Inhaltsverzeichnis
Werbung
Verfügbare Sprachen
Verfügbare Sprachen
Cooling water
Check the quality of the cooling water before connecting the device to a cooling water supply.
Recommended cooling water quality:
Parameter
pH value
Sulfate [SO4 2- ]
Hydrogen carbonate [HCO3-] / sulfate [SO4 2-]
Hardness [Ca2+, Mg2+] / [HCO3-]
Alkalinity
Conductivity
Chloride (Cl-)
Phosphate (PO43-)
Ammoniac (NH3)
Free chlorine
3-valent iron ions (Fe3+ )
2-valent manganese ions (Mn2+)
Carbon dioxide (CO2)
Hydrogen sulfide (H2S)
Oxygen content
Algae growth
Suspended solids
•
Recommended cooling water temperature range: 10°C ... 15°C
•
Permissible cooling water temperature range: 5°C ... 30°C
If the recommended cooling water temperature range is exceeded, performance restrictions are
to be expected. If the cooling water temperature is low, condensation may occur on the cooling
circuit.
NOTE
Corrosion and calcification caused by inadequate cooling water
quality
Inadequate cooling water quality can lead to calcification or corrosion of
important system components and thus to failure of the device.
•
Observe the recommended cooling water quality
•
Avoid hard water, water that contains iron or chlorine, distilled or de-
ionized water, seawater or water that comes from cooling towers or
rivers
Permissible value
7.5 to 9.0
< 100 ppm
> 1 ppm
> 0.5 dH
60 ppm < [HCO3-] < 300 ppm
< 500 μs / cm
< 50 ppm
< 2 ppm
< 0.5 ppm
< 0.5 ppm
< 0.5 ppm
< 0.05 ppm
< 10 ppm
< 50 ppm
< 0.1 ppm
not permissible
not permissible
13
Werbung
Inhaltsverzeichnis
