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General| Product Name | Grundfos ALPHA2 25-40 130 |
|---|---|
| Category | Water Pump |
| Type | Circulator Pump |
| Max Flow Rate | 2.5 m³/h |
| Installation Length | 130 mm |
| Power Consumption | 3-22 W |
| Voltage | 230 V |
| Frequency | 50/60 Hz |
| Max Operating Pressure | 10 bar |
| Ambient Temperature | 0°C to 40°C |
| Protection Class | IP42 |
| Material | Cast Iron |
| Weight | 2.1 kg |
| Max Head | 4 m |
| Energy Efficiency Index | ≤ 0.20 |
| Liquid Temperature Range | 2°C to 95°C |
Details on how to physically install the pump, including mounting and gaskets.
Guidance on positioning the control box for different system types.
Control box positioning for heating and domestic hot-water systems.
Control box positioning for air-conditioning and cold-water systems.
Specific control box positioning requirements for ALPHA SOLAR models.
Detailed steps for assembling the power supply plug and cable.
Instructions for safely disassembling the power supply plug.
Electrical connection procedures specific to ALPHA SOLAR.
Connecting the ALPHA SOLAR pump to the power supply.
Connecting control signals for the ALPHA SOLAR pump.
Prerequisites and checks before starting the pump for the first time.
Procedure for venting air from the pump and system.
Steps to vent air from the heating system.
Initial power-on procedure and factory settings.
Identification and description of the pump's control panel components.
Explanation of the information shown on the pump display.
Description of different pump settings and their applications.
Recommended and alternative settings for two-pipe heating systems.
Recommended and alternative settings for one-pipe heating systems.
Recommended settings for underfloor heating systems.
Recommended settings for domestic hot-water systems.
Relation between pump setting and pump performance curves.
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