Not being a refrigeration engineer by the trade and the training, I need a bit of help from the professionals.

What is the point of not using on such a chilling unit of neither receivers nor - what is more important - the liquid line solenoid valves:
- two screw compressors (two separate R404a systems),
- their air-to-air condensers are at roof,
- their evaporators (beneath the compressors) are inside a common shell, chilling glycol ethylene water down to minus 8 C,
- expansion devices are EEVs.