Herman, Stephen L. <br/><br/>
Electricity and controls for HVAC-R / 
Stephen Herman, Ron Sparkman 
 - 7th ed. 
 - Stamford, CT :  Cengage,  2014 
 - xi, 593 p. :  ill. (some color) ;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9781133278207 (pbk.) 1133278205 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Buildings--Electric equipment<br/>Heating--Control<br/>Air conditioning--Control