EPA 608 Type 3 questions with correct answers

On low pressure chillers, moisture typically enters the refrigerant system through - Answer air leaks from areas with gaskets or fittings The maximum test pressure for leak testing a low pressure centrifugal is: - Answer 10 psig Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller - Answer ... A hydrostatic tube test kit is used to: - Answer determine if a tube leaks Commercial and industrial process refrigeration systems must be repaired when the leak rate exceeds ____ of the charge per year. - Answer 35% Refrigerant recovery typically start with liquid recovery it is faster. - Answer ... A rupture disc on a recovery vessel for a low pressure refrigerants relieves at: - Answer 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. - Answer 2.5 mm Hg The primary water source for a recovery unit condensing coil is _____. - Answer local municipal water supply When recharging a refrigeration syste