https://community.bosch-smarthome.com/t5/einstieg-und-erste-schritte/raumthermostat-ii-230v-installation/m-p/39282#M1191 <P>Yes, just like in the schematic. Black to NO. And COM needs to be bridged to L.</P> Mon, 24 Jul 2023 11:33:02 GMT Maurice 2023-07-24T11:33:02Z https://community.bosch-smarthome.com/t5/einstieg-und-erste-schritte/raumthermostat-ii-230v-installation/m-p/39275#M1190 <P>Dear Community,<BR /><BR />I currently have a underfloor heating 230V and I am in the process of installing the Bosch Raumthermostat 230V.&nbsp;</P><P>&nbsp;</P><P>The existing uponor product has the following wiring.<BR />N = Neutral (blue)<BR />L = Leiter (Brown)<BR />Black on a heating icon<BR /><BR />How do I connect these to the Bosch device?<BR /><BR />The wires 'L' and 'N' is clear. where does the black one go? To 'NO' on the bosch device?<BR /><BR />Thank you.<BR />&nbsp;<SPAN>&nbsp;</SPAN><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Bosch 1.png" style="width: 227px;"><img src="https://community.bosch-smarthome.com/t5/image/serverpage/image-id/6110i0FF852A1509FD798/image-size/medium?v=v2&amp;px=400" role="button" title="Bosch 1.png" alt="Bosch 1.png" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Uponor 1.jpg" style="width: 275px;"><img src="https://community.bosch-smarthome.com/t5/image/serverpage/image-id/6111i2E34FF95B62C378B/image-size/medium?v=v2&amp;px=400" role="button" title="Uponor 1.jpg" alt="Uponor 1.jpg" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Uponor 2.jpg" style="width: 300px;"><img src="https://community.bosch-smarthome.com/t5/image/serverpage/image-id/6112iF7523CEE8FFDDF7E/image-size/medium?v=v2&amp;px=400" role="button" title="Uponor 2.jpg" alt="Uponor 2.jpg" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Uponor 3.jpg" style="width: 225px;"><img src="https://community.bosch-smarthome.com/t5/image/serverpage/image-id/6113i37A8C7C056093714/image-size/medium?v=v2&amp;px=400" role="button" title="Uponor 3.jpg" alt="Uponor 3.jpg" /></span></P> Mon, 24 Jul 2023 10:03:56 GMT https://community.bosch-smarthome.com/t5/einstieg-und-erste-schritte/raumthermostat-ii-230v-installation/m-p/39275#M1190 Chaifoo 2023-07-24T10:03:56Z https://community.bosch-smarthome.com/t5/einstieg-und-erste-schritte/raumthermostat-ii-230v-installation/m-p/39282#M1191 <P>Yes, just like in the schematic. Black to NO. And COM needs to be bridged to L.</P> Mon, 24 Jul 2023 11:33:02 GMT https://community.bosch-smarthome.com/t5/einstieg-und-erste-schritte/raumthermostat-ii-230v-installation/m-p/39282#M1191 Maurice 2023-07-24T11:33:02Z