Type III mock exam, question 29 of 50

A technician pulls the vapor space of an R-123 chiller to 25 mm Hg absolute, but liquid is still pooled in the bottom of the evaporator. Has the evacuation requirement been met?

• ANo; the refrigerant must be evacuated, including all the liquid
• BYes; the rule measures the vapor pressure only, not the liquid level
• CYes, if the liquid amount is under 200 pounds
• DOnly if the recovery unit was made after 1993