Dutypoint MiniBreak Руководство по эксплуатации и техническому обслуживанию - Страница 5
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sound.
3.
Check the pump has been fully evacuated of all air by removing the bleed screw of the pump
and allow water to escape until no air is present, replace the bleed screw.
4.
Open discharge valve and power the product, the pump should then start to run and push all
air out of the discharge system, when free of air close the discharge valve and the flow will
stop and the pump will switch off after approximately 10 seconds.
Operation
When a draw off point connected to the system is opened the pressure will start to fall and the pump will start
to pressurise the system. The pump will continue to run until demand ceases completely and flow has stopped
(< 3l/m) the pump will run for approximately 10 seconds and will then shutdown.
The pressure will now be sitting at the pump closed valve head value.
Lack of water
If the pump controller senses a lack of water the pump will be stopped automatically after approximately 10
seconds and the red failure light will be illuminated.
If the water supply comes back online and a discharge is open the pump controller will automatically reset and
start the pump.
If the water supply has been reinstated and the pump has not started automatically the reset button can be
operated which will cause the pump to run for approximately 10 seconds and prime the system, if successful the
pump will then operate normally.
Maintenance
Routine check (6 monthly intervals)
1.
Check the pump produces the correct pressure.
2.
Check that the pump operates without undue noise or vibration.
3.
Check the break tank is clean and that the correct water level has been maintained.
4.
Check that all screws are tight on electrical components.
5.
Check that the earth connections are tight and making good contact.
Pump removal
Isolate power supply feeding pump set.
Isolate water inlet feeding pump set.
Open an outlet to release system pressure
Isolate the valve located on each flexible connector and remove the flexible from the pump suction and
discharge ports, the pump can now be un-bolted from the base and pulled forward.
The electrical cable can now be removed from the pump terminal box.
The new pump can now be fitted reversing the above procedure.
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