English (GB)
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8.4 Checking the function
In connection with commissioning, perform a final test run
according to the standard applying to the pump set:
1. Activate the automatic startup command by lowering the
pressure in the discharge pipe with a closed fuel valve.
2. Lower the pressure by opening the isolating valve of the test
pipe.
Every starting cycle consists of a starting phase followed by a
pause. A failure warning activates after six failed start attempts.
When the fuel valve has been opened and the fault indication has
been removed, the pump should start properly.
9. Operating the controller
See installation and operating instructions for the controller.
9.1 Shaft seal run-in
The pumped liquid lubricates the seal faces, meaning that there
may be a certain amount of leakage from the shaft seal.
When the pump is started for the first time, or when a new shaft
seal is installed, a certain run-in period is required before the
leakage is reduced to an acceptable level. The time required for
this depends on the operating conditions, i.e. every time the
operating conditions change, a new run-in period will be started.
Under normal conditions, the leaking liquid will evaporate. As a
result, no leakage will be detected.
10. Operation
Detailed operation instructions are described in the installation
and operating instructions for the controller.
10.1 Alarm indicators
The most important operating and alarm indications are shown
via indicator lights and/or the display of the controller.
See installation and operating instructions for the controller.
If the controller has outputs for connection to a building
management system, you can monitor the pump set remotely.
To remove any faults, see section
The following four operating modes are possible:
10.2 Automatic operation
Once you have installed and commissioned the pump set
according to the instructions, no further operation is necessary.
The pump set works automatically and switches itself on as soon
as water is taken from the sprinkler system and the pressure
switch thus detects a pressure drop.
You can stop the pump set manually via the controller.
10.3 Manual operation
You can also start and stop the pump set manually for a
functional test, for restarting or after service work.
10.4 Emergency operation
If the diesel engine does not start up in automatic operation after
six start attempts, the automatic operation is blocked. You can
start the pump set manually via the controller.
10.5 Weekly test run
Test the function of the pump set during a test run. See the
standard applying to the pump set.
11. Shutdown
1. Close the isolating valve on the discharge side.
2. Close the isolating valve on the suction side.
3. Switch off the power supply via the controller.
Additional procedure for pump set with diesel engine
1. Close the fuel valve on the fuel tank.
2. Disconnect the positive pole first and then the negative pole of
the batteries.
We recommend that you drain the fuel into a suitable container.
Note
This section applies to pump sets with diesel
engine.
Note
Observe the safety instructions in section
8. Commissioning and its subsections, as well as
in the installation and operating instructions for
the individual components.
Note
See also installation and operating instructions
for the controller and diesel engine.
Note
The pump set will not be shut down in case of
disruptions.
Caution
Do not leave the pump room during manual
operation. Observe all operating and fault
indications as the pump set will not stop
automatically in case of fault (e.g. too high
cooling water temperature or too low oil
pressure).
Note
This function is only available for pump sets with
diesel engine.
Caution
Do not leave the pump room during manual
operation. Observe all operating and fault
indications as the pump set will not stop
automatically in case of fault (e.g. too high
cooling water temperature or too low oil
pressure).
Note
This section applies to the complete pump set.
See also installation and operating instructions
for the controller and diesel engine.
Note
Shut down is only possible when the pump is not
running. If the pump is running, stop it via the
controller.
Summary of Contents for Fire NKF Series
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