MACS 609 CERTIFICATION
Study online at https://quizlet.com/_9ng5l1
1. If lubricant is removed by recovery equipment during Re-install lubricant re-
system refrigerant removal, what must be done with moved by the recovery
the lubricant? equipment
2. Before reuse, what must be done with HFC-134a that Question 2 options:
has been recovered from a mobile A/C system using Recycle the HFC-134a be-
recovery-only equipment? fore reuse using certified
equipment
3. When can HFC-134a become combustible in a mobile If shop air is used in the sys-
air conditioning system? tem in an attempt to check
for leaks and HFC-134a is
present
4. Which type of mobile A/C system will usually require Accumulator type
additional time / precautions to extract all the refrig-
erant?
5. Electronic leak detectors certified to SAE J2791 have 0.15 ounces per year
the capacity of identifying leakage rates as low as:
6. When recovery/recycling equipment is used to re- Generally, very little, if any
move refrigerant from a mobile A/C system, how
much lubricant will be removed during the operation?
7. Why is it necessary to insure that service port caps To minimize refrigerant loss
containing good seals are installed?
8. Which of the following statements is correct about Flushing solvents may re-
flushing A/C systems? main in A/C systems, caus-
ing problems
9. 5 minutes
1/3
Study online at https://quizlet.com/_9ng5l1
1. If lubricant is removed by recovery equipment during Re-install lubricant re-
system refrigerant removal, what must be done with moved by the recovery
the lubricant? equipment
2. Before reuse, what must be done with HFC-134a that Question 2 options:
has been recovered from a mobile A/C system using Recycle the HFC-134a be-
recovery-only equipment? fore reuse using certified
equipment
3. When can HFC-134a become combustible in a mobile If shop air is used in the sys-
air conditioning system? tem in an attempt to check
for leaks and HFC-134a is
present
4. Which type of mobile A/C system will usually require Accumulator type
additional time / precautions to extract all the refrig-
erant?
5. Electronic leak detectors certified to SAE J2791 have 0.15 ounces per year
the capacity of identifying leakage rates as low as:
6. When recovery/recycling equipment is used to re- Generally, very little, if any
move refrigerant from a mobile A/C system, how
much lubricant will be removed during the operation?
7. Why is it necessary to insure that service port caps To minimize refrigerant loss
containing good seals are installed?
8. Which of the following statements is correct about Flushing solvents may re-
flushing A/C systems? main in A/C systems, caus-
ing problems
9. 5 minutes
1/3
