Installation Depth; Power Supply; Power Cable Type - Grundfos SP Instrucciones De Instalación Y Funcionamiento

6.3.4 Grundfos submersible motors
MMS 6000, MMS 8000, MMS 10000 and
MMS 12000
Filling procedure:
1. Place the motor at a 45 ° angle with the top
of the motor upwards. See fig. 5.
2. Unscrew the plug A and place a funnel in the
hole.
3. Pour tap water into the motor until the motor
liquid inside the motor starts running out at
A.
Do not use motor liquid as it
Caution
contains oil.
4. Remove the funnel and refit the plug A.
Before fitting the motor to a pump
after a long period of storage,
Caution
lubricate the shaft seal by adding a
few drops of water and turning the
shaft.
The submersible pump is now ready for
installation.
A
Fig. 5 Motor position during filling - MMS
8

6.3.5 Installation depth

Make sure that the installation depth of the
pump will always be at least (5) five to (10) ten
feet (1.5 to 3 m) below the maximum draw-down
level of the well. For flow rates exceeding
100 gpm (22.7 m
curves for recommended minimum
submergence.
Never install the pump so that the bottom of the
motor is lower than the top of the well screen or
within five feet of the well bottom.
If the pump is to be installed in a lake, pond,
tank or large diameter well, make sure that the
water velocity passing over the motor is
sufficient to ensure proper motor cooling.
The minimum recommended water flow rates
ensuring proper cooling are listed in
section
for submersible motors

6.3.6 Power supply

Check the motor voltage, phase number and
frequency indicated on the motor nameplate
against the actual power supply.

6.3.7 Power cable type

The power cable used between the pump and
control box or control panel should be approved
for submersible pump applications.
Conductors may be solid or stranded. The cable
may consist of individually insulated conductors
twisted together, insulated conductors molded
side by side in one flat cable or insulated
conductors with a round overall jacket.
The conductor insulation should be type RW,
RUW, TW, TWU or equivalent and must be
suitable for use with submersible pumps.
45°
An equivalent Canadian Standards Association
certified cable may also be used.
See section
selection chart (60 Hz)
recommended cable lengths.
3
/h), refer to performance
10.1 Minimum water flow requirements
on page 24.
10.4 Submersible drop cable
on page 26 for