W for water and V for vapor were two codes I forgot to list.
3CVxxxx would be vapor, and someone else pointed out water.
By the way, check the actual ratings and descriptions listed because
at times things are not what you might assume. For example, the
3CX2500F3 uses the 4000 watt rated cooler from the 3CX3000 series.
73, Tom W8JI
[email protected]