HVAC- EPA 608 Certification/ Core Study Material 2023/2024

A low-pressure low-temperature superheated refrigerant enters the _____ through the _____ line. - ANSWER-compressor, suction High-pressure high-temperature superheated refrigerant leaves the _____ through the _____ line. - ANSWER-compressor, discharge The _____ rejects heat, de-superheats the refrigerant, and condenses refrigerant into a liquid. - ANSWER-condenser The _____ supplies the evaporator with a high-pressure sub-cooled liquid. - ANSWER-metering device Pressure is reduced in the metering device and causes _____ which lowers the remaining refrigerant to saturation temperature. - ANSWER-flash gas The _____ absorbs heat. - ANSWER-evaporator The _____ gauge on a manifold, also known as a compound gauge, measure both PSIG and inches of mercury vacuum. - ANSWER-blue The _____ gauge on a manifold is used to determine the high side system pressure (discharge pressure) and is also rated for 500 or 800 PSIG. - ANSWER-red The _____ hose can be connected to a vacuum pump, recovery or recycling device, or refrigerant cylinder when charging. - ANSWER-yellow This type of manifolds contains temperature probes to measure line temperature and calculate superheat and subcooling. - ANSWER-Electric gauge manifolds A _____ is required by the EPS because it minimizes refrigerant loss. - ANSWER-low loss fitting The molecule is made up of 3 oxygen atoms. - ANSWER-Ozone Ozone is a naturally occurring gas in the earth's _____. - ANSWER-stratosphere Ozone helps protect the earth from _____. - ANSWER-ultraviolet radiation _____ measures the ability of a substance to destroy ozone. - ANSWER-Ozone Depletion Potential (ODP)