VIESSMANN Vitosolic 200, type SD4

Electronic temperature difference control for systems with up to four consumers.

For bivalent systems with solar panels and oil/gas and solid fuel boilers:

• for bivalent drinking water heating,
• for bivalent drinking water and swimming pool water heating,
• for bivalent DHW heating and to support room heating. With digital temperature display, power accounting and diagnostic system. Communication with Vitotronic boiler control units to suppress reloading of the DHW cylinder and/or heat up the preheating stage and actuation of speed-controlled pumps is possible. Connection options for heat meter and/or solar cell. Possibility of recording the operating values ​​of the solar system with an SD memory card (storage capacity up to 2 GB, file system FAT 16). For wall mounting, cylinder and collector temperature sensor and additional temperature sensor included.