Just wondering how your guys experience is with some conversions.
We will be swapping some medium temp conventional r22 systems onto a new zero zone protocol type system running 407a. 6 scrolls one with an unloader.
Just wondering what I should be geAring up for? Just reading another thread on an oil conversion, seeing now we will be using POE in the new unit and there will be likely some residual mineral oil throughout the piping and systems, should I be thinking about some oil changes in the near future?
Also it's been a while on setting up low pressure controls on a multi compressor rack , what should my cut in and cut outs look like?
Thanks in advance.