The Metering Device course explores the multitude of regulating valves in an HVAC system. The thermostatic expansion valve (TEV) will be introduced and you will learn how it adjusts to maintain superheat. You will be able to identify valve types, discover how they are fitted to a pipe, and the differences in external and internal pressure equalization. Discover TEV bulbs and their roles in regulating superheat within the system, along with proper placement and methods for installation. Learn the unique model codes for some common manufacturers and the functions of several different kinds of metering devices.
Back to Course Title