Changing The Control Box Position - Grundfos MAGNA1 Installation And Operating Instructions Manual

4.5 Changing the control box position

Warning
The warning symbol on the clamp holding the
pump head and pump housing together indicates
that there is a risk of personal injury. See specific
warnings below.
Warning
When loosening the clamp, do not drop the pump
head.
Warning
Risk of escaping vapor.
Step Action
Loosen the screw in the clamp
holding the pump head and
pump housing together.
Warning: If the screw is
1
loosened too much, the pump
head will be completely
disconnected from the pump
housing.
Carefully rotate the pump head
to the desired position.
2 If the pump head is stuck,
loosen it with a light blow of a
rubber mallet.
Place the control box in
horizontal position so that the
3 Grundfos logo is in vertical
position. The motor shaft must
be horizontal.
Due to the drain hole in the
stator housing, position the gap
4
of the clamp as shown in step
4a, 4b, 4c, or 4d.
Flanged single-head pump.
Position the clamp so that the
4a gap points towards the arrow.
It can be in position 3 or 9
o'clock.
Step
4b
4c
Illustration
4d
5
6
Caution
Fig. 12 Insulation of pump housing and pipework
Action
Flanged single-head pump.
Note: The gap of the clamp can
also be in position 6 o'clock for
the following pump sizes:
• MAGNA1 65-XX
• MAGNA1 80-XX
• MAGNA1 100-XX.
Twin-head pump. Position the
clamps so that the gaps point
towards the arrows. They can
be in position 3 or 9 o'clock.
Threaded single-head pump.
The gap of the clamp can be in
position 3, 6, 9 or 12 o'clock.
Fit and tighten the screw holding
the clamp to:
6 ± 0.7 ft-lbs
(8 ± 1 Nm).
Note: Do not retighten the
screw if condensed water is
dripping from the clamp.
Fit the insulating shells.
Note: For air conditioning and
cooling systems, a silicone
sealant must be applied inside
the insulation shell to eliminate
all air gaps and prevent
condensation between the
pump housing and insulation
shell. Alternatively, the pump
may be insulated manually in
accordance with standard
insulation practices for cooling
applications.
If insulating the pump manually, do not insulate
the control box or cover the control panel.
Illustration
9