The ALPHA2 is a circulation pump designed for heating and air conditioning installations. AUTOADAPT continuously adjusts the pump to the installation demands, ensuring optimal comfort and low energy consumption.

Suitable for:

• Heating
• Hot water circulation in commercial buildings
• Hot water circulation in single-family houses
• Heating in single-family houses
• Industrial heating

Technical specifications:

• Max Head: 40 dm
• TF Class: 110
• Approvals on nameplate: CE, VDE, EAC
• Model: E
• Materials:
  • Pump housing: Grey cast iron, EN-GJL-150, ASTM A48-150B
  • Impeller: PES 30%GF
• Installation:
  • Ambient temperature range: 0 .. 40 °C
  • Max operating pressure: 10 bar
  • Pipe connection: G 1 1/2
  • Pressure: PN 10
  • Mounting length: 130 mm
  • Liquid: Pumped medium: Water
  • Liquid temperature range: 2 .. 110 °C
  • Liquid temperature during operation: 60 °C
  • Density: 983.2 kg/m³
• Electrical data:
  • Power input-P1: 3.. 18 W
  • Main frequency: 50 / 60 Hz
  • Nominal voltage: 1 x 230 V
  • Max current consumption: 0.04 .. 0.18 A
  • Degree of protection (IEC 34-5): X4D
  • Insulation class (IEC 85): F
  • Built-in motor protection: NONE
  • Thermal protection: ELEC
• Control systems:
  • Automatic night setback: with automatic night setback
  • Terminal box position: 6H{Type}
• Circulators for central heating.
• Maximum temperature: 110°C.
• Shaft diameter: 1 1/2".
• Maximum water lift height: 4 m.
• Maximum power: 18 W.
• Weight [kg]: 1.9

Manufacturer

Circulator Pumps Grundfos

Specifications

Electronic

Yes

Application

Heating

Maximum Pressure Head (m)

4 m

Connection Diameter

25 mm

Length

130 mm