Is this a fixed orifice or is something with with a little piston inside or are those also fixed orifices?
Let me take it from the top. This goes back to about 1983. Residential R22 2.5 ton. In 1994 the compressor failed and the condensing machine was replaced due to a failed compressor. I don’t think any other changes were made.
Flash forward to present day. It still runs, still cools, but weekly. Enough to produce condensate but typically just a 12-15° drop. Pressure has been checked. It’s a Copeland recip. Prob just very worn out.
I know I should replace the whole caboodle for max efficiency but I just got a great deal on a 3 ton R22 brand new old stock (2009) condenser.
The plan was to get a tech to recover, hook it up, pull a vacuum, open her up, and top off as needed. I have a filter/dryer for them to add. It’s a Carrier with a Copeland scroll. But it says not to use it with cap tube or fix orifice. If that’s what I have, would it damage my new toy? Should I have a TXV added? If so I’d kinda like to get it myself so they only need to braze it in. What’s the crucial factor? R22 & 2.5 or 3 ton? Not sure of the evap model but it’s so old I doubt it appears in any table. Yes, I know this might be a kluge at best.