Switching The Pump Set Off After Testing; Operating Limits; Ambient Temperature; Frequency Of Starts - KSB Etanorm FXV Installation & Operating Manual

30 of 62
6 Commissioning/Start-up/Shutdown
No leakage:
Immediately switch off pump set!
Loosen the gland follower and repeat commissioning.
Checking the leakage
After the leakage has been adjusted, monitor the leakage for about two hours at
maximum fluid temperature.
Check that enough leakage occurs at the gland packing at minimum fluid pressure.

6.1.6 Switching the pump set off after testing

1. Close the shut-off element in the test pipe.
2. Switch off the motor.
Make sure it runs down smoothly to a standstill.
3. Set the selector switch to automatic.

6.2 Operating limits

WARNING
Non-compliance with operating limits for pressure and temperature
Risk of injuries by escaping fluid!
▷ Comply with the operating range indicated in the documentation.
▷ Avoid prolonged operation against a closed shut-off element.
▷ Never operate the pump at temperatures exceeding those specified in the data
sheet or on the name plate unless the written consent of the manufacturer has
been obtained.

6.2.1 Ambient temperature

CAUTION
Operation outside the permissible ambient temperature
Damage to the pump (set)!
▷ Observe the specified limits for permissible ambient temperatures.
Observe the following parameters and values during operation:
Table 8: Permissible ambient temperatures
Permissible ambient temperature
Maximum
Minimum

6.2.2 Frequency of starts

CAUTION
Re-starting while motor is still running down
Damage to the pump (set)!
▷ Do not re-start the pump set before the pump rotor has come to a standstill.
The frequency of starts is usually determined by the maximum temperature increase
of the motor. This largely depends on the power reserves of the motor in steady-
state operation and on the starting conditions (DOL, star-delta, moments of inertia,
etc). If the start-ups are evenly spaced over the period indicated, the following limits
serve as orientation for start-up with the discharge-side gate valve slightly open: The
frequency of starts shall not exceed 6 start-ups per hour (h).
Etanorm FXV
Value
50 °C
See data sheet.