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The Grundfos Alpha1 L circulator pump It is the universal replacement solution specifically designed to modernize or repair boilers that incorporate Grundfos pumps. It represents a straightforward and reliable upgrade that guarantees exceptional compatibility with 95% of existing systems.
This pump doesn't just restore your heating system to working order; it upgrades it. Thanks to its energy-efficient motor and compact design, the Alpha1 L is the gold standard for replacing older or inefficient models.
The key to the Alpha1 L Its strength lies in its ingenious design, which addresses the main replacement problems in the sector:
Maximum Compatibility: It is the only replacement circulation pump that fits directly into the 95% of boilers that use Grundfos pumps, regardless of the final brand of boiler.
Simplified Installation: Its compact design and simple connections eliminate the need to purchase additional spare parts or make complex modifications.
Intelligent Control (PWM): It incorporates an external wired input signal (PWM) that allows precise and efficient speed control by the boiler itself, optimizing performance.
Environmental Tolerance: Designed to work reliably at high ambient temperatures, ensuring a long service life even under demanding installation conditions.
Transform the efficiency of your system with minimal investment.
| Key Benefit | Technical Value/Return on Investment |
| Superior Energy Savings | State-of-the-art motor with unsurpassed energy efficiency (IEE of 0.20). Significantly lower running costs than outdated models. |
| Silent Operation | Exceptionally low noise level, operating between 42-43 dB(A). Ideal for residential installations where acoustic comfort is a priority. |
| Long Service Life and Reliability | High-quality materials and stable operation ensure reliable performance over time. |
| Easy Maintenance | It incorporates a manual release screw accessible from the front of the pump, facilitating purging and maintenance in the field. |
The Alpha1 L meets the most demanding technical requirements in the industry:
Energy Efficiency Index (EEI): 0.20
Control: External PWM input signal for variable speed control.
Design: Compact, easy to adjust and replace (Plug-and-play).
Compatibility: Suitable for replacement in 95% of Grundfos boilers.
Noise Level: 42 to 43 dB(A) (Quiet operation).
Materials: High-quality components for long-lasting performance.
The universal design of this pump makes it perfect for multiple applications in heating and domestic hot water systems:
Boilers (Replacement and Renewal).
Underfloor heating systems.
Mixing units and boiler kits.
Domestic hot water (DHW) systems.
Biomass heating systems.
No, the Alpha1 L Circulating Pump has been designed as a direct (plug-and-play) replacement that fits 95% of boilers equipped with Grundfos pumps. Its compact design and standard connections minimize the need for extra parts.
The Energy Efficiency Index (EEI) of 0.20 indicates that the Alpha1 L is among the most efficient pumps on the market. This translates into significantly lower electricity consumption than older models, resulting in lower operating costs and a faster return on investment.
Yes, the pump incorporates an external PWM (Pulse Width Modulation) input signal that allows the boiler to precisely control the pump speed. This ensures that the pump always operates at the system's optimal demand.
We are authorized Grundfos distributors and offer expert technical support. If you are an installer or professional and need advice on compatibility or installation, please do not hesitate to contact our support team by calling 952972464.
Download the full product catalog for detailed specifications.
