All of the following statements are true EXCEPT:
A) if mineral oil is mistakenly installed in an R-134A system, it will not lubricate the compressor properly and will separate in the accumulator.
B) moisture causes fewer problems in R-134A systems because it mixes with the PAG oil.
C) moisture control in R-134A is provided by the desiccant in the receiver/dryer or the evaporator.
D) commercial refrigeration units use ester oils, which are hygroscopic.
Correct Answer:
Verified
Q1: While having a discussion, Technician A says
Q2: The low-pressure gauge is a _ that
Q4: The high-side gauge registers temperature only.
Q5: Unlike brake fluid, stored refrigerant oil should
Q6: The material used for desiccants since the
Q7: The machine that will MOST-Likely remove the
Q8: The statement that is MOST-Likely true is:
A)
Q9: Which of the following statements is LEAST-Likely
Q10: The pressure reading in the system when
Q11: Which of the following is LEAST-Likely to
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