This guide will keep you cool. Like its earlier editions, this fully updated guidebook is packed with practical information on installing, servicing, maintaining, and trouble-shooting air-conditioning systems. Whether you're an AC professional, an independent repair technician, or a cost-conscious homeowner, everything you need is here. Clearly organized and loaded with diagrams and illustrations, it's a vital addition to your toolbox. In this work, find concise, accurate information on installing and maintaining both residential and commercial systems. This work helps you: understand the physics of air conditioning and filtration; make accurate temperature measurements using various methods and devices; work with room air conditioners, water cooling systems, and auto air conditioning; learn about refrigerants, compressors, condensers, evaporators, and AC motors; and, service, troubleshoot, and repair both old and new AC units.