The UPM2 is designed to substitute the small UPS circulator as a high-efficient circulator getting integrated into heating end-user systems. UPM2 offers hydraulic backward compatibility with existing platforms and covers a very broad range of operation, even down to low meter heads. The extended performance is available.


Available versionsControl modeP1             
UPM2 xx-40PWM26 W
UPM2 xx-50PWM37 W
UPM2 xx-60PWM48 W
UPM2 xx-70PWM63 W
UPM2 xx-75PWM70 W

Characteristic Features

  • Glandless circulator pumps integrated in products shall have an energy efficiency index (EEI) of not more than 0.23, the benchmark level being 0.20
  • Controlled via a digital low-voltage pulse-width modulation (PWM) signal which means that the speed of rotation depends on the input signal. The speed changes as a function of the input profile.
  • A PWM feedback signal provides information about the current performance of the pump, such as current power consumption or various alarm or warning modes


  • Ready for Conversion according to Ecodesign Requirements for 2015 with EEI ≤ 0,23
  • High efficiency and low power consumption
  • Flexibility for System Customisation regarding different control mode options, housings and performances
  • System and Pump Protection by various alarm functions
  • Feedback signals available to optimize the whole system performance
  • Supporting Life time Protection by derating the maximum power depending on the electronic temperature

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