5
5
EN
5. MALFUNCTIONS • WARNINGS
FAULT
REASON – ACTION
NOTES - must be observed!
1
Inserting the mains plug
• A
and
B
are not illuminated
• Ventilator is off
1. No current in the mains socket or
2. efective fuse in fullymains plug is inserted insulated
socket or
3. defective energy saving lamp illuminant.
The C13 cable must be removed before replacing the fuses
2
after the self-test
• C
and
D
flash
• 5 beep sounds
• Ventilator is off
1. Possible defect of the device or
2. Defect of the monitoring circuitry
please contact your dealer or our costumer service:
+49 6051 92 20 0*
(* at local rates in the german fixed network)
3
during operation
• A
and
C
are illuminated
• intervall sound
(30 sec.)
• Ventilator is off
1. Foreign matter may possibly be in or on the (air flow)
extraction air opening (to be removed) or
2. Possible defect of the integrated extraction air
ventilator.
please contact your dealer or our costumer service:
+49 6051 92 20 0*
(* at local rates in the german fixed network)
4
during operation
• A
is illuminated
• D
flashes
The filter has almost reached its saturation limit; a timely
(filter monitoring) replacement is called for!
please contact your dealer or our costumer service:
+49 6051 92 20 0*
(* at local rates in the german fixed network)
5
during operation
• A
and
D
are illuminated
• Alarm tone 2
sounds out
every hour
• Ventilator is off
The filter is almost fully saturated and the ventilator has
been switched off. The filter must now be changed quickly.
please contact your dealer or our costumer service:
+49 6051 92 20 0*
(* at local rates in the german fixed network)
6
during operation
• A
and
D
are illuminated
• Alarm tone 1
sounds out
every hour
The permissible operating time of the filter has expired.
The filter must now be changed quickly.
please contact your dealer or our costumer service:
+49 6051 92 20 0*
(* at local rates in the german fixed network)
ALARM SOUNDS
There are two different alarm sounds. If both are simultaneously activated, they ring out after one
another at an interval of approx. 6 seconds.
Tone sequence 1: short – short – long
Tone sequence 2: long – short – long – short
6. VENTILATION ADJUSTMENT • MONITORING
The ventilator capacity is sufficient for a minimum ten-fold change of air for those cabinet models
listed under the „Purpose“ item.
The faultless ventilation function is automatically controlled by a monitoring electronics system.
A differential pressure measurement device monitors air volumes in the extraction air shaft.
An alarm is triggered (
C3
) when the air rated value is undercut by around 50 %. The optical alarm
only stops when the rated value is again attained.
7. VOLTAGE-FREE ALARM CONTACT
The supplied three-pin plug is needed for using the voltage-free alarm contact. Only the two exter-
nal terminals are connected to the plug! Internally a contact is switched (opened) as soon as the
extraction air inlet on the top reaches the prescribed volumetric flow. An extraction air fault or filter
saturation can therefore be signalised in this way. Furthermore it is signalised when the extraction
air inlet on the top is disconnected from the mains.
KUNDE
CAUTION:
The voltage-free alarm contact
is not to be used for operating
large loads.
It is only envisaged for sig-
nalling a malfunction of the
extraction air inlet on the top
by means of a signalling lamp,
horn and the like.
CUSTOMER
