Grundfos ALPHA2 15-60 (130 mm) Variable-Speed Circulation Pump for 25,000–40,000 kcal/h Boilers, 6 m, 3.4 m³/h

Grundfos ALPHA2 15-60 Variable-Speed Circulation Pump

SKU	99411114
Manufacturer	Grundfos
Manufacturer Warranty	2 Years
Weight	2.5 Kg
Dimensions	130mm x 95mm x 127mm
Connection Type	Union – 1"
Pump Union Range	130 mm
Maximum Flow Rate	3.4 m³/h
Maximum Head	6 Meters
Material	Cast Iron
Impeller Material	Composite

The Grundfos ALPHA2 15-60 series domestic heating circulator (with Auto-Adapt) is the most advanced energy-efficient domestic circulator of its kind. It is an ideal choice for various domestic central heating systems, offering both variable-speed pressure-controlled operation and standard selectable three-speed operation.

The Grundfos ALPHA2 15-60 is an 'A'-rated / EuP Ready Energy-labeled product that achieves the highest possible energy savings under the energy labeling scheme.

The Grundfos ALPHA2 15-60 uses the latest permanent-magnet motor technology to reduce power consumption. With pressure-controlled operation, power consumption can be reduced to as low as 5 watts.

Grundfos ALPHA2 15-60 Specifications

• 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 Grundfos ALPHA2 15-60 plug enables quick and easy electrical 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 available on the Grundfos ALPHA2 15-60. With these technologies, you do not have to compromise on reliability, efficiency, or ease of installation while guaranteeing hydraulic balancing.
• When using the ALPHA2 temporary installation feature 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 15-60 AUTOADAPT function continuously adapts pump performance to the actual heat demand, taking into account the system size and varying heat demand throughout the year.

The AUTOADAPT function finds the setting that delivers the ideal comfort level with minimum energy consumption. It 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 Grundfos ALPHA2 15-60 display shows actual power consumption in watts or actual flow rate in m³/h. Alarms and warnings can also be monitored on the display. 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.

When the Grundfos ALPHA2 15-60 manual summer mode is activated, the pump starts the rotor frequently at low speed to prevent blockage and save energy.

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 includes dry-run protection.

The Grundfos ALPHA2 15-60 pump 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.

The pump's built-in self-venting function makes commissioning easier. The compact design, with its integrated terminal box and control panel, fits easily into the most common installation configurations.

The pump casing is made of cast iron and is electrochemically coated to improve corrosion resistance.

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.