6 Commissioning/Start-up/Shutdown
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Hya-Duo D FL
6.1.3 Setting the dry running protection device
NOTE
Dry running protection is only enabled in manual mode and test run mode. In
automatic mode an alarm message is indicated by the (red) indicator lamp; the
pump sets continue to run.
If the digital input for dry running protection in the switchgear and controlgear
assembly opens, the control system stops the fire-fighting system after approximately
10 seconds (factory setting). The stop delay of 5 to 100 seconds can be set at the
timer.
ü
The dry running protection device has been properly connected.
(
ü
The original operating manual of the timer is on hand.
1. Set the timer in accordance with the supplied original operating manual.
6.1.4 Start-up
NOTE
The fire-fighting system is factory-set to the values indicated on the name plate.
ü
The fire-fighting system has been primed and vented.
1. Switch on the master switch.
ð
The green LED lights up and signals the system’s readiness for operation.
6.1.5 Checklist for commissioning/start-up
Table 6:
Checklist
Steps to be
carried out
Action
Done
1
Read the operating manual.
2
Compare the power supply data against the name plate data.
3
Check/measure the earthing system.
4
Check the mechanical connection to the water supply system. Re-tighten the flanges and pipe
unions.
5
Prime and vent the fire-fighting system from the inlet side.
6
Check the inlet pressure.
7
Check whether all cables are firmly connected to the terminals inside the control unit.
8
Compare the set values of the motor protection switches with the rating plate data; if
required, re-adjust.
9
Check the start pressure and stop pressure; re-adjust if necessary.
10
Test the proper function of the dry running protection equipment. If not fitted, make a
relevant note in the commissioning report.
11
After the pump set has been running for 5 to 10 minutes, vent it again.
12
Set all switches to automatic.
13
Check the pre-charge pressure.
14
Enter any deviations from the name plate or order documentation in the commissioning
report.
15
Complete the commissioning report together with the operator / user and instruct the
operator / user as to the function of the system.
