Type III — Low-Pressure第 167 / 240 题
Water entering the refrigerant side of a low-pressure chiller through a leaking tube is dangerous mainly because it can:
a.Increase cooling capacity
b.Improve oil return
c.Cause acid formation and corrosion
d.Lower the refrigerant's boiling point
解析
Water that leaks into the refrigerant side reacts to form acids, corrodes metal parts, can freeze and damage tubes, and contaminates the refrigerant. Because the chiller runs under vacuum, a tube leak lets cooling water be pulled inward. Any sign of water intrusion calls for investigation, not just resetting controls.
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