MOULDPRO TCU-90L, User Manualline

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[37]
User Guidelines
– TCU-90L
12-06-2019 Vers. 003
16
Water quality
Depending on the unit to be cooled or heat-balanced, certain requirements have to be met by the cooling water regarding
its quality. In order to protect all parts of the unit against corrosion, Mouldpro recommends as a matter of principle to treat
the water with a suitable cleaning agent (anticorrosive as well as non-ferrous metal protector and hardness stabilizer). In
addition, depending on the materials installed, the temperatures and the type of process, the following water quality data
have to be met.
As a rule the following data apply:
HYDROLOGICAL DATA MAX UNIT
PH-value 7,5
– 8,5
-
Conductivity < 150 mS/m
Total hardness < 15 °dH
Carbonate hardness < 4 °dH
Carbonate hardness in case of
stabilization of hardness < 20 °dH
Chlorid Cl <100 mg/l
Sulphate-So4 < 150 mg/l
Ammonium NH4 < 1 mg/l
Iron Fe < 0,2 mg/l
Manganese < 0,1 mg/l
free from solids
Furthermore the following applies:

Systems with stainless steel

Systems with aluminium
PH-value min. 7,0 max. 8,0

Temperatures below 5°C
o
When employing chillers at temperatures below + 5°C, an anti-freeze medium with corrosion inhibitor
must be added.

Temperatures over 120°C
o
At water temperatures over 120°C glycol may not be used.
If the recommended water qualities are not met, the components of the unit will be damaged due to corrosion. Mouldpro
will not accept any liability for any such damages
Chlorid Cl Temp. < 50 °C max. 100 mg/l
Chlorid Cl Temp. 50 up to 90 °C max. 50 mg/l
Chlorid Cl Temp. > 90 °C max. 30 mg/l