Basic HVACR Priciples Terms Flashcards
A(n) ________ is a heat exchanger that transfers heat from the air or liquid flowing over it to the cooler refrigerant flowing through it.
Evaporator
The movement of heat energy from a warmer substance to a cooler substance is known as ________.
Heat transfer
The mechanical device that converts low-pressure, low-temperature refrigerant vapor into high-temperature, high-pressure vapor is the ________.
Compressor
Exposure to ________ can reduce or eliminate bacteria and viruses.
Ultraviolet (UV) light
________ systems use water as a heat-transfer medium.
Hydronic
A substance harmful to your health and potentially lethal is said to be ________.
Noxious
The process that depends on machinery and phase-changing refrigerants to absorb heat from one location and transfer it to another location is called the ________.
Mechanical refrigeration cycle
A refrigerant metering device is commonly referred to as a(n) ________.
Expansion device
A(n) ________ is a heat exchanger that transfers heat from the refrigerant flowing inside it to the air or water flowing over it, enabling the change of state from a vapor to a liquid.
Condenser
Units that can produce heat by reversing the mechanical refrigeration cycle are called ________.
Heat pumps
________ describes the uncontrolled entry of outside air into a building or occupied space
Infiltration
