Audited Supplier
ALPHA2 25-80 180
ALPHA2 is a circulating pump used in heating and air conditioning systems. AUTOADAPT will enable the water pump to continuously adapt to the system, ensuring optimal adaptability, low energy consumption, and simple debugging.
ALPHA2 is high efficiency canned-rotor circulator, designed for circulating liquids in heating systems. With a world-class energy efficiency index (EEI) well below the ErP benchmark it ensures substantial energy savings.
Rated flow rate: 2.14 m³/h
Rated head: 4.36 m
Minimum input power - P1: 3 W
Power input P1: 50 W
Application scenarios:ALPHA2 is suitable for commercial heating, domestic heating cycle, heating and other scenarios.
Features
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When using the ALPHA2 with two other components the ALPHA Reader and the Grundfos GO Balance app, it enables the installers to perform fast and easy hydronic balancing - without compromising on reliability, efficiency and easy installation.
The AUTOADAPT function continuously adjusts the pump performance to the actual heat demand, i.e. the size of the system and the changing heat demand during the year. The function will find the setting that provides optimal comfort with minimal energy consumption. It contributes to fast, safe and easy commissioning.
In addition, the pump also features three control modes - each with three settings
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The display shows the actual power consumption in Watts or actual flow in m3/h as well as alarms and warnings. LEDs indicate the actual operating status.
The night-setback function, when enabled automatically reduces the motor speed to save energy. The changeover depends on a change in the flow-pipe temperature.
Manual summer mode; once enabled, the pump is automatically started frequently at low speed to avoid blocking the rotor. At the same time, it saves energy.
The pump is of the canned-rotor type, which means that the pump and motor form an integral unit. The bearings are lubricated by the pumped liquid ensuring maintenance-free operation. The pump features dry-running protection.
The pump has a ceramic shaft and radial bearings, carbon thrust bearing, stainless-steel rotor can, bearing plate and rotor cladding, composite impeller, all of which contribute to long life.
The pump is self-venting through the system, which contributes to easy commissioning. The compact design featuring pump head with integrated control box and control panel fits into most common installations.
The pump housing is made of cast iron and electrocoated to improve the corrosion resistance.
The motor is a synchronous permanent-magnet/compact-stator motor characterized by high efficiency. The pump speed is controlled by an integrated frequency converter incorporated in the control box.
Liquid:Transported liquid: water
Liquid temperature range: 2.. 110 ° C
Liquid temperature during operation: 60 ° C
Density: 983.2 kg/m³
Technology:
Rated flow rate: 2.14 m³/h
Rated head: 4.36 m
TF level: 110
Approvals: VDE,CE,EAC,SEPRO
Material Science:
Pump casing: cast iron
Pump housing: EN 1561 EN-GJL-150
Pump casing: ASTM A48M-150B
impeller: Composite
PES 30% GF + PESU-GF20%
Installation:
Environmental temperature range: 0-40 ° C
Maximum operating pressure: 10 bar
Interface model: G
Size of connection: 1 1/2 inch
Pressure rating for pipe connection: PN 10
Port to port length: 180 m
Electrical data:
Minimum input power - P1: 3 W
Power input P1: 50 W
Power frequency: 50 / 60 Hz
Rated voltage: 1 x 230 V
Maximum current: 0.04.. 0.44 amperes
Encapsulation level (IEC 34-5): X4D
Insulation class (IEC 85): F
Built-in motor protection: NONE
other:
Energy (EEI): 0.18
Terminal box position: 6H
Net weight: 1.98 kilograms
Gross weight: 2.14 kilograms
Transport volume: 0.004 m³
