Wilo-Yonos ECO…-BMS


Glandless circulation pump with threaded connection, EC motor with automatic power adjustment.


Hot-water heating systems of all kinds, air-conditioning systems, closed cooling circuits, industrial circulation systems

Type key

Example: Wilo-Yonos ECO 30/1-5-BMS
Yonos ECO High-efficiency pump (screw-end pump)
30/ Nominal connection diameter
1-5 Nominal delivery head range [m]
BMS Building management system for connection to building automation.

Special features/product advantages

  • Potential-free collective fault signal contact (SSM) for connection to external monitoring units (e.g. building automation) and control input 0-10 V
  • Control cable (4-wire, 1.5 m) for SSM connection and 0-10 V
  • Wilo-Connector
  • Thermal insulation as standard
  • Pump housing with cataphoretic (KTL) coating protects against corrosion due to condensation formation

Technical data

  • Energy efficiency index (EEI) ≤ 0.20
  • Fluid temperature -10 °C to +110 °C (at max. ambient temperature +25 °C)
  • Mains connection 1~230 V, 50/60 Hz;
  • Protection class IP 44
  • Threaded connection Rp 1 and Rp 1¼
  • Max. operating pressure 10 bar

Operating modes

  • Control mode (n=constant)
  • ∆ p-c for constant differential pressure
  • ∆ p-v for variable differential pressure

Manual functions

  • Setting the operating mode
  • Differential pressure setpoint setting

Automatic functions

  • Infinitely variable power adjustment according to the operating mode
  • Deblocking function
  • Soft start
  • Full motor protection with integrated trip electronics

External control functions

  • “Analogue In 0 – 10 V” control input (remote speed adjustment)

Signal and display functions

  • Collective fault signal (potential-free NC contact)


  • Wrench attachment point on pump body
  • Quick electrical connection with Wilo-Connector
  • Control cable (4-wire, 1.5 m) for SSM connection and 0-10 V
  • Blocking-current proof motor
  • Thermal insulation as standard for heating applications

Scope of delivery

  • Pump
  • Thermal insulation
  • Wilo-Connector
  • Control cable
  • Gaskets
  • Installation and operating instructions


  • Screwed connections
  • Adapter fittings
  • Wilo-Connector with 2 m connection cable and shockproof plug
  • Angle plug with 2 m connection cable