Operating Mode Of The Lockable Service Connections; Suction Pipe Filter And Filter Drier - Danfoss BOCK HG44e Operating Manual

6 | Compressor assembly
6.7 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.
The connection which cannot be shut off is intended for safety devices.
D
GB
F
E
Opening the service connection
Spindle: Turn ½ - 1 turn to the right clockwise.
—> Service connection opened / shut-off valve opened.
The connection which cannot be shut off is intended for safety devices.
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.
6.8 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.
16 | AQ452044031215en-000201
Service connection
closed
Connection
Spindle
blocked
Service connection
opened
Connection
Spindle
open
Connection cannot
be shut off
Pipe connection
Compressor
Connection cannot
be shut off
Pipe connection
Compressor
© Danfoss | Climate Solutions | 2023.06
Fig. 9
Fig. 10