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Alarm message Countermeasure
CP ALARM
Maximum volumetric flow
reached. The measured
Pressure is
pressure is still lower than
too low.
the required pressure.
Modify the volumetric flow.
Check whether the
Clean any line that is dirty
DATA
Data error.
ERROR
Alarm display
[15] = On.
Relay R1 in
alarm state
Modify the volumetric flow.
(Relay
LED = On)
Tab. 5: Fault rectification
Check the ventilation
system.
Modify the layout of the
ventilation system.
pressure lines [6] and [14]
are dirty.
and replace them with
standard hoses of the
same quality and with the
same internal diameter if
necessary.
Make sure the pressure
line is correctly fitted at
the connection piece.
Press RESET button,
resets system to factory
setting. Contact the
Service Hotline if the
fault continues.
Check the ventilation
system.
Modify the layout of the
ventilation system.
14. In the case of a repair
Danger to life.
Unit is powered up.
Disconnect the GRD unit
DANGER
completely from the mains
power supply. To do this,
remove the unit roof [1].
Switch the GRD unit off by
setting the service switch to
position "0" and secure it
against being switched back
on with a padlock.
Danger of injury from rotating
impeller after switching off!
Wait until the impeller is
DANGER
statio-nary before opening
the housing.
Risk of cuts from metal housing
plates with sharp edges.
Wear protective gloves.
CAUTION
15. Dismantling
Danger to life.
Unit is powered up.
Switch mains fuse and service
DANGER
switch off.
Dismantling should only be carried out
i
by a trained electrician.
16. Disposal
Not in domestic waste.
i
The unit contains in part material that
can be recycled and in part substan-
ces that should not end up as
domestic waste.
Dispose of the unit once it has reached the
end of its working life according to the
regulations valid where you are.
GB
21
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