Wilo PB BOOST FIRST Instrucciones De Instalación Y Funcionamiento página 23

Installation and operating instructions Wilo-PB BOOST FIRST
WARNING
WARNING! Danger of personal injury!
Depending on the operating status of the pump
or system (fluid temperature), the entire pump
can become very hot. Touching the pump can
cause burns!
WARNING
WARNING! Danger of personal injury!
Depending on the temperature of the fluid and
system pressure, when the venting screw is
opened, hot liquid or gaseous fluid may escape
or shoot out at high pressure. Escaping fluid can
cause scalding!
ƒ
Undo the venting screw carefully with a suitable
screwdriver and unscrew it completely (Fig. 6).
ƒ
Carefully push back the pump shaft with a
screwdriver several times.
ƒ
Protect electrical parts from any escaping wa-
ter.
ƒ
Plug in the pump and open one tap.
NOTICE
The pump may jam if the venting screw is un-
done, depending on the operating pressure level.
ƒ
Screw the venting screw back in again after 15
to 30 seconds.
en
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