User manual

7 Operation
EN
28 Rittal enclosure cooling unit
may continue to operate the unit as normal while the
self-test is being carried out.
 Click on the "Self-test" symbol.
 Confirm the start of the self-test with "OK".
While the self-test is being carried out, a progress indi-
cator will appear on the display. Once the test is com-
plete, either the message "Unit OK" or "Check error" will
be displayed.
 If applicable, use the error list to determine which mal-
function applies.
7.5 System messages
We distinguish between three different types of system
messages on the unit:
– Malfunctions
–Errors
– Servicing
If a corresponding message applies, the "System mes-
sages" symbol is displayed in the menu bar (fig. 39,
item 13). A list of all possible system messages may be
found in section 7.6 "List of system messages".
 Click on the "System messages" symbol.
A list of all active system messages will be displayed.
The individual messages are arranged in ascending or-
der as they occur according to the above three catego-
ries.
If an error message can only be resolved by the Rittal
Service team, the "Service" symbol will additionally
appear after the error message.
 In such cases, please contact Rittal Service (see sec-
tion 14 "Customer service addresses").
7.5.1 Occurrence of a malfunction
In the event of a malfunction, the start screen will be su-
perimposed with an error message.
Fig. 41: Screen in the event of a malfunction
Key
1Superimposed
2 Menu bar in red
The start screen is superimposed with a message in the
following three cases:
1. There is a malfunction on the unit itself.
2. There is a malfunction on one of the units in the mas-
ter-slave combination.
3. The enclosure door is open and a connected door
contact is emitting a corresponding message.
If the malfunctions cannot be resolved by the operator
himself, the Service symbol will additionally be displayed
(Fig. 39, item 14).
 Contact the Rittal Service team if you are unable to re-
solve the malfunction yourself (see section 14 "Cus-
tomer service addresses").
7.5.2 Display in case of errors
If errors have occurred or servicing is required, the "Sys-
tem messages" symbol will appear in the menu bar (see
section 7.5 "System messages").
Most system messages are reset automatically once the
fault has been resolved.
Fig. 42: Screen showing error messages
Key
1 "Errors" menu
2 Error message
If an error message applies that cannot be resolved by
the operator himself and which is not reset automatical-
ly, the "Service" symbol will appear after the error mes-
sage and in the control bar next to the symbol for system
messages (fig. 43, item 2).
Fig. 43: Screen showing error messages
Key
1 "Errors" menu
2 Error message
3 "Return" button

Contact Rittal Service (see section 14 "Customer ser-
vice addresses").
 Acknowledge the error message by pressing the "Re-
turn" button.