I have a customer with a Trane TSC036A3R0A1J and a TSC060A3R0A1T. The units never had the coils split and cleaned and now the inline orifices in the feed tubes to the evaporator coil are clogged with varnish. I was sure that Trane made retrofit kits to cut the short header out at the coil and replace it with feeder tubes, distributor and TXV valve. I called my local Trane store and he said he e-mailed the factory and talked to the district tech support guy but can't get an answer out of them.
Does anyone have a part number or some help on this?