Operating Mode Of The Lockable Service Connections; Suction Pipe Filter And Filter Drier Dgb - BOCK HGX34e A Series Assembly Instructions Manual

4 | Compressor assembly
4.8 Operating mode of the lockable service connections
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.
Opening the service connection
Spindle: Turn ½ - 1 turn to the right clockwise.
—> Service connection opened / shut-off valve opened.
After activating the spindle, generally fit the spindle protection cap again and tighten with 14-16 Nm.
This serves as a second sealing feature during operation.
4.9 Suction pipe filter and filter drier
For systems with long pipes and higher degree of contamination, a filter on the suction-side is
recommended. The filter has to be be renewed depending on the degree of contamination (reduced
pressure loss).
Moisture in the refrigeration circuit can lead to crystal and hydrate formation. For this reason, we
recommend using a filter drier and a sight glass with a moisture indicator.
Service connec-
tion closed
Connection
blocked
Service connec-
tion opened
Connection
Spindle
open
Spindle
Pipe connection
Compressor
Fig. 15
Pipe connection
Compressor
Fig. 16
D
GB
F
E
13