Type III — Low-PressureCâu 166 / 240
Because a low-pressure chiller operates in a vacuum on the low side, what happens when it develops a leak?
a.Refrigerant sprays out rapidly
b.Air and moisture are drawn into the system
c.The system pressure rises sharply
d.Nothing changes until the charge is empty
Giải thích
Since the low side runs below atmospheric pressure, a leak pulls air and moisture inward rather than pushing refrigerant out. That incoming air becomes non-condensable gas the purge unit must remove, and the moisture can cause acid and corrosion. This inward leakage shapes nearly every Type III service procedure.
Luyện miễn phí toàn bộ 240 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- The rupture disk on a low-pressure chiller is a safety device that is typically designed to relieve at what pressure?
- What is the primary purpose of a purge unit on a low-pressure centrifugal chiller?
- Which of the following is a low-pressure refrigerant used in centrifugal chillers?
- Water entering the refrigerant side of a low-pressure chiller through a leaking tube is dangerous mainly because it can:
- To speed up refrigerant recovery from a low-pressure chiller, a technician should:
- Frequent operation of the purge unit on a low-pressure chiller is usually a sign that:
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