Dometic roof top ac

About 16 oz. If you can still read it, the data plate will also tell you. (Freon 22) Doug

Found my old manual 16.0 to 16.5 oz

dougrainer wrote:
About 16 oz. If you can still read it, the data plate will also tell you. (Freon 22) Doug

Found my old manual 16.0 to 16.5 oz

Ok thanks nothing left on anything inside unit

mike brez wrote:

dougrainer wrote:
About 16 oz. If you can still read it, the data plate will also tell you. (Freon 22) Doug

Found my old manual 16.0 to 16.5 oz

Ok thanks nothing left on anything inside unit

Going to need a port installed as well

There is no usable charge port so how much is in there is likely a moot point.

You can silver solder on charge ports. Getting you hands on 1 pound of R-22 will be the hard part.

Allready has a port on low side

STBRetired wrote:
You can silver solder on charge ports. Getting you hands on 1 pound of R-22 will be the hard part.

Looks like flea bay has some 15oz cans for around $50 also some 35oz cans
I'm going to call my buddy up when he gets back from vacation. He owns a small ac company and I'm shure he has a big 20er

mike brez wrote:
Allready has a port on low side

soldered or a clamp on tap? Doug

It looks to be silver soldered,brazed.
Should it be evacuated?
I had my commercial ice machine re charged last year and they dumped whatever was in it and put new in without evacuating.
The tag on ice machine says to use only r502 not shure what's in it now.

I would, evacuation also tests for leaks, if vacuum holds you might as well add new refrigerant. If it doesn't hold vacuum, would be a waste to add any, there's a leak.