Jan 4, 2025 · CALEFFI Z-one Relay Multi-Zone Valve Control ZVR10X Series Hot Rod are you out there cutter Member Posts: 312 January 2025

They are of course open for the Caleffi valve to function. All these valves are full-port ball valves. Normal operation When the system starts cold the Caleffi valve directs supply water through …

Apr 3, 2025 · Learn more about Caleffi's TMVs options. Digital Mixing Valves: Precision and Performance For retrofit and new commercial projects, a big advantage of digital is the ability …

I don't like roof penetrations when I can avoid them, so that fan will be high in the rake wall and is there mostly for show.

Im using a Caleffi 535H series prv and recently ended up with some dirt / sand running through it and when I pulled it apart it had 2 chunks of sand stuck in the seat as well as sand in the …

Planning a new hydronic install off a Williamson cast iron boiler. Debating between the all in one dirt and air separator from Caleffi vs separate units from Spirovent for air and Adey …

My hydronic baseboard heating system has a Caleffi Discal for air separation (see image below). The overall system operates nicely, at 20 psi, but I am hearing significant air noise from the …

The Caleffi ZSR will be going out with removable 40 Va transformers now, same as the ZVR boxes. So you should have plenty of transformer power on board. Needs to be a relay with a …

Hi everyone! First time posting! I'm trying to understand my hydronic heating system in my brick and plaster 1930s 4-plex building located in Ohio.

Just about every manufacture has an air separator now. They all say theirs is the best. There is Spirovent, Taco, Honeywell, Caleffi, Watts just to name the popular ones. Has anyone ever …