Grundfos ALPHA2 GO Domestic Heating Circulator Pump
The Grundfos ALPHA2 GO is engineered for both standalone and integrated circulator applications in domestic heating systems, delivering enhanced comfort and energy savings for residents. For installers, this next-generation circulator simplifies commissioning, takes the guesswork out of achieving efficient systems with guided setup, and makes pump replacements quick and hassle-free through direct Bluetooth connectivity with the Grundfos GO app.
As an authorized Grundfos Water Pump Dealer in Dubai, we supply the complete ALPHA2 GO range with genuine warranty and technical support across the UAE.
Technical Specifications
| Feature | Specification |
|---|---|
| Max Flow* | 4.8 m³/h |
| Max Head* | 9 m |
| Max Power Input* | 90 W |
| Supply Voltage | 1 × 220-240 V, 50/60 Hz |
| Energy Efficiency Index (EEI) | ≤ 0.16 to 0.20* |
| Acoustic Sound Pressure Level (Lp) | < 25 dB(A) |
| Enclosure Class | IP44 / K-version: IPX4D |
| Pipe Connection* | G1, G1 1/2, G2 |
| Port to Port Length* | 130 mm, 180 mm |
| Ambient Temperature | 55°C / 70°C |
| Media Temperature* | -10°C to 110°C / -10°C to 75°C |
| Media Temperature (K-version)* | -20°C to 110°C / -20°C to 75°C |
*Depending on variant
Performance Curve Data
| Model | Max Head | Flow Range | Application |
|---|---|---|---|
| ALPHA2 GO xx-40 | 4 m | 0 – 3.5 m³/h | Small heating systems |
| ALPHA2 GO xx-60 | 6 m | 0 – 4.0 m³/h | Medium heating systems |
| ALPHA2 GO xx-75 | 7.5 m | 0 – 4.5 m³/h | Larger heating systems |
| ALPHA2 GO xx-90 | 9 m | 0 – 4.8 m³/h | Maximum performance requirements |
Key Features
Easy Replacement of Integrated UPM3 and UPM4 Circulators
The ALPHA2 GO connects directly to the Grundfos GO app, allowing it to mimic the performance of the integrated UPM3 and UPM4 circulators being replaced. This seamless integration eliminates compatibility concerns and ensures optimal system performance from the first moment of operation.
Guided Setup
By answering a few questions through the Grundfos GO app, guided setup ensures the correct control mode and setpoint are chosen, ensuring optimized comfort and reduced energy consumption. This intelligent commissioning process removes guesswork and delivers professional results every time.
Improved AUTOADAPT for Radiators and Underfloor Heating
AUTOADAPT continuously adapts to system demands for optimal comfort, low energy consumption, less wear and tear, and simple commissioning. This advanced technology monitors heating requirements in real-time and adjusts pump performance accordingly.
Air Detection and System Venting
The air detection feature allows the pump to detect air around the impeller. If air is detected, the pump will start to pulsate to effectively push air to the closest air removal device. This automatic venting capability saves installation time and prevents performance issues caused by trapped air.
Dry-Running Protection
The ALPHA2 GO will stop if dry-running is detected to prevent damage and avoid a breakdown. This built-in protection extends pump lifespan and reduces maintenance requirements.
Robust Startup
The non-magnetic shaft and bearings reduce the risk of blockages from dirt or magnetite while the bearing system helps prevent limescale build-up. If the pump does get blocked, the motor will continuously restart at the highest possible torque, overcoming resistance and restoring operation.
Easy Wiring
The ALPHA2 GO comes with a toolless connector which enables wiring to be done outside the pump. This innovative design simplifies electrical connections and speeds up installation time significantly.
Display Read-Out
An HMI display provides clear feedback on system performance, showing the circulator’s flow, head or power, making it easier to monitor and adjust settings for optimal efficiency.
Trend Data
Available through the Grundfos GO app, trend data allows users to track the circulator pump’s performance over time, identifying patterns in flow rate, pressure, temperature and on-cycle time for easier fault finding and preventive maintenance.
Benefits
| Benefit | Description |
|---|---|
| Fast Replacement | Quick pump exchanges with minimal system downtime |
| Simpler and More Accurate Commissioning | App-guided setup eliminates manual calculations |
| Energy Savings and Enhanced Comfort | Low EEI rating delivers efficient operation |
| Reduced Callbacks | Built-in protection features prevent common issues |
| Quicker and Easier Maintenance | Clear display and app connectivity simplify diagnostics |
Grundfos GO App Integration
The Grundfos GO app is a digital toolbox that helps installers work more efficiently with the ALPHA2 GO:
Direct Bluetooth Connection
The ALPHA2 GO connects directly to the Grundfos GO app via Bluetooth, enabling wireless configuration, monitoring, and troubleshooting without additional equipment.
Guided Setup Feature
- Configure the correct control mode automatically
- Set optimal setpoints based on system requirements
- Achieve greater comfort and energy efficiency
- Professional commissioning in minutes
Performance Monitoring
- Real-time flow, head, and power display
- Historical trend data analysis
- Pattern identification for fault finding
- Proactive maintenance scheduling
Available On:
- Google Play (Android devices)
- App Store (iOS devices)
Installation Flexibility
Pipe Connection Options
- G1 (1 inch)
- G1 1/2 (1.5 inch)
- G2 (2 inch)
Port-to-Port Lengths
- 130 mm (compact installations)
- 180 mm (standard installations)
Temperature Ranges
| Variant | Ambient Temperature | Media Temperature |
|---|---|---|
| Standard | Up to 55°C | -10°C to 110°C |
| High Ambient | Up to 70°C | -10°C to 75°C |
| K-version | Up to 55°C/70°C | -20°C to 110°C / -20°C to 75°C |
Applications
Domestic Heating Systems
- Radiator central heating circuits
- Underfloor heating circulation
- Combined radiator and underfloor systems
- Zoned heating applications
Integrated Boiler Applications
- Replacement of existing UPM3 circulators
- Replacement of UPM4 circulators
- Gas boiler heating circuits
- Oil boiler systems
- Condensing boiler applications
Standalone Installations
- Independent heating circuit circulation
- Secondary heating loops
- Heat pump circulation systems
Model Selection Guide
| Scenario | Recommended Model | Port-to-Port |
|---|---|---|
| Small villa, 1-3 radiators | ALPHA2 GO xx-40 | 130 mm |
| Medium home, 4-6 radiators | ALPHA2 GO xx-60 | 130/180 mm |
| Larger home, 7-10 radiators | ALPHA2 GO xx-75 | 180 mm |
| Large property, 10+ radiators | ALPHA2 GO xx-90 | 180 mm |
| Underfloor heating | ALPHA2 GO xx-40/60 | Application dependent |
| UPM3/UPM4 replacement | Match existing specs | Match existing length |
Why Choose ALPHA2 GO?
Ultra-Quiet Operation
Operating at less than 25 dB(A), the ALPHA2 GO runs near-silently, ensuring household comfort is never disturbed by pump noise—ideal for installations near living spaces.
Industry-Leading Energy Efficiency
With an Energy Efficiency Index as low as 0.16, ALPHA2 GO exceeds minimum efficiency requirements and delivers significant electricity savings over the pump’s lifetime.
Smart Connectivity
Direct Bluetooth connection to the Grundfos GO app provides modern convenience for installation, commissioning, monitoring, and troubleshooting—all from your smartphone.
Proven Reliability
Non-magnetic shaft and bearings combined with limescale-resistant design ensure long-term dependable operation even in challenging water conditions.
IP44/IPX4D Protection
Enclosure class IP44 (IPX4D for K-version) provides protection against solid objects and water splashing, suitable for typical boiler room and utility space installations.
Grundfos Accessories & Parts
Maintain optimal ALPHA2 GO performance with original components including union sets, insulation shells, cable connectors, replacement seals, gaskets, and mounting hardware. We stock accessories for all ALPHA2 GO variants to ensure your heating system operates at peak efficiency.
Select Grundfos Pumps
Browse our complete inventory of Grundfos ALPHA2 GO circulator pumps. As Grundfos Pump Suppliers in Dubai, we provide competitive pricing, technical consultation, and prompt delivery across Dubai, Sharjah, Abu Dhabi, Ajman, and all UAE locations.
Contact us for:
- Model selection for new installations
- UPM3/UPM4 replacement pump identification
- Grundfos GO app setup assistance
- Port-to-port length guidance
- Competitive quotations
- Delivery schedules
Intelligent Heating Circulation Made Simple
The Grundfos ALPHA2 GO transforms domestic heating circulation with advanced AUTOADAPT technology, direct Bluetooth connectivity, and intelligent guided setup. Whether commissioning a new heating system or replacing an aging UPM3/UPM4 circulator, ALPHA2 GO delivers the performance, efficiency, and ease of installation that modern domestic heating demands—with the added benefit of real-time monitoring and trend data analysis through the Grundfos GO app.