I am getting conflicting information and hoping that someone could clarify:
In order to get a utility rebate for my new ductless, mini-split air/air heat exchanger (cooling and heating), the utility requires that the installer indicate on a form that a "TXV or EXV" was installed.
However my installer tells me that this question can't apply to such systems, as they arrived fully manufactured with all required parts in place to work as specified in its ratings. According to him, if such systems required a TXV or EXV it would arrive with one in the unit already, and if they don't require it, it wouldn't, and he would have know way of knowing which it is. He says that if one were installed after the OEM, it would have to be done somewhere in the guts of the unit, and getting in there to install one would probably void the warranty.
So if someone could confirm or provide more information I would appreciate it. Should I find an installer who knows that a minisplit would perform better with a TXV or EXV and be willing to install one, or tell the utility that the rules of their rebate program don't make sense?