You can check out your TRANE choices he
http://www.trane.com/Residential/Products/Coils.aspx

I'm not a TRANE distributor, but most manufacturer's provide a TXV [Thermal
ExpansionValve] kit to modify the coil if it doesn't have one.

Ask your contractor. It's best to have a experienced HVACR tech install an
service it properly at startup.

--
Zyp
"John" wrote in message ...
Am replacing furnace with a high efficency American
Standard/Trane furnace, AUY080. The contractor suggested
replacing the evaporator A/C coil while the duct work is being
done inside, and we do plan to replace the outdoor a/c unit soon
(like in the spring).

Question: Does a Trane/A-S coil TXC036C4HPC0 coil have a thermal
expansion valve? If it doesn't (as I suspect) could one be added
-- if that will help the a/c system? Also, what Trane or A/S
outdoor unit would be best suited for this coil?

Thanks!