6.4 Connection to a pipe network The device should be connected to the pipe network
with flexible hose lines to reduce vibration and noises. 6.5 Power supply connection Risk
of electric shock! Never operate the device in a wet
environment and only under the following conditions:
-Connect it only to an earthed outlet that is properly installed, earthed and tested.
-The mains voltage, mains frequency and fuse protection must correspond to those stated in the
"Technical Specifications".
-The device must be supplied with a rated residual current of max. 30 mA through a residual-
current device (RCD).
-The electrical connections must not be under water and must be located in a flood-proof area. The
connections must be splashproof for outdoor use.
-Extension cables must have sufficient conductor cross sections. Cable reels must be fully
unrolled.
-National installation specifications must be observed.
6.6 Setting the pilot pressure (only HWW..., HWWI...)
Set the pilot pressure before the initial operation. See section 9.4.
6.7 Filling the pump and suction Caution! The pump must be filled with water with every
new connection and in the case of
water loss or air intake. Operating the pump without filling it with water will destroy it! Note:
HWWI..., HWAI... (Pumps with integrated filter): to fill the pump, remove the filter and
additionally fill it through the pressure connection (14).
- Unscrew the water filling screw (13) with gasket. - Slowly pour in clean water until the
pump is filled.
- Screw in the water filling screw (13) with gasket again.
- Open the discharge line (open the water tap or spray nozzle) so that air can escape during
suction.
- Switch on the device (see section 7.).
- The device is ready for operation when water emerges evenly.
Note: the suction line does not need to be filled because the pump is self-priming. However,
it may take some time until pressure is built up depending on the length and diameter of the
line. To shorten the suction time: install a check valve at the intake opening of the suction hose
and fill the suction line too.
ENGLISH en
Caution! The pump and suction line must be connected and filled (see section 6.).
Caution! The pump must not be allowed to run dry. There must always be sufficient
conveying medium (water) available.
A protective circuit shuts down the motor if the pump is blocked by foreign bodies or the
motor is overheated.
7.1 Electronic functions (only for devices with electronics, devices see table
page
3 - E)
Shutting down the pump when the discharge line is closed:
HWW..., HWA..., HWWI..., HWAI...: he pump switches to standby mode after a follow-up
time.If the discharge line is closed when the pump is running (close the water tap or spray
nozzle). The electronics monitor at regular intervals whether water is flowing through the
pump. The LED (3) flashes green for 40 or 70 seconds (depending on the model) if not
water flow is detected. The pump motor is then switched off and the LED (3) slowly
flashes green to indicate the automatic startup when opening the discharge line. P 6000
Inox: the LED (3) slowly flashes green for 20 seconds and then quickly for a further 5