1.) The Grundfos is suitable for:

  • One and two-pipe radiator systems
  • Underfloor heating systems
  • Domestic hot-water recirculation
  • Suitable for air-conditioning systems with liquid temperatures ≥ 2 °C

Key features and benefits:

  • Proportional pressure mode
  • Constant speed mode
  • Constant pressure mode
  • Easy installation and operation

2.) Benefits

  • Fits 95 % of boilers equipped with Grundfos pumps
  • State-of-the-art energy efficient motor for energy and cost savings
  • Reliable performance and long pump lifetime
  • Quiet operation, low running noise levels of 42-43dB(A)

The is suitable for running in:

  • Boilers
  • Underfloor heating installations
  • Mixing units and boiler kits
  • Domestic hot water systems
  • Biomass heating

3.) Characteristic Features

  • High Efficiency circulator for standalone applications based on a permanent-magnet motor/compact-rotor technology
  • According Ecodesign requirement January, 2013; EEI ≤ 0.23
  • Internally self-controlled circulator
  • Integrated differential-pressure control enabling adjustment of pump performance to the actual system requirements.
  • 5 Configuration Options:
    highest proportional pressure curve (default),
    lowest proportional pressure curve
    lowest constant pressure curve
    highest constant pressure curve
    constant curve speed I, II and III
  • ALPHA2 L can run on as little as 5 W

4.) Applications

The compact design makes these pumps suitable for both temporary and permanent installation. They are suitable for both free-standing installation and installation by means of an auto-coupling guide rail system. The APG pumps are designed for pumping:

  • Sewage
  • Wastewater
  • Wastewater with high content of fibrous material

Features and benefits

  • Integrated cutting system (APG)
  • Dry or submerged installation
  • Installation on auto coupling
  • Sensors in windings

5.) Benefits

  • Fits 95 % of boilers equipped with Grundfos pumps
  • State-of-the-art energy efficient motor for energy and cost savings
  • Reliable performance and long pump lifetime
  • Quiet operation, low running noise levels of 42-43dB(A)

 suitable for running in:

  • Boilers
  • Underfloor heating installations
  • Mixing units and boiler kits
  • Domestic hot water systems
  • Biomass heating

6.) Advantages:

  • High-efficient motors EuP 2015 ready.
  • Suitable for installation in existing systems.
  • Low-noise operation.
  • Built-in electrical and thermal protection of the pump.
  • Simple setting and operation in a very compact design.
  • Plug and play with patented cable plug for safe and easy connectio