Type II — High-PressureQuestion 148 of 240
A technician is deciding between liquid and vapor recovery on a Type II system with a moderate charge. Which statement correctly compares the two?
a.Vapor recovery is always faster than liquid recovery
b.Liquid recovery is illegal under Section 608
c.Liquid recovery is faster for larger charges, while vapor recovery is used to finish and clear the remaining refrigerant
d.Only vapor recovery can be used on high-pressure systems
Explanation
Liquid recovery moves refrigerant faster and is preferred for larger charges, while vapor recovery is typically used to pull down and clear the last of the refrigerant after the liquid is gone. Many jobs start in liquid mode and switch to vapor to finish. Both methods are legal, and liquid recovery is common on high-pressure systems.
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