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Wisconsin HVAC Practice 10

Practice 10 for HVAC Exam learners in Wisconsin: 25 questions, explained answers, and a review routine.

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Question 1

1

R-22 is classified under which refrigerant family, and why is it being phased out?

Question 2

2

Which EPA 608 certification type covers technicians who service small appliances containing five pounds or less of refrigerant, such as household refrigerators and window AC units?

Question 3

3

A technician recovers refrigerant from a large commercial chiller using R-123. After recovery, what vacuum level must be achieved, and which EPA 608 type covers this equipment?

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