperature setting it displays the setting numerical value;...
  • Page 123 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Query water temperature setting: press the “ ” or “ ” key under the main page to query the set water temperature numerical value. 2) Timing setting: can set 3 timing periods on the wired controller: Timer 1, Timer 2, Timer 3, and then control the main unit to ON and OFF in different periods.
  • Page 124 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Main page Press “Setting” key twice to enter hour setting interface of “Timer 1 On” Through the “▲” or “▼” key, set the hour number of “Timing 1 On” to be 07 Press “...
  • Page 125 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Note: Working mode setting is valid only when the unit is power off. 4) Set clock ▲This time the hour of the clock will flash, it means the current setting is the hour of the clock, press the “▲” or “▼”...
  • Page 126 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz T s- δ ≤ T s+1 - < δ ≥ T s +1 - T s- 1+δ > δ T s- 1+δ ≤ T ＜ Tj2 T ≥Tj2 (TAL: total outlet water temperature) Operation method: Turned off, press the "Constrain"...
  • Page 127 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 3) Press the “▲” or “▼” key to adjust the main unit serial number can query 16 sets main units status information from #0～#15. Press “ ” or “ ” to adjust the spot check sequence number of one main unit then can query all the status information of this unit.
  • Page 128 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz The wiring procedure and principles are shown in the figure: 15.2.7 Basic conditions of operating the wired controller： 1) Applicable range of supply voltage: Input voltage is 10V AC. 2) Operating environment temperature of wired controller: -10° C~+43° C. 3) Operating RH of wired controller: RH 40%~RH90%.
  • Page 129 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 15.3 Wired controller KJR-120A/MBTE(Optional) 15.3.1 NAMES OF KEYS ON THE WIRED CONTROLLER AND THE KEYPAD OPERATION DESCRIPTION ON/OFF TEMP SET TIMER SET CANCEL MODE PAGEUP ALARM CLEAR PAGEDOWN QUERY ADDRESS / - ADDRESS/+ CLOCK LOCK...
  • Page 130 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz ④ QUERY button Press the button, inquire state information of No. 0 to No. 15 outdoor units (the default is state information of No.0 unit) and enter inquiry state. After entering inquiry state, inquire the information of the former unit or the following unit through “ADDRESS/+”...
  • Page 131 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Press this button at Check mode, when select the next modular, the operation status of the next modular will display; if the current modular is 15#, and the next one is 0#. Press this button for add address at wire address setting mode.
  • Page 132 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Press the button can open the weekly timer function or close the weekly timer function. 15.3.2. OPERATION PROCEDURE OF WIRED CONTROLLER ● Operation procedure of mode setting 1. Press MODE at shutdown status, you could select appropriate mode as you want. The function is invalid at startup status.
  • Page 133 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 15.3.3 The adjusting logic of heating mode: (the parameter of δ1,δ2,Tj1 and Tj2 are decided by the 3: The adjusting logic of heating mode: (the parameter of δ1,δ2,Tj1 and Tj2 outdoor unit) are decided by the outdoor unit) T s- δ...
  • Page 134 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Display operation status Display operation mode Display query data Display time data 15.3.6 INSTALLATION PROCEDURE Installation procedure: Outdoor unit Outdoor unit Outdoor unit Outdoor unit Wired Controller Use PQE to connect with the outdoor units. NOTE: Please connect the attached shorted-wires to the corresponding communication port COM(I) or COM(O) in the main control board of the last parallel unit (dial code ).

  • Page 135: Base

    R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Outdoor electric control box Please use 3-cord with shielding wire for connection. The wire length depends on the specific situation in the installation. Communicate with upper unit(reserved). If it is under the host computer network control, displays, otherwise there is no display.
  • Page 136 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz WEEKLY TIMER SETTING TIMER SET Set Timer Period 2 Select week ADDRESS/+ ADDRESS/- Set Period 2 start hour ADDRESS/- ADDRESS/+ Set Period 1 start hour ADDRESS/- ADDRESS/+ ADDRESS/+ ADDRESS/- Set Period 2 start minute ADDRESS/+ Set Period 1 start minute ADDRESS/-...
  • Page 137 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 NOTE: In operating, press the key "CANCEL", to turn back to the previous step or the normal display interface. 1.Before power failure of the heating water system or wired controller, the wired controller memorizes the status of the unit automatically, and sets the water temperature value except timing on/off function.
  • Page 138 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 15.4 Control software a. Interface introduction 1）The LOGIN window as above picture. 2） User need to input the name and password (default name: Admin, default password: Admin); user’s name and password could be changed after login. 3）Select the computer serial port.
  • Page 139 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Fig.4-3 Fig.4-4 7）In case the password error time exceed 6 times (i.e. the 7th times password error), the window show as Fig.4-5, and then click OK, it will exit the program. Fig.4-5 8）In case the selected serial port is unavailable, the window as Fig.4-6 will be display.
  • Page 140 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 1）Menu includes： “System” 、 “Equipment management” 、 “Schedule management” 、 “Communication parameter” 、 “Help” 。 2）System configuration illustration (The ① as Fig.4-7): Not more than16 wired controllers could be connected to the computer. This kind of wired controller could be connected to the module group of : 25KW、 30KW、...
  • Page 141 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Fig.4-10 c. Menu application 1） “System” includes： “Password Modification” 、 “Re-login” 、 “Exit the program” 。 Fig.4-11 ○ Click “Password Modification” will display window as Fig.4-12 input old password as requirement, and then reset a new password, click “OK” or “Modify”, window as Fig.4-13t will show that new password has been already successful set;...
  • Page 142 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Fig.4-18 ○ .Click “KJR Setting”, the window as Fig. 4-20 will be display——add wired controller to the system to be monitored. Fig.4-20 Detail operation procedure as follows: a、 Add a wired controller: Select the wired controller address (0-15) at the “KJR Address”, fill the wired controller name at “KJR Name”...
  • Page 143 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Fig.4-25 a、Add sub-module: Select the existing wired controller address from the “KJR Address”, and select the configured module group at the drop-down box of “Module name”, select the sub-module address in the drop-down box of the configured “Sub-module address”, and then click “Add”.
  • Page 144 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz （3）Blue color represents at less one Weekly Timing schedule has been set in this wired controller as well as at less one of this schedule in activating. Fig.4-29 a、KJR Address——Wired controller address, each wired controller represents one refrigeration system. b、Weekly timing function―－Display the weekly set status in the current wired controller is ON or OFF (ON or OFF could display as long as at least one weekly schedule has been set, otherwise, nothing would display.)
  • Page 145 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 f、Modify(See the ③ key in the Fig.4-29) ――Press this key the parameter of selected period become changeable, and then click “ Save ” . Press the key again, all parameters in this period become unchangeable.
  • Page 146 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Fig.4-37 Time Off：Turn off time, when Time Off selecting ”--：--“ , then means do not turn off the unit , display as Fig 4-38. Fig.4-38 Timing Status：Drive up the weekly timing function in the current period or not. Control Mode：Automatically drive-up mode Mode set：Operation mode: Cooling, Heating, Water Pump Setting temp.：Setting temp.
  • Page 147 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Fig.4-43 （2）Detail procedures of modify a Weekly Timing Schedule: a、Select a wired controller: By clicking the “System diagram for weekly timing AC” wired controller icon at the left side in the wired controller, or by selecting the wired controller at the drop-down box of “KJR Address”.
  • Page 148 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Fig.4-47 Fig.4-48 Fig.4-49 4） “Communication parameter” includes： “Serial port set” and “History set” 。See Fig.4-50 Fig.4-50 ① Click “Serial port set” , window as Fig. 4-51 will pop up—— modify or select the serial port in computer. The available serial port source is captured by software, and saved at the optional list for user to select.
  • Page 149 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Fig.4-53 ②Click “History set”, an interface as Fig. 4-54 displays ―――to modify or select the history error saving duration. Fig.4-54 5） “Help” includes： “User guidance” and “About”. See Fig. 4-55 Fig.4-55 ○ 1 Owner’s manual——Software application manual, i.e.
  • Page 150 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Fig.4-58 Fig.4-59 Fig.4-60 Provided that the selected wired controller in lock status, the key would display “Unlock KJR”(see Fig. 4-61), once successful unlock the wired controller, the message box (see Fig. 4-62) would display, then the key displays “Lock KJR”(see Fig.
  • Page 151 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Fig.4-65 If successful query the system, a message box (see Fig. 4-66) will pop up and note you query success, and system parameter interface will update according to the query result. (Fig. 4-67) Fig.4-66 Fig.4-67 Whereas, “Query overtime”...
  • Page 152 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Fig.4-70 Fig.4-71 Sub-module Query Click the “Query”, system will query the operative status and display the information in the operation interface according to the current selected sub-module. In the querying, a message box (see Fig. 4-72) would pop up: “Query success”...
  • Page 153 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Fig.4-72 Fig.4-73 Fig.4-74 Fig.4-75 Fig.4-76 Provided that malfunction occur, the corresponding error code will show in the Sub-module query; Provided that protection function perform, the corresponding protection code will show in the Sub-module query; if move the mouse arrow to the these codes, a floating window as the follows Fig.
  • Page 154 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Fig.4-79 Fig.4-80 Fig.4-81 System operate set 1）During setting, message boxes as following might display. Click the “System operate set” in the conditioner of without wired controller has been selected, a message box as Fig. 4-82 would show. Fig.4-82 Click the “System operate set”...
  • Page 155 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Click the “System operate set” in the conditioner of without Control Mode has been selected, a message box as Fig. 4-85 would show. Fig.4-86 Fig.4-85 Click the “System operate set” in the conditioner of without Mode set has been selected, a message box as Fig.
  • Page 156 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 3）Uniformly set all wired controllers: Tick Uniformly Set as Fig. 4-92, and then select the corresponding parameters, click the System Operate Set, system starts to set up. A message box as Fig. 4-93 will display during the setting.
  • Page 157 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Fig.4-98 Fig.4-97 2、The window “System Properties” will be popped-up after selecting the “Properties”, and then select the “Device Manager” in the “Hardware” as Fig. 4-98 3、The window “Device Manager” will be showed up after clicking the “Device Manager, as Fig. 4-99. Fig.4-99 Fig.4-100 4、Click the icon “...

  • Page 158: Transformer 1

    MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 15.5 Lonworks gateway (Optional) 15.5.1 Introduction It is applied the central A/C system and the Building Management System (BMS) (namely Automated Building System) to realize the integration of A/C system and Building Management system. To LonWorks To Air-cooled Modular system...
  • Page 159 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Communication port Communication port Size 31.9cm X 25.1cm X 6.1cm 15.5.4 External dimension There are three installation methods as the following figure. Do not install the unit in any other orientation 268.8 15.5.5 Connection Method Connection Method 1...
  • Page 160 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz LSQ-LONWORKS Air-cooled Modular units:Max 16 units RS485(P Q E) LONWORKS NET WORK BMS SYSTEM Connection Method 2: LSQ-LONWORKS RS485(P Q E) Air-cooled Modular units:Max 16 units(The network address is unique) LONWORKS NET WORK BMS SYSTEM Caution This system adopts the manner of shared network variable to manage A/C system, which cannot access the...
  • Page 161 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Network Network Name Data definition Descriptions variable name variable type 2:4800bps Used for setting the baud rate of Rs485 port, and the Initial value=2 gateway is used 4800 baud rate. Name nciU ARTBau d SN VT_count The value is fixed to be 2.
  • Page 162 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz nvoOutTemp nvoOnNum nviSetMode nvoRunNum nviSetTemp Air-cooled Modular nvoSystemMode system nvoCool TempHi nviTempDiff nvoCoolTempLo nviClrErrorState nvoHeatTempHi nvoHeatTempLo Input network variable of air-cooled modular system Output network variable of air-cooled scroll chiller unit system...
  • Page 163 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Network Network Name Date definition Descriptions variable name variable type Display the running mode HVAC_COOL: Cool Mode of Air-cooled Modular nvoSystem HVAC_HEAT: Heat Mode Running system. SNVT_hvac_mode state Mode HVAC_FAN_ONLY: Water pump Mode The initial value of first HVAC_OFF:Off Mode power on is HVAC_AUTO...
  • Page 164 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz The network variable which is assigned to each unit module: 6 output network variable, used for displaying detail parameters of unit modules. Network Network Name Date definition Descriptions variable name variable type Operating mode of unit HVAC_COOL: Cool Mode * n means the address of...
  • Page 165 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 Network Network Name Date definition Descriptions variable name variable type Compressor A current of unit. nvoCompA *n means the address of Current of SNVT_count 0~250A the unit, Current[n] Compressor A nvoCompACurrent[1] means the Compressor A current of unit which address is 1.

  • Page 166: Appendix

    MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz Appendix 1. Accessories Item Name of accessory Type Shape Usage Installation and Installation and using instruction. operation manual The total outlet water Inspection the temperature of LSQWRF65M/A-C.ZL.10 temperature test kit total outlet water. Wired controller KJRM-120D/BMK-E ------...
  • Page 167 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 2.Temperature-Resistance characteristic sheet for pipe temperature sensor， ambient temperature sensor，inlet water temperature sensor and outlet water temperature sensor. Unit：Temp:℃--K, Ratio:KΩ Sensor characteristic sheet Temp. Ratio Temp. Ratio Temp. Ratio Temp. Ratio 115.266 12.6431 2.35774 0.62973...
  • Page 168 MCAC-ATSM-2014-09 R410A tropical air-cooled scroll chiller unit 60Hz 3.Temperature-Resistance characteristic sheet for discharge temperature sensor of digital compressor. ：temp:℃--K, Ratio:KΩ Sensor characteristic sheet Unit Temp Ratio Ratio Temp. Ratio Temp. Ratio Temp. Ratio 2889.60000 148.39300 17.29460 3.45032 0.97524 2704.61400 141.59040 16.70980 3.35400 0.95632...
  • Page 169 R410A tropical air-cooled scroll chiller unit 60Hz MCAC-ATSM-2014-09 295.55620 28.72400 5.09120 1.30290 280.82440 27.66620 4.95360 1.27452 266.85800 26.65140 4.82030 1.24700 253.68280 25.67960 4.69216 1.21948 241.24720 24.75080 4.56660 1.19368 229.49960 23.85640 4.44620 1.16788 218.40560 23.00500 4.32322 1.14208 207.87060 22.17940 4.20454 1.11800 197.91180 21.39680 4.08930...

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