Features & benefits:

• Mixer valve control (heating circuit controller)
• Exchanges information about operating parameters with your boiler
• Can expand up to 8 heating circuits
• Quick and easily installation

The Viessmann Mixer Valve Control (Heating Circuit Controller) - ZK05257 is designed to exchange information about operating parameters with the boiler. Using the Viessmann Mixer Valve Control, the boiler system can be quickly and easily expanded to up to eight heating circuits.

You can easily find the configuration parameters in the 'configuration menu' section of the installation of the operating instruction manual.