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HVAC NATE Heat Pump Questions and Answers Graded A+ | latest Update

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2023/2024 Written for academic year
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Course HVAC NATE
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On an R-22 system, line diameters and lengths are typically specified for a vapor pressure drop that does not exceed what? : 6-7PSI or 6F What is the primary purpose of using flux when soldering copper or brass parts? : Prevent Oxidation The water that results from a defrost cycle of an air to air heat pump(runoff) must? : Drain off and away from the outdoor coil. Why must the runoff be drained off and away from the outdoor coil? : Excessive ice can build up on the bottom of the coil and can reduce capacity. 2 What is the component that reduces sound transmission and prevents water leaks of a package heat pump installed on a roof? : Curb Gasket Why do you need to add a control for a heat pump indoor coil that is installed on a fossil fuel furnace? : So the heat pump and furnace do not operate at the same time in normal heating. What happens when you energize a hermetic refrigeration compressor and the system is in a deep vacuum? : Motor windings could become damaged.

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