Hvacr controls Study guides, Class notes & Summaries

Which of the following factors affects a customers level of comfort? All of the above A cooling load calculation estimates the sensible heat gain of the structure. The cooling-only system should be within _____% of this calculated value. +15% The maximum sensible cooling capacity of a heat pump should be within ______% of the calculated sensible heat gain of a structure with a large heating load. +25% The combined output of a heatpump and its auxiliary heat should not exc...

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 Air Conditioning and Heat Pump Questions With Correct Answers(Guaranteed Success) Which of the following factors affects a customers level of comfort? - correct answer...All of the above A cooling load calculation estimates the sensible heat gain of the structure. The cooling-only system should be within _____% of this calculated value. - correct answer...+15% The maximum sensible cooling capacity of a heat pump should be within ______% of the calculated sensible heat gain of a str...

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 ...

HVACR UNIT 55 Exam Questions and Correct Answers (100%) ||Graded A+ || Verified Latest 2024!!! A major difference between the operation of an oil furnace and a gas furnace is that: - The oil must be atomized before ignition. An oil furnace heat exchanger is built: - Like a drum. How are oil burner nozzles rated? - Cone shape, spray angle, and GPH Modern residential oil furnaces sense the flames using: - A cadmium sulfide cell. Sealed combustion oil furnaces use: - High static oil burners...

1. The type of circuit diagram that shows the approximate physical location of components in relation to each other is a ______ diagram. a. Boolean b. Ladder c. Pictorial d. Venn 2. The type of circuit diagram that shows the components and connections arranged in the order that they activate during circuit operation is a ______ diagram. a. Boolean b. Ladder c. Pictorial d. Venn 3. Which of the following is not one of the three main components used in an HVACR control system? a. Contro...

Which of the following factors affects a customer's level of comfort? a. Air movement b. Humidity c. Temperature d. All of the above - ANSWER-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% d. +30% - ANSWER-c (+15%) The maximum sensible cooling capacity of a heat pu...

NATE Exam: Air Conditioning and Heat Pumps correctly answered 2023Which 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% d. +30% c (+15%)...