with esbe,
it simply work's.

No matter what the application is, as long as it involves hydronic system control we can offer the right products and knowledge to support you. 

Heat pump 4

Heat pump application with additional heat source as backup.
For heat pump applications where back up is needed and different flow direction required is the series VZC / VZD a good choice thanks to the quick change over time (3 seconds) and the 2-point (on / off) control signal.