Grundfos ALPHA1 is an intelligent and energy-efficient circulation pump designed for heating systems and hot water circulation. It is based on the proven ALPHA2 platform and combines modern technology, advanced features, and intuitive control with an affordable price. This offers high reliability, flexibility, and easy installation. It is an ideal replacement for older pumps (e.g., UPS) and a suitable choice for new installations. It is suitable for both single and double-pipe systems, radiator heating, and underfloor heating.

Construction

• Permanent magnets and compact motor
• Self-venting body
• Available in cast iron and stainless steel variants
• ALPHA connector for quick electrical installation

Functions

• Modes: proportional, constant pressure, and 3 speed levels
• Display showing current consumption (W)
• Automatic protection against blockage and overload
• EEI ≤ 0.20 – high energy efficiency

Usage

• Single and double-pipe heating circuits
• Underfloor heating
• Hot water circulation (N variant – stainless steel)
• Replacement of older UPS pumps

Can be used for:

The ALPHA1 series is suitable for both standard and more demanding applications. It can be used in family homes, apartments, and smaller commercial buildings.

Easy control with a single button allows you to select the optimal operating mode. The integrated display provides immediate feedback on current energy consumption.

Installation is quick and hassle-free thanks to its compact dimensions and ALPHA electrical connector. Available in construction lengths of 130 or 180 mm, with G1, G1½, or G2 thread depending on the type.