Bryan Orr embarks on the EPA 608 Certification Prep series, this is Part 1 that covers the core material of the testing.
Read all the tech tips, take the quizzes
and find our handy calculators at https://www.hvacrschool.com/
source
Bryan Orr embarks on the EPA 608 Certification Prep series, this is Part 1 that covers the core material of the testing.
Read all the tech tips, take the quizzes
and find our handy calculators at https://www.hvacrschool.com/
source