Positional Requirements; Pump/Motor Diameter - Grundfos SP Series Installation And Operating Instructions Manual

5.1.3 Grundfos MMS6, MMS8000, MMS10000 and MMS12000
motors
Filling procedure:
Place the motor at a 45 ° angle with the top of the motor upwards.
See fig. 5.
1. Unscrew the plug (A) and place a funnel in the hole.
2. Pour tap water into the motor until the motor liquid inside the
motor starts running out at the plug (A).
Do not use motor liquid that contains oil.
3. Remove the funnel and refit the plug(A).
Before fitting the motor to a pump after a long period
of storage, lubricate the shaft seal by adding a few
drops of water and turning the shaft.
The submersible motor is now ready for assembly with the pump
and ready for installation.
A
Fig. 5 Motor position during filling - MMS
6
45°

5.2 Positional requirements

WARNING
Crushing of hands
Death or serious personal injury
- If the pump is to be installed in a position where it
is accessible, the coupling must be suitably
isolated from human touch. The pump can for
instance be built into a flow sleeve.
Depending on motor type, the pump can be installed either
vertically or horizontally. A complete list of motor types suitable
for horizontal installation is shown in section
for horizontal installation.
If the pump is installed horizontally, the outlet port must never fall
below the horizontal plane. See fig. 6.
Fig. 6 Positional requirements
If the pump is installed horizontally, e.g. in a tank, we recommend
that you fit it in a flow sleeve.
5.2.1 Motors suitable for horizontal installation
Output power
50 Hz
Motor
[kW]
MS All
MMS6 5.5 - 37
MMS8000 22-92
MMS10000 75-170
MMS12000 147-190
CAUTION
Hot surface
Minor or moderate personal injury
- If the pump is used for pumping hot liquids (40 to
60 °C), make sure that persons cannot come into
contact with the pump and the installation, e.g. by
installing a guard.
During operation, the suction interconnector of the
pump must always be completely submerged in the
liquid. Make sure that the NPSH values are fulfilled.

5.3 Pump/motor diameter

We recommend that you check the borehole with an inside
calliper to ensure unobstructed passage.
5.2.1 Motors suitable
Allowed
Not allowed
Output power
60 Hz
[kW]
All
5.5 - 37
22-92
75-170