Grundfos MAGNA1 Series User Manual

English (GB)
13
3.5 Changing the control box position
Fig. 14 Insulation of pump housing and pipework
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 vapour.
Step Action Illustration
1
Loosen the screw in the clamp
holding the pump head and
pump housing together.
Warning: If the screw is
loosened too much, the pump
head will be completely
disconnected from the pump
housing.
TM05 2867 0612
2
Carefully rotate the pump head
to the desired position.
If the pump head is stuck,
loosen it with a light blow of a
rubber mallet.
TM05 5526 3812
3
Place the control box in
horizontal position so that the
Grundfos logo is in vertical
position. The motor shaft must
be horizontal.
TM05 5527 3812
4
Due to the drain hole in the
stator housing, position the gap
of the clamp as shown in step
4a, 4b, 4c, 4d or 4e.
TM05 2870 0612
4a
Flanged single-head pump.
Position the clamp so that the
gap points towards the arrow.
It can be in position 3 or
9o’clock.
TM05 2918 0612 - TM05 2871 0612
4b
Flanged single-head pump.
Note: The gap of the clamp can
also be in position 6 o’clock for
the following pump sizes:
• DN 65
• DN 80
• DN 100.
TM05 2899 1912
4c
Twin-head pump.
Position the clamps so that the
gaps point towards the arrows.
They can be in position 3 or
9o’clock.
TM05 2917 0612 - TM05 2873 0612
4d
Twin-head pump.
Note: The gap of the clamp can
also be in position 6 o’clock for
the following pump sizes:
• DN 65
• DN 80
• DN 100.
TM05 2897 1912
4e
Threaded single-head pump.
The gap of the clamp can be in
position 3, 6, 9 or 12 o’clock.
TM05 5528 3812
5
Fit and tighten the screw
holding the clamp to 8 ± 1 Nm.
Note: Do not retighten the
screw if condensed water is
dripping from the clamp.
TM05 2872 0612
6
Fit the insulating shells.
Note: Insulating shells for
pumps in air-conditioning and
cooling systems must be
ordered separately.
TM05 5529 3812
Caution
Do not insulate the control box or cover the
control panel.
TM05 5549 3812

Grundfos MAGNA1 Series Specifications

General

Insulation Class	F
Type	Circulator pump
Control Panel Position	Integrated
Series	MAGNA1
Weight	Varies by model
Power Supply	3 x 380-480 V, 50/60 Hz
Pump Housing	Cast iron
Connection Type	Flanged
Voltage	380-480 V
Material	Cast iron, stainless steel
Temperature Range	-10°C to +110°C
Ambient Temperature Range	0°C to +40°C