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    External circulation pump cable connection.

    A few days ago, I purchased a Vaillant EcoTEC Pro VUW 236/5-3 (H-INT II) gas boiler. The installation went smoothly, and a Wilo RS 25/60 circulation pump was added alongside it. However, the installer didn’t connect the wiring for the pump, and I’d prefer not to call an electrician just for a...
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