My air unit on my fifth wheel lost freon over the winter months two years ago and I had an air man come out and look at it. He put or installed a fill spot whereby we could put 134A in our unit. It has been two years and it is starting to blow less cool air. He had told us it was a very small leak and might not need to add 134A for three or four years. We are out in a rural area and I had bought a filler tube of 134A for the air in my truck. The tube has a gage on it and my truck took nothing when I went to put some in. My question (sorry for being so long winded} is can I put the 134A in my fifth wheel air unit? It has the same fitting as on the truck. Is ist safe for me to do it?
97 F250 Powerstroke Diesel John Wood towmaster tranny 1998 Prowler 34 5Y Toy Poodle "Jasmine"
I don't know the answer to your question but it has always been my experience with any type of refrigation that you needed a set of guages to hook between the ac and gas source to get the correct pressure in the system. I think I would take it to a dealer and let them check it out especially if there is a slow leak. Just might be they could fix the leak. Probably no help but just my 2 cents.
2007 Chevy 2500HDCC D/A SWB
2006 Outback Sydney 28FRLS
I have never heard of a 5th wheel/TT rooftop unit that took R134A. To my knowledge they all have and still do use R22. The fact that the service person installed a "tap valve" and added 134A doesn't sound too good.
Please don't take this the wrong way, but if you are asking, you shouldn't be trying to do this. A R22 system uses very different pressures (higher) than a 134A system, the refrigerants are not compatable. This can be dangerous.
A 10 year old unit that is leaking is probably a good candidate for replacement.
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