My Zone Control Panel was fried so I am looking for a new ZC System. I've been getting recommendations from local AC cos and they all seem to recommend Honeywell EMM-3U or TZ-4 w/T8000s. I went to the Honeywell site and all of these are obsolete per Honeywell.
My question to the professionals is should I even consider using an obsolete (per honeywell maybe not in the industry) Zone Control Panel. The reason I'm switching is RobertShaw is obsolete so why would I get an obsolete Honeywell.
What I am hearing is if I go w/TZ-4 I have to replace all the thermostats w/T8000s although I read on this site that maybe I just put an T8000 on zone 1 and just have 1 heat/1 cool thermostats in the other 3zones.
w/the EMM-3U , I hear that I just need to replace the board and it will work w/my Robertshaw thermostats.
Or should I look for the HZ-432?
Honestly, they all look pretty similar.
I've got a Bryant 5ton Heat Pump w/dual speeds w/4 zones ...I'll be adding a 5th zone and replacing the AC early next year w/a 450ft addition to my current 3150 sq ft home.