SFA Sanipump VX 65 Serie Manual De Funcionamiento página 97

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6 Commissioning/Start-up/Shutdown
CAUTION
Start-up against a closed shut-off element
Increased vibrations!
Damage to mechanical seals and bearings!
▷ Never operate the pump set against a closed shut-off element.
1. Fully open the discharge line shut-off element, if any.
2. Start up the pump set.
6.2 Operating limits
DANGER
Non-compliance with operating limits
Damage to the pump set!
▷ Comply with the operating data specified in the data sheet.
▷ Never operate the pump set at ambient or fluid temperatures exceeding those
specified in the data sheet or on the name plate.
▷ Never operate the pump set outside the limits specified below.
6.2.1 Frequency of starts
CAUTION
Excessive frequency of starts
Risk of damage to the motor!
▷ Never exceed the specified frequency of starts.
To prevent high temperature increases in the motor and excessive loads on the
motor, sealing elements and bearings, do not exceed the following number of starts
per hour.
Table 13: Frequency of starts
Motor rating
[kW]
≤ 7,5
> 7,5
These values apply to mains start-up (DOL, autotransformer, soft starter). This
limitation does not apply to operation on a frequency inverter.
6.2.2 Operation on the power supply network
DANGER
Permissible tolerances for operation on the power supply network exceeded
Explosion hazard!
▷ Never operate an explosion-proof pump (set) outside the specified range.
The mains voltage and mains frequency may fluctuate around the rated values as
defined for zone B to IEC 60034-1. The voltage difference between the individual
phases must not exceed 1 %.
Sanipump VX 65/80
Maximum frequency of starts
[Starts/hour]
30
10