MCAC-ATSM-2011-12 Air-cooled modular chiller unit 50Hz
155
24 No.2 unit low-temperature ant-freeze sensor TBH2-A
25 No.2 unit Inlet water temperature sensor TBH2-B
26
No.2 unit outlet water temperature sensor (fault code E4)
Under cooling mode and heating mode, conduct adjustment according to the magnitude of unit outlet water temperature.
Adjustment range of constant speed capability: ON and OFF.
27 Detection of current of the compressor B of No.2 unit (protection code P5)
28 Detection of current of the compressor A of No.2 unit (protection code P4)
29 Detection of current of the compressor B of No.1 unit (protection code P5)
30 Detection of current of the compressor A of No.1 unit (protection code P4)
31 No.1Transformer output
32
No.2 unit ADDRESS2 address code
Each modular part of modular unit has the same electric control function, and the main unit and slave 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 slave units. Only the unit is chosen as the main unit,
its electric control can activate such functions as direct communication with the wired controller, refrigerating and heating
capability adjustment, pump control, auxiliary electric heater control, total effluent temperature detection and water flow switch
detection.
33 No.2Transformer output
34 (reserved)
35
No.2 unit selection code of the compressor
36
No.1 unit selection code of the digital compressor
37
1) No.2 unit auxiliary electric heater(only the main unit is valid)
Attention: the control port value of auxiliary electric heater actually detected is ON/OFF but not 220-230V control power supply,
so special attention should be paid when installing the auxiliary electric heater.
Attention!
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