Tcu Coolant Specifications - GE Xcellerex XDM Series Operating Instructions Manual

10 Reference information
10.7 Temperature control unit

10.7.3 TCU coolant specifications

10.7.3 TCU coolant specifications
TCU water quality specifications
Tap water can be used to prepare the coolant, when the coolant temperature (mixer
jacket temperature) is designated to be between 6°C and 65°C (the temperature of the
disposable bag contents is between 10°C and 60°C ). The water quality must be within
the guidelines shown below. Deionized water is not suitable.
Contact the TCU manufacturer for additional information.
Parameter
Suspended solids
Conductivity
Hardness
pH
CO
Iron
Manganese
Sulfate
Chloride
COD
Bacteria
TCU coolant composition
The use of corrosion inhibitor in the coolant is optional. If the vessel jacket temperature
is expected to be below +6°C, antifreeze needs to be added to TCU coolant.
The table below shows an example coolant composition (containing corrosion inhibitor)
that allows the vessel jacket temperature to decrease to -15°C without freezing.
Amount (%)
10
50
40
288
aggressive
2
Component
OptiShield
propylene glycol
water
Xcellerex XDM 50-1000, XDUO 100-1000 mixers Operating Instructions 29251615 AD
Specification
None
50 to 600 µS/cm
< 80 °dH
7.8
None
< 0.3 mg/L
< 0.05 mg/L
< 250 mg/L
< 250 mg/L
< 40 mg/L
< 1000 CFU/mL
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