Type II — High-Pressure第 149 / 240 题
A technician is about to add liquid refrigerant into the suction line of a running compressor to charge faster. Why is this dangerous on a Type II system?
a.It cools the refrigerant too much
b.It has no effect on the compressor
c.It only affects R-410A systems
d.Liquid entering the suction can slug and mechanically damage the compressor
解析
Feeding liquid directly into the suction of a running compressor can cause liquid slugging, which can bend valves or break internal parts because liquid does not compress. When adding liquid to the low side, it must be metered or throttled so it flashes to vapor before reaching the compressor. This risk applies to high-pressure systems in general, not just R-410A.
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