Recent content by buster19

Thanks thats great. So number 3 is a live source & there is no link to the boilers live terminal required at all ?. All the Best!

Hi, Need help on wiring a siemens raa20 thermostat to a valiant ecotec. The valiant has terminals 3 & 4 for a external thermostat. The siemens only has two connections ( L & Y1 ). Which goes where? . Any help appreciated. Thanks