Operating The Shut-Off Valves; Operating Mode Of The Lockable Service Connections - Danfoss BOCK UL-HGX12P Operating Manual

Reciprocating compressor
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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.
counter-clockwise.
After activating the shut-off valve, re-tighten the adjustable valve spindle seal clockwise.
Valve spindle seal
Fig. 7

4.7 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.
Opening the service connection
1 /
Spindle: Turn
- 1 turn to the right clockwise.
2
—> Service connection opened / shut-off valve opened.
After activating the spindle, generally fit the spindle protection cap again and tighten with 14-16 Nm
(10.3-11.8 lb-ft). This serves as a second sealing feature during operation.
© Danfoss | Climate Solutions | 2023.07
Service connec-
tion closed
Spindle
Connection
blocked
Service connec-
tion opened
Connection
Spindle
open
Tighten
Release
Fig. 8
Pipe connection
Compressor
Pipe connection
Compressor
AQ450440479309en-US0201 | 11
1 / 4
of a turn
US
Fig. 9
Fig. 10

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