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Grundfos ALPHA1 model B User Manual

Grundfos ALPHA1 model B
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English (GB)
9
4.2 Dismantling the plug
5. Starting up the product
5.1 Before startup
Do not start the pump until the system has been filled with liquid
and vented. Make sure that the required minimum inlet pressure
is available at the pump inlet. See section 9. Technical data. For
instructions on how to vent the system, see sections 5.3 Venting
the pump and 5.4 Venting the heating system.
5.2 First startup
After installing the product, see section 3. Installing the product,
turn on the power supply. The light in the operating panel shows
that the power supply has been switched on. See fig. 7.
The pump is factory set to intermediate proportional-pressure
curve, PP2.
Fig. 7 Starting the pump
Step Action Illustration
1
Loosen the cable
gland and remove it
from the plug.
TM05 5545 3812
2
Pull off the plug
cover while pressing
on both sides.
TM05 5546 3812
3
Add the conductor
guide plate to loosen
all three cable
conductors at the
same time.
If the guide plate is
missing, then loosen
the cable conductors
one by one by
pressing a
screwdriver gently
into the terminal clip.
TM05 5547 3812
4
The plug has now
been removed from
the power supply
plug.
TM05 5548 3812
TM06 9094 4317
1 x 230 V ± 10 %
∽ 50/60 Hz
0/O
1/On

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Grundfos ALPHA1 model B Specifications

General IconGeneral
Maximum Operating Pressure10 bar
Supply Voltage230 V
Enclosure ClassIP42
Insulation ClassF
Pump TypeCirculator
Port-to-port length180 mm

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