KKT chillers vBoxX 10, Инструкция по эксплуатации

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2.17. Water quality
The following limit values must be adhered to, to ensure safe operation of the units:
Table 7: Water quality
Property /
component parts Unit Value range
Standard version
Value range
Non-ferrous metal-free version
pH value (20°C) - 7-9 6-9
Saturation index - -0.2 < 0 < +0.2 -0.2 < 0 < +0.2
Conductivity µS/cm 80-500 5-500
Water hardness °dH <5.6 <5.6
Carbonate
hardness mol/m³ <0.5 <0.5
Total bacterial
count
K/ml <10,000 <10,000
Particle size µm < 250 < 250
Glycol fraction
(AFN)
% by
vol
20-40 20-40
Oil fraction % by
vol
0 0
Chloride (Cl-) mg/l <50 <50
Sulphate mg/l <50 <50
Nitrate mg/l <100 <100
Copper mg/l <0.1 <0.1
Iron mg/l <0.2 <0.2
Free carbon
dioxide
mg/l <20 <20
Manganese mg/l <0.1 <0.1
Ammonia mg/l <2 <2
Free chloride mg/l <0.5 <0.5
Sulphide mg/l <0.03 <0.03
The specified limit values must always be complied with in order to avoid blockaging of the plate
heat exchanger.
Furthermore, slime-forming bacteria must be prevented in the cooling water. If this is not possible,
KKT chillers can recommend or provide an appropriate inhibitor to remove the slime forming agents
on the basis of a biological water analysis carried out in advance.