5. Maintenance
Page 46
MF0150A4A.doc Manual for ION-M7P/17EHP/19P
5.3. Cleaning the Heat Sink
To avoid a malfunctioning of the Remote Unit, the heat sink should be cleaned in
case of pollution. In order to prevent any damage, proceed as explained in the
following.
Note:
Read and observe chapter
1.2 Health and Safety
as well as the
instructions in section
5.1 General
before starting with the replacement
procedure. Then, proceed as follows:
1. Switch off the Remote Unit. For the following procedure ensure that mains power
is disconnected and that the fans have stopped rotating.
2. Before any cleaning action,
remove
the fan cover
and
the fan unit
from the
Remote Unit as described in the previous section
5.2 Replacing the Fan Unit
.
Caution
: Risk of injury by flying particles when compressed air is used. Wear
protective clothing, especially protective glasses.
3. Use compressed air (max. 5 bars) to blow out any dust, dirt, or other debris in the
heat sink from back to front.
4. In case the dirt cannot be blown out completely from the heat sink and parts of it,
still stick to the ribs, clean the parts concerned carefully from the front with the
soft
brush.
Take care that the material is not scratched or damaged
.
5. After cleaning the heat sink, mount the fan unit and the fan cover again according
to section
5.2 Replacing the Fan Unit
. Then, reconnect mains power and power
up the unit.
