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Install the cryo chassis
1. Plug the cable on the back of the cryo chas-
sis into the connector that is just inside the
large hole. Push excess cable inside the GC.
2. Mount the cryo chassis on the left side of
the GC with the grommet over the small
tubing hole. Secure with four screws.
Coolant in
Released: April 2004
Install the restrictor tube
1. Make a hole through the insulation from the
2. The restrictor tube has a plastic cap on the
3. Remove the plastic cap. Install a stainless
Grommet
Coolant out
6850 Series Gas Chromatograph Service Procedures
interior of the oven to the grommet in the
cryo chassis.
long end. Push this end with the cap in place
through the hole in the oven wall, the insula-
tion, the hole in the side panel, and the
rubber grommet on the cryo chassis.
steel 1/16-inch nut and a Vespel ferrule.
Insert the tube in the coolant out union as
far as it will go and finger tighten the nut.
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