Electrical Parts Parameter Setting - Midea LSBLG MCF Series Technical & Service Manual

Flooded type water cooled screw chiller (MIC)
The electronic expansion valve is equipped with a stepping motor which controls the valve status. A
special-purpose electronic expansion valve control module is required to drive the electronic expansion
valve.
6) Solenoid Valve
When the solenoid valve is energized, the electromagnetic coil generates electromagnetic force to pull
up the closed component from the valve seat and open the valve. When the solenoid valve is powered
off, the spring pushes the closed component to the valve seat once the electromagnetic force disappears
and the valve is closed. Voltage of the solenoid valve washer is AC220V, and it is driven directly by the
main control board output.
3.

Electrical parts parameter setting

1) Power protector
Power protector use Schneider RM17TU type.
① Select the voltage class. For standard units, the voltage is 380 V.
① Set the delay to 6s.
② Set the under voltage value to 10%.
Note: Set the processing parameters only when the system is powered off.
2) Time Relay
56
MCAC-CTSM-2018-1
U： 380V
T： 6S
＜ U ：
-10%
Power LED ，on lighting
Running LED
Normal lighting;
fault off