16
D
GB
F
E
96460-08.2018-DGb
Fig. 20
Fig. 21
4.9 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.
Opening the service connection
Spindle: Turn
1/2
- 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.
To ensure the oil return function will work reliably no matter what kind of system configuration you
are using, GEA recommends incorporating oil separators or oil level monitoring equipment. The "O"
connection is already available from the factory for the purpose of installing the additional oil level
monitoring component. Oil should be returned from the oil separator to the compressor via the "D1"
connection provided for this purpose on the compressor.
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 contamina
-
tion (reduced pressure loss).
4.10 Oil return
4.11 Suction pipe filter
After activating the spindle, generally fit the spindle protection cap again and tighten with 40 - 50 Nm.
This serves as a second sealing feature during operation.
Pipe connection
Pipe connection
Service connec-
tion closed
Connection
blocked
Spindle
Connection cannot
be shut off
Service connec-
tion opened
Spindle
Connection
open
Compressor
Compressor
Connection cannot
be shut off
4
|
Compressor assembly
