Epa 608 Certification, Epa 608 Study Guide Rated A+

15% {Ans: Comfort cooling appliances containing more than 50 lbs of refrigerant must be repaired when the annual leak rate exceeds _____%}Controlled hot water or heater blankets. {Ans: The most efficient method of leak checking a charged low-pressure system is to use?}Trapping liquid refrigerant between the service valves. {Ans: After completing the transfer of liquid refrigerant between a recovery unit and a refrigeration system, you should guard against what?}45 psia and 170 psia {Ans: Medium-pressure appliances use a refrigerant with a liquid phase saturation pressure between _____ at 104°F:}An appliance that uses a refrigerant with a critical temperature below 104°F or with a liquid phase saturation pressure above 355 psia at 104°F. This definition includes but is not limited to appliances using R-13 or R-503. Very high-pressure refrigerants include R-13, R-23, and R-503. {Ans: Very high-pressure appliance}Commonly known as HCFC's, they are a group of man-made compunds containing hydrogen, chlorine, fluorine, and carbon. {Ans: What are HydroChloroFluoroCarbons?}