“This single-zone relay is exactly what was needed to install a WiFi thermostat to my hydronic radiant floor. Previously the radiant floor ran off a timer, but now this interface with WiFi lets me see and control the temperature of my basement from my cellphone, wherever I go. Yup that's what it did and it destroyed my indirect hot water tank. I just had to replace my indirect hot water tank because the priority DHW zone would not cut off once the priority was satisfied. I was wondering wtf would cause the top of the indirect water tank to rupture but initially chalked it up to a nearly 15 year old water tank. Nope - once the new tank was installed and everything else was checked out/maintained/replaced we had the same exact problem the priority DHW zone circulator pump stayed on rather than cut off when the priority was satisfied (all that pressure that had the old Tank's relief valve singing now makes sense too). That's when we realized that this unit actually caused the issue”
“Previously my heating system had 3 single zone relays which made for unattractive, difficult to maintain wiring. This unit allowed for a neater installation with the ability to add future zones by dividing one large existing zone. The ability to use PowerPort cards, and add additional slave relays makes this an all-in-one solution for any multi-zone heating system.”
