FOLLOWING THE INSTRUCTIONS WITH THE NEW UNIT,THE WIRING GOES FROM 8 TERMINALS TO 6 WITH THE OTHER 2 NOT CONNECTED,BUT THE EXISTING ST7100 UNIT HAS BEEN WIRED DIFFERENTLY. APART FROM THE MAINS FEED,THERE ARE 2 CABLES OF 3 WIRES EACH COMING OUT OF THE UNIT: 1st. CABLE HAS BROWN-EARTH-BLUE...BLUE TO NE...
