Information about Grundfos ALPHA1 L 20-60 130 Circulator Pump
The Grundfos ALPHA1 L 20-60 130 circulating pump is an advanced and efficient solution designed for domestic, commercial, and industrial heating applications. With a permanent magnet motor with ECM technology, this pump ensures optimal operation with reduced energy consumption, complying with the strict requirements of the ErP Directive. Thanks to its versatility and ability to integrate multiple control modes, the ALPHA1 L is ideal for new installations or as a replacement in existing heating systems.
Versatile control modes:
The ALPHA1 L 20-60 130 offers three different operating modes, adapting to the specific needs of each heating system:
- Radiator heating mode, which automatically adjusts the pump speed to optimise heat distribution in radiator systems.
- Underfloor heating mode, ideal for systems that require a constant and balanced flow to maintain a comfortable temperature over large surfaces.
- Constant curve/speed mode, allowing for more precise control in applications that need a constant water flow.
Additionally, the pump can be controlled via a PWM (pulse width modulation) signal, facilitating its integration into smart heating systems, improving energy efficiency and optimising consumption according to the system's needs.
High durability materials and robust construction:
The Grundfos ALPHA1 L is constructed with high-quality materials to ensure long-lasting life and reliable operation. The pump body is made of cast iron with a galvanised coating to enhance its resistance to corrosion, making it an excellent choice for hot water heating applications. The impeller, made from composite material (PES+30% GF), is highly resistant to corrosion, ensuring durable performance even in demanding conditions.
Maintenance-free operation:
The pump's wet rotor design allows the bearings to be automatically lubricated by the pumped liquid, eliminating the need for regular maintenance. This design also ensures quiet operation, which is particularly important in residential applications. The pump and motor form an integrated unit without mechanical seals, simplifying installation and reducing the risk of mechanical failure.
Easy installation and compact design:
With a port-to-port length of 130 mm and 1 1/4 inch connections, the ALPHA1 L pump is easy to install in most heating system configurations. Its compact and lightweight design, with a net weight of just 1.79 kg, makes handling and assembly easy, saving time and effort during installation. The integrated control box includes an easily accessible control panel, allowing installers to quickly and easily select the operating mode.
Optimised energy efficiency:
One of the main advantages of the ALPHA1 L 20-60 130 is its low energy consumption. With a minimum input power of just 4 W and a maximum of 45 W, this pump is extremely efficient, helping to reduce operating costs and environmental impact. Its energy efficiency index (EEI) of 0.20 is a testament to its ability to deliver high performance with low electrical consumption.
Advanced protection and safety:
The pump is equipped with a protection rating of X4D and an insulation class F, ensuring its safety and durability in a wide variety of operating conditions. It can handle working pressures up to 10 bar and liquid temperatures up to 95°C, making it suitable for a variety of heating applications.
Additional technical features:
- Nominal flow rate: 1.94 m³/h, suitable for medium-sized heating applications.
- Nominal head: 2.01 metres, ensuring efficient heat distribution in heating systems.
- Liquid temperature: Operating range of 2°C to 95°C, providing flexibility for various heating applications.
- Maximum working pressure: 10 bar, suitable for high-pressure systems.
The Grundfos ALPHA1 L 20-60 130 circulating pump is an ideal choice for those seeking an efficient, reliable, and easy-to-install heating pump. Its compact design, combined with its ability to operate in multiple modes and its low maintenance requirements, makes it a versatile solution for all types of heating systems. With its permanent magnet motor and ECM technology, this pump not only optimises energy consumption but also ensures durable and efficient operation.
