Operating manual – DualPAC with reciprocating compressors
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0012201 en 2021.04
3.2.14
Function of CVP valves
The ICS main valve with pilot valves EVM (NC) and CVP in parallel is mounted downstream from
the ICM expansion valve in order to avoid flash gas.
This introduces the risk of trapped liquid when the DualPAC is stopped. The CVP valve will open
the ICS valve if the pressure rises to above 20 bar.
The oil recovery pot is pressurised from both the ChillPAC and the HeatPAC. In order to avoid the
pressure rising above 22 bar, a CVP valve is installed in a pressure relieve line to the liquid injec-
tion to the GHUR intermediate cooler. For adjustment of the set pressure, please see the manual
for CVP valves.
