One circle secondary thermostatic heating system

One circle secondary thermostatic heating system

Heating system for radiator and floor heating - Thermostatic

mixing valve
Temperature range 20-45ºC and 45-70ºC

Content of package:

  • Heating pump unit fixed (thermostatic) temperature mixing valve
  • Euroster 11M controller

Pump unit with thermostatic mixing valve



Heating circuit supplier pump unit

  • Space-saving, compact design
  • Insulated, aesthetic
  • Quick and easy assembling
  • Mechanic friend therefore is more economical to build up
  • Plannable mechanic costs
  • Adjustable heating water temperature per heating circuit
  • Reasonable price/value rate
  • Long lifetime for the best quality components


DN20 pump units can be connected to heating systems with powers up to 22kW, with a very low energy consumption assured by high efficiency synchronous circulating

Dimensions: 180x302x142mm (EPP insulation box)
Centre distance: 90mm
Especially suitable to manage medium-low powers in small rooms, thanks
to its centre distance of only 90 mm.


For power up to 22 kW (with Δt 20 K)
Maximum flow 1000 l/h.
Kvs value: 2,0
PN 10, max temperature 110°C (unit without pump).

  • 3/4” Male with swivel tang to the heat source or to the distributor.
  • 3/4” Female to the user.


The unit for 1/2” (130 mm) circulating pumps consists of:


  • Connection.
  • Thermostatic mixing valve with temperature setting range, models F1 and F2.
  • High efficiency synchronous pre-wired circulating pump (for the models that include it).
  • Flanged ball valve supplied with in-handle thermometer (coded red, range 0°C-120°C).


  • Flanged ball valve with non return valve 20 mbar (which can be excluded by rotating the handle by 45°) supplied with in-handle thermometer (coded blue; 0°C-120°C).
  • “T” Connection for mixing valve.
  • Connection.


Approximate data for underfloor and radiators heating systems

Model Field of regulation Δt Kvs Approximate power and flow of the installation Recommended circulating pump Residual lifting power Approximate surface  of the  underfloor heating system
F1 20-45ºC 8 K 2.0 4,5kW 500l/h Wilo Yonos Para RS 15/6 5mH₂O Up to a 50m²
F2 45-70ºC 20 K 2.0 11kW 500l/h Wilo Yonos Para RS 15/6 5mH₂O -
F1 20-45ºC 8 K 2.0 9kW 1000l/h Wilo Yonos Para RS 15/7,5 5mH₂O From 50m² to 100m²
F2 45-70ºC 20 K 2.0 22kW 1000l/h Wilo Yonos Para RS 15/7,5 5mH₂O -

Reference temperatures:
F1 Model: TH: 550C , TV: 240C TMIX: 320C
F2 Model: TH: 750C , TV: 400C TMIX: 550C








Euroster 11M



Electronic, programmable controller designed for control of a three-way valve with actuator and CH circulation pump. It automatically maintains a constant temperature at a preset level or ensures a proper temperature of water in return piping in a CH system with coal-fired boiler. Possibility to connect a room thermostat. E11M controller is equipped with an AntiStop function which prevents seizure of the idle pump and valve rotor.


Controller function

  • keeps constant water temperature: in the central heating
    circuit or in boiler return
  • possibility of connecting room regulator
  • Anti-Stop function to protect pumps and valve against
  • frost protection
  • pump operation test
  • temperature reading correction


EUROSTER 11M operates in one of the two modes: heating medium temperature regulation (e.g. in floor heating) or return temperature stabilization. Operation mode is changed when restoring factory settings, provided for each of the modes.

Set 1: intended for system with heating medium temperature regulation

Set 2 intended for system with return temperature regulation


Technical specifications:

  • Power supply: 230V, 50Hz
  • Device controlled: mixing valve actuator, CH pump
  • Rated output load: 3 A 230 V 50 Hz
  • Rated power consumption: 1,6W
  • Operating temperature range: 5-40°C
  • Storage temperature range: 0-65°C
  • Temperature measurement range: 0-110°C
  • Temperature control range: 10-70°C (CH temperature congrol mode)
  • Temperature limit of starting pump unit: 20-80°C
  • Temperature control hysteresis: 2-10°C
  • Temperature control accuracy: 1°C
  • IP rating: IP40
  • Status visualization: backlit LCD
  • Colour: black
  • Mount method: wall-mounted, wall plugs
  • Weight (controller with cables): 0,76 kg
  • Certificates/standards: complies with the EMC and LVD Directives
  • Dimensions (W/HxD) mm: 150/90/52
  • Packing list: Euroster 11M controller, wall plugs, instructions,
    mounting template, sensor bands


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