NATE Exam: Air Conditioning and Heat Pumps Exam Questions with complete solutions

NATE Exam: Air Conditioning and Heat Pumps Exam Questions with complete solutions Which of the following factors affects a customer's level of comfort? 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. 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. The combined output of a heat pump and its auxiliary heat should not exceed the calculated heat loss of a home by more than ____%. What amount of auxiliary electric heat is needed when the output of a heat pump on a design day equals 18,800 Btuh and the heat loss of a home is 29,700 Btuh? The three processes that transfer heat energy are conduction, convection, and ____. Heat transfer that occurs when substances of different temperatures are in contact with each other is called ____. What effect does raising the pressure in a sealed system have on refrigerant?