Key Features

• For use when four pipe configuration is used with a third-party cylinder
• Transfers a 230v AC signal from conventional cylinder thermostat controls
• Converts the 230V to a low voltage signal

Viessmann Cylinder Control Box For System Boiler Overview

The Viessmann Cylinder Control Box For System Boiler is for use when four pipe configuration is used with a third-party cylinder.

This transfers a 230v AC signal from conventional cylinder thermostat controls (S or Y plan) and converts the 230V to a low voltage signal as required by the Vitodens range of system domestic boilers.

For the new PlusBus Vitodens 200-W, just snip the boiler connection plug off and hard wire into three and four on the cylinder sensor connection block.