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Beschikbare talen
If the supplied rapid fixed coupling is used at the pump
(instead of a hose nipple with thread), the connection to
the suction line must be made with an adjustable suction
coupling half (do not use an additional rapid fixed cou-
pling), since absolute tightness of the suction line can only
be guaranteed in this way. Likewise, all interconnected
threaded parts of the piping, as well as the connection to
the pump, must be sealed with Teflon tape or hemp.
Leakages in the suction line impair performance and
may make suction impossible!
As an alternative to using a suction hose, a solid pipe
material can also be used: the above rules then apply
analogously. In every case, the foot-operated valve with
filter basket must be installed at the lower end of the
suction line, otherwise the piping runs empty whenever
the pump stops, and renewed suction takes up to five
minutes when it is switched on again. If the pump is used
with admission pressure to increase pressure, a non-
return valve must be built into the suction line.
Length of the suction line
The line length is made up of a vertical and, if appropri-
ate, a horizontal part. The vertical part between the pump
and the water level is the suction height, which must not
exceed 8 m max. If the pump is far away from the source
of water, i.e. if a substantial horizontal line length is add-
ed to the suction height, the ensuing pipeline losses may
reduce the maximum possible suction height to below
8 m. Individual information and/or calculations on this
matter can be obtained from installation firms. Select the
length of the suction line so that its lower end, with the
foot-operated valve, always lies at least 30 cm below the
water level.
Installing the suction line
Using the appropriate connecting piece, screw the suc-
tion line into the suction connection of the pump. With
self-priming pumps, the suction line need not necessar-
ily be filled with water before being connected, but this
considerably facilitates and speeds up the first suction
operation. In all cases, after the suction line is connected,
the pump housing must be filled completely with water
through the pressure connection or the filling opening.
Lay the suction line so that, as seen from the pump, it
constantly falls or is at most horizontal, but is never rising.
Pressure pipe
This conveys the water from the pump to the extraction
point (water tap or sprinkler). The larger the diameter of
the selected pressure pipe, the lower are the pipeline loss-
es and the greater the pressure and water output available
at the extraction point. Screw the connecting piece of the
piping (fast fixed coupling, hose nipple, pipe or the like)
to the pressure connection of the pump (see Fig. item
B), and seal with Teflon tape or hemp. If appropriate,
refill with water once more through the filling opening and
close the filling opening with the screw. The pump is now
ready for operation.
HCE 60, HCE 71, HCE 105 with HPS1
The HPS 1 electronic pump control installed at the pres-
sure connection of these pumps switches them on and
off automatically, depending on pressure and water flow.
22 | EngliSH
Integrated dry-running protection switches the pump
off automatically in the event of lack of water, and
consequently prevents damage due to overheating. If the
vertical distance between the HPS 1 pump control and
the consuming point (water tap, sprinkler) exceeds 15 m,
the pressure pipe must be assembled absolutely water-
tight, for any leakage can impair the function of the HPS
1 pump control (see above for pressure pipe assembly).
The pump control must in all cases be built perpendicular-
ly into the pressure pipe. The current operating condition
of the pump control can be read off from the display.
The green (Power On) LED is lit when the plant is ready
for operation. If the power supply is interrupted, the green
LED goes out.
The amber (Pump On) LED is lit when the pump is
running. If the pump switches off, the amber LED goes
out.
5.3. Start-Up
Never let the pump run dry for long or let it run for
more than 5 min. with the pressure pipe closed
(danger of overheating).
Connect the GPE type pump to the grid and put it into
the desired operating condition with the On/Off switch.
When the pump runs, it must convey water, i.e. the
consuming point must be open. If the pump operates for
more than 5 minutes with the extraction point closed,
it can be damaged by overheating. If the pump is to be
used in some other place, it should be ensured that no air
enters the suction line or pump housing, otherwise the
refilling process described under „Pressure pipe" must
be repeated.
Connect automatic domestic water systems of HCE
type to the grid. The green LED on the HPS 1 lights up.
On first being taken into operation, the pump switches on
for a few seconds (the amber LED is lit), in order to build
up the pressure required for automatic operation in the
pressure pipe. If the amber LED goes out and the pump
switches off without water emerging from the consuming
point, proceed as follows:
With the consuming point (e.g. water tap) open, press
the „RESTART" button to continue the suction operation,
and hold it down until the conveying process starts and
water emerges from the consuming point. Now release
the „RESTART" button and close the consuming point
again. The pressure in the system is now built up. The
pump switches off and the amber LED goes out when the
switch-off pressure has been reached.
When the pump is running, it must convey water, i.e. the
consuming point must be open. If the pump operates for
more than 5 minutes with the extraction point closed,
it can be damaged by overheating. If the pump is to be
used in some other place, it should be ensured that no air
enters the suction line or pump housing, otherwise the
refilling process described under „Pressure pipe" must
be repeated.
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