Firmware release notes
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Code numbers:
084B4081: AK-CC55 Compact


Firmware version: 2.13
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Release date: 07.07.2022

Fixed bugs:
- Display now shows “OFF” when set off via a DI main switch
- Actual alarm limit readouts updated when main switch is set off

Enhancements:
- Extension of thermostat range from -50°C down to -60°C
- Function to remote lock display keypad (type AK-UI55 Set)
- Added Fan stop function when door opens
- Improved SH-Close control when running Modulating Thermostat (MTR)
- Separate defrost/thermostat parameters for thermostat band 2
- Option to disable compressor 2 in thermostat band 2
- Option for user defined temperature sensors type for S3, S4 and S5
- Improved Melt function when running Modulating Thermostat (MTR)
- Option for offset adjustment for sensors S2 and S5 with long cable runs
- Minimum defrost time added to be used in CO2 Hot gas defrost applications.


Firmware version: 2.02
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Release date: 15.03.2021

Fixed bugs:
- Display inactivity time out is reduced to 120 sec
- Alarm text for CO2 Leak detection alarm alternates with temp. readout

Enhancements
- Superheat and Superheat reference added in history log
- Event log added
- Firmware can be updated via KoolProg application


Firmware version: 1.91
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Release date: 27.12.2019

Initial version