How do I wire a new FHW zone
I have a gas fired, forced hot water heating system with 3 zones. The zones are controlled by a TACO switching relay (SR506). I would like to add a 4th zone. That is relatively simple. I can add the circulating pump, etc. and can easily connect the new thermostat. But I do not want a thermostat on the new zone.
:confused: My question is on wiring.:confused:
I would like to have the 4th zone activated when any of the other 3 zones call for heat. In other words, if zone 1 calls for heat, zones 1 & 4 will run. If zone 2 calls for heat, zones 2 & 4 will run, etc.
Does anyone know how I can wire the thermostats and/or circulating pumps to get the reults I am looking for.
Thanks.