It remains possible to scroll through other screens, to check the actual status of other
parameters. Press stop key (7) to stop the unit and wait until the unit has stopped. Switch off the
voltage, inspect the unit and remedy. The warning message will disappear as soon the warning
condition disappears.
4.7 Shutdown
Description
The unit will be shut down in following circumstances:
• In case the temperature at the outlet of the element exceeds the programmed shutdown
level (detected by temperature sensor (TT11) or by temperature switch (TSHH11)).
• In case of too high air/oil temperature (detected by additional temperature switch
(TSHH21)).
• In case of overload of the motor (M1) or the fan motor (M2).
• In case of error of the outlet pressure sensor (PT20).
• In case of incorrect phase sequence, detected by phase sequence relay (K25).
Element outlet temperature (TT11)
If the element outlet temperature, measured by temperature sensor TT11, exceeds the shutdown
level (see section Programmable settings), the unit will be shutdown, alarm LED (2) will flash,
automatic operation LED (4) will go out and the following screen will appear:
Instruction book
66 2920 7109 51
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