8
+030220585 - 1.1 - 10.12.2015
ENG
4. ACTIONS ON RPRV VALVE SET POINT
FOR ACTIVATION
To prevent the fl ash valve from simultaneously controlling the parallel compression function, as this is more
effi
cient than the bypass, the RPRV valve control set point is increased so as to close the valve.
SET POINT RPRV
35 barg
SET POINT RPRV
35 barg
SET POINT RPRV
38 barg
SET POINT RPRV
38 barg
OFF
CONTROL
ON
CONTROL
ON
CONTROL
ON
CLOSE
1
Parallel Compression Control
2
Parallel Compression Feedback
3
Control set point increase
for flash valve
4
Closing flash valve
Fig. 4.a
On screen Cca03, the off set to be applied to the RPRV valve set point and the incremental time to apply this
for can be set:
When parallel compression is deactivated due to one of the conditions described above, the RPRV valve set
point returns to the standard value, in the time set on screen Cca03.