Grundfos circulator pump ALPHA3 25-80 130 cod. 99371955
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Grundfos circulator pump ALPHA3 25-80 130 cod. 99371955

Grundfos variable speed circulator ALPHA3 25-80 130 cod. 99371955

Useful to

  • Heating in commercial buildings
  • Home heating
  • Industrial heating

ALPHA3 is a circulator designed for heating systems and is fully controlled via the Grundfos GO Remote app, which allows for easy hydronic balancing of radiator and underfloor heating systems.

€703.80 VAT included €1,380.00 -49% €576.89 (VAT excl.)

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Description

Grundfos variable speed circulator ALPHA3 25-80 130 cod. 99371955

ALPHA3 25-80 130

Product code 99371955

High efficiency fixed rotor circulator, designed for the circulation of liquids in heating systems. With a world-class energy efficiency index (EEI) well below the ErP benchmark, it guarantees significant energy savings.

The ALPHA3 has a built-in Bluetooth radio and is fully controlled by a smart device via the Grundfos GO Remote app. Provides step-by-step assistance in setting up, maintaining and commissioning the pump.

The ALPHA3 communicates directly with the Grundfos GO Balance app, which allows installers to perform quick and easy hydronic balancing.

The AUTOADAPT function, integrated in the radiator and underfloor mode, continuously adjusts the pump performance to the actual heat demand, i.e. the size of the system and the variation in heat demand during the year. The AUTOADAPT function will find the setting that provides optimal comfort with minimal energy consumption. In this, it also makes commissioning fast, safe and easy.

Features

  • Radiator mode with AUTOADAPT the easy choice for two-string radiator heating systems
  • Underfloor mode with AUTOADAPT the simple choice for underfloor heating systems
  • Combined radiator and floor mode for systems with a combination of heating systems
  • In programming and summer mode, a real-time clock allows you to select when the pump should run and not to save energy
  • Simple user interface: the pump is fully managed by the Grundfos GO Remote app
  • Alarm and warning log with assistance via Grundfos Go Remote
  • No external motor protection needed to reduce installation time
  • High torque starting improves starting in difficult conditions
  • Dry-running protection during start-up and normal operation
  • Maintenance-free thanks to the encapsulated rotor design and the use of robust components
  • The ALPHA plug makes electrical installation quick and easy
  • Insulating shells are supplied with the pumps to minimize heat loss in heating systems

In addition, the pump also has three control modes with incremental set point adjustment that allows you to adjust the pump setting to a certain duty point:

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

The display shows the actual energy consumption in Watts or the actual flow in m3 / h. The LEDs indicate the actual operating status.

The design of the pump and the materials chosen contribute to the long life. The pump will automatically vent through the system, which contributes to easy commissioning. The compact design, featuring a pump head with an integrated control box, fits the most common installations. The pump and motor form an integral unit without mechanical seal. The bearings are lubricated by the pumped liquid. These construction features ensure maintenance-free operation.

The pump body is made of cast iron. The housing and pump head are electrically coated to improve corrosion resistance.

The motor is a permanent magnet synchronous motor characterized by high efficiency. The pump speed is controlled by an integrated frequency converter built into the control box.

The benchmark for the most efficient circulators is EEI ≤ 0.20.

Data sheet
GRUNDFOS
99371955
New product
5713828026590
Specifications
TECHNIQUES
Max head 80 dm
TF class 110
Approvals on the nameplate VDE, CE, EAC
Template B.

MATERIALS
Body Pump Cast iron, EN-GJL-150, ASTM A48-150B
Impeller PES 30% GF

INSTALLATION
Ambient temperature limit 0 .. 40 ° C
Max operating pressure 10 bar
Pipe connection G 11/2
Operating pressure PN 10
Wheelbase 130 mm

LIQUID
Pumped liquid Waterfall
Liquid temperature range 2 .. 110 ° C
Liquid temperature during operation 60 ° C
Density 983.2 kg / m³

ELECTRICAL DATA
Ingr. pot. - P1 3 .. 50 W
Network frequency 50/60 Hz
Rated voltage [V] 1 x 230 V
Maximum current consumption 0.04 .. 0.44 A
Protection class (IEC 34-5) X4D
Insulation class (IEC 85) F.
Integrated motor protection NOBODY
Thermal protection ELEC

OTHER
Energy (EEI) 0.18
Net weight 1.85 kg
Gross weight 2.01 kg
Packaging volume 0.004 m³
Automatic nighttime reduced night-time operation, included
Pos. Control box 6H
Danish VVS no 380474180
N. RSK Swedish 5758791
Country of origin DK
Convention rate n. 84137030
curves
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DRAWINGS
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