Type III — Low-PressureQuestion 167 of 240
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
Explanation
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.
Practice all 240 questions free — no signup required.
Related questions on this topic
- 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?
- Because a low-pressure chiller operates in a vacuum on the low side, what happens when it develops a leak?
- 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:
- A low-pressure refrigerant is defined as one with a boiling point at atmospheric pressure that is:
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against EPA Section 608 Technician Certification Exam · How we review