Someone posted pictures of a retrofit they did probably a year ago, I have searched it and can not find it. Anyway I have a 7.5 ton Trane rtu that has a stopped up orifice header. I have ordered a new header 6 weeks ago and cant seem to get one in, but thats another story. I was thinking about putting a txv on it but wasnt exactly sure how to do it. The part I am not sure about is after the txv what size tubes go to the evaporator coil and how do you tie them in to the txv. This is a small rtu with one circuit and about 8 orifices on the header. The unit is not used in june or july it is on a school but I have to get this fixed before school starts back. If anyone has done this before or can find that old post I would appreciate the help.
Thanks in advance