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  1. General HVAC Discussion
    Hi guys, Well I took my EPA test last week, and I'm excited to do some HVAC work. I'm quite "green" with only knowledge from reading and watching others. So I still have many questions. My interest in refrigerants is mainly as a scientist and system designer, not to become a contractor. I...
  2. General HVAC Discussion
    Hi guys, I've been studying for the 608 exam for a few weeks now. Tonight I'm flipping through 100 or so flashcards I found online*. I've seen several questions which refer to "non pressurized containers". Here is an example: Question: A standard vacuum pump designed for evacuation &...
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