Energy-saving method checks refrigerant level in air conditioners

(PhysOrg.com) -- Engineers have developed a technique that saves energy and servicing costs by indicating when air conditioners are low on refrigerant, preventing the units from working overtime.

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<p><a href="http://www.physorg.com/news164918343.html">Energy-saving method checks refrigerant level in air conditioners</a></p> <p>(PhysOrg.com) -- Engineers have developed a technique that saves energy and servicing costs by indicating when air conditioners are low on refrigerant, preventing the units from working overtime.</p>