Zoning Board Transformer

Old 04-18-20, 06:57 PM
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Zoning Board Transformer


Im zoning out two floors by installing an EWC zone board. The board will be powered by its own transformer. The current American Standard furnace has its own transformer already mounted. For 120V in for the new transformer, could I tap from the 120V feeding the existing transformer?

My other option is to tap 120V from inside the furnace at the emergency switch where power comes in. To tap there must I run 14/2 romex inside the furnace?
Old 04-18-20, 09:30 PM
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You can tap two 120v transformers from the same source. That would be fine.

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