EPA 608 Type 3 |139 Questions and Answers 2023 Solved Correctly

On low pressure chillers, moisture typically enters the refrigerant system through - air leaks from areas with gaskets or fittings The maximum test pressure for leak testing a low pressure centrifugal is: - 10 psig Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller - ... A hydrostatic tube test kit is used to: - determine if a tube leaks Commercial and industrial process refrigeration systems must be repaired when the leak rate exceeds ____ of the charge per year. - 35% Refrigerant recovery typically start with liquid recovery it is faster. - ... A rupture disc on a recovery vessel for a low pressure refrigerants relieves at: - 15 psig According to ASHRAE Guideline 3-1996, if the pressure in a system rises from 1 mm Hg to a level above ____ during a standing vacuum test, the system should be checked for leaks. - 2.5 mm Hg The primary water source for a recovery unit condensing coil is _____. - local municipal water supply When recharging a refrigeration system with R-11, what vaporpressure is necessary in the shells before changing with liquid? - 16.9" Hg vacuum After recovering the liquid refrigerant you must: - recover the vapor refrigerantAccording to the EPA there is approximately _____ refrigerant vapor left in an average 350 ton R-11 chiller at 0 psig pressure once all the R-11 liquid has been removed. - 100 pounds Charging refrigerant liquid into a refrigeration system when it is under a 29 inch Hg vacuum can cause the: - system water to freeze A system does not have to be evacuated all the way to the required level when: - leaks in the appliance make evacuation to the prescribed level unattainable Which of the foloowing repairs would ALWAYS be considered "major" under EPA's - replacement of evaporator coil