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0 inches of vacuum - (answer)A high-pressure appliance containing less than 200 lbs. of an HCFC or HFC
refrigerant must be evacuated (recovered) to a level of;
0 inches of Mercury - (answer)When using a recovery unit on a system containing 100 lbs. of R-410A it
must be evacuated to;
It remains in the vapor state. - (answer)What happens to a refrigerant that is above the saturation
temperature?
Compressor - (answer)EPA regulations state that removal of which component constitutes a "major
repair"?
EPA approved laboratory - (answer)Proper recovery techniques begin with the use of appropriate
recovery equipment that has been certified by;
A new split system should be checked for leaks by - (answer)pressurizing the system with a few ounces
of system refrigerant and an inert gas
A1 - (answer)Refrigerants CFC-12, HCFC-22, and HFC-134a are all classified as Type _______ substances.
When dehydrating a system, it should be evacuated to a minimum level of; - (answer)500 Microns
What can be done with a refrigerant trace gas and nitrogen mixture after a system leak is found? -
(answer)Release to the atmosphere.
A refrigerant sensor which will sound an alarm and automatically start a ventilation system in occupied
equipment rooms falls under ASHRAE Standard; - (answer)15
15" Hg - (answer)When recovering refrigerant from a medium-pressure system with more than 200 lbs.
of refrigerant, recover to a level of;