Control a 3-wire zone valve with a 2-wire thermostat | Geek(Wisdom - We include wiring diagrams and installation instructions for maximum area valve version and multi-region controllers, and we describe special wiring issues which can occur in case you blend different sorts, brands, or models of heating quarter valves at the identical hydronic heating (hot water heating) device. Nicely stressed out, the individual thermostat calls for heat, the region valve opens, whilst the valve is absolutely open an quit transfer within the valve connects a second pair of wires that activate the circulator pump lower back on the boiler. To manipulate up to eight heating zones you would possibly wire more than one standard switching relays together as shown on this taco wiring diagram. This illustration is from the taco sr503-four switching relay instruction sheet whose link is given above. [Click to enlarge any image].
After i got into that trouble years ago i used to be wiring up a honeywell area valve to a machine already using aptitude area valves. I called my heating supplier who had dave ferris (now retired) on deck to answer wiring questions. My unsightly hard caricature above on thi spage desires to be re-drawn smartly, however there i show how we efficiently stressed-up a mixed emblem quarter valve set up. I had honeywell sector valves and one white rogers area valve. [Click to enlarge any image]. On maximum u.S. Structures the circulator runs sending water via the open region loops and a number one manipulate at the boiler, monitoring water temperature, absolutely turns the boiler on or off as needed to re-warmth the water. Similarly on your control, the honeywell l6006c 1010, honeywell's l8124a,c and 8151a are triple aquastats similar in characteristic, regularly used to control area valves. In which you can run into hassle is with an installation that has a mix of different brands of zone valves. In that case, the wiring instructions for one business enterprise can be unique from the other.
Some years back i transformed approximately 1/four-1/3 or my house into hydronic radiant floor heat jogging off identical area because the baseboard. The guy who sweated the tubes and zoned it out has in no way come lower back to hook up the quarter controller.