Recovery & Recycling第 226 / 240 题
Non-condensable gases in a recovery cylinder can cause a falsely high pressure reading. The best way to limit them is to:
a.Fill the cylinder faster
b.Avoid drawing air into the system and equipment during recovery
c.Add nitrogen to the cylinder
d.Heat the cylinder before filling
解析
Preventing air from entering the system, hoses, and cylinder during recovery keeps non-condensable gases low, which keeps pressure readings accurate and the refrigerant cleaner. Adding nitrogen or heating the cylinder would make the problem worse. Purging air and keeping fittings tight are the correct practices.
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同考点相关题目
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