8.2 Overview of alarms
Alarms affect safety. The components of the device, such as the pump,
switch off. The device emits a two-tone acoustic signal. In addition, the red
LED on the device is lit.
Output in the display
Description
In the case of a low-level alarm, the level of the heat transfer liquid is below the
minimum limit. Where required, the fault which caused this low level must be
remedied to clear the alarm. The heat transfer liquid must also be topped up.
Warnings are output before the alarm is output. The alarm is output after
approx. 5 minutes.
The pump is blocked in the case of a pump alarm. This may be due to an
impermissibly high viscosity of the heat transfer liquid or a foreign body in the
circuit.
The temperature of the electronics is higher than 75 °C.
8.3 Overview of warnings
Warnings do not have a significant effect on safety. The device continues to
operate. The device will make a continuous noise for a short period of time.
Warnings are issued periodically. You will therefore be reminded of an active
fault.
Indication in the display
Description
In the case of a low-level warning, the level of the heat transfer liquid is below
the minimum limit.
Where required, the fault which caused this low level must be remedied to
clear the warning. The heat transfer liquid must also be topped up.
If this warning is ignored, a low level alarm is issued after approx. 5 minutes and
the components of the device, such as the pump, are switched off.
This warning means that the upper temperature limit has been exceeded.
The device fault must be remedied to clear this warning.
This warning means that the lower temperature limit has been exceeded.
The device fault must be remedied to clear this warning.
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