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HVACR 401: HEAT PUMPS sets itself apart from other books on the market with its emphasis on the service technician perspective, instead of the design engineer viewpoint. The book begins with a review of the refrigeration cycle in comfort conditioning, and gradually progresses to more in-depth topics, including electrical schematics, maintenance, geothermal heat pumps, and troubleshooting case studies. With content that has been closely reviewed and revised in conjunction with the most respected national organizations in the HVACR industry (ACCA, PHCC, and RSES), this will prove to be a valuable learning tool that offers a wide range of critical concepts, presented in a clear, straightforward manner that facilitates comprehension and encourages you to apply the information as you learn it.Manually placing the systemindefrost mode, the technician ensured thatthe coil was frostfree before reattaching the sensor. By allowingthe systemto run for an extended periodand checking the sensor, the technician ensured that the defrost system wasfunctioning correctly before leaving the service call. THE SUN, HEAT, AND ABSOLUTE ZERO The sun isresponsible for heating the air, causinganbsp;...

Title:HVACR 401
Author:ACCA, PHCC Educational Foundation & RSES
Publisher:Cengage Learning Trade - 2011-05-10


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