Version No. 1-1 - 04.05.2021
Doc. No. 994274002
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conditions. Should you still need to change the fan, please take note of the following:
Danger from electrical voltage
Maintenance work on the unit must be carried out by specialists (qualified electricians). The
personnel must ensure that for the duration of the work the unit and the cabinet are
disconnected from the electrical supply and protected against unauthorized reconnection.
Disconnect the unit from the mains
Remove the unit cover
Remove the fixing screws from the relevant fan
To replace the cold side fan the PC-board must also be removed
Disconnect the fan cable from the PC-board
Mount a new radial fan
Danger to the unit through incorrect work.
Make sure that the cabinet fan or the ambient fan are not misplaced in the unit as they are
different. Ensure that the correct polarity is maintained. The fans should have clockwise
rotation.
Replace the 4 fan fixing screws
Connect the fan cable to the PC-board and replace the board if necessary
Dispose the old fan according to the environmental laws and
regulations.
16. Transport & Storage
Malfunction due to transport damage
On delivery the carton box containing the unit must be examined for signs of transport damage. Any transport
damage to the carton box could indicate that the unit itself has been damaged in transit which in the worst case
could mean that the unit will not function.
The unit can only be stored in locations which meet the following conditions:
temperature range: - 40°C to + 70°C
Relative humidity (at 25°C): max. 95 %
Returning the unit
To avoid transport damage the unit should be returned in the original packing or in a packing case and must be
strapped to a pallet. If the unit cannot be returned in the original packing please ensure that:
A space of at least 30 mm. must be maintained at all points between the unit and the external packing.
The unit must be firmly fixed in the packing.
The unit must be protected by shock resistant padding (hard foam corner pieces, strips or cardboard
corner pieces).
