Originally Posted by ga-hvac-tech
Hmmm... have not heard of SNAP approval yet... could you post a link?
Heh, it looks like a lot has been added since the last time I actually looked at the list, which has been a few years.
RSES Certificate Member
You're not finished learning until you're dead!
for mo99 we just recently started changing are systems to it, im new to mo99...so would you know from your experience what the typical operating pressures would be on an mo99 charged unit both low and high side pressures
MO99 pretty much runs the same temps and pressures as R22... and it will behave with mineral oil.
Not a bad REPLACEMENT... however... do NOT add it on top of 22.
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