Lauda Alpha, Operating Instructions Manual

Page: 23 / 56

09/2020 j Alpha 23 / 54
6.2 Filling and Emptying
Filling

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 cut at about 80 mm below the bath
bridge!
(Protection testing (

7.11.3))
Emptying
 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)!
Bath drain nozzle