Grundfos ALPHA GO Domestic Heating Circulator Pumps
The Grundfos ALPHA GO range represents the next generation of domestic heating circulators, combining the strengths of the discontinued ALPHA1, ALPHA2, and ALPHA3 into just two future-ready models. Designed for both standalone and integrated circulator pump applications, ALPHA GO delivers enhanced comfort and energy savings for residents while simplifying commissioning, speeding up pump replacement, and eliminating sizing guesswork for installers.
As an authorized Grundfos Water Pump Dealer in Dubai, we supply the complete ALPHA GO range with genuine warranty and technical support across the UAE.
Technical Specifications
| Feature | ALPHA1 GO | ALPHA2 GO |
|---|---|---|
| Max Flow* | 3.9 m³/h | 4.8 m³/h |
| Max Head* | 8 m | 9 m |
| Max Power Input* | 60 W | 90 W |
| Supply Voltage | 1 × 220-240 V, 50/60 Hz | 1 × 220-240 V, 50/60 Hz |
| Energy Efficiency Index (EEI) | ≤ 0.20 | ≤ 0.16 to 0.20* |
| Acoustic Sound Pressure Level (Lp) | < 25 dB(A) | < 25 dB(A) |
| Enclosure Class | IP44 | IP44 / K-version: IPX4D |
| Pipe Connection* | G1, G1 1/2, G2 | G1, G1 1/2, G2 |
| Port to Port Length* | 130 mm, 180 mm | 130 mm, 180 mm |
| Ambient Temperature | 55°C / 70°C | 55°C / 70°C |
| Media Temperature | -10°C* to 110°C / -10°C* to 75°C | -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
Key Features & Benefits Comparison
| Feature | ALPHA1 GO | ALPHA2 GO |
|---|---|---|
| Easy replacement of integrated UPM3/4 circulator pumps | ● | |
| Improved AUTOADAPT for radiators and underfloor heating | ● | |
| Guided Setup for accurate commissioning | ● | |
| Easy replacement of integrated UPS circulator pumps | ● | |
| Easy replacement of standalone circulator pumps | ● | ● |
| Dry-run protection, robust startup, pump venting | ● | ● |
Model Range Overview
ALPHA1 GO 25-80 180
- Replaces most integrated UPS circulator pumps
- Ideal for straightforward, no-fuss replacements of older systems
- App-assisted setup via Grundfos GO ensures fast, accurate commissioning
ALPHA2 GO 25-75 180
- Replaces most integrated UPM3/UPM4 circulator pumps and majority of standalone circulator pumps
- The ideal choice for maximum energy savings and comfort
- Guided Setup for accurate commissioning
- Connects directly to Grundfos GO app via Bluetooth
FCI Signal Adapter
- Required in approximately 30% of UPM3/4 replacements
- Enables communication between pump and boiler control systems
Fewer Pumps, More Possibilities
The ALPHA GO range consolidates multiple discontinued models into just two versatile pumps:
| Previous Model | Status | Replacement |
|---|---|---|
| ALPHA1 | Discontinued | ALPHA1 GO |
| ALPHA2 | Discontinued | ALPHA2 GO |
| ALPHA3 | Discontinued | ALPHA2 GO |
With just two ALPHA GO variants and an FCI signal adapter, installers can replace almost 70% of integrated Grundfos circulator pumps and the majority of standalone circulator pumps—eliminating spare parts delays, overstocking, and selection problems.
Key Features & Benefits
Ultra-Quiet Operation
Both ALPHA1 GO and ALPHA2 GO operate at less than 25 dB(A), ensuring near-silent performance that won’t disturb household comfort. This makes them ideal for installations near living spaces.
High Energy Efficiency
With Energy Efficiency Index (EEI) ratings as low as 0.16, the ALPHA GO range delivers exceptional energy savings compared to older circulator technology, reducing electricity costs and environmental impact.
Improved AUTOADAPT Technology
ALPHA2 GO features enhanced AUTOADAPT functionality that automatically adjusts pump performance for both radiator heating systems and underfloor heating applications, optimizing comfort while minimizing energy consumption.
Robust Temperature Tolerance
Designed for demanding environments, ALPHA GO handles media temperatures from -10°C (or -20°C for K-versions) up to 110°C, with ambient temperature tolerance up to 70°C—suitable for challenging installation locations.
Built-In Protection Features
Both models include:
- Dry-run protection to prevent damage from operating without water
- Robust startup capability for reliable operation
- Automatic pump venting for air removal
Grundfos GO App Integration
Scan. Set. GO.
The Grundfos GO app transforms ALPHA GO installation and commissioning into a streamlined digital experience:
GO Replace Find the right pump for replacement by scanning or entering the existing pump details. The app identifies the correct ALPHA GO model and any required accessories.
Guided Setup Commission ALPHA GO installations quickly and accurately with step-by-step guidance:
- Configure the right control mode and setpoint
- Optimize system performance
- Achieve greater comfort and energy efficiency
Bluetooth Connectivity (ALPHA2 GO) ALPHA2 GO connects directly to the Grundfos GO app via Bluetooth, enabling wireless configuration and monitoring without additional equipment.
The Grundfos GO app is available for both iOS (App Store) and Android (Google Play) devices.
Replacement Compatibility
ALPHA1 GO Replaces:
- Integrated UPS circulator pumps
- Standalone circulator pumps in older heating systems
- Basic fixed-speed and multi-speed circulators
ALPHA2 GO Replaces:
- Integrated UPM3 circulator pumps
- Integrated UPM4 circulator pumps
- Standalone circulator pumps requiring variable speed
- Previous ALPHA2 and ALPHA3 models
Installation Flexibility
Pipe Connections:
- G1 (1 inch)
- G1 1/2 (1.5 inch)
- G2 (2 inch)
Port-to-Port Lengths:
- 130 mm
- 180 mm
Mounting Orientation: Flexible installation positions accommodate various piping configurations and space constraints.
Applications
Domestic Heating Systems
- Radiator central heating
- Underfloor heating systems
- Combined radiator and underfloor systems
Hot Water Circulation
- Domestic hot water recirculation
- Solar thermal systems (within temperature limits)
Heat Pump Systems
- Air source heat pump circulation
- Ground source heat pump systems
Boiler Integration
- Gas boiler heating circuits
- Oil boiler systems
- Condensing boiler applications
Model Selection Guide
| Scenario | Recommended Model |
|---|---|
| Replacing old UPS pump | ALPHA1 GO |
| Replacing UPM3/UPM4 pump | ALPHA2 GO + FCI adapter (if needed) |
| New radiator heating system | ALPHA2 GO |
| Underfloor heating installation | ALPHA2 GO |
| Maximum energy savings priority | ALPHA2 GO |
| Simple replacement, older system | ALPHA1 GO |
| Bluetooth app control required | ALPHA2 GO |
Why Choose ALPHA GO?
Simplified Stock Management Two pump variants cover the majority of domestic heating circulator needs, reducing inventory complexity and ensuring faster response to service calls.
Future-Ready Design ALPHA GO replaces all previous ALPHA generations, ensuring long-term availability of compatible replacement parts and continued manufacturer support.
Energy Cost Reduction Low EEI ratings translate to significant electricity savings over the pump’s lifetime, with ALPHA2 GO delivering up to 20% better efficiency than minimum requirements.
Professional App Support Grundfos GO app eliminates guesswork from pump selection and commissioning, ensuring optimal system performance from day one.
Reliable Performance Built-in protection features and robust construction ensure dependable operation in everyday use and demanding environments alike.
Genuine Grundfos Accessories & Parts
Maintain optimal ALPHA GO performance with original components including FCI signal adapters, union sets, insulation shells, cable connectors, and replacement seals. We stock accessories for all ALPHA GO variants.
Select Grundfos Pumps
Browse our complete inventory of Grundfos ALPHA 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
- Replacement pump identification
- FCI adapter requirements
- Grundfos GO app support
- Competitive quotations
- Delivery schedules
One Range. Ready for Everything.
The Grundfos ALPHA GO range simplifies domestic heating circulation with just two highly efficient, app-connected pumps that replace almost the entire previous ALPHA lineup. Whether commissioning a new heating system or replacing an aging circulator, ALPHA GO delivers the performance, efficiency, and ease of installation that modern domestic heating demands.