Ok, the outdoor unit has about 30 pipes in that radiator , so the total length will be pretty big so I think I sould buy Cu tube of the same dimension as the unit already have and make a nice shell and tube design...at first I was thinking to use tube smaller in diameter so I have a better heat transfer but I don t think I can do it as it will mean that I ll use a lot of meter ...
Prices of Cu tubes around here:
http://frigmania.ro/index.php?route=...h=64_65_91_139
The shared PDF files folder just became bigger
https://www.dropbox.com/sh/3owy0iq7o...jQSVmrC-a?dl=0