Operating Instructions | symphony 5.3 A – 06/2009
7
Handling and control
7
Handling and control
42
Delay time reset:
If the set nominal value is reached during the specified period,
the delay time is reset to 1 min!
Failure messages
Failure cause:
When the temperature nominal value and/or the CO
2
nominal
value is reduced, a failure message (code 101/201) may appear
due to the slow reaction time of the atmosphere within the
work space. Therefore, the device doors should be opened for
some time if the nominal values are reduced
1. The audible alarm sounds:
2. Silence the audible alarm:
Press any key.
The audible alarm is silenced.
3. Read failure codes:
Keep the
key depressed.
If no failure is detected, each display shows three hyphens.
Indication of failure code
If the system detects a failure, the display that is assigned to the cor-
responding control circuit shows a failure code. Example: If the tem-
perature display shows failure code 101, a failure in the temperature
control circuit was detected.
NOTE!
Failure codes:
For a list and a description of the failure codes, please refer to
failure code list in this section!
