CTR1004 | CTR1009 | When all mains cables are connected and the mains switches are set to "ON", simple touch the front screen of the RadiCentre.
CTR2008A | When using a RadiCentre CTR2008A press the "on" button on the front of the RadiCentre
CTR1001S | When using a RadiCentre CTR1001S (single slot). Simply turn on the mains