Grundfos ALPHA2 GO 25-40 180 electronic heating circulation pump - Bluetooth - 4 m 2.7 m³/h
- Electronic circulation pump for heating systems with AUTOADAPT function; maximum head of 4 m.
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Grundfos ALPHA2 GO 25-40 180 (93074225) - Intelligent circulation pump for heating systems
Grundfos ALPHA2 GO 25-40 180 is a new-generation energy-efficient circulation pump with intelligent control and communication functions with apLikation Grundfos GO. Designed for modern heating and underfloor installations, it provides exceptional efficiency, reliability and quiet operation. The ECM motor used and the AUTOADAPT algorithm automatically adjust the output to the current system demand, reducing energy consumption by up to 80%.
- ECM motor with energy efficiency class EEI ≤ 0.16
- Maximum lift height: 4 m
- Maximum flow rate: 2.7 m³/h
- Control modes: AUTOADAPT, proportional pressure, constant pressure and characteristic curve
- Integration with apLication Grundfos GO via Bluetooth
Product description
The ALPHA2 GO 25-40 180 was developed for installers and end users looking for a technologically advanced yet easy-to-use circulating pump. The built-in Bluetooth module enables wireless communication with apLikation Grundfos GO, offering remote control, performance analysis and fault diagnostics. The AUTOADAPT function automatically adjusts the pump's operating curve to suit varying system conditions, ensuring maximum efficiency with minimum power consumption. The pump is also equipped with protective functions such as dry-running protection, automatic venting and impeller blockage detection.
Features
The pump supports control modes: AUTOADAPT, fixed pressure, proportional pressure and three fixed characteristic curves. In addition, it has PWM modes (input and output) to work with boiler automation. The Smart Start system eliminates blockages caused by deposits and air in the system, and quiet operation (<25 dB) guarantees comfort. The unit is compatible with Grundfos GO RepLace accessories, making it easy to replace older UPS and ALPHA models.
Technical data
| Category | Parameter |
|---|---|
| Model | Grundfos ALPHA2 GO 25-40 180 |
| Catalog number | 93074225 |
| Pump type | Electronic circulating pump |
| Power supply | 1 × 220-240 V, 50/60 Hz |
| Power consumption | 3-21 W |
| Rated current | 0.26 A |
| Energy class | EEI ≤ 0.16 |
| Headroom | 4,0 m |
| Maximum flow | 2.7 m³/h |
| Insulation class | F |
| Degree of protection | IP44 |
| Medium temperature | 2°C to +110°C |
| Ambient temperature | up to 55°C |
| Operating pressure | 1.0 MPa (10 bar) |
| Minimum inlet pressure | 0.05 bar (75°C) / 0.5 bar (95°C) / 1.08 bar (110°C) |
| Noise level | < 25 dB(A) |
| Type of liquid | Water or glycol solutions (up to 50%) |
| Body material | Cast iron EN-GJL-150 |
| Impeller | PES composite with glass fiber |
| Shaft and bearings | Ceramic |
| Seals | EPDM |
| Hydraulic connections | Thread G 1½" (DN25) |
| Installation length | 180 mm |
| Weight | 1.89 kg |
| Certifications | CE, VDE |
Technical data source: data sheet for ALPHA2 GO 25-40 180 (93074225).Link
FAQ - Frequently asked questions
- What modes of operation does the pump support? AUTOADAPT, constant pressure, proportional pressure and constant curve mode.
- Does the pump have Bluetooth? Yes, for communication with apLication Grundfos GO.
- Does the pump have an automatic venting function? Yes, built-in air detection and removal system.
- What are the operating parameters? 4 m head, 2.7 m³/h flow rate.
- What is the supply voltage? 230 V AC.
- Does it have dry-run protection? Yes, automatic detection and restart.
- What software does it work with? Grundfos GO RepLace, Grundfos GO Remote.
- Is the pump quiet? Yes, noise level less than 25 dB(A).
- What are the hydraulic connections? G 1½", installation length 180 mm.
- What are the materials of construction? EN-GJL-150 cast iron, ceramic shaft and bearings, EPDM seals.
Summary
Grundfos ALPHA2 GO 25-40 180 is a smart circulation pump with the highest energy efficiency in its class. With its AUTOADAPT function, Bluetooth communication and quiet operation, it is ideal for modern heating systems. It combines low energy consumption, long life and simple setup - all in a compact, robust housing.