Siemens S5-135U/155U System Manual page 133

Caution
!
Ensure correct polarity when inserting the battery or applying backup
voltage.
Warning
!
Risk of danger to persons and property, danger of giving off harmful
substances.
If handled incorrectly, a lithium battery can explode. If disposed of
incorrectly, old lithium batteries can release harmful substances. You must
therefore observe the following guidelines:
Replacing the The expected service life of the fans (see Technical Specifications) depends
Fans
on their operating time, ambient temperature and ambient conditions. In the
event of fan failure during operation, subsequent damage to modules, for
example, is avoided by the activated fan monitor (jumper F-R closed); the
power supply unit is switched off.
In individual cases, a preventive replacement of fans at suitable intervals may
be advisable. Proceed as follows to replace the fans:
The order numbers for the backup battery and fan unit can be found in the
ordering information.
System Manual
C79000-G8576-C199-06
Central Controllers and Expansion Units Power Supply Units
Do not throw new or discharged batteries onto a fire and do not solder
onto the body of the cell (max. temperature 100 C (212 F)). Do not
recharge them. Order your replacement battery from Siemens only (for
order number see ordering instructions). This ensures that you only use a
short-circuit-protected type.
The lithium battery is subject to regulations for hazardous materials. You
should observe these regulations when you shipthe battery, for example,
by using the original packaging. Used batteries should be returned to the
manufacturer or a recycling station if possible or disposed of as
hazardous waste. The guidelines for transporting hazardous materials
should be observed.
Step
1 Disconnect power from the power supply.
2 Remove the power supply.
Slacken the fixing screws of the fans.
3
Pull off the plug-in contacts of the fan supply.
4
5 Connect the plug-in contacts of the new fans.
6 Tighten the fixing screws of the fans.
Refit the power supply.
7
8 Switch the power supply on.
Action
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