
Copy of the instructions for mobile control for water systems OSMOBIL BOX
VF Reinigungstechnik
Benjamin Volk & Tobias Becker GbR
Blankenfohrweg 11
32139 Spenge
T 05225 87198
15
info@vf-reinigungstechnik.de
www.gebaeudereinigung-shop.de
www.gardiner-teleskopstangen.de
www.vf-reinigungstechnik.de
Sparkasse Bielefeld
IBAN DE60 4805 0161 0003 4120 53
BIC SPBIDE3BXXX
Steuer-Nr. 324/5816/0846
systems, please note that you may need an additional lter cartridge when lling heating
systems in which the smallest boiler heating surface is above 50l/kW or the total hea-
ting output is above 600kW, as the water quality for lling in these special cases must be
below approx. 3 microS/cm (approx. 2 PPM).
Mixed bed resins with sucient residual capacity usually meet this value without any
problems. If you want to use an osmosis system for such special cases, you may need an
additional lter. For this, please simply contact your specialist dealer.
4.2 PH value
In addition, you should measure the PH value of the heating water after lling the hea-
ting system and after a short period of operation and adjust it to the installed materials
if necessary. In this regard, we refer to the specic content of VDI2035, according to
which the PH value of the heating water must be adjusted to the materials primarily used.
Measuring the pH value of the ultrapure water produced with a mixed-bed resin or a re-
verse osmosis system before introducing it into the heating system makes no sense from
a practical point of view or is not possible with simple measuring methods due to the low
conductivity of the water. In addition, the PH value of the ultrapure water in the air would
very quickly become slightly acidic (pH value of 4-5), as the pure H2O is able to dissolve
carbon dioxide from the air, which also makes it impossible to achieve an objective mea-
surement result. This deviation of the pH value of the ultrapure water into the acidic range
does not usually happen in the heating system, as it is sealed accordingly.
In most cases, the PH value of the water introduced into a heating circuit will be in the
range of 8-9 after a short period of operation. This PH value is optimal for many materials.
5 Warranty
All OSMOBIL water systems and controls are subjected to extensive quality control and
testing before delivery. Even the construction of the devices is designed for unconditional
reliability and durability. Should there nevertheless be any problems or a reason for comp-
laint within the warranty period (24 months for natural persons, 12 months for tradesmen
and companies), please direct the respective claim for replacement to the company VF
Reinigungstechnik. Please note that the warranty only covers units that are structurally
unchanged and have been operated strictly in accordance with the specications in this
manual.