Danfoss VLZ065, Инструкции по применению

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Manage superheat
During normal operation, refrigerant enters
the compressor as a superheated vapor. Liquid
flood back occurs when a part of the refrigerant
entering the compressor is still in liquid state. Liquid flood back can cause oil dilution and, in
extreme situations lead to liquid slugging that
can damage compression parts.
Requirement
System evaluation
In steady state conditions the expansion device
must ensure a suction superheat within 5K.
VLZ is designed for non-reversible application.
Liquid flood back test should be performed on unit as following table, otherwise, a suction
accumulator is mandatory
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AB444226142054en-000101