“The thermostat ports have a common for every zone instead of the single common on the older version of the Taco. Also, there's a dedicated relay for the system pump, which is a big improvement over the older version where the system pump took up a zone itself.”
“Simple connection, easy and better operations compared to the I Link (Azel), which I replaced. Works with any brand thermostat. Only fault: it's larger than the I Link.”
