I have a Nordyne A -coil Model# GC3BA-030C-B. I understand this coil is also good for 36,000 btu. when a .067 orifice is used. My condensing unit is a Goodman GCS130361A. I want to remove the orifice and put in a txv. I think Nordyne makes a txv that threads right in to where the orifice was. Does anyone know which txv model number I have to buy? The system is R-22. All help is appreciated.