Gardena 1774 Betriebsanleitung - Seite 4
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3. Installation
Installing the
Pressure Tank Unit:
Fixed installation of the
Pressure Tank Unit:
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Connect the hose to the
suction side:
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The installation position must be firm and dry, and permit a secure
mounting for the pressure tank unit.
➔ Install the pump at a safe distance (min. 2 m) from the pump-
ing medium.
The pump must be installed in a location with low air humidity
and sufficient ventilation in the area of the ventilation slots. It
must be at a distance of at least 5 cm from the walls. No dirt
contamination (e.g. sand or earth) may be sucked in through the
ventilation slots.
The mounting board
pressure tank unit slipping.
➔ Screw the pressure tank unit to the mounting plate with all four
feet
(The use of cap screws is recommended).
Install the pressure tank unit so that there is room to place a suitably
sized drainage tray under the drain screw
system to be drained.
If possible install the unit higher than the surface of the water to be
pumped. If this is not possible, install a vacuum-resistant shut-off
device between the unit and the suction hose, for example for
cleaning the integrated filter.
If the pressure tank unit is being permanently installed indoors for
domestic water supply, the Pressure Tank Unit should not be
connected to the domestic water pipework with rigid pipes but
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with flexible hoses, to reduce noise and to avoid damage to the
pressure switch due to vibration.
If the system is being installed permanently, please fit suitable
shut-off devices on both the intake and delivery sides. This is
important e.g. for maintenance and cleaning work or if the system
is being shut down.
The connection pieces on the intake and delivery sides must
only be tightened by hand.
Do not use any water hose snap connection system components
on the intake side. A vacuum-tight suction hose must be used e.g.
• GARDENA Suction Hose Art. no. 1411
• GARDENA borehole Suction Hose Art. no.1729.
To reduce the pump repriming time, we recommend:
• using a suction hose with backflow preventer, which prevents
the suction hose emptying automatically when the Pressure
Tank Unit is switched off.
• If the suction heights are high, use a suction hose with a small
diameter.
1. Connect vacuum-tight suction hose
(e.g. Art. no. 1723/1724)
side and screw in place so that it is airtight.
2. For suction heights exceeding 4 m also secure the suction
hose
(e.g. by fastening it to a wooden post).
This relieves the pump of the weight of the suction hose.
If very fine dirt is present, we recommend the use of a GARDENA
pump preliminary filter art. 1730/1731 in addition to the integrated
filter.
(e. g. a wooden board) prevents the
. To allow the unit or
via a connection piece
to the connection on the intake
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