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UF V (E3) 10/2020 Page 63/119
14.4.7 Messages referring to CO
2
emergency cooling (option CO
2
emergency cooling)
The alarms and information messages occur immediately.
CO
2
emergency cooling is activated
• No message, icon for function 1 is shown (chap. 21.3.2)
CO
2
emergency cooling is running (test run)
Information message “CO2 cooling test active”, information icon
Cause: CO
2
emergency cooling test run has been activated in the controller (chap. 21.3.3)
Actions:
If desired, deactivate CO
2
emergency cooling test run in the controller (chap. 21.3.3)
CO
2
emergency cooling is running (power failure)
• Alarm message “CO2 emergency cooling”, collective alarm icon
• Audible alarm (buzzer)
• Switching the zero-voltage relay alarm output
Cause: Power failure. Activated CO
2
emergency cooling automatically turned on and is running.
Insufficient CO
2
supply of the CO
2
emergency cooling system
• Alarm message “CO2 pressure”, collective alarm icon
• Audible alarm (buzzer)
• Switching the zero-voltage relay alarm output
Cause: emergency cooling has been activated, CO
2
connection pressure is too low.
Actions:
• Check if the CO
2
gas supply is open
• Connect a new pressurized CO
2
cylinder
It is not possible to determine the filling level of a pressurized CO
2
cylinder from the cylinder
pressure. Weigh the bottle regularly in order to replace it in time
Low battery voltage during CO
2
emergency cooling with battery operation
• Information message “Low battery voltage”, information icon.
• Battery voltage is very low (< 12 V).
Actions:
• Check the battery connections
• Charge the battery (charging mode: current, approx. 160 mA)
• If it is defective, replace the battery. Contact BINDER Service
• Reset the alarm message.
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