I currently have a ST-2E with 2 zones & 2 thermostats. I have a propane fired hot air furnace and a single central air unit. I would like to upgrade my thermostats to smart units which, as I understand it, will require a controller update from ST-2E to NCM-3z.
What should I be comcerned about on the zone dampers and HVAC system side for compatibility? My furnace is only 4 years old but the rest of the system is about 23 years old.
Upgrading from ST-2E to NCM-3z
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Barsenault
- Posts: 2
- Joined: Sat Oct 23, 2010 9:03 am
Re: Upgrading from ST-2E to NCM-3z
As a follow-up I completed my upgrade from ST-2D to the NCM-3Z control board. The swap over was relatively easy and as described in this post.