User Manual

6. Maintenance
MF0150A9A Manual for ION-M23 SDARS
Page 43
6.2. Cleaning the Heat Sink of Units with Passive Cooling
 Note: Read and observe chapter 1.2 Health and Safety as well as the
instructions in section 6.1 General but be aware that for units with passive
cooling, it is possible to clean the heat sink during operation:
Caution: Risk of injury by flying particles when compressed air is used. Wear
protective clothing, especially protective glasses.
Use compressed air (max. 5 bar) to blow
out dirt inside the unit from one side to
the other (direction can be chosen
depending on on-site conditions and
accessibility).
 Note: As the fins inside the heat
sink are very large and thin, keep the
nozzle in an adequate distance from the
unit in order not to damage them, e.g. by
bending due to excessive force.
6.3. Maintenance of Units with Active Cooling
Caution: Rotating fans. Risk of injury in operation. Wear tight-fitting clothes and
disconnect mains before connecting or replacing or cleaning the fan unit.
6.3.1. Replacing the Fan Unit
Replacement of the fan unit is not required as a preventative measure. Only if an
alarm indicates a malfunctioning of a fan must the unit be exchanged.
 Note: Please observe that the fan unit can only be replaced as a whole. Do
not remove the fans separately.
Read and observe chapter 1.2 Health and Safety as well as the instructions in
section 6.1 General before starting with the replacement. Then proceed as described
in the following
Compressed
air (5 bar max.)