Thermo Scientific Nicolet Series User Manual page 16

Installing or Replacing Hardware
Installing a Purge Kit
12 Nicolet iS20 User Guide
2. If you used a 1/4 inch male fitting, proceed to the next step.
If you used a 3/8 inch female fitting on the purge gas source, install the 3/8 inch to
1/4 inch reducing nipple that was included with your purge kit. Wrap the reducing
nipple with Teflon pipe tape before you install it, and use an 11/16 inch open-ended
wrench to tighten the connection.
3. Wrap the reducing nipple or the 1/4 inch male fitting with Teflon pipe tape, and then
install the pressure coupling. Use a 3/4 inch open-ended wrench to tighten the
connection.
4. Install the purge filter, pressure regulator and flow meter, and then snap the assembly into
the pressure coupling.
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