EWC Controls Forum

I just finished the installation of 2 of my older controllers with the new 300 ones. Everything well just fine. It took me abou5 half an hour for each. I have oil forced air heat and AC. I turned off the dial of the first limit switch; the rest of switches I left as they were set by factory. I ...

i pretty much understand the wiring issues. I just need to figure out the heating and coolong limit switches and what is that second stage heating timer.. Also the settings for the DIP switches for oil heat and A/C system. I have copied the links for the NCM300 panel and the conversion from ST 2E to ...

i would like to replace original control boards ST-2E and 2C (with master and slave thermostats with EWC NCM 300, to be able to use smart/wifi thermostats. My system is forced air oil heat and A/C. I have 2 separate zones with each zone having a master and a slave thermostat. The pictures attached ...