5. Maintenance
MF0150A4A.doc
Manual for ION-M7P/17EHP/19P
Page 45
5.2. 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.
Note:
NEVER blow out the fan unit with compressed air. This would cause
permanent damage to the unit.
Read and observe chapter
1.2 Health and Safety
as well as the instructions in
section
5.1 General
before starting with the replacement.
1. Switch off the Remote Unit. Make sure that mains power is disconnected for the
following replacement procedure. Then, proceed as follows:
2. Unscrew the four Pan-head screws
(two at each side of the cabinet) and
remove the fan cover.
3. Unscrew and disconnect the fan
connector and unscrew the four Pan-
head screws the fan plate is fastened
to the cabinet. Take out the fan unit,
replace it by the new one, fasten the
four Pan-head screws for the fan unit,
re-connect the fan connector and
mount the cover to the cabinet.
Fan connector
