Time For An HVAC Quiz

hvaclover

The oil does not evaporate. It degases.

beecoolinc

Even Even A!

forster

I am inclined to agree with NickTech, since he does actually back up his answer with a source.

Does it count as cheating on the quiz when I look at other people's answers?

__________________
Houston Air Conditioning, Commercial HVAC and Sheet Metal

beenthere

I think you'll find that is not a regulation.
But a recomendation.

cralx2k

“Evacuate
the system to below 200 microns.” This should not
be considered. Note that the word “system” is used
here, because it is possible to evacuate piping or
some component other than the compressor to below
this level. Refrigeration oil has a vapor pressure and,
by going below 200 microns, you will degas particles
of the refrigeration oil. Be aware that if you change
the makeup of the oil, it will no longer be a true
lubricating oil.

Source - jbind.com/tools/userfiles/file/Deep_Vacuum.pdf

beenthere

Check the original cpyright date on that article, or the sourse for that article.

hvaclover

go to the principal's office. You peeked at the test answers on my desk