Search found 3 matches

by Closedguard10
Mon Jan 24, 2022 1:21 pm
Forum: Help and Advice
Topic: EWC ST-3E to EWC NCM-300 Wiring?
Replies: 5
Views: 2955

Re: EWC ST-3E to EWC NCM-300 Wiring?

Thank you for the reply. We actually already have common wires to the thermostat. So I'm assuming in this situation we could completely illuminate the O and B?
by Closedguard10
Mon Jan 24, 2022 12:38 pm
Forum: Help and Advice
Topic: EWC ST-3E to EWC NCM-300 Wiring?
Replies: 5
Views: 2955

Re: EWC ST-3E to EWC NCM-300 Wiring?

I am looking to do the same, what did you end up doing with the B/O?
by Closedguard10
Mon Jan 24, 2022 12:36 pm
Forum: Help and Advice
Topic: ST-2E to NCM-300 plus nest t-stat
Replies: 0
Views: 6895

ST-2E to NCM-300 plus nest t-stat

Hello all, as thread title states I am looking to convert a ST-2E to a NCM-300 so I can install a Nest thermostat. The system is a 2-zone, forced hot air, natural gas system with AC. The panels look pretty identical, aside from the supply air sensor. Either way, I was curious what I would do with th...