Grundfos MMS Series - Fitting of Submersible Drop Cable and Motor Cable; Frequency of Starts and Stops; Lowering the Pump; Maximum Installation Pressure

English (GB)
15
7.1 Fitting of submersible drop cable and
motor cable
Before fitting the motor cable to the motor, make
sure that the cable socket is clean and dry.
To ease fitting of the cable, lubricate the rubber parts
of the cable plug with non-conducting silicone paste.
Tighten the screws holding the cable to the torques
stated:
Connect the motor cable to the drop cable by use of
original Grundfos cable termination kits, such as
shrink tube type KM or cable termination kit type M0
to M4.
If necessary, shorten the motor cable to ensure that
it is always covered with pump medium prior to
making the cable jointing as described above.
7.2 Maximum installation pressure
7.3 Lowering the pump
Grundfos recommends checking the borehole by
means of an inside calliper before lowering the pump
to ensure unobstructed passage.
Lower the pump assembly carefully into the
borehole, taking care not to damage the motor cable
and the submersible drop cable.
7.4 Frequency of starts and stops
MS 402: 2.0 Nm
MS 4000: 3.0 Nm
MS 6000: 4.5 Nm
MMS6: 20 Nm
MMS 8000: 18 Nm
MMS 10000: 18 Nm
MMS 12000: 15 Nm.
MS 402: 150 mWC
MS 4000: 600 mWC
MS 6000: 600 mWC
MMS: 600 mWC.
Caution
Do not lower or lift by means of the motor
cable.
Motor type Number of starts
MS 402
• Minimum 1 per year is
recommended.
• Maximum 100 per hour.
• Maximum 300 per day.
MS 4000
• Minimum 1 per year is
recommended.
• Maximum 100 per hour.
• Maximum 300 per day.
MS 6000
• Minimum 1 per year is
recommended.
• Maximum 30 per hour.
• Maximum 300 per day.
MMS6
PVC
windings
• Minimum 1 per year is
recommended.
• Maximum 3 per hour.
• Maximum 40 per day.
PE/PA
windings
• Minimum 1 per year is
recommended.
• Maximum 10 per hour.
• Maximum 70 per day.
MMS 8000
PVC
windings
• Minimum 1 per year is
recommended.
• Maximum 3 per hour.
• Maximum 30 per day.
PE/PA
windings
• Minimum 1 per year is
recommended.
• Maximum 8 per hour.
• Maximum 60 per day.
MMS 10000
PVC
windings
• Minimum 1 per year is
recommended.
• Maximum 2 per hour.
• Maximum 20 per day.
PE/PA
windings
• Minimum 1 per year is
recommended.
• Maximum 6 per hour.
• Maximum 50 per day.
MMS 12000
PVC
windings
• Minimum 1 per year is
recommended.
• Maximum 2 per hour.
• Maximum 15 per day.
PE/PA
windings
• Minimum 1 per year is
recommended.
• Maximum 5 per hour.
• Maximum 40 per day.
www.motralec.com / service-commercial@motralec.com / 01.39.97.65.10