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Meaning of the LED displays on the RCB switch-
gear (fig. 2):
Display
Permanent green LED light
Permanent orange LED light Water is sucked in via the
Flashing orange LED light
Flashing red LED light
Acoustic signal when press-
ing the control button:
Sequence of acoustic sig-
nals (in combination with
flashing red LED light):
Overflow signalling device (optional)
An (optionally available) overflow sensor can be
fitted in the replenishment reservoir and con-
nected to the control device (RCB). This monitors
the replenishment reservoir tank overflow (water
level in tank). A leaky float valve may lead the
water level to rise above the normal level, thus
activating the sensor. In this case, the switching
valve switches to feed mode until the excess
water level recedes and the sensor is thus deacti-
vated.If the critical water level is exceeded
repeatedly during a day, a fault signal is also gen-
erated (audible signal with flashing red LED on the
RCB switchgear).
You have to wait until the water level in the tank
has dropped before you can acknowledge the
error message by pressing the control button on
the RCB switchgear. The acoustic warning signal
will then be deactivated, the red LED light will
continue to flash every five seconds for a certain
amount of time in order to alert the operator to
the previous fault.
Deactivate/activate by keeping the control button
pressed for 30 seconds. A flashing red signal in the
LED display indicates that deactivation was suc-
cessful. A flashing green signal in the LED display
indicates that activation was successful.
Support pump (optional)
It is also possible to connect an external submers-
ible-motor pump (230 V, max. 3 A) to the RCB
switchgear (fig. 3, L1). This allows for the com-
pensation for higher resistances in the suction
line.
CAUTION! Risk of damage to the product!!
The zero-delivery head of the pump may not
exceed 1 bar.
Installation and operating instructions AF Basic
Device status
The water is sucked in via the
cistern (cistern operation).
replenishment reservoir
(feed mode).
The water is sucked in via the
replenishment reservoir in
manual mode (feed mode).
Alarm (overflow of the
replenishment reservoir),
optional
Actuation signal/alarm test
Overflow of the replenish-
ment reservoir
7 Installation and electrical connection
7.1 Installation
The system is designed for wall mounting, and
should be installed at a height of at least 1 m
above the floor.
The rainwater utilisation system comes ready to
install. After the system has been mounted to the
wall, the following connections must be estab-
lished:
• Suction line to the cistern (fig. 1, item 5 and fig. 5,
item 16)
• Connection to the rainwater distributor (fig. 1,
item 12 and fig. 5, item 17)
• Connection to the public water supply (fig. 1,
item 6 and fig. 5, item 18)
• Connection between the overflow and connection
to the sewer via a funnel (fig. 1, item 11 and fig. 5,
item 19)
• Float switch (fig. 1, item 2 and fig. 5, item 2)
The float switch, which is packed separately, must
be fitted in the cistern as shown (fig. 6). The cable
must be installed up to the rainwater utilisation
system and connected with the RCB switchgear.
CAUTION! Risk of damage to the product!!
Risk of damage to the equipment!
The rainwater utilisation system must be
assembled in a dry, frost-proof location.
The rainwater utilisation system is assembled to
the wall with the aid of the fastening kit provided
in the scope of delivery (fig. 8).
CAUTION! Risk of property damage!
The dowels are not suitable for fixing to walls of
lightweight construction!
When fixing to walls of lightweight construction
make sure that it is designed to support the
weight of the rainwater utilisation system.
Adequate noise control must be provided.
Connection on the suction side (fig. 7)
NOTE: The suction line must be laid in an uninter-
rupted rise from the cistern to the pump.
The diameter of the suction line must be at least
the nominal diameter of the pump connection on
the suction side (DN25 - 1") (fig. 5, item 16). The
suction line must be both pressure- and vacuum
resistant. Ensure that the suction line does not
deform by the sucking action of the pump.We rec-
ommend the use of plastic suction lines.
In general, fittings in the suction line should be
avoided as they reduce the maximum suction
head of the pump. The maximum suction head of
self-priming pumps is approx. 8 m. The suction
height is composed of the geodesic head between
pump, lowest water level in the cistern and the
head loss of the complete suction line (fig. 7).
The pump must be protected with a strainer (mesh
width 1 mm) or an appropriate filter attachment at
the suction line in the cistern. A foot valve with
non-return valve prevents the suction line from
idling or blocking up, thus preventing the pump
from running dry. It is recommended to use the
English
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