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HVAC 230 Exam Review - Questions with Verified Answers
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HVAC 230 Exam Review - Questions with Verified Answers What is the maximum distance from the appliance to a gas shutoff? 6' Where do you leave the installation and operation manual? on premise The venting charts in NFPA54 use what winter design temperature -10 to 4˚F What is the minimum pipe siz...
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