Covert DX coil from R22 to R410A?
Covert DX coil from R22 to R410A?
(OP)
What are the issues with using R410A in a coil originally designed for R22?
My specific application is a 2 circuit 15 ton (2 7-1/2 ton) air handling unit coil.
My specific application is a 2 circuit 15 ton (2 7-1/2 ton) air handling unit coil.





RE: Covert DX coil from R22 to R410A?
RE: Covert DX coil from R22 to R410A?
RE: Covert DX coil from R22 to R410A?
RE: Covert DX coil from R22 to R410A?
I've done retrofits from R22 to r407c, which essentially just requires a good flushing of the oil. However, 22 and 410A are not compatible at all with the operating pressures. You really need a whole new system.
RE: Covert DX coil from R22 to R410A?
B.E.
You are judged not by what you know, but by what you can do.
RE: Covert DX coil from R22 to R410A?
Do the expansion valves need to be replaced.
No idea on rating of the existing coil. What is the low side pressure for R-410a?
RE: Covert DX coil from R22 to R410A?
RE: Covert DX coil from R22 to R410A?