Specifications

Filling
1 9.2 Filling with heat transfer liquid
Filling level of the interior bath:
max. up to 2.0 cm below the cover plate,
min. up to
5.0 cm below the cover plate.
- -
- _
When working with water or water with antifreeze:
or with oil below ambient temperature:
the filling level should be 2 cm below the deck plate.
When working with oil above 80°C:
Keep level somewhat lower. Oil expands when being
heated. Rule of thumb: 10% volume increase per 100°C heat
increase.
External systems included within the circulating circuit have
to be filled with the same heat transfer liquid in order to avoid
too much liquid being drawn from the internal bath.
# The bath level should be checked when the preset tem-
perature has been reached!
Quite often closed external systems cannot be prefilled as
suggested.
In this case the
internal bath of the unit has to be
ALARM ji
filled to the max. level. After starting the unit, the pump will
feed the necessary liquid to the external system. Should the
- LEVEL
demand be higher than the volume difference between high
and low, the low liquid level sensor will be activated and the
pump switched
off.
In this case:
Replenish the liquid.
@ Reset the unit:
Depress the reset button.
3 The unit starts up again
@ Repeat this action if necessary.