9
System function introduction
E02A INTEGRATED RACK TYPE AIR CONDITIONER
UM.ICUBE2.0-IRTAC.SG.0822 August 2022 www.eaton.com
7. If configured with hydrogen discharging fan, the fan will start and run for 120 seconds.
8. The compressor, internal fan & external fan, electric heater, hydrogen discharging fan stops.
9. When the self-testing procedures are completed, the unit should now be functioning normally.
4.6 Hydrogen discharging/emergency fan (option)
10. Discharge hydrogen at regular timese:
according to the requirement for environment inside the cabinet, the
hydrogen discharging fan realizes automatic cycle hydrogen discharging and forced ventilation. The interval time
of each automatic cycle hydrogen discharging is 24 hours and the discharging time is 5 minutes.
11. Forced ventilatione:
when the compressor does not have cooling capacity (including compressor failure, power
failure), the temperature inside the cabinet is higher than the start up point (emergency point + sensitivity) of
emergency fan, start the emergency fan.
4.7 Alarm
The cabinet air conditioner provides the following alarm information. Please refer to table for the setting point.
Figure 4.1
Diagram for alarm trigger
If the issue is still present, the alarm information will be still on, until the issue has been eliminated. And you can
check the alarm statistics through entering the alarm menu shown as Figure 4.1.
Alarm parameter and the setting point
Parameter
Default
value
Setting range Trigger Condition
Action
Cabinet High Temp
65
20–80 ˚C
Cabinet temp reach 40˚C
Only send alarm
Evaporator Freeze
0
-40–15˚C
Cabinet temp higher than cooling stop
point, but evaporator temp lower than 0˚C
Send alarm, and shut down compressor
System Frequent High Pressure
-
-
High pressure switch operates too much Send alarm, and shut down compressor
Controller Board Power Down Alarm -
-
No power supply to controller board
Send alarm, and shut down cooling system
Cabinet Temp Sensor Failure
-
-
Temp sensor failure
Only send alarm
Evaporator Temp Sensor Failure
-
-
Temp sensor failure
Only send alarm
Condenser Temp Sensor Failure
-
-
Temp sensor failure
Only send alarm
