MCAC-ATSM-2011-12 Air-cooled modular chiller unit 50Hz
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Note: For MGCSL-F(D)30W/RN1,MGB-D65WR/N1, MGBT-F250W/RN1
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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” port
ON/OFF signal
Power (DC 12V)
Main control board is provided
Red
Blue
○
2 .Remote mode selection: Wiring of “HEAT/COOL” weak electric port
Corresponding parallel connect the “HEAT/COOL” port of the main unit’s electric control box, then, connect
the “ON/OFF” signal (provide by user) to the “HEAT/COOL” port of main unit as follows.
0# electric
control box
“HEAT/COOL” port
ON/OFF signal
Power (DC 12V)
Main control board is provided
Brown
Black
○
3 .Wiring of “ALARM” port
Connect the device provided by user to the “ALARM” ports of the module units as follows.
electric control box
“ALARM” port
Device provided
by user
Red
Red
If the unit is operating normally, the ALARM port is closed, otherwise, the ALARM port is not closed.
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