6.2 Filling and Emptying
Close the drain nozzle.
Fill baths up to a maximum level of 20 mm be-
low the bath bridge.
Optimum operation at 20 – 40 mm below the
bath bridge.
Operation is possible down to 70 mm below the
bath bridge.
Low-level switch-off takes place at approx.
80 mm below the bath bridge!
(Protection testing ( 7.11.3))
Switch off the thermostat, pull out the mains plug!
Drain the heat transfer liquid through the drain nozzle
using a flexible tube.
The units are designed for operation with non-flammable liquids to
DIN EN 61010-2-010 water or glycol/ water mixture.
When starting up the unit, the tubular heater has to be covered with liquid!
When connecting an external consumer take care of the heat transfer liquid level for it must not
decrease too much fill in heat transfer liquid if necessary.
Do not drain the heat transfer liquid when it is hot or very cold (below 0 °C)!
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