EPA 608 Type 3 Correct Questions & 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 system with R-11, what vaporpressure is necessary in the shells before changing with liquid? - ANSWER 16.9" Hg vacuum After recovering the liquid refrigerant you must: - ANS