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by stephenmurcko1954
Mon Dec 04, 2023 1:43 pm
Forum: Help and Advice
Topic: Last check for EWC-ST-3E conversion to NWM300
Replies: 2
Views: 9658

Last check for EWC-ST-3E conversion to NWM300

Layman switching from EWC-ST-3E to NWM300 so I can use Ecobee thermostats. Single stage heating (gas) and cooling. 3 Zones. Have read the swapping instructions and dabbled in the Tech Bulletin. 1. In the picture of the transformer and system blocks, would I take these as-is? The red/white wire in ...