6 Commissioning/Start-up/Shutdown
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Hya-Duo D FL
Have commissioning carried out by specialist KSB staff. Start up the duty system
before starting up the back-up system.
ü
The original operating manual of the pump set is on hand.
ü
The original operating manual of the pressure switch is on hand.
ü
The original operating manual of the timer on hand.
ü
The pipe unions between the pump set and the piping have been re-tightened.
ü
Flange connections have been firmly tightened.
ü
The cooling air inlet openings and cooling air outlet openings at the motor are
unobstructed.
ü
All shut-off valves are open.
ü
The pre-charge pressure of the accumulator has been checked.
(
ü
The minimum flow rate has been observed. (
1. Set the master switch to 0 and the manual-automatic selector switch to
automatic.
2. Provide connection to power supply.
3. Open the vent plugs at the pump set in accordance with the supplied original
operating manual of the pump set.
4. Slowly open the inlet-side valve and slowly prime the fire-fighting system until
the fluid to be handled escapes through the vent holes.
5. Close and slightly tighten the pump vent plugs.
6. Switch on the master switch.
7. Set the manual-automatic selector switch to manual. Check the direction of
rotation of the pump sets. Compare the direction of rotation to the arrow
indicating the direction of rotation on the motor. If the direction of rotation
does not match, interchange the phases at the motor terminal board.
8. Set the manual-automatic selector switch to automatic.
9. Slowly open the discharge-side valve. Check the set start-up pressure with a
pressure gauge. If necessary, adjust the start-up pressure in accordance with the
supplied original operating manual of the pressure switch.
10. Slowly close the discharge-side valve. Check the set stop pressure with a pressure
gauge. If necessary, adjust the stop pressure in accordance with the supplied
original operating manual of the pressure switch.
11. Slowly open the discharge-side valve.
12. Set the after-run time of the pump set to a value between 3 and 10 minutes
using the timer in accordance with the supplied original operating manual.
Observe the maximum permissible number of starts. (
13. When all pump sets are running, loosen the vent plugs again to let any
remaining air escape.
14. Tighten the vent plugs.
15. Check that the pump sets are running smoothly.
16. Close the discharge-side valve in order to verify whether the pump sets reach
the maximum shut-off head.
17. Open the discharge-side valve.
18. Set the time and duration of the functional check run in the switchgear and
controlgear assembly (first channel of the timer) in accordance with the supplied
original operating manual.
