A purge unit ____.

Question

A purge unit ____.

Quizplus · Accepted Answer

A purge unit is designed to relieve non-condensable gases (such as air, nitrogen, or oxygen) from the refrigeration system to prevent them from accumulating in the condenser and reducing its efficiency. This is typically done by opening a valve to release the gases to the atmosphere. The other options, such as providing subcooling or superheat, are functions of other components in the refrigeration system (such as the condenser or metering device). Capacity control may be achieved using various methods, but a purge unit is not typically involved in this function.

A Purge Unit ____