Wirsbo proMIX Mixing Control

Includes proMIX control and outdoor sensor. It does NOT include any Universal Sensors or installation manual (installation manual can be found online). It appears to have been unused, but some of the holes were taken out of the bottom.

Guaranteed to work properly. If it does not, returns will be accepted for 30 days with return shipping cost paid.

The proMIX™ 201 is a weather-responsive mixing control that offers single-temperature reset using variable speed injection mixing. The proMIX 201 mixes one supply temperature for radiant floor heating, while simultaneously protecting the boiler from low return water temperatures. It uses a boiler enable signal to fire the boiler. The proMIX 201 can also be used in a setpoint mode where the control will maintain a constant supply water temperature.