Refrigerant has been recovered from an air-conditioning system and held in a refillable cylinder, in order to replace the condenser coil. The refrigerant;

A company uses a chiller that diverts 55% of its cooling capacity to one of its manufacturing lines and 45% of it’s cooling capacity to air condition the office spaces. Which leak rate category would this chiller be in?

what will back-seating a suction shutoff valve close?

To determine if the system is leaking more than the allowable rate, the EPA allows the use of which one of the following methods to determine the full charge?

Which of the following always falls under the EPA definition for “major maintenance, service, or repair?”

Which of the following actions would always be considered “major” under EPA’s regulations?

which of the following is a true statement regarding a refrigerant that can be used as a direct service ‘drop-in’ substitute for R-22

What is the approximate pressure of a storage cylinder of recovered R-134a that does not contain any non-condensable impurities and is stored in a room where the temperature is 80 F?

It is best practice to use dry nitrogen to break the vacuum when dehydrating by the triple evacuate method. However, it;

Which of the following is NOT required for an appliance that is using an ozone-depleting refrigerant to be mothballed (thereby extending the leak repair deadline)?