Maneurop Refrigeration Hermetic Reciprocating Compressor MTZ160HW4AVE

Product description:

Liquid floodback in systems working with a zeotropic refrigerant such as R407C introduces additional negative effects. A part of the refrigerant leaves the evaporator in liquid phase and this liquid has a different composition than the vapor.
This new refrigerant composition may result in different compressor operating pressures and temperatures.
In refrigeration applications, the Liquid Line Solenoid Valve (LLSV) is highly recommended. During the off-cycle, the LLSV isolates the liquid charge in the condenser side, thus preventing against refrigerant transfer or excessive migration of refrigerant into the compressor. Furthermore, when using a LLSSV in conjunction with a pump-down cycle, the quantity of refrigerant in the low-pressure side of the system will be reduced.
A pump-down cycle design is required when evaporators are fitted with electric defrost heaters.