I am adding a second zone (and zone control relay) to my boiler. I am wondering if it is safe to "piggy-back" the feed from one zone controller to the other, it'd make the wires much easier to run.
Here are a couple diagrams of the current single controller, and how I plan to piggy-back off of it to send a hot feed to my second controller. I left all the low voltage off the diagram.
I can split the feed before the controller and run a hot to each, but it would be more difficult.
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You should not have any issue however with your drawing on the second relay card the hot and netural is reversed switch that around then you are good to go.
you will have sepearted thermosat for each zone correct ??
Merci.
Marc
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The answer will be based on NEC ( National Electrical code ) or CEC ( Cananda Electrical code ) or ECF ( Electrique Code France )
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