Look at whats in EF-22a, propane. Propane is also known as R290.
Replies 7The EPA has not approved propane to be used in central cooling systems.
Replies 3The EPA has not approved propane to be used in central cooling systems.
Replies 7Probably not fully charged yet. When it gets down to 25 again, recheck charge. Whats it amp draw.
Replies 14Since your subcool is low. Are you sure you have enough gas in it. is there a sight glass on the system.
Replies 14New ones are designated as R134A. but can work with either.
Replies 14Are you sure thats not a AEA2415AAB? Which is a 1525 BTUH unit, R134A.
Replies 14While it sat temps are some what close to R22, its not a good idea to top off with it. PS: The EPA has not approved propane to be used in central cooling systems.
Replies 2This is a Pro site. So warnings to home owners/customers don't get read by them.
Replies 3Hello and Welcome.
Replies 4Brand and model number of compressor would help.
Replies 14I know of no industry standard. I know of companies that only add 45% to equipment cost. An others that do 100%. Depends on how much money they want to make. While I sell eq...
Replies 6Varies by what the company needs. Can be hard to get 70% on a $30,000.00 chiller
Replies 6Yep, version 8.
Replies 5A/CW? Not sure I ever heard of it.
Replies 10I was looking at a document from carrier the other day, and in its glossary. It listed EER as: Energy Efficiency Ratio Don't matter to me.
Replies 10The reversing valve won't cause the problem he had. Nor will the charge compensator. As he found out back in NOV 2010.
Replies 6If it had a higher compression ratio, then it would take more horse power.
Replies 14LOL... You are correct. I stand corrected. :thumbsup:
Replies 10Its in the instructions for the conversion. http://www.certifiedrefrigerant.com/r-421a_retrofit_procedurerev02.pdf
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