Olicom 9600 manual Replacement of Helium Circuit Components

9600 Compressor Installation, Operation, and Maintenance

CTI-CRYOGENICS

HELIX TECHNOLOGY CORPORATION

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.

P/N 8040540 4-3