The guys I work with have differing opinions on pulling the refrigerant back into the condensing unit for quick repairs. This is concerning only residential split units. Not heat pumps. 2 to 5 ton units. One question is about safety. If the system has a extra long line set can it be dangerous to pull all the refrigerant back into the condensing unit? Also, in general, my opinion is that it is best to recover the refrigerant. That way you know how much was in the system to start with plus it is better with these small units to simply use new clean refrigerant. Any feedback would be appreciated. Thanks.