n
2
Vin
Setup and Operations Manual © 2008
18
On most countertops of 24” or greater depth, the cylinder can lie or stand behind the
back of the n2Vin cabinet.
The plastic gas supply tube can be cut to suit your setup requirements and can be easily
extended with similar vinyl tubing from hardware, etc. stores. You would need a barb-
fitting connector to connect additional tube to the existing tube furnished with the
system. The spec for this:
¼” OD Vinyl tubing with an ID no larger than 0.170”
(standard) +
plastic, brass or stainless barb fittings to match the tube size. You can easily check new
connections by immersing them in a small pan of water when the Nitrogen Gas Supply is
ON.
Note 5:
For initial operation with the standard regulator combination, please turn the Red
Pressure Adjustment Knob on the Low-Pressure Regulator to OFF, and, then, turn 3 full
turns ON to reach approximately 3 PSIG initial delivery pressure. After some dispensing
trials, adjust flow by turning the knob UP or DOWN in 1/8-turn increments to suit
preferences.
Note 6:
If using Pony or Lecture cylinders or Leland Disposable Nitrogen Cylinders, remove the
two top back screws and install the “J” Cylinder Cradle. Leland Disposables require a
specialized, non-adjustable 5PSIG regulator.
APPENDIX TWO – Gas Suppliers
Most cities and towns have a number of compressed gas suppliers including those
covering industrial, medical and hospitality requirements. The FDA, which establishes
guidelines for food safety suggests nitrogen gasses used for food applications, “Food
Grade” be 99.9% pure. This is not a particularly stringent requirement. What is most
important is that the interior of the cylinder containing the gas is clean.
AirGas Companies and their affiliated outlets abound.
Store locators at:
www.airgas.com
and 866-924-7427
PraxAir:
www.praxair.com
and 716-879-4077
While pure Nitrogen is not commonly stocked at most medical-supply outlets, they can
quickly order cylinders of a smaller, more convenient size, typically, more readily than
industrial gas suppliers can – and for a higher cost. Again the valve specification is CGA-
580.
High Pressure
Disposable
Cylinders and their specialized regulators are available from
Leland, Ltd.
www.lelandltd.com
or 908-561-2000 (5PSIG fixed pressure output P/N 50043
with your choice of 18g Nitrogen cylinders P/N 88123 or 26g Argon cylinders P/N 88124)
