I have radiant in-floor heat in my home, I'm using Tekmar 519 Tstats with slab sensors. I'm going to replace one of the 519's with the HWLV-HVAC and maybe over time I'll replace the rest with the TouchPro's.
I'm wondering if I can hook the slab sensor to the S1/S2 terminals on the TouchPro and get the air/slab temp averaging? Is one of the S terminals common? I can't seem to find anything specific about those terminals via the install guide or product specifications.
Here is the Tekmar 519 wiring diagram.