Julabo Peltier TE400 Manual Del Operacion página 86

Installation Procedure
C13 Connector
8.4 Adding Coolant and Priming Unit
The unit is not intended for use with corrosive fluids. Automotive Antifreeze
should never be used as a freezing point depression or corrosion protection
fluid. Automotive antifreeze contains additives that can damage system
components and will void the warranty.
Approved fluids and their normal operating temperature ranges are:
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see www.julabo.com
It is important to maintain the proper mixture of EG or PG and water over time.
Instruments are available on the market for measure glycol content and should
be used periodically and when refilling the system to check the coolant mixture
ratio.
Inhibited EG or PG should be used when the coolant is being exposed to
aluminum components in order to prevent galvanic corrosion.
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Connecting Power
Filtered/Single Distilled water, +10°C to +40°C
Up to 30% Inhibited Ethylene Glycol (EG) /Water, -10°C to +40°C
Up to 30% Inhibited Propylene Glycol (PG) /Water, -10°C to +40°C