High-efficiency pump Wilo-Atmos PICO, electronically controlled. Maintenance-free glandless circulator with screwed connection, blocking-current proof synchronous motor according to ECM technology and built-in electronic power control for variable differential pressure control. Can be used for all heating and air-conditioning applications.

Standard-equipped with:

  • Preselectable control modes for optimum load adjustment:
    • Variable differential pressure (Δp-v), with 3 pre-defined characteristic curves,
    • Constant speed (3 constant speed stages)
  • LED display of selected control mode
  • LED display of selected characteristic curve in the control mode
  • Signal display
    • LED is lit up in green in normal operation
    • LED lights up/flashes in case of a fault
  • Minimal consumption only 4 W
  • Integrated motor protection
  • Automatic deblocking function
  • High starting torque

Pump housing made of grey cast iron, impeller made of polypropylene, stainless steel shaft with metal-impregnated carbon friction bearings.

Operating data
Min. fluid temperature Tmin-10 °C
Max. fluid temperature Tmax95 °C
Min. ambient temperature Tmin-10 °C
Max. ambient temperature Tmax40 °C
Maximum operating pressure PN10 bar
Motor data
Energy efficiency index (EEI) *≤0,20
Mains connection1~230 V ±10%, 50/60 Hz
Rated power P230 W
Min. speed nmin700 1/min
Max. speed nmax4200 1/min
Power consumption P1 min4 W
Power consumption P1 max40 W
Emitted interferenceEN 61000-6-3
Interference resistanceEN 61000-6-2
Electromagnetic compatibilityEN 61800-3
Insulation classF
Protection classIPX2D
Threaded cable connection1 x PG11
* The benchmark for the most efficient circulators is EEI ≤ 0.20
Materials
Pump housingGrey cast iron
ImpellerPP-GF40
ShaftStainless steel
BearingCarbon, metal-impregnated
Installation dimensions
Pipe connection on the suction side DNsG 1½
Pipe connection on the discharge side DNdG 1½
Port-to-port length L0180 mm
Ordering information
BrandWilo
Product descriptionAtmos PICO 25/1-6
Net weight, approx. m1,8 kg
Article number4232694
LVI number4624336