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by gbl
Sat Feb 26, 2011 4:10 pm
Forum: Help and Advice
Topic: MA ND4 green Open led means damper closed????
Replies: 4
Views: 8111

MA ND4 green Open led means damper closed????

I'm wondering if my installers wired my system incorrectly. I've got 2 zones connected to an EWC ST-2D Control Panel, American Standard AUH2C100A9V4VA gas furnace. The EWC ST-2D is connected to each MA ND4 as follows: EWC-ST-2D M1..........MA ND4 M1 EWC-ST-2D M4..........MA ND4 M4 EWC-ST-2D M6.........