48 - Which of the following must be done when removing an existing R-410A system
and installing an A2L system?
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D - The install area must be checked it meets the mfr's. spec. & local code.
39 - Which is an example of an industry-accepted mitigation that can be used when
installing equip. that is charged with A2L?
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B - Permanent space ventilation
, 8 - Which of the following refrigerants is exempt from the EPA's recovery mandate?
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B - R-290
41 - After installation, the refrigerant piping for an A2L system must be;
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B - pressurized with dry nitrogen to perform a leak test.
11 - To avoid fractionation, blended refrigerants should be;
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A - charged as a liquid
43 - Patterns of adding refrigerant to an A2L system of at least once per three-year
period, should be considered;
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B - proof of a leak.
and installing an A2L system?
Give this one a try later!
D - The install area must be checked it meets the mfr's. spec. & local code.
39 - Which is an example of an industry-accepted mitigation that can be used when
installing equip. that is charged with A2L?
Give this one a try later!
B - Permanent space ventilation
, 8 - Which of the following refrigerants is exempt from the EPA's recovery mandate?
Give this one a try later!
B - R-290
41 - After installation, the refrigerant piping for an A2L system must be;
Give this one a try later!
B - pressurized with dry nitrogen to perform a leak test.
11 - To avoid fractionation, blended refrigerants should be;
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A - charged as a liquid
43 - Patterns of adding refrigerant to an A2L system of at least once per three-year
period, should be considered;
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B - proof of a leak.
