EWC Controls Forum

Erik, I have done some reading, and I found out how to install that MCX-DXB switch to work with my EWC ST 2E panel. One more question: Since this switch is taking over the master "function", that is to say that the MCX-DXB will now control the [cool/off/heat] and the [on/auto] functions, the two ...

Erik, Thanks for the swift reply. I heard about this switch from a previous post. Is this the switch to which you refer? - http://www.ewccontrols.com/acrobat/090375a0222.pdf If so, is there somewhere I can go/see the instructions or guide to learn how it is wired to the EWC ST 2E? Or can I reach out ...

Hello Erik, I have an EWC ST 2E ultra zone control panel. It provides master/slave control to two separate (very old, mercury controlled) Honeywell thermostats (zone 1 and zone 2). I want to replace the old thermostats with new ones - nest 2.0 learning thermostats. I replaced the master (including a ...