Objectives

• After studying this unit, you should be able to
• describe the three most popular types of expansion devices.
• describe the operating characteristics of the three most popular expansion devices.
• describe how the three expansion devices respond to load changes.
• describe the operation of a balanced-port expansion valve.
• describe how electronic expansion valves and their controllers operate.
• explain the operation and operating charge of a system incorporating a capillary tube metering device.

Next: Advance to the Learning Center Dashboard and complete the lessons.