Operation
TDS measuring device
The battery powered meter shows the TDS (total dissolved
solids) in ppm in the water. See Fig. 2.
Operation:
Switch on using the red button on the top left,
then select the measuring point, (inlet or outlet). As soon as
the value on the output is > 20 ppm the resin in the cartridge
is exhausted. The untreated water hardness can be
determined by measuring the value at the inlet and the
capacity of the resin can be calculated off the capacity graphs
(Fig. 3).
In order to conserve batteries, the meter turns off
automatically after 20 seconds. Reset if necessary.
Flow and quantity meter
The volume of demineralized, and total water can be read off
the flow meters.
Operation:
The places after the comma show the litres, the
places in front of the comma show the cubic metre (1,000
litres). Example: 0001.248 is 1,248 L (3.8 L = 1 US gal.).
The top flow meter shows the quantity of completely
demineralized water, the bottom meter shows the total
amount of water, including mixed water.
It is recommended to log the last meter reading when
changing the resin because the meter cannot be reset.
Mixing valve
If demineralization only suffices up to a certain hardness,
then untreated water can be added. The mixing valve is used
as well when cleaning the closed loop hydronic system:
Rinse with untreated water and then fill the closed loop
hydronic system with demineralized water by moving the
valve lever.
Pressure reducing valve
The pressure reducing valve regulates the pressure of the
untreated water with regard to the system.
Operation:
Use the screw driver to turn the adjusting screw
in the center of the valve: To the left: pressure is reduced; to
the right, pressure is increased. The higher the pressure, the
faster the water flows through the fill-up station. The
adjusted pressure can be read off the pressure gauge.
The pressure may not be adjusted higher than what the pressure the relief valve of the closed loop
hydronic system is set to. In case of doubt, do not set higher than 30 psi (207 kPa).
Capacity 6.6 gpm
(25 L/min)
Fig. 2: Operation
(29-87 psi)
