Siemens FS20 Mounting & Installation page 110

Mounting and installation of the compact control panels
5
Power supply (150 W)
110 | 354
Building Technologies
Fire Safety
● The connection lines marked in bold of the additional cable tree (3) and the
existing cable tree (2) must be wired again when installing the second power
supply (slave).
● In order to avoid operating temperature differences, the two power supply units
must be mounted next to each other in the same housing.
● The batteries and the system supply must only be connected to the master
power supply unit.
● Only one temperature sensor must be connected to the master power supply
unit.
● The temperature sensor must be fitted close to the batteries. (You will find
precise details in document 008851).
NOTICE
Damage to the power supply
Different versions (A4/A5) of the power supply (150 W) may not be switched in
parallel.
008851_s_en_--
2016-01-27