There was some heavy lifting underway at the Evanston Public Library downtown this morning as crews used a heavy-duty crane to lift two old 12,000 pound air conditioning units off the building’s roof.

Library Director Mary Johns stood along Chicago Avenue snapping pictures and explaining to a passerby that the new, more-efficient air conditioning units being installed today will make it possible for the first time in several years to actually keep the library building cool in the summertime.

The new units, at just under 10,000 pounds, are lighter and smaller than the old ones and also qualify the city for a $16,000 rebate from the state that encourages use of energy-efficient equipment.

One old chiller unit sits on a semi-trailer truck as the other is lowered into place on a second truck.

Funding for the new units was approved by the City Council as part of the city’s capital improvement program.

Bill Smith is the editor and publisher of Evanston Now.

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