Meech A60008, Руководство по эксплуатации

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13
7. Operation
Coldstream Gun
All Coldstream Guns are set to deliver the most efficient cooling possible. Coldstream
Guns are factory set to 70% cold fraction at 80psi (5.4 Bar). As standard they are fitted
with a Red 15 cfm Generator, so approximaty 10cfm of cold air will exit through the cold
end of the Coldstream Gun.
Cold Fraction
The Cold fraction is the percentage of input compressed air that is released through
the cold end of the Coldstream Gun. The Cold Fraction is adjusted in two ways, by
adjusting the control relief valve to exhaust more or less air (Adjustable version only) or
by changing the generator inside the Coldstream Gun.
There are two levels of Generator, either a “high” or “low” cold fraction model. A “high”
cold fraction Generator is where more than 50% of the air flow exits through the cold
end of the Coldstream Gun. This setting will suit most industrial applications as it
provides the most efficient cooling, although not the coldest possible temperature.
A “low” cold fraction Generator is where less than 50% of the air flow exits through the
cold end of the Coldstream Gun. This setting will provide the lowest air temperatures
but will not be as efficient.
Generators
The Coldstream Gun is supplied with a set of 4 high fraction Generators as standard.
„
Yellow 10cfm (283 l/min)
„
Red 15cfm (425 l/min)
„
Blue 25cfm (708 l/min)
„
Brown 35cfm (991 l/min)
There are also 4 Cold Fraction generators available,
The Generators within the Coldstream Gun control the air consumption and air flow,
they also influence the achievable temperatures.