The Refrigeration Service Engineers Society released two CD exam review presentations for the North American Technician Excellence (NATE) exams. The Core Service Review CD covers topics such as: heat transfer - temperature and humidity measurement, total comfort and basic science; electrical - basic electricity, AC motors, electrical diagrams and electrical meters; and soft skills - communication with customers, mathematics, interpersonal relations, and personal ethics and conduct.

The Air Conditioning Service Review CD covers topics such as: fabricating copper tubing; installing condensing units, packaged units and indoor equipment; evacuation and charging; and installing accessories. Visit to purchase the CDs.