Installation Of The Dosing Line; Installation Of The Overflow Line For The Flushing Tank; Connect Buffertank (Optional) - WDT GRANUDOS 45/100-CPR Touch XL Bedienungs- Und Installationsanleitung

Granudos 45/100-CPR Touch XL + Touch + S5
Dosing unit
If the dosing device must be installed above the basin level

Install a free-flowing non-return valve in the supply line to the GRANUDOS.

Install a spring-loaded non-return valve in the dosing line to the clean water piping to
avoid the flushing tank from draining when the system is turned off. (see installation
diagram above - corresponding non-return valves are available)
If an overflow shall be excluded when the device is turned off or in the event of faults

Install a solenoid valve 3/4" in the Inlet and a non-return valve d25 or d32 in the drain.
Check for minor pressure loss! Therefore, a supply pressure > 0.4barg is required at
commissioning!
Measuring water return flow (only CPR Touch XL)
The measuring water is automatically conducted into the dosing device's flushing unit and is
thereby returned to the water circulation.
4.4.2
ATTENTION!
Due to the chlorine solution's concentration, thick-walled pipes in
PVC PN16 must be used.
At a minimum, the piping of the dosing lines must be executed in the dimension d25x2.8mm
in PVC PN16 (thick-walled). For longer dosing lines (above approx. 15m) it is recommended
to use the dimension d32x3,6mm in PVC PN16 (thick-walled), due to the potentially higher
pressure loss.
Install the dosing line from the GRANUDOS outlet to the injection point. Measuring water
may never be withdrawn downstream of the injection point! A ball valve must be
installed at the injection point.
4.4.3
Screw the overflow nozzle into the flushing tank and install a correspondingly-sized pipe to
the gully.
4.4.4
ATTENTION!
Due to the chlorine solution's concentration, thick-walled pipes in
PVC PN16 must be used.
The buffertank is connected to the chlorine line. 2 pneumatic valves are installed downstream
of the chlorine dosing line's branch-off point, according to the flow diagram. These are
supplied with air via a solenoid valve and are thus controlled. Connect the pneumatic valves'
control lines to the solenoid valve. The solenoid valve is connected to the on-site air supply.
The chlorine solution can be dosed from the buffertank via on-site pumps at the auxiliary
basins.
Index: 02 Date modified: 06/06/2019

Installation of the dosing line

Installation of the overflow line for the flushing tank

Connect buffertank (optional)

OI No.: BA SW 003-02 Granudos 45-100 CPR Touch+Touch+S5-Dosiereinheit EN.docx Page 30 of 58