Hello TiberQ! I appreciate all you said but I really don't want to spend too much time replying to it as that specific situation was resolved as said in this thread previously and new things are going on also with this overall situation.
As for some former posts u made, 6k Dollar is way 2mutch.
I would recommend replacing parts (if needed) and patching up the air-conditioner u have.
It really wasn't too much, it was on the lower end of estimates for replacing a roof top packaged air conditioner unit. At least for companies who had good reviews. And repairing it wasn't practical at all.
ll first describe the part where there are no leaks in the system followed later for when there are leaks;
Assuming there are no leaking holes in your system, use a replacement coolant for your system.
To test if u got the right stuff; tap a little bit out of the system and into a cheap small bowl,
go outside and ad a little new replacement coolant into the bowl.
If no bubbling flashing hissing or whatever happens, they are more than compatible,
and thus u don't need to drain your system and replace it... u can simply add the new ''replacement'' coolant.
Some people would advice against this, but that is why u test whit just a little bit, and also this happens all
the time everywhere, including your car during service or even factory's where there is a lot more than
just heat-exchangers and air-conditioners.
It was leaking coolant very slowly, water was also getting into areas it didn't belong, and several air conditioner outfits I called said they did not have the anachronistic r22 freon on hand. Were they telling the truth? I'll never know.
Ignore commercial talk like; only replace x form brand x, whit x from brand x.
This is litteral commercial talk. This is also the reason some would almost always fall for this salesman's pitch,
out of stupidity or fear... probably both.
Example... GM motors would always advice GM motors ....would it not? This goes for all commercial talks / commercials.
That being sad, dont skip the testing part, there are incompatibility's around, altho for non-industrial stuff most unlikely.
That goes without saying friend. Though I appreciate the sentiment.
U have a 1990's system? here is a link for replacement coolants usually found in your local DIY hardware store:
https://www.ctc-n.org/technologies/shift-coolants-and-refrigerants-lower-gwp
Sometimes it even says on the bottle for what time''era the replacement coolant is.
In the United States, you cannot get coolants without certifications. And for old style coolants you need a cert to even reclaim it from units being removed to then be repurposed to refurbishing other old ones.
If all this information is 2 mutch ->
The savvy tech guy at your local DIY store should know what u need. Describe the situation and item + (sub)items to be repaired / take alot of pictures
It isn't too much, it just isn't *useful* nor any longer *relevant* information. Though I appreciate the sentiment. I am a handyman myself, so I know a bit about everything and once upon a time did some construction / general contracting / plumbing.
All in all,
This information should set u up to deal whit this yourself, for a lot cheaper,
and thus, i will consider this my contribution to u ^^
Again I appreciate it, but it no longer matters as the unit was replaced as said previously in this thread. Repairing it would have been a Bad Idea. A unit older than most people in this community (and more than twice the average life span of these things), with discontinued coolant, with a compressor on the fritz, with a slow leak somewhere in the closed loop, fan bearings starting to go bad, and with severe rust on the outer steel casing? Would cost more than half the cost of a new unit to repair. And considering all factors? Just would not be a particularly good idea. Those outfits were truthful in telling me to just replace it, I already knew that really, and is hard to pull one over on me lol.
And yea anyways, new stuff is going on now