Replace EWC-ST-2D with NCM-300 for ecobee4: Dampers Question

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psskumar
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Joined: Fri Jan 25, 2019 8:56 am

Replace EWC-ST-2D with NCM-300 for ecobee4: Dampers Question

Post by psskumar » Fri Jan 25, 2019 9:02 am

I am planning to replace current existing EWC-ST-2D control board with NCM-300, this will help me to install ecobee4 in my home. Currently I have 2 dampers installed to handle 2 zones, these are connected with existing EWC-ST-2D. Do I need to replace these dampers when I am installing new NCM-300? Your prompt response will be highly appreciated.

Paul Z.
Posts: 204
Joined: Thu Dec 08, 2011 3:05 pm

Re: Replace EWC-ST-2D with NCM-300 for ecobee4: Dampers Question

Post by Paul Z. » Fri Jan 25, 2019 3:13 pm

No.

psskumar
Posts: 3
Joined: Fri Jan 25, 2019 8:56 am

Re: Replace EWC-ST-2D with NCM-300 for ecobee4: Dampers Question

Post by psskumar » Sun Jan 27, 2019 10:35 am

Thank you for your swift reply.
Last edited by psskumar on Sun Jan 27, 2019 7:59 pm, edited 1 time in total.

psskumar
Posts: 3
Joined: Fri Jan 25, 2019 8:56 am

Re: Replace EWC-ST-2D with NCM-300 for ecobee4: Dampers Question

Post by psskumar » Sun Jan 27, 2019 7:59 pm

My old dampers are used to work Master-Slave configuration with ST-2D Zone control. I have dampers with terminals 1,2,4 and I connected them to NCM 300 board M1, M2 and M4. But my system still works in the slave model. When Zone 1 is turned on I get the air only in Zone 1, but when I turn on Zone 2 it turns on both zones (Zone1 and 2). Please help me to resolve this issue, your prompt response is highly appreciated.

Paul Z.
Posts: 204
Joined: Thu Dec 08, 2011 3:05 pm

Re: Replace EWC-ST-2D with NCM-300 for ecobee4: Dampers Question

Post by Paul Z. » Thu Jan 31, 2019 7:45 am

Call 18004463110X490 have a few questions.

DewittPar
Posts: 1
Joined: Thu Feb 14, 2019 5:10 am

Re: Replace EWC-ST-2D with NCM-300 for ecobee4: Dampers Question

Post by DewittPar » Fri Feb 15, 2019 1:24 pm

Are you handling all support through telephone, Paul?

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