To pull a vacuum means to ____.
A) raise the pressure in a refrigeration system
B) lower the pressure in a refrigeration system below atmospheric
C) allow refrigerant to escape into the atmosphere
D) condense the gas in the system

Question

Quizplus · Accepted Answer

To pull a vacuum means to lower the pressure in a refrigeration system below atmospheric. This is typically done to remove any moisture or air from the system before charging it with refrigerant.

To Pull a Vacuum Means to ____