Grundfos ALPHA SOLAR 15-75 130 Circulator Pump

The Grundfos ALPHA SOLAR 15-75 130 circulator pump, reference 98989298, is an ideal solution for domestic heating systems that use solar thermal technology. With its efficient design and the ability to be controlled via a low-voltage PWM signal from a solar controller, this pump offers optimised performance to maximise energy efficiency in solar thermal installations. Its versatility and ease of use make it an ideal choice to enhance the performance of home solar systems.

Product Applications:

The ALPHA SOLAR 15-75 130 pump is suitable for:

• Domestic heating systems that use solar thermal energy as the main heat source.
• Thermal solar installations, as it allows the pump speed to be adjusted according to solar conditions via the PWM signal, maximising energy savings.

Technical Data:

• Nominal flow rate: 1.85 m³/h, suitable for ensuring efficient circulation in domestic solar thermal systems.
• Nominal head: 3.285 m, providing the capacity to handle the typical circulation needs in a solar heating system.
• Maximum head: 75 dm, allowing for easy handling of larger circuits.

Control Features:

• Three constant curve modes: Allows selection between different operating configurations to optimise performance according to system needs.
• Speed control via PWM signal: A key feature of this pump is its ability to adjust speed based on the PWM (Pulse Width Modulation) signal from the solar controller, enabling efficient energy use and maximising heat production in solar systems.

Materials and Durability:

The Grundfos ALPHA SOLAR 15-75 130 is designed to ensure long life and reliability under demanding conditions. Its main components include:

• Hydraulic body: Made from high-quality cast iron (EN 1561 EN-GJL-150 / ASTM A48-150B), providing high resistance to corrosion and wear.
• Impeller: Made of glass fibre reinforced composite (PES 30% GF + PESU-GF20%), a lightweight and durable material that contributes to the pump's durability and efficiency.

Installation:

The Grundfos ALPHA SOLAR pump is designed for easy and quick installation in solar thermal systems:

• Port-to-port length: 130 mm, facilitating integration into heating systems with standard-sized pipes.
• Connection type: G (cylindrical thread) with a 1-inch connection size, compatible with most domestic installations.
• Ambient temperature range: 2 to 70°C, ensuring stable operation under a variety of weather conditions.

Energy Performance:

One of the main advantages of the Grundfos ALPHA SOLAR is its energy efficiency:

• Minimum input power: 2 W, ensuring extremely low energy consumption when operating under light loads.
• Maximum input power: 45 W, sufficient to provide optimal performance even during high demand periods.
• Energy Efficiency Index (EEI): 0.20, placing it as one of the most efficient options in its category, meeting the strictest energy efficiency standards.

Electrical Data:

• Nominal voltage: 230 V, compatible with standard electrical networks.
• Network frequency: 50/60 Hz, allowing use in various regions.
• Maximum current consumption: 0.48 A, ensuring efficient energy use even when operating at maximum capacity.
• Protection grade: IPX4D, providing protection against water splashes from any direction, making it suitable for humid environments.

Ease of Use:

The ALPHA SOLAR 15-75 130 pump is designed with ease of use in mind. Its ability to be controlled via a PWM signal ensures it can be dynamically adjusted according to solar system conditions, optimising energy efficiency. Additionally, the three constant curve modes offer flexibility to adapt to system needs without complicated adjustments.

Other Specifications:

• Net weight: 2.01 kg, facilitating its installation and handling.
• Gross weight: 2.11 kg, including packaging.
• Transport volume: 0.004 m³, allowing for efficient and economical transportation.

Standards and Approvals:

The Grundfos ALPHA SOLAR 15-75 130 pump complies with multiple international approvals such as CE, VDE, and EAC, ensuring adherence to the highest standards of quality, safety, and sustainability. It is also certified under the WEEE environmental regulation, guaranteeing a lifecycle with reduced environmental impact.