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9600 Compressor Installation, Operation, and Maintenance
P/N 8040540 4-3
C
HELIX TECHNOLOGY CORPORATION
-
TI C
RY
OG
EN
ICS
If you have concerns about system performance changing, then check the
normal system operating pressure which was determined in Compressor
Operation within this section. If the normal system operating pressure is
not correct, check the system for leaks.
Once the leaks have been repaired, helium must be added to return the
system to normal operating system pressure as described in
Section 5- Maintenance.
Replacement of Helium Circuit Components
On occasion, it may be necessary to replace components such as
cryopumps, helium gas lines or compressors, or change the configuration
of the system. Whenever any of these conditions occur, Static Helium
System Pressure Verification should be performed to ensure that static
helium pressure has not changed.
CAUTION
The use of several compressors on a single manifold feeding a common
supply header and a common return header requires special
precautions. Contact CTI-CRYOGENICS for a review of the intended
installation and for specific technical instructions.
The use of a 9600 compressor on a manifold with other
CTI-CRYOGENICS compressor models requires a reduction of the
helium charge pressure to 200--210 psig charge pressure to avoid
helium safety valves from inadvertently venting.