Grundfos Solar Pump

Grundfos UPM3 SOLAR OEM circulator pump is an OEM high efficient circulator offering flexible solutions for thermal solar systems. It is designed to work both with and without PWM signal, allowing you to upgrade your systems without having to change the controller.

With PWM Signal:
Externally speed controlled
Choice of one of 4 PWM SOLAR Profile C curves

Without PWM Signal:
Externally speed controlled
Using the Mini Superseal signal cable connection
Configured via user interface or pre-set in Grundfos factory