Self-Priming Operation; Commissioning; Filling And Starting - Wilo -Isar BOOST5 Installation And Operating Instructions Manual

en
7.6

Self-priming operation

8

Commissioning

8.1

Filling and starting

18
Working pressure (bar)
3
3.5
4
4.5
5
5.5
Inflation (Fig. 7)
• Remove the screw,
• get a compressor,
• connect the compressor pipe to the filling valve,
• 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 guaran-
teed or the supply is already pressurised, you can turn off the automatic priming function
by turning the lever (Fig. 5) to the vertical position.
• Unscrew and remove the drainage screw. Risk of water leakage.
• Move the red lever into the vertical position to turn off the automatic self-priming oper-
ation.
• Screw the drainage screw back on and refill the Wilo-Isar BOOST5 with water as de-
scribed in the chapter "Filling and Starting".
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)
• Open all the valves to fill the pump with water.
• Connect the plug to the mains
• Set the change-over switch to the vertical position
• Press the button to start the Wilo-Isar BOOST5
Suction operation (Fig. 4b)
• Unscrew and remove the filler screw and snifter valve screw.
• Pour around 1.5 litres of water until it comes out of the aeration hole (Fig. 6).
• Screw the filler screw and snifter screw back on.
• Open the water valve.
• Connect the plug to the mains
• Set the change-over switch to the vertical position
• Press and hold the buttons at the same time for 5 seconds.
Wilo-Isar BOOST5 enters priming mode.
• Press the On/Off switch on the control panel to start priming.
Installation and operating instructions • Wilo-Isar BOOST5 • Ed.03/12/2022
Inflation pressure (bar)
1.5
2
2.5
3
3.5
4