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South Dakota HVAC Practice 15

Practice 15 for HVAC Exam learners in South Dakota: 25 questions, explained answers, and a review routine.

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Question 1

1

A reclaimer purchases recovered R-134a and processes it. To certify it for resale they must verify it meets AHRI 700 and:

Question 2

2

Under the venting prohibition, releasing nitrogen used for pressure testing that contains a trace of refrigerant is:

Question 3

3

A technician finds a 90-pound comfort-cooling chiller leaking at 12 percent annually. The 10 percent comfort-cooling trigger means the owner must:

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