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NITROGEN
To begin working with the Ultima 250 dental unit using nitrogen, you will need ¼ outside diameter
tubing. Cut the ¼” tubing to the length needed between the nitrogen source and the location the
unit will be used. Connect the male quick disconnect fittings provided with the unit to the ¼” tubing,
connect the male quick disconnect without the shut-off valve to the nitrogen source. Run the
tubing to the unit from the nitrogen source and connect the male quick disconnect fitting with the
shut off valve to the female disconnect fitting on the side of the unit labeled Filtered Air In. Set the
air pressure from the nitrogen source to 70 Psi. NEVER EXCEED 80 Psi GOING INTO THE
UNIT!
*If you are using a nitrogen regulator not provided by Ultima Dental Systems then additional
hardware may be required to install the unit. Contact your local gas company for Nitrogen E-tank
and H-tank refills. Ultima Dental Systems only sells H-tank regulators. Your local gas company will
be able to provide you with an E-tank regulator if you choose to use a smaller nitrogen tank.