WebEach thermostat is regulating its own zone connected to the Taco SR503 3-zone switching relay. This Maine house was built in the 1930s and the wiring shows some real "yankee ingenuity." The first floor has a 3 wire going up but was only using two of them to connect to a mercury-driven Honeywell "dumb" thermostat. WebNov 23, 2024 · I believe the Taco has a 40VA transformer (the 2 zone version only has 15VA). The specs state that an active zone needs 4VA. Each smart thermostat needs 3-5VA. So 4 zones = 4* (4+5)=36 and you should be fine. You must log in or register to reply here. Similar threads D Taco ZVC406 and Intellicon HW+ DoctorEd Feb 14, 2024 HVAC Heating …
thermostat - Taco zone controller - blinking yellow light? - Home ...
WebJan 21, 2024 · I have a boiler with hot water for radiant floors.There is a Taco SR 502 controller, and 5 Honeywell zone control valves. Each zone control valve has a separate … WebIt was wired up fine and working for a single zone. I added (2) 4 wire zone valves in. So I now have 2 zones, a Taco zone valve controller (zvc-403), and two ecobee thermostats. And I have no idea how to wire it up. I watched a video that … inheritress\\u0027s 75
thermostat c wire - I am installing a Honeywell RTH6580WF with a …
WebFeb 7, 2024 · 1 I have a Taco ZVC406 zone controller. This is the type which takes signals from multiple thermostats and uses relays to switch on the heating loop pump. I am using a Honeywell CT87K thermostat on one zone. Hooking it up resulted in the yellow signal light for that zone persistently blinking yellow when there is NO call for heat. WebHome Programmable Thermostats; Home Nonprogrammable Thermostats; Industrial & Scientific; Automotive Replacement Engine Cooling & Climate Control; Automotive … WebSomewhere between the Taco board and the thermostat: (a) thin red -> thick black, (b) thin white -> thick white, (c) thin green -> unknown. The ecobee requires three wires. The third wire is the Common wire which will power the ecobee. You will use the unused green wire as the Common wire. mlb schedule postseason 2022