Operating The Product; Minimum Flow Rate - Grundfos SP Series Installation And Operating Instructions Manual

8. Operating the product

Check the pump and system periodically for water quantity,
pressure, drawdown, periods of cycling and operation of controls.
Related information
9. Troubleshooting
8.1.1 Frequency of starts and stops
Motor type
MS402
MS4000
MS6000
MS6000P
MMS6
MMS8000
MMS10000
22
Number of starts
Minimum 1 per year.
Maximum 100 per hour.
Maximum 300 per day.
Minimum 1 per year.
Maximum 100 per hour.
Maximum 300 per day.
Minimum 1 per year.
Maximum 30 per hour.
Maximum 300 per day.
Minimum 1 per year.
Maximum 120 per hour.
Maximum 360 per day.
Minimum 1 per year.
Maximum 10 per hour.
Maximum 70 per day.
Minimum 1 per year is.
Maximum 8 per hour.
Maximum 60 per day.
Minimum 1 per year is.
Maximum 6 per hour.
Maximum 50 per day.

8.1 Minimum flow rate

To ensure the adequate cooling of the motor, do not set the pump
flow rate so low that the cooling requirements specified in
section cannot be met.
Related information
6.2.2 Pumped liquids