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Caution
ATTENTION: (Carrier-) gas emerges at the cylinder pressure!
4.
Remove the empty cylinder A and connect the full replacement cylinder
A.
5.
Open the cylinder valve of A and then close it again.
6.
Open vent valve 1A and close 1A again after pressure equalization.
Caution
ATTENTION: (Carrier-) gas emerges at the cylinder pressure!
7.
Carry out steps (5.) and (6.) two additional times in order to flush the air
out of the high-pressure area.
8.
Open cylinder valve A and then extraction valve 2A.
At the time of commissioning or if both cylinders must be replaced, carry out steps
1. to 9. for cylinder A and for cylinder B in succession. If the line between the
switchover unit and valve 2A or valve 2B has not been vented (e.g. with a cylinder
replacement during normal operation), the procedure is now finished. Otherwise
(e.g. during commissioning), the following steps must be carried out afterwards in
order to flush the air out of the entire system.
9.
While the carrier gas inlet valve is closed, unscrew the screwed connec-
tion at the carrier gas inlet of the PGC until the carrier gas can escape
unimpeded. In the process, do not completely unscrew the cap nut.
10.
At the secondary pressure regulator of the switchover unit, adjust the ex-
traction pressure as close to 5.5 bar as possible
11.
Allow the carrier gas to flow out under extraction pressure for about 2
minutes.
12.
Switch the selector switch to the opposite position (cylinder) and allow
the carrier gas to flow out for an additional 2 minutes in order to ensure
that the air is flushed out of both sides of the switchover unit.
13.
Re-tighten the screw connection on the carrier gas inlet of the PGC.
14.
Check all lines to ensure that there are no leaks.
15.
Use the selector switch to select the cylinder that should be used for ex-
traction during operation.
1 About this manual
Manual PGC 9300 EN07 June, 18th 2018
21
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