1 Installing the GC
50 Installation and First Startup
Figure 13. Location of cryogenic cooling valve
2 Connect the supply tubing to the liquid CO
2
tank outlet with the fitting recommended by the
supplier.
3 Use a Swagelok fitting to connect the supply tubing to the cryogenic valve inlet.
Connecting liquid nitrogen
Materials needed
• 1/4-inch insulated copper tubing
Procedure
1 Position the nitrogen tank as close to the GC as possible to insure that liquid and not gas is
delivered to the inlet.
2 Locate the inlet for coolant on the rear of the GC. Prepare enough tubing to reach from the
supply tank to this outlet. See Figure 14.
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