I've read a post about changing the fixed metering device on rtu's with a txv, and I like that option, but someone said that they have used a heat gun on the distruibiting tubes, due to a problem with oil, and that has taken care of the problem.
1. I've searched and can't find the thread.
2. I think they said they used the heat gun on the system when it was
operating? Some of the systems out there, that would be dificult.
Any responses would be great, thanks