evenes HE-HT 40 Serie Mode D'emploi page 48

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fIllInG and VEntInG fIllInG and VEntInG
the SySteM
Fill and vent the system correctly . to vent the
pump, loosen the indicated screw by turning it anti-
clock wise . Caution! hot water may escape here,
depending on the system's operating state . after-
wards, re-tighten the screw and start the venting
programme (see page 40) .
after this process, you can start the pump in the desi-
red control mode .
incomplete venting can lead to noises in the pump
and system .
Warning! Risk of burns!
the entire pump can be very hot, depending
on the operating state of the system.
Notice
sERVIcE and Maintenance
Switch off the power to the system before performing maintenance,
cleaning or repair work, and secure it against unauthorised reactivation .
allow the pump to cool down in the event of high temperatures and
system pressures . there is a risk of scalds!
eveneS heatinG PUMP he-ht 47