Air-cooled modular chiller unit 50Hz MCAC-ATSM-2011-12
126
65×7 65×15
55×8
DN125
55×16
60×8 60×16
65×8 65×16
Table of diameter parameters of main inlet and outlet pipes for 130KW module
Unit model x quantity
Total inlet and outlet water
pipe diameter
Unit model x quantity
Total inlet and outlet water
pipe diameter
130×1 DN65 130×5 DN125
130×2 DN100 130×6 DN150
130×3 DN100 130×7 DN150
130×4 DN125 130×8 DN200
Table of diameter parameters of main inlet and outlet pipes for 185KW module
Unit model x quantity
Total inlet and outlet water
pipe diameter
Unit model x quantity
Total inlet and outlet water
pipe diameter
185×1 DN80 200×4 DN150
185×2 DN100 200×5 DN200
185×3 DN125
Table of diameter parameters of main inlet and outlet pipes for250KW module
Unit model x quantity
Total inlet and outlet water
pipe diameter
Unit model x quantity
Total inlet and outlet water
pipe diameter
250×1 DN100 250×5 DN150
250×2 DN100 250×6 DN200
250×3 DN125 250×7 DN250
250×4 DN150 250×8 DN250
Please pay attention to the following items when installing multiple modules:
● Each module corresponds to an address code which cannot be repeated.
● Main water outlet temperature sensing bulb, target flow controller and auxiliary electric heater are under
control of the main module.
● One wired controller and one target flow controller are required and connected on the main module.
● The unit can be started up through the wired controller only after all addresses are set and the
aforementioned items are determined. The wired controller is ≤50m away from the outdoor unit.
12.2.9 Chilled water flow
Minimum chilled water flow
The minimum chilled water flow is shown in the below table.
If the system flow is less than the minimum unit flow rate, the evaporator flow can be recalculated, as shown
in the diagram.
Evaporator
Recirculation
For minimum chilled water flow rate
For maximum chilled water flow rate
Evaporator
Recirculation
Maximum chilled water flow
The maximum chilled water flow is limited by the permitted pressure drop in the evaporator. It is provided in
the below table.
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
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