http://www.apcmedia.com/salestools/T...XPED_R1_EN.pdf a conversion table
for A/c tons is at the end of the article

Excerpt: Ton (Cooling)
A measurement of heat energy commonly used historically to measure heat
loads
in North America. A ton is equal to 12,000 BTUs and is the amount of heat
energy required to melt
2000 pounds (907kg) of ice in one hour. This is an archaic term typically
used to specify heat output when
expressed in Tons/day, where the use of the more modern term Watts is the
simpler and more universal
measure that should be used. Conversions from Tons to Watts are provided at
the end of this paper.

A/c tons represent a truly archaic term. Needless to say, the rest of the
world has been using the much simpler and more elegant metric system for the
last 200 years. Only the following countries do not use the metric system:
United States, Liberia, and Myanmar. Looks like Americans cannot cope with
the simplicity of grams and kilograms. They struggle with fractions of feet,
chains, rod and miles, instead of using simple millimeters, centimeters,
meters and kilometers.

http://en.wikipedia.org/wiki/Metric_system

--
Walter
www.rationality.net
-
"Abe" wrote in message
...
I tried looking it up on the web, but couldn't find anything that
describes exactly what it means.





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