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HVAC NATE Heat Pump Exam | Questions and Correct Answers | Latest Update 2024/2025

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HVAC NATE Heat Pump Exam | Questions and Correct Answers | Latest Update 2024/2025 On an R-22 system, line diameters and lengths are typically specified for a vapor pressure drop that does not exceed what? - Answer -6-7PSI or 6F What is the primary purpose of using flux when soldering copper or brass parts? - Answer -Prevent Oxidation The water that results from a defrost cycle of an air to air heat pump(runoff) must? - Answer -Drain off and away from the outdoor coil. Why must the runoff be drained off and away from the outdoor coil? - Answer -Excessive ice can build up on the bottom of the coil and can reduce capacity. What is the component that reduces sound transmission and prevents water leaks of a package heat pump installed on a roof? - Answer -Curb Gasket Why do you need to add a control for a heat pump indoor coil that is installed on a fossil fuel furnace? - Answer -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? - Answer -Motor windings could become damaged. What needs to happen in order to consider an evacuation to be complete? - Answer -System should be evacuated to a vacuum of 500 Microns or below. A system is supplied from the factory with charge for a 15 foot line set. The data plate shows the required sy

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