VIESSMANN Vitosolic 100, type SD1

Electronic temperature difference control.

For bivalent DHW heating with solar collectors or oil/gas and solid fuel boilers. With digital temperature display, power accounting and diagnostic system. Communication with Vitotronic boiler control units to suppress DHW cylinder recharging and/or heat up the preheating stage and actuation of a speed-controlled solar circuit pump. For wall mounting, cylinder and collector temperature sensor included.