Stulz CyberAir Mini CW - Page 13

13 © STULZ GmbH – all rights reserved EN/06.2021/G23
minispace cw original instructions
Cooling water quality
NOTICE
Observe the following limits for the water circuit of the A/C unit.
Water properties and ingredients
Carbonate hardness  
Carbonate hardness when adding inhibitors  
Total hardness  
pH value 
pH value with light metal* 
Chloride content mg/l 
Chloride content with austenitic steels mg/l 
Free chlorine mg/l 
Hydrogen sulphide mg/l 
Ammonia (NH

/NH
4

 mg/l 
Sulphate mg/l 
Manganese mg/l 
Iron mg/l 
Sulphide mg/l 
Free aggressive carbonic acid mg/l 
Suspended solids mg/l 
Number of germs cfu/ml 
Electric conductivity without inhibitors  
Electric conductivity with inhibitors  

*aluminium or titanium.
All data refer exclusively to the A/C unit.
NOTICE
