EPA 608 Type III · Refrigeration Fundamentals · Medium
Which HCFO refrigerant is replacing R-123 in new low-pressure chillers?
Answer: D. R-1233zd(E).
- AHFC-410A.
- BHCFC-123.
- CCFC-11.
- DR-1233zd(E).✓ Correct
Why D is right
R-1233zd(E) is an HCFO with near-zero ODP and a GWP of about 1, used in place of R-123 in new low-pressure centrifugal chillers.
More Type III questions
- Which of the following is considered a low-pressure refrigerant?
- Where is the rupture disc typically located on a low-pressure chiller?
- What is the primary purpose of a purge unit on a low-pressure centrifugal chiller system?
- Where does the purge unit take its suction from?
- What does frequent operation of the purge unit indicate?
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A practice question written for study, checked against 40 CFR Part 82, Subpart F. It is not an official EPA exam question, and this site is not affiliated with the U.S. EPA.