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7.6
Self-priming operation
8
Commissioning
8.1
Filling and starting
30
Commissioning
Working pressure (bar)
5
5.5
Inflation (Fig. 7)
ƒ
Remove the screw,
ƒ
get a compressor,
ƒ
connect the compressor pipe to the filling valve,
ƒ
inflate the expansion tank to the desired pressure.
CAUTION
Risk of material damage
The pump is set to self-priming operation in the factory. If proper load operation is
guaranteed or the supply is already pressurised, you can turn off the automatic priming
function by turning the lever (Fig. 5) to the vertical position.
ƒ
Unscrew and remove the drainage screw. Risk of water leakage.
ƒ
Move the red lever into the vertical position to turn off the automatic self-priming
operation.
ƒ
Screw the drainage screw back on. Refill with water
Filling and starting
WARNING
Qualified personnel only.
CAUTION
Risk of damaging the pump
Never run the Wilo-Isar BOOST5 dry in order to prevent damage to the mechanical
seal.
Load operation (Fig. 4a)
ƒ
Open all the valves to fill the pump with water.
ƒ
Connect the plug to the mains
ƒ
Set the change-over switch to "I"
ƒ
Press the button to start the Wilo-Isar BOOST5
Suction operation (Fig. 4b)
ƒ
Unscrew and remove the filler screw and drainage screw.
ƒ
Pour around 1.5 litres of water until it comes out of the aeration hole (Fig. 6).
ƒ
Screw the filler screw and snifter screw back on.
ƒ
Open the water valve.
ƒ
Connect the plug to the mains
ƒ
Set the change-over switch to "I"
ƒ
Press and hold the buttons at the same time for 5 seconds.
Wilo-Isar BOOST5 enters priming mode.
ƒ
Press the On/Off switch on the control panel to start priming.
NOTICE
The priming process lasts no longer than 5 minutes. At the end of each minute,
Wilo-Isar BOOST5 stops the electric pump automatically for 5 seconds, then restarts
it. And so on until Wilo-Isar BOOST5 is primed. During this process, the LEDs will
continue to flash. The priming stage may be brought to a close by timeout
Inflation pressure (bar)
3.5
4
WILO SE 02/2021
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