GEA Bock HGX34P 2 pole - Manual (Page 14)

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4.9 Operating mode of the lockable service connections
Discharge line valve
4| Compressor assembly
Pipe connection
Pipe connection
Fig. 21
Opening the shut-off valve:
Spindle: turn to the left (counter-clockwise) as far as it will go.
—> Shut-off valve completely opened / service connection closed.
Fig. 22
Opening the service connection
Spindle: Turn ½ - 1 turn to the right clockwise.
—> Service connection opened / shut-off valve opened.
Service connec-
tion closed
Connection
blocked
Spindle
Service connec-
tion opened
Spindle
Connection
open
Compressor
Compressor