ALPHA3 15-50/60 130 is a high-efficiency circulator pump designed for circulating liquids in heating systems. With an energy efficiency index (EEI) well below the ErP benchmark, they ensure substantial energy savings. ALPHA3 is completely controlled with Grundfos GO Remote via Bluetooth, which gives you step-by-step assistance to pump configuration, maintenance and commissioning, including:

?Operating and control modes.

?Scheduling for when the pump should operate incl. summer mode.

?Pump venting process.

?Warning and alarm status.

The pump features radiator and underfloor-heating control modes with AUTOADAPT, which continuously adjusts the pump performance to the actual heat demand, i.e. the size of the system and changing heat demand during the year. The AUTOADAPT feature finds the setting that provides optimal comfort with minimal energy consumption and makes the commissioning fast, safe, and easy. ALPHA3 also offers proportional-pressure, constant-pressure and constant-curve control modes with setpoint adjustment anywhere between the maximum and minimum curve of the chosen setting. Furthermore, ALPHA3 can communicate directly with the Grundfos GO Balance app, enabling installers to easily perform hydronic balancing of radiator and underfloor-heating systems. ALPHA3 is furthermore compatible with ALPHA Reader and the Grundfos GO Balance app, enabling the installers to easily perform hydronic balancing of radiator and underfloor-heating systems. With the automatic night setback function, the pump automatically changes between normal duty and night setback. The changeover depends on the flow-pipe temperature controlled by the heating appliance. The design and the chosen materials of the pump contribute to long life. The pump is self-venting through the system, which contributes to easy commissioning. The compact design, featuring a pump head with an integrated control box, fits into most common installations. Pump and motor form an integral unit without a shaft seal. The bearings are lubricated by the pumped liquid. These constructional features ensure maintenance-free operation. The active dry-running protection feature protects the pump against dry running during startup and normal operation. In case of a blocked rotor, the pump will continuously attempt to restart with highest possible torque. Pump housings made of cast iron are electrocoated to improve corrosion resistance. The motor is a synchronous permanent-magnet/compact-stator motor characterised by high efficiency. The pump speed is controlled by an integrated frequency converter incorporated in the control box. Insulating shells are supplied with pumps to minimise heat loss in heating systems.

Liquid: Pumped liquid: Water Liquid temperature range: 2 .. 110 ?C Selected liquid temperature: 60 ?C Density: 983.2 kg/m3 Technical: Rated flow: 1.94 m3/h Rated head: 3.28 m TF class: 110 Approvals: CE,VDE,UKCA Materials: Pump housing: Cast iron Pump housing: EN 1561 EN-GJL-150 Pump housing: ASTM A48M-150B Impeller: Composite Impeller: PES 30% GF + PESU-GF20% Installation: Range of ambient temperature: 0 .. 40 ?C Maximum operating pressure: 10 bar Type of connection: G Size of connection: 1 1/2 inch Pressure rating for connection: PN 10 Port-to-port length: 130 mm Electrical data: Minimum power input - P1: 3 W Power input P1: 34 W Mains frequency: 50 / 60 Hz Rated voltage: 1 x 230 V Maximum current consumption: 0.04 .. 0.32 A Enclosure class (IEC 34-5): X4D Insulation class (IEC 85): F Built-in motor protection: NONE Others: Energy (EEI): 0.17 Terminal box position: 6H Net weight: 1.85 kg Gross weight: 2.01 kg Shipping volume: 0.004 m3 Country of origin: DK Custom tariff no.: 84137030