Identify This Part

tbone4628

Help. I believe this is the thermostat for an in slab electric heat system. I'd like to know some more about it. Like what the Settings (A, B,C, etc) mean, what I should set it to for season or temperature. Would like a data sheet or even better a recommendation for a more modern replacement that uses room temp and slab temp. Any recommendations appreciated.

Alan (California Radiant) Forbes

Here is something that looks like it; rebranded, but with the same operating instructions?

https://www.ebay.com/itm/335002361124?chn=ps&mkevt=1&mkcid=28&srsltid=AfmBOopsjZx_tMRGiVXqrHs7Dqk0Ft8Mk4hf8BRI53sD1MNP0H49iB-HgQo

And you might find something on the Penn website.

https://www.penncontrols.com/resources/technical-literature

Steamhead

@tbone4628 , what is this unit connected to? Heating elements? Circulator pump?

dko

Couldn't find the manual, but some old ads with some feature explanations