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  • MCAC-ATSM-2012-02 R22 air-cooled modular chiller 50Hz unit

    Content i

    Content 1Nomenclature .................................................................. 2

    2Product Schedule ............................................................ 2

    3. External Appearance...................................................... 3

    4Features ........................................................................... 4

    5Specification .................................................................... 6

    6Dimension ...................................................................... 10

    7Refrigeration System Sketch Drawing ........................ 14

    8Wiring Diagrams ............................................................ 16

    9Electric Characteristics ................................................ 25

    10Capacity Tables ........................................................... 26

    11Exploded View ............................................................. 42

    12Trouble Shooting ........................................................ 65

    13Installation ................................................................... 71

    14Commissioning ........................................................... 93

    15Maintenance ................................................................ 94

    16Control System ............................................................ 96

    Appendix ............................................................................ 116

    Manufacture reserves the right to discontinue, or change at any time, specifications or designs without notices and without

    incurring obligations.

  • R22 air-cooled modular chiller 50Hz unit MCAC-ATSM-2012-02

    2 Nomenclature&Product Schedule

    1Nomenclature

    O utdoor Unit

    L ight C om m ercial C hiller System

    M idea

    G B W / RM

    D D igita l Scro ll C om pressorF F ixed S peed S cro ll C om pressorC om pressor Type

    C ooling C apacity (kW )

    S 380V ,50H z,3phPow er Supply

    A P late type B D ouble-p ipe or shell-tube typeH eat Exchanger Type

    R 380~415V ,50H z,3ph

    2Product Schedule

    No Model Refrigerant Net dimension Net weight

    Power supply (LWH) (unit: mm) (kg)

    1 MGB-F25W/R R22 15148411840 380 380~415V/3ph/50Hz 2 MGB-D25W/R R22 15148411840 380 380~415V/3ph/50Hz 3 MGB-F30W/R R22 15148411840 380 380~415V/3ph/50Hz 4 MGB-D30W/R R22 15148411840 380 380~415V/3ph/50Hz 5 MGB-F35W/R R22 15148411840 380 380~415V/3ph/50Hz 6 MGB-D35W/R R22 15148411840 380 380~415V/3ph/50Hz 7 MGB-F55W/S R22 20009001880 580 380V/3ph/50Hz 8 MGB-F60W/S R22 20009001880 580 380V/3ph/50Hz 9 MGB-F65W/S R22 20009001880 580 380V/3ph/50Hz

    10 MGB-F130W/S R22 200016852090 1080 380V/3ph/50Hz 11 MGB-F200W/S R22 285020002110 1730 380V/3ph/50Hz

  • R22 air-cooled modular chiller 50Hz unit MCAC-ATSM-2012-02

    External appearance 3

    3. External Appearance

    25/30/35kw module 55/60/65kw module

    130kw module 200kw module

  • R22 air-cooled modular chiller 50Hz unit MCAC-ATSM-2012-02

    4 Features

    4Features 1.Digital scroll techniquenew type air-cooled modular chiller system.

    Capacity output is controlled depending on controlling compressor to on/off in traditional modular air-cooled chiller system control. The precision of the control mode is not very good, and the compressor is frequently on and off, which is very bad for the compressors life. Digital scroll air-cooled modular chiller system breaks traditional design, which is inconceivably designed with digital scroll compressor and constant scroll compressor parallel connection. The system can achieve linear capacity output(after combined) within 0.5%-100% which is widest in industry. When the system operates at the part-load, the system can accurately adjust cooling and heating capacity output basing on actual requirement of the indoor room.

    2.Modular design, flexible combination, more convenient for design and installation.

    The units adopt modular design, which can make more units to connect together. The unit can combine 16 separate modules (25kw, 30kw,35kw,55kw,60kw.65kwmodule) or 8 modules (130kw module). Cooling (heating) capacity can increase step by step by 5KW per each time within 25kW-1040kW,meanwhile every separate module can operate as main unit, also each module can be a slave unit with modules combination, more convenient for design and installation.

    3.The maximum combination of the system consists of 1 main unit and 15 slave units for 25kw,30kw,35kw,55kw,60kw and 65kw module1 main unit and 7 slave units for 130kw module and 1 main unit and 4 slave units for 200kw module. 4. Outlet water temp. adjustable. Outlet water temp. can be adjusted by wired controller according to customers demand.In cooling mode, the adjustable range from 5-17(7 is default). In heating mode, the adjustable range from 45-50(45 is default). 5.Compact structure

    Air-cooled modular chiller structure is compact, light weight. The system adopts double-pipe, shell and tube heat exchanger, not only greatly enhanced the transfer performance, but also reduce the unit weight, the lightest single module only has 380kg.

    6.Back up function

    65KW 65kW 1040KW

    (100%)ON

    (0%)OFF

    Capacity output of traditional air-cooled modular chiller system

    0.5%

    25%

    50%

    100%

    75%

    12 60 120 180 240

    Capacity output(KW)

    Capacity output of digital scroll air-cooled modular chiller system

  • MCAC-ATSM-2012-02 R22 air-cooled modular chiller 50Hz unit

    Features 5

    When unit is failure

    If master unit fails, all the units will stop. If one slave unit fails, this unit will stop but the others will keep running. When the master unit fails, any of the slave one can be set as the master unit by manual setting.

    When unit is under protection

    If master units protection occurs, this unit will stop but the others will keep running. If slave units protection occurs, this unit will stop but the others will keep running. ( Except PE, P9 protection happen)

    Master Slave

    Master Slave

    7.Strong micro-computer intelligent control and monitor function.

    Optimizing the design of system and using varieties of protection devices, to make the system more safe and reliable.

    8. Superior reliability

    System will be more reliable with new type efficient heat exchanger.

    Evaporator of 25KW,30KW and 35KW module adopt double-pipe heat exchanger evaporator of 55kw,60kw,65kw,130kw and 200kw module adopt shell-tube heat exchanger.

    Double-pipe heat exchanger Shell and tube heat exchanger

  • R22 air-cooled modular chiller 50Hz unit MCAC-ATSM-2012-02

    Specification 6

    5Specification

    Note: Specifications are based on the following conditions: Cooling : chilled water inlet/outlet: 12C / 7C, and outdoor ambient temp. of 35C (117) DB. Heating : heat water inlet/outlet: 40C / 45C, and outdoor ambient temp. 7C DB/6C WB. Water side fouling factor: 0.086m2C /kW.

    Model MGB-F25W/R MGB-F30W/R MGB-F35W/R

    Cooling Capacity kW 25 30 35

    Heating Capacity kW 27 32 37

    Power supply V/Ph/Hz 380-415/3/50

    Compressor

    Type Scroll (constant speed)

    Quantity Pieces 2

    Model ZR72KC-TFD-522

    Brand Copeland

    Capacity W 173752

    Input W 52482

    Rated current(RLA) A 9.22

    Locked rotor Amp(LRA) A 742

    Power input Cooling kW 8.2 9.8 11.5

    Heating kW 8.1 9.6 11.3

    Refrigerant Type R22

    Weight kg 6.2

    Condenser

    (Air side)

    Air side heat-exchanger type Fin-coil

    Quantity of fan motor Pieces 1

    Air flow volume 103m3/h 12

    Fan motor input kW 0.65

    Evaporator

    (Water side)

    Water side heat-exchanger type Double-pipe heat exchanger

    Water resistance loss kPa 60

    Water inlet/outlet pipeline

    diameter mm DN40

    Water flow volume m3/h 4.4 5.2 5.9

    Max. Pressure MPa 1

    Water pipe connection type Flexible joint

    Dimension LWH mm 15148411840

    Packing size LWH mm 15859952040

    Weight Net weight kg 380

    Gross weight kg 400

    Connection wiring Power wiring mm2No. 164+10 1

    Signal wiring mm2No. 0.753-core

    Control type Wired controller

    Safety protection device High or low pressure switch, freeze-proof device, water flow volume

    controller, overcurrent device, power phase sequence device etc.

    Noise level dB(A) 65

    Operation water temp Cooling517 Heating4550

    Ambient temp Cooling1046 Heating-1021

  • MCAC-ATSM-2012-02 R22 air-cooled modular chiller 50Hz unit

    Specification 7

    Note: Specifications are based on the following conditions: Cooling : chilled water inlet/outlet: 12C / 7C, and outdoor ambient temp. of 35C (117) DB. Heating : heat water inlet/outlet: 40C / 45C, and outdoor ambient

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