Pump unit with electronic mixing valve
Heating circuit supplier pump unit
Advangates:
- 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
Pump unit with servomotor mixing valve 3/4”
2-WAY PUMP UNIT WITH 3-WAY MIXING VALVE WITH BUILT-IN BY-PASS 0-50%
DN20 pump units can be connected to heating systems with powers up to 33kW, with a very
low energy consumption assured by high efficiency synchronous circulating pumps.
EPP insulation box (Measurements: 180x302x142 mm).
Centre distance 90 mm.
Especially suitable to manage medium-low powers in small rooms,
thanks to its centre distance of only 90 mm.
For power up to 33 kW (with Δt 15 K).
Maximum flow 1900 l/h.
Kvs value: 5.5
For an accurate measuring or for higher flows, please refer to the curves shown in the next page.
The unit for 1/2” (130 mm) circulating pumps consists of:
Supply:
- Connection.
- 3-way mixing valve with adjustable by-pass. Through the bypass
(adjustable from the front part) it is possible to mix on the
supply line a quantity of water coming back from the return
line of the system, from 0 up to 50%.
- 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).
Return:
- VFlanged 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.
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Approximate data for applications in low and medium temperature heating systems
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| ∆t |
Approximate power and flow of the installation
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Recommended circulating pump
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Residual lifting power
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Approximate surface of the underfloor heating system
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8 K
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12 kW - 1300 l/h
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Wilo Yonos Para RS 15/6
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4,5 mH₂0
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Up to 100 m²
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8 K
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17 kW - 1900 l/h
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Wilo Yonos Para RS 15/7,5
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5 mH₂0
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Up to 170 m²
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15 K
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23 kW - 1300 l/h
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Wilo Yonos Para RS 15/6
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4,5 mH₂0
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-
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15 K
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33 kW - 1900 l/h
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Wilo Yonos Para RS 15/7,5
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5 mH₂0
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-
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Working principle
During the regular working process, with the mixer completely closed on the recy cling for example, a part of the fluid is aspirated from the pump all along the by-pass line. This quantity of fluid (narrow blue arrow) represents 50% of the capacity of the mixer (red arrow). As a result, one has a very high delivery capacity and a reduced temperature.
Servomotor TRM20:
3 points servomotor for mixing valve, bidirectional,
reversible.
Operating range of 90°, 230V, 105 s., torque 2 Nm. IP40.
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
stoppage
- 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
