Electricity and controls for HVAC 
Herman, Stephen L. 
 - Sixth edition. 
 -  Delmar, Cengage Learning.  2010 
 - x, 591 pages 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Air-conditioning -- Control.
<br/><br/><label>Dewey Class. No.: </label>697 H551 2010