USTM WS-12-C-1650 - Page 9

9
EN
Control heads in the case of both devices are connected according to the illustration below, elements necessary for the
connection are included in the set.
the bypass valve
fig.1
the head
body
screw
fastener
the bypass body
REG.CAP. =
Assembly
3. Notes
- Hot water can seriously damage the water soening system. In the case of installation near a boiler, a non-return
valve should be installed in the hot water tank or on the supply line between the device and the tank
- The pressure of delivered water on the input must be contained in the range 2.5 to 4 bar
- The required ambient temperature for the soener is 1-30°C. The soener must be protected against frost
- ONLY SALT TABLETS should be applied as a means for regenerating the bed
- Before the assembly of the control head, an appropriate injector and restrictor should be necessarily selected (see the
head operating instructions, p. 13) - concerns two-element devices.
4. BNT head programming
ion-exchange ability
hardness d
The detailed diagram of head programming is contained in the BNT head operating instructions on page 8.
However, it is recommended to read the whole head operating instructions before you begin programming.
In order to calculate the amount of water between regenerations - REG.CAP. the station ion-exchange ability given in the
table should be divided by the feed water hardness in German degrees.
E.g. I have a ST-40 soener - vessel 40l. Ion-exchange ability
of this station is 114 0dT. Hardness of my water is 150d. That is 1140d / 150d = 7.6T. Thus, the value in this example is 7.6