Grundfos 98091786, Installation And Operating Instructions Manual

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English (GB)
4
3.1 Mechanical installation
3.1.1 Mounting the product
The arrows on the pump housing indicate the flow direction
through the pump. See fig.
1 (A).
1. Fit the two gaskets supplied with the pump when you mount
the pump in the pipe. See fig. 1 (B).
2. Install the pump with a horizontal motor shaft within ± 5 °. See
fig. 1 (C). See also section 3.2 Pump positions .
3. Tighten the fittings.
Fig. 1 Mounting ALPHA3
3.2 Pump positions
Always install the pump with a horizontal motor shaft within ± 5 °.
• Pump installed correctly in a vertical pipe. See fig.
2 (A).
• Pump installed correctly in a horizontal pipe. See fig. 2 (B).
Do not install the pump with a vertical motor shaft. See fig. 2 (C
and D).
Fig. 2 Control box positions
3.3 Control box positions
3.3.1 Positioning of the control box in heating systems
You can position the control box in position 3, 6 and 9 o'clock.
See fig.
3 .
Fig. 3 Control box positions, heating systems
TM0
7
1
1
93
11
1
8
T
M
07
1
11
6 02
1
8
TM0
7
1
1
21
02
18
A B
CC