User manual

Rittal enclosure cooling unit 29
7 Operation
EN
7.6 List of system messages
The applicable error messages are displayed with the
corresponding symbol in the Errors list (see section 7.5
"System messages"). Extended information for resolv-
ing individual faults may be found in this section.
Contact details for the Rittal Service team can be found
in section 14 "Customer service addresses".
System message Alarm relay output
(factory setting)
Troubleshooting measures/solutions
Door open – Please close the enclosure door and check the door contact switch.
The error message will terminate automatically approximately 30 sec-
onds after it has been resolved.
Interior temperature too
high
– The measured interior temperature exceeds the set alarm limit for your
cooling unit.
Please check any maintenance and error messages, and check the rat-
ing of your cooling unit. For any further questions, please contact Rittal
Service directly.
Change filter – The filter mat in your cooling unit is dirty. Please replace or clean the filter
mat and confirm this by pressing reset in the list of system messages on
the cooling unit display.
Clean condenser – The condenser in your cooling unit is dirty. Please remove the top lou-
vred grille and clean the heat exchanger, e.g. using compressed air.
The error message will terminate automatically approximately 30 sec-
onds after it has been resolved.
Air routing EC 1 The air inlet or outlet in the external circuit is blocked. Please remove the
blockage and ensure that minimum distances from the air inlet or outlet
are observed.
Air routing IC – The air inlet or outlet in the internal circuit is blocked. Please remove the
blockage and ensure that minimum distances from the air inlet or outlet
to components inside the enclosure are observed.
EEV defective – A malfunction has been detected in the electronic expansion valve.
Please contact your Rittal Service.
External temperature too
high
– Your cooling unit is being operated outside of the admissible ambient
temperature. Please ensure that the ambient temperature does not ex-
ceed the admissible range (-20°C…+60°C).
Refrigerant shortage 2 Your cooling unit is reporting a lack of cooling in the active refrigerant cy-
cle. Please contact the Rittal Service team immediately. The system mes-
sage will need to be acknowledged manually once the cause has been
rectified.
Condensate warning 1 Please check whether the condensate water drain of your cooling unit is
blocked, and remove the blockage. If you are unable to resolve the fault,
please contact your Rittal Service team.
Tab. 15: Error messages