Levenhagen, John I. <br/><br/>
HVAC controls and systems / 
John I. Levenhagen and Donald H. Spethmann.. 
 - New York :  McGraw-Hill,  1993. 
 - xiii, 334 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Thermostats -- Dampers and damper motors -- Automatic valves -- Pneumatic transmitters, indicating receivers and receiver controllers -- Auxillary devices -- Construction systems and devices -- Electric and electronic control products -- Direct digital control -- Air-Handling Units -- Terminal units and systems -- Primary supply systems -- Heat pumps and heat pump controls -- Distribution systems of all types -- Supervisory control and total system optimization -- Operating and maintaining control and HVAC systems -- Total Facility approach to planning controls. 
<br/><br/><label>ISBN: </label>0070375097  
<br/><br/><label>LCCN: </label>92025594 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heating--Control.<br/>Air conditioning--Control.
<br/><br/><label>Dewey Class. No.: </label>697