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Carbon dioxide safety, How the easycarb works – Taylor-Wharton EasyCarb User Manual

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Carbon Dioxide Safety

Cold Gas or Liquid may cause Frostbite. Carbon
dioxide is stored under pressure. If that pressure
is suddenly released, such as in a leaking or
broken pipe containing liquid, carbon dioxide
snow and very cold gas will be released. The
snow is really “dry ice”; its temperature and the
temperature of the surrounding gas can be as
low as -110ºF (-79ºC). Contact with your skin or
eyes may cause frostbite injury. If you are acci-
dentally exposed to cold snow or gas, consult a
physician at once. Warm affected areas with
water that is near body temperature.

Carbon Dioxide accumulations can Affect
Breathing. Carbon Dioxide tricks the respiratory
system – changing pulse rates and blood pres-
sure. Small concentrations of this gas can cause
disorientation or unconsciousness and possibly
death. All liquefied gas containers vent small
amounts of gas periodically when not in use.
This is normal. On the EasyCarb, this vented
gas is discharged outside the building through
the fill system plumbing. Too much carbon diox-
ide in a confined space can affect your breath-
ing. The area where elements of a carbonation
system are installed must have adequate ventila-
tion to ensure carbon dioxide cannot accumu-
late.

Additional Information. For additional information
on carbon dioxide, ask your supplier for a Mate-
rial Safety Data Sheet on this gas. Material
Safety Data Sheets contain complete hazard
and first aid information for the product that they
cover.

How the EasyCarb Works

The EasyCarb tank itself is vacuum-insulated
much like a thermos bottle. It consists of two
containers, one within the other, with a
sealed insulation space between them. The
inner tank holds the contents under a pres-
sure that varies between 125 psig (8.6 bar/
862 kPa) and 300 psig (20.7 bar/2068 kPa).
The EasyCarb tank is built to comply with
ASME Boiler and Pressure Vessel Code,
Section V111, Division 1, which applies to
permanently installed pressure vessels.

Although the EasyCarb contains liquid car-
bon dioxide to conserve space, only gas is
dispensed to the carbonator supply line.
Liquid in the container is constantly trying to
evaporate, expanding as it does so, to be-
come the carbon dioxide gas needed for
carbonation. An automatic circuit on the
EasyCarb speeds this evaporation as neces-
sary to meet the needs of high demand, and
turns off during periods of low demand.