Danfoss Central Heating Programmer, White, 155 x 90 30mm

7 Day, 5/2 Day & 24Hr schedules 1, 2 or 3 heating periods (2, 4 or 6 events) Auto, Boost, On or Off modes Holiday override Service Due Timer 2 channel switching with 230Vac outputs. Seperate user channel overrides Heating/DHW or 2 Heating channel setup Heating and Hotwater icons Mains 230v