

Students learn the essentials of operating and repairing cooling/dehumidifying systems. Also covers condensing units and components, outside housings and insulation, 3 methods of heat transfer, plus differences in high- vs low-side pressure systems. Explains refrigeration cycles, compressors (scroll, reciprocating and piston), heat pumps, electrical controls, evaporators and sight glasses. Features on-line instructor's guide. Correlates to CTE standards including the Perkins Act.
21 min.
Instructional DVDs, Videos and Software are nonreturnable.