I need help wireing a taco 571-2, I have 2 wires (red&white)from a tranformer, 2 wires (red&white)form the circulator relay switch, and 2 wires (red&white) from the thermastat, could you please tell me which # XXXXX they go on and which get conected together? thanks
HiCustomerbr />Here is a wiring diagramhttp://www.taco-hvac.com/uploads/FileLibrary/100-3.pdf
I already looked at that and couldn't figure it out. I have 3 different wires , thay only show 2
If you break down your wiring you will see you only have 2 wires from the thermostat, 2 wires from the transformer and 2 wires to the operating control. I'll try to explain it, you take 1 lead from the hot side of your transfromer to R on yourstat, W on your stat to 1 on zone valve head. You take the 2 terminal on head to one of the T terminals on your operating control and to the common on the transfromer. Then 3 terminal on head to the other T terminal on the operating control.
40+ years experience licensed oil & gas tech