Heater-Cooler System 3T • Operation
CP_IFU_16-XX-XX_USA_015 5.7
5.3.2 Displays after power-up
!
If all of the heater-cooler displays flash, the device is in service mode. Only qualified service personnel
is allowed to use this operating mode for test and diagnostic purposes.
It must, under no conditions, be used during the operation. Power the heater-cooler down and then up
again to close the service mode.
Displays after successful completion of the self-test
Fig. 12: Displays after power-up
After power-up and sucessful completion of the self-test, the following displays are shown:
◗ The green LEDs of the Standby-keys of the heater-cooler are not lit (here, the LEDs indicate the
active standby mode and/or the powering down).
◗ The last set temperature values are displayed.
◗ The segments of the water level control (if filled correctly) display the corresponding maximum of
the water level (both green LEDs are lit).
Heating or cooling starts immediately after power-up.
°C °C °C
°C °C °C
1 2
37.6
20.1 20
37
7
5