Midea MCCDH30A-TA3SL, Technical & Service Manual

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Air-cooled modular chiller unit 50Hz MCAC-ATSM-2012-10
6
4).Humanized remote control (For the module with KJR-120A/MBE)
S7 address on PCB should be switched to ON to realize remote
control, which including remote ON/OFF, remote heating and
cooling mode selection, remote alarm. The customer can simply
and conveniently control the chiller and acquire the running
information on real time in door.
5)Digital scroll technique
，
new type modular air-cooled 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 compressor‟s life.
Digital scroll modular air-cooled 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 within 0.5%-100%, the scope 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.
6).Modular design, flexible combination, more convenient for design and installation.
The unit adopt modular design, which can makes more unit connect together. The unit can be combined
max. 16 separate module(30 , 65kW module) or 8 module (250kW module).Cooling(heating)
capacity can be increased step by step by 5kW per each time within 30 kW-2000kW,meanwhile every
separate module can be operated as main unit, also each module can be a slave unit with modules
combination, more convenient for design and installation.
7).The maximum combination of the system consists of 1 main unit and 15 slave units for
65kW module, 1 main unit and 7 slave units for 130kW module, 1 main unit and 4
slave units
for 185kW module
，
1 main unit and 7 slave units for 250kW module.
Easy connection between main unit and slave units.
All the units can be connected together with a wired controller in series type. Using three-core shielded
twisted wire as communication wire.
Max 8 modules
2000kW
250kW
250kW
1.2 60 120 180 240
0
25
50
75
100
Capacity output
(%)
Capacity output of digital modular air-cooled chiller system