Grundfos ALPHA Installation And Operating Instructions Manual page 10

2. Turn the pump head to the desired position.
You can turn the control box in steps of 90° if the flanges are in
standard position (F) and in steps of 180° if the flanges are in
flange rotated position (FR).
Flanges in standard position (F)
Flanges in flange rotated position (FR)
3. Insert and cross-tighten the screws.
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