Most of the super market refrigeration units are equipped with one of these storage equipment.
When the unit is turned off, will the refrigerent (in receiver) still be in the liquid state? Its only when the compressor is running, the pressure is maintained so the liquid stays liquid at that pressure.

If is stays liquid, wont it flood back to the compressor, considering the fact that the receiver is in the discharge/liquid line?

Can anyone explan what happens when the unit is shut down (the state of refrigerent)