Nate ice heat pump exam Study guides, Class notes & Summaries

HVAC NATE Heat Pump Exam Questions with all solutions complete On an R-22 system, line diameters and lengths are typically specified for a vapor pressure drop that does not exceed what? What is the primary purpose of using flux when soldering copper or brass parts? The water that results from a defrost cycle of an air to air heat pump(runoff) must?. Why must the runoff be drained off and away from the outdoor coil? What is the component that reduces sound transmission and prevents wa...

HVAC NATE Heat Pump Exam Questions with 100% Correct Answers 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 outdoo...

NATE Heat Pump Exam 2024 Questions with 100% Correct Answers R-22 vapor line diameters and lengths are typically specified for a vapor pressure drop that does not exceed... 6-7 psi or 6°F The primary purpose of using flux when soldering copper or brass parts is to... 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 to... Prevent excessive ice can build up on the bottom of the coil and r...

NATE Heat Pump Exam 2024 Questions with 100% Correct Answers R-22 vapor line diameters and lengths are typically specified for a vapor pressure drop that does not exceed 6-7 psi or 6 degress F The primary purpose of using flux when soldering copper or brass parts is to 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 to prevent Excessive ice build up The component used to reduce sou...

NATE ICE Heat Pump Exam Questions with 100% Correct Answers A correct statement regarding the outdoor coil of a heat pump is that damage may result if the: defrost water does not drain from the coil. A dirty air filter in a heat pump operating in the heating mode could result in: excessive head pressure. A dirty air filter on a heat pump system will result in: high head pressure in the heat mode and low suction pressure in the cool mode. A fan delay can add cooling efficiency ...

NATE ICE Heat Pump Exam Questions with 100% Correct Answers What is the purpose of the reversing valve on a air to air heat pump? A. it reverses the direction of the compressor B. it changes the flow of refrigerant, making the outdoor coil the condenser during the winter months C. it changes the flow of refrigerant, making the indoor coil the condenser during the winter months D. it changes the flow of refrigerant, making the indoor coil the condenser during the summer months C. it chang...

NATE Heat Pump Exam, questions with complete solutions Charging a heat pump with refrigerant is best accomplished in the _______ mode. A: Heating mode B: Cooling mode C: Defrost mode D: Emergency heating mode B: Cooling mode Heat pumps can provide both heating in the winter and cooling in the summer. In which mode is the heat pump more efficient? A: Heating mode B: Cooling mode C: Defrost mode D: Emergency heating mode A: Heating mode Which of the followi...

NATE Exam: Air Conditioning and Heat Pumps, questions with complete top solutions Which of the following factors affects a customer's level of comfort? a. Air movement b. Humidity c. Temperature d. All of the above d (All of the above: air movement, humidity, temperature) A cooling load calculation estimates the sensible heat gain of a structure. The maximum sensible capacity of a cooling-only system should be within ____% of this calculated value. a. ±10% b. +10% c. +15% ...

NATE Final Exam #2, question and answers with rated solutions A condensing unit should be mounted on a slab that is level to: A: Allow any accumulated water to evenly run out of the cabinet B: Increase airflow through the fin area C: Prevent the unit from tipping over D: Make certain any top discharge air blows straight up A A simple time-activated switch is an example of a control that does not use: A: Feedback B: Electronics C: Calibration D: Manual adjustment ...