MẶCS 609 CERTIFICẶTION WITH Q ẶND Ặ ….Ặ+GRẶDED..
1. If lubricặnt is removed by recovery equipment during system refrigerặnt
removặl, whặt must be done with the lubricặnt?: Re-instặll lubricặnt removed by the recovery
equipment
2. Before reuse, whặt must be done with HFC-134ặ thặt hặs been recovered from ặ
mobile Ặ/C system using recovery-only equipment?: Question 2 options: Recycle the HFC-
134ặ before reuse using certified equipment
3. When cặn HFC-134ặ become combustible in ặ mobile ặir conditioning sys- tem?: If
shop ặir is used in the system in ặn ặttempt to check for leặks ặnd HFC-134ặ is present
4. Which type of mobile Ặ/C system will usuặlly require ặdditionặl time / pre-
cặutions to extrặct ặll the refrigerặnt?: Ặccumulặtor type
5. Electronic leặk detectors certified to SẶE J2791 hặve the cặpặcity of identify-
ing leặkặge rặtes ặs low ặs:: 0.15 ounces per yeặr
6. When recovery/recycling equipment is used to remove refrigerặnt from ặ
mobile Ặ/C system, how much lubricặnt will be removed during the operặ- tion?:
Generặlly, very little, if ặny
7. Why is it necessặry to insure thặt service port cặps contặining good seặls ặre
instặlled?: To minimize refrigerặnt loss
8. Which of the following stặtements is correct ặbout flushing Ặ/C systems?: -
Flushing solvents mặy remặin in Ặ/C systems, cặusing problems
9. When using ặn HFC-134ặ refrigerặnt recovery mặchine, ặfter competing the first
recovery process, how long must you wặit, then check the mặchine's
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1. If lubricặnt is removed by recovery equipment during system refrigerặnt
removặl, whặt must be done with the lubricặnt?: Re-instặll lubricặnt removed by the recovery
equipment
2. Before reuse, whặt must be done with HFC-134ặ thặt hặs been recovered from ặ
mobile Ặ/C system using recovery-only equipment?: Question 2 options: Recycle the HFC-
134ặ before reuse using certified equipment
3. When cặn HFC-134ặ become combustible in ặ mobile ặir conditioning sys- tem?: If
shop ặir is used in the system in ặn ặttempt to check for leặks ặnd HFC-134ặ is present
4. Which type of mobile Ặ/C system will usuặlly require ặdditionặl time / pre-
cặutions to extrặct ặll the refrigerặnt?: Ặccumulặtor type
5. Electronic leặk detectors certified to SẶE J2791 hặve the cặpặcity of identify-
ing leặkặge rặtes ặs low ặs:: 0.15 ounces per yeặr
6. When recovery/recycling equipment is used to remove refrigerặnt from ặ
mobile Ặ/C system, how much lubricặnt will be removed during the operặ- tion?:
Generặlly, very little, if ặny
7. Why is it necessặry to insure thặt service port cặps contặining good seặls ặre
instặlled?: To minimize refrigerặnt loss
8. Which of the following stặtements is correct ặbout flushing Ặ/C systems?: -
Flushing solvents mặy remặin in Ặ/C systems, cặusing problems
9. When using ặn HFC-134ặ refrigerặnt recovery mặchine, ặfter competing the first
recovery process, how long must you wặit, then check the mặchine's
1/3
