Type III — Low-Pressure第 196 / 240 题
When handling a large recovery cylinder of R-11 removed from a chiller, the technician must remember to:
a.Fill it completely to save space
b.Store it on its side near a heater
c.Leave the valve open to relieve pressure
d.Fill to no more than 80 percent and keep it cool
解析
Even low-pressure refrigerant cylinders must never be filled above 80 percent by weight, leaving room for liquid expansion, and should be stored cool and upright below 125°F. Overfilling can lead to hydrostatic rupture as temperature rises. Always weigh the cylinder rather than guessing.
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