Idiomas disponibles
Idiomas disponibles
GB
Test mode (testing the cooling operation of the unit)
The test mode triggers the cooling unit to commence unconditional cooling for 90 s. This means that the internal
and external fans as well as the compressor are switched on. Errors and alarms have priority, but the "door
contact open" error is ignored.
Normal operation is automatically resumed after 90 s.
Test operation sequence
Requirements
-
Cooling unit is ready for operation.
-
LED light of the display control unit illuminates green.
DANGER – Life-threatening danger due to electric shock
Condensation may form on the cooling unit when the switch cabinet door is open and during extended
test operation.
This may lead to an electrical hazard in the vicinity of live parts.
The test mode must therefore only be implemented by trained and authorized electrotechnical
specialists.
Procedure
1. Press the Back + Set buttons simultaneously for at least 5 s.
2. Fans and compressors start up.
3. The countdown timer is shown in the display:
(Alternating with the ACTUAL temperature)
time remaining in test mode in seconds
4. The cooling unit resumes normal operation after 90 s. If the Back + Set button combination is pressed again
during the countdown, the test mode starts again with the countdown of 90 seconds.
The test mode may be started as often as necessary.
If the minimum temperature alarm is triggered (Lit_, falling below the lower temperature limit), check the affected
device. If the device is part of a multi-master system, the cooling requirement can be forced from another device.
If this is the case, the proper functioning of each device involved in multi-master operation must be checked.
086100110a © Pfannenberg GmbH
Werner-Witt-Straße 1
D-21035 Hamburg
http://www.Pfannenberg.com
Supplementary sheet
Test mode and multi-master operation
Test mode
Multi-master operation
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09/2019
