Aqua-Flow 2.13 DORW4100 18.02.2013 5 / 8
Important notes:
Observance of and compliance with the information provided in this technical
documentation, as well as in documentation for components associated with this
product, form part of the warranty conditions.
General information:
The automatic mains water back up is a complete unit for the replenishment of mains water in
underground rainwater tanks. During dry periods, operation of the rainwater harvesting
system is maintained using mains water from the mains supply.
Installation location:
The system must be installed in a dry and frost-free area.
The electrical connections must be protected from moisture.
Function:
A fully wired, wall-mountable module for automatic mains water feed. The mains water outlet
is in accordance with EN1717 and DIN 1988. Guaranteed water supply to the tank in times of
drought. Safe operation thanks to low-voltage (12V) power supply. When a low water level is
reached, a level sensor in the tank opens a solenoid valve in the control unit. A printed circuit
board in the control unit allows water to flow in at a rate of 270 l/h over a fixed period.
The level sensor is supplied with a 15 meter long cable connects to the bottom-right of the
housing via a plug connector (optional 10 m extension incl. shrink tube available with art. no.:
RWZT9006).
Assembly of individual components:
i)
Before commencing the domestic installation, you must identify a suitable installation
location for the Aqua-Flow 2.13. The power supply should not be positioned more than
one metre from a 230V AC wall socket, while the mains water pipe must also be in
close proximity.
j)
The installation location should be higher than the uppermost part of the rainwater
tank so that the back up mains water can flow freely into the tank.
The free outlet must be installed at least 150 mm above the maximum possible non-
drinking water level (backflow level). In addition, the “Aqua-Flow Box” must be
installed such that any overflow water can flow directly from the splash guard funnel
across the floor and into a floor drain.
k)
Mount the unit to the wall securely and horizontally. Then install a DN 40 supply feed
in the empty pipe at a steady gradient from the tank to the outlet at the bottom-left of
the unit.
l)
The overflow pipe (emergency overflow) at the bottom-right of the Aqua-Flow 2.13
should be connected to the domestic wastewater system.
m)
The mains water pipe must then be correctly connected to the solenoid valve. Prior to
installation, the pipes must be thoroughly rinsed according to DIN 1988 Part 2.
Otherwise, the operation of the system may be adversely affected, for example by dirt
left over after installation.
n)
Feed the level sensor cable through a service pipe to the underground tank and then
install the sensor cable as follows:
