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Grundfos ALPHA1 L Series User Manual

Grundfos ALPHA1 L Series
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English (GB)
3
2. Receiving the product
2.1 Inspecting the product
Check that the product received is in accordance with the order.
Check that the voltage and frequency of the product match
voltage and frequency of the installation site. See section
5.4.1 Nameplate.
2.2 Scope of delivery
The box contains the following items:
ALPHA1 L pump
installer plug
two gaskets
quick guide.
3. Installing the product
3.1 Mechanical installation
3.1.1 Mounting the product
1. The arrows on the pump housing indicate the flow direction
through the pump. See fig. 1.
2. Fit the two gaskets supplied with the pump when you mount
the pump in the pipe. Install the pump with a horizontal motor
shaft within ± 5 °. See fig. 2. See also section 3.3 Control box
positions.
3. Tighten the fittings. See fig. 3.
Fig. 1 Flow direction
Fig. 2 Pump installation
Fig. 3 Tightening the fittings
CAUTION
Crushing of feet
Minor or moderate personal injury
- Wear safety shoes when opening the box and
handling the product.
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply before starting any
work on the product. Make sure that the power
supply cannot be accidentally switched on.
CAUTION
Crushing of feet
Minor or moderate personal injury
- Wear safety shoes when opening the box and
handling the product.
Installation must be carried out by trained persons in
accordance with local regulations.
The pump must always be installed with a horizontal
motor shaft within ± 5 °.
The mechanical installation must be carried out by
trained persons in accordance with local regulations.
TM06 8535 0918TM06 8536 0918TM06 8537 0918

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Grundfos ALPHA1 L Series Specifications

General IconGeneral
Pump TypeCirculator
SeriesALPHA1 L
Max Head6 m
Voltage230 V
Frequency50/60 Hz
Liquid Temperature Range2°C to 110°C
Max Operating Pressure10 bar
Insulation ClassF
Enclosure ClassIP42
ApplicationHeating systems
Control ModesProportional pressure, constant pressure
EEI0.20
MaterialCast iron
Power InputVaries by model (e.g., ALPHA1 L 25-40 180: 3-22 W)
Pipe ConnectionG 1 1/2

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