Viessmann EM-S1 solar module extension - wall mounted - Z019336

Solar module extension.

PlusBus subscriber EM-S1 solar module extension.

The EM-S1 solar module extension is to control heating systems with solar DHW heating, functions.

• Control and display via the heat generator control unit
• Switching the solar circuit pump
• Solar circuit pump speed control via PWM signal
• Only use solar circuit pumps with PWM input.
• Suppression of DHW cylinder reheating by the heat generator subject to solar yield
• Collector safety shutdown
• Electronic temperature limitation in the DHW cylinder
• Switching of a transfer pump for the DHW cylinder
• Interval function
• Frost protection function

Comprising of:

• EM-S1 Module Extension
• Cylinder temperature sensor
• Collector temperature sensor