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HVAC Technical Exam H3-1 Questions and Answers
HVAC Technical
HVAC Technical
HVAC Technical Exam H3-1 Questions and Answers Threaded fittings in sizes larger than _____ inches shall not be used except where approved. - ANSWERS -4 inches (Fuel Chp 4) Each appliance shall be provided with a shutoff valve within _____ from the appliance. - ANSWERS -6 feet (Fuel Chp 4) Your installation requires a clearance to combustible materials for a single-wall metal pipe vent connector of 12 inches along the side wall. However, you only have 6 inches, what is the least expen...
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