Unwired Installation Setup for Vaillant Elobock
Hi,
can someone please tell me where to connect the power supply of the relay? 
Hi,
can someone please tell me where to connect the power supply of the relay? 
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You‘ll have to add it to the power supply of the boiler (not pictured).
Look for something labeled „230V L N PE“ or similar.
The black/grey wires of the Relais go to the terminals marked as „2“ (RT24, GND), polarity doesn‘t matter.
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