The current diverter valve in our system is a Honeywell, probably dating from the late 70s. It's possible the model number is 8050 as that is what is stamped on the inside of the metal cover. Can't find anything about it on the net, so if I just buy a modern 2 port Honeywell Diverter valve, will it function/be wired up the same? Any help appreciated. Thanks.