Grundfos ALPHA2 32-80 (180 mm) Variable-Speed Circulation Pump for 40,000-60,000 kcal/h Boilers, 8 m, 4 m³/h

Grundfos ALPHA2 32-80 Variable-Speed Circulation Pump

The Grundfos ALPHA2 32-80 series domestic heating circulator (with Auto-Adapt) is the most advanced energy-efficient domestic circulator of its kind. With both variable-speed pressure-controlled operation and standard selectable three-speed operation, it is the ideal choice for a wide range of domestic central heating systems.

The Grundfos ALPHA2 32-80 is an 'A'-rated / EuP Ready Energy-labeled product under the energy labeling scheme, delivering the highest possible energy savings. The use of the latest permanent magnet motor technology reduces power consumption. With pressure-controlled operation, power consumption can be reduced to as low as 5 W.

Grundfos ALPHA2 32-80 Features

• The AUTOADAPT function reduces energy consumption to the lowest possible level without compromising on comfort. It also enables faster and safer commissioning.
• Night setback mode for energy savings
• Manual Summer mode provides energy savings during summer and safe start-up during the heating season.
• Single-button simple operation makes it extremely easy to switch between control modes.
• No external protection is required, reducing installation time.
• High-torque start-up ensures better performance even in demanding conditions.
• Seal-free design and durable components eliminate maintenance needs.
• The ALPHA plug enables quick and easy electrical cable connections.
• Insulation shells are supplied with the pumps to reduce heat loss in heating systems.
• Hydraulic balancing is fast and easy with the Grundfos GO Balance app and ALPHA Reader. With these technologies, you can guarantee hydraulic balancing without compromising reliability, efficiency, or ease of installation.
• When using the Grundfos ALPHA2 32-80 temporary installation with the ALPHA Reader MI401 and the Grundfos GO Balance app, it is possible to balance radiators and/or underfloor heating systems quickly and conveniently.

The Grundfos ALPHA2 32-80 AUTOADAPT function continuously adapts pump performance to the actual heat demand. It takes into account the system size and the varying heat demand throughout the year. The AUTOADAPT function finds the setting that delivers the ideal comfort level with minimum energy consumption, and also makes commissioning quick and easy.

The pump has three control modes, each with three settings:

• proportional pressure control
• constant pressure control
• constant curve mode

The display shows actual power consumption in watts or actual flow rate in m³/h. Grundfos ALPHA2 32-80 alarms and warnings can also be monitored on the display. The LEDs indicate the actual operating status.

When night setback is activated, the motor speed is automatically reduced for energy savings as the system temperature drops. Alternating operation between pumps depends on the temperature change in the flow pipe.

If the manual summer mode is activated, the Grundfos ALPHA2 32-80 prevents rotor seizure and saves energy by starting the pump frequently at low speed.

The seal-free rotor design means the pump and motor form a single unit. The bearings are lubricated by the fluid being transferred and require no maintenance. The pump features dry-run protection. The Grundfos ALPHA2 32-80 uses a ceramic shaft, radial bearings, a carbon bearing, a stainless steel sleeve, a bearing plate, a rotor can, and a composite impeller. These components provide a longer service life.

Commissioning of the Grundfos ALPHA2 32-80 is easier because the pump has a self-venting function. The compact design with an integrated terminal box and control panel on the pump head allows installation in the most common configurations with ease.

The Grundfos ALPHA2 32-80 pump casing is made of cast iron to enhance corrosion resistance and has been electro-chemically coated.

The motor is a synchronous permanent magnet / compact stator motor known for its high efficiency ratings. Pump speed is managed by an integrated variable frequency drive (VFD) fitted in the terminal box.