I have a 2-zone gas fired warm air heater with a/c that uses a model EWC-ST-2E for the primary control. I want to install Honeywell RTH 9580 wifi thermostats for both zones. I have already purchased the MCS-DXB remote selector switch, but want to make sure I wire everything correctly. If I understand this correctly, I would connect the MCS-DXB to the R1, O, B and G terminals on the control leaving the R, RC/O RH/B and G wires disconnected from the Main thermostat (do I just cap them and leave them disconnected?).. I would then wire the C, W, Y and R terminals from both t’stats to the control for both zones one and two. Is this correct? Am I missing something?
Thanks,
Nick C
Honeywell WiFi Thermostat with MCS-DXB contol
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Re: Honeywell WiFi Thermostat with MCS-DXB contol
You are correct both thermostats will be connected to r, y and w the mcs-dxb will be wired to r1, o, b and g.
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- Posts: 3
- Joined: Fri Mar 28, 2014 3:18 pm
Re: Honeywell WiFi Thermostat with MCS-DXB contol
Just so you know - everything wired up correctly and working fine!
the Honeywell T'stat works well, but the back plate is very cheaply made and parts of it broke while installing. I got it to work, but it isn't right. I've installed a LOT of thermostats over the years and have never seen such an expensive thermostat so cheaply made.
the Honeywell T'stat works well, but the back plate is very cheaply made and parts of it broke while installing. I got it to work, but it isn't right. I've installed a LOT of thermostats over the years and have never seen such an expensive thermostat so cheaply made.
Re: Honeywell WiFi Thermostat with MCS-DXB contol
Thanks. I will go with the BMPlus 3000 since it is a two stage unit. Any special wiring issues?
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- Posts: 3
- Joined: Fri Mar 28, 2014 3:18 pm
Re: Honeywell WiFi Thermostat with MCS-DXB contol
I just made the change-over from AC to heat. Everything went according to plan! ![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)
Re: Honeywell WiFi Thermostat with MCS-DXB contol
You will wire R on the board to Rc/Rh ( they might be jumped already) at thermostat, Y to Y. W to W. G gets wired to the thermostat G to G at the board.