Operating The Shut-Off Valves; Operating Mode Of The Lockable Service Connections Dgb - GEA HGX6 R134a series Assembly Instruction Manual

4| Compressor assembly

4.6 Operating the shut-off valves

Before opening or closing the shut-off valve, release the valve spindle seal by approx. ¼ of a turn
counter-clockwise.
After activating the shut-off valve, re-tighten the adjustable valve spindle seal clockwise.
Fig. 12
4.7 Operating mode of the lockable service connections
D
GB
F
E
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.
The connection which cannot be shut off is intended for safety devices.
Opening the service connection
Spindle: Turn ½ - 1 turn clockwise.
—> Service connection opened / shut-off valve opened.
The connection which cannot be shut off is intended for safety devices.
12
Valve spindle seal
Service connec-
tion closed
Spindle
Service connec-
tion opened
Spindle
Fig. 13
Connection
blocked
Connection
open
Release
Tighten
Connection cannot be
shut off
Pipe connection
Fig. 14
Compressor
Connection cannot be
shut off
Pipe connection
Fig. 15
Compressor