Gardena 3820 Installation And Operating Instructions Manual - 1. Technical Data / Use
11
G
The GARDENA Rain Water
Collection Filter is supplied in
two versions:
Rain Water Collection Filter,
Art.-No. 3820
The Rain Water Collection Filter,
Art. No. 3820, is intended for use
in downpipes with a diameter
between 96 mm and 110 mm.
Rain Water Collection Filter
with Adaptor, Art.-No. 3821
The Rain Water Collection Filter,
Art. No. 3821, consists of the
Rain Water Collection Filter,
Art. No. 3820, and a two-piece
adaptor (Upper Reducing Cou-
pling, Lower Reducing Coupling)
which enables the Rain Water
Collection Filter to be used in
downpipes with a diameter of
between 65 mm and 110 mm.
GARDENA Rain Water Collection Filter
1. Technical data / Use
(fig. A)
General note:
In order to ensure proper func-
tioning, the Rain Water Collection
Filter should be installed in the
downpipe in the vertical position
only.
2.1 Installation of the
Rain Water Collection Filter
without Adaptor, Art. No. 3820
Preparation for installation
(fig. B - E)
1. Choose the height for the inlet
into the tank.
Ideal: The height for the outlet
of the filter is approximately
the same as the height of the
inlet into the tank (fig. B).
2. Mark the upper edge on the
downpipe for installation of the
Rain Water Collection Filter
(fig. C).
3. Cut out the installation aid
from the perforated pattern
in the operating instructions
and place this flat around the
downpipe as shown in fig. D.
Note: The installation aid
must overlap at both ends in
order to ensure horizontal
scribing (fig. D 1).
4. Use the installation aid to draw
a straight line at the top, if pos-
sible over the entire diameter,
of the downpipe and preferably
using an indelible pen (fig. D).
5. Use a measuring tape to meas-
ure 34 cm downwards from the
top and mark this position (fig.
D).
6.
Ensure that the downpipe has
the same diameter as the drain
pipe. If the diameter of the
downpipe is smaller than the
drain pipe, the downpipe must
be secured, for example to
the wall of the house or the
pipe holder to prevent the
lower section of the downpipe
sliding into the drain pipe.
7. Slide the installation aid down
to this marked position and
mark the lower edge for instal-
lation, again, if possible over
the entire diameter, of the
downpipe (fig. D).
8. Use a suitable saw to cut out
the marked section from the
downpipe. Ensure that the cut
is clean and straight (fig. E).
Use a file to deburr the cut
edges.
Installation (fig. A / F / G)
1. Turn the nut of the Rain Water
Collection Filter
1
clockwise
as shown in fig. F 1 (a).
2. Insert the Rain Water Collec-
tion Filter between the cut
downpipe sections – fig. F 1 (b)
– and tighten up by turning
the nut
1
between both ends
of the downpipe (c).
3. Connect the Rain Water
Collection Filter and the
GARDENA Rain Water Tank
using a 25 mm (1
” ) hose and
the GARDENA Connecting Set
3815 (fig. G / G 1). By using the
connecting sleeves
3
, there
is also the possibility of con-
necting up a commercially
available DN 50 pipe, e.g. for
the supply from rain water
cisterns or other types of rain
water vessels.
Tip: The 33 mm (G 1)
thread
2
at the outlet of the
Rain Water Collection Filter
also enables the connection of
the GARDENA Threaded Tap
Connector 902 as well as the
GARDENA “Profi” Maxi-Flow
System Threaded Tap Connec-
tor 2802.
2.2 Installation of the
Rain Water Collection Filter
with Adaptor, Art. No. 3821
Preparation for installation
(fig. B - E)
1. Choose the height for the inlet
into the tank.
Ideal: The height for the outlet
of the filter is approximately
the same as the height of the
inlet into the tank (fig. B).
2. Mark the upper edge on the
downpipe for installation of the
Rain Water Collection Filter
(fig. C).
3. Cut out the installation aid
from the perforated pattern
in the operating instructions
and place this flat around the
downpipe as shown in fig. D.
Note: The installation aid
must overlap at both ends in
order to ensure horizontal
scribing (fig. D 1).
4. Use the installation aid to draw
a straight line at the top, if pos-
sible over the entire diameter,
of the downpipe and preferably
using an indelible pen (fig. D).
2. Installation instructions