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Grundfos ALPHA2 25-40 Electronic Circulator Pump (99411165)

Grundfos ALPHA2 25-40 Electronic Circulator Pump (99411165)

GRUNDFOS
  • Product code: 99411165
  • EAN : 5713828674906
  • Manufacturer code: 99411165
  • Warranty: 2 years

Grundfos ALPHA2 25-40 electronic circulation pump. For use in heating systems. More information

This product is no longer available, as it has been replaced with a new model.

View the new model

Parameters and catalogs

Building length 180 mm
Connection Type External thread
Liquid temperature 2...110 °C
Power Supply 230 VAC
Pressure 10 bar
Protection against magnetic particles Yes
Pump bore DN 25
Pump connection size 1 1/2"
Pump flow rate 2 m3/h
Pump head 4 m
Weight 1.74 kg

Installation and operating instructions download

Download PDF

GRUNDFOS ALPHA2 is the new generation of small circulation pumps in the highest energy class "A". The ALPHA2 circulation pump is the newest and most innovative member of the family of high-quality Grundfos circulation pumps. These pumps are used for circulating water in heating systems and hot water systems.

The circulation pump meets the requirements of the EuP directive.

The pump shaft is made of ceramic, thus preventing the deposition of magnetic particles contained in the pumped liquid in the most critical parts of the pump.

Characteristics

AUTOADAPT Function

With the ALPHA2 pump, there are no worries about complicated adjustment and setting of the pump. If you leave the factory setting on the AUTOADAPT function, the pump will automatically analyze the given heating system, find the optimal setting, and adapt according to the requirements and changes in heat demand. A more detailed description of the AUTOADAPT function can be found in the attached catalog sheet. The AUTOADAPT function can be disabled by selecting another mode (according to proportional or constant pressure or classic three-speed operation).

Applications

  • Single-pipe or double-pipe systems with radiators.
  • Underfloor heating.
  • Heating systems with variable flow, controlled by thermostatic valves.
  • Heating systems with constant flow without thermostatic valves.
  • Systems with variable flow temperature.
  • Systems requiring reduced night operation.

Pump Features

  • Power supply 230V.
  • Max. operating pressure 10 bar.
  • Construction length 180mm.
  • Three modes of proportional pressure or constant pressure.
  • Possibility of operation as a classic three-speed pump.
  • Low energy consumption (class A).
  • Night reduced operation function.
  • Low noise level.
  • Indicator of current electricity consumption.
  • Power connection via ALPHA plug connector.
  • Thermal insulation included with the pump.

Delivery Contents

  • Pump
  • 1x connector for power connection
  • 2x rubber gasket
  • Brief manual
  • Insulation jacket

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