EPA 608 Practice exam Type 3| 50 Questions | Correct 100%

The maximum test pressure for leak testing a low-pressure centrifugal chiller is - ANSWER 10 psig Excessive operation of a purge system means - ANSWER The system has a leak on the sub-ambient pressure side of the system For a commercial refrigeration system with a charge of 50 pounds or more refrigerant, a substantial (or threshold) week rate will be reduced to ________ after January 1, 2019. - ANSWER 20% For a comfort cooling system with a charge of 50 pounds or more of refrigerant, a substantial (or threshold) Leak rate will be reduced to _________ after January 1, 2019. - ANSWER 10% According to the EPA, when all the R-123 liquid has been removed from an average 350 ton R-123 chiller and the system vapor pressure is 0 psig, the system contains - ANSWER 100 pounds of refrigerant in the system When working with low pressure systems, the high-pressure cut off should be set to no more than _________ to avoid damaging the system or activating