Controlling Evaporator through solenoid

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manual operation.jpg

Diagram to above post attached

No damage will occur to aluminium evaporator, even under vacuum.

Evaporator has to be specifically designed for TX valve, for correct circuiting.

Suction slop pot in suction line , normally high pressure liquid line runs through a coil inside it to boil off any refrigerant that gets carried over.
If no coil heater, coil is best.
Should have oil drain point on bottom of it as well as high level float switch to protect compressor.
Size it adequately to hold enough liquid from all evaporators if practical.

Evaporator piping is critical as well so each suction on each evaporator should go in the top of a main header above or below evaporator, sloped towards suction slop pot back in plant room.
You want to avoid liquid from other evaporators entering each other.