I am having a new condenser and coil installed. The local HVAC company has decided on a 3 ton Trane (2TTR036) condenser with a 3.5 ton Trane (THX041) coil.
I have read about TXV metering devices being more efficient but he said with the coil being larger than the condenser a piston will be fine since there will never be too much R-22 to the coil. A TXV would never close, he said. Is he right??