constant relative humidity below 90%. If the transport casing has
been removed, the unit also has to be protected against dust.
The UPS system contains tightly sealed, maintenance-free lead
accumulators that may be damaged if stored in a discharged state for
a prolonged period of time or if exposed to high temperatures. For
this reason, the storage time must not exceed six months at +20°C,
three months at +30°C, and two months at +35°C with reloading the
accumulators. Please ensure that the interval between two accumu-
lator charges is no more than six months.
CAUTION!
Please ensure that the UPS is switched off during assembly. Also
ensure that the main switch and its auxiliary contact securely turn off
the UPS after turning the main switch to the "off" position. This
makes certain that the UPS is only activated during a power cut .
OPERATIONAL AVAILABILITY OF THE UPS
As the UPS must always be ready to use in cases of emergency, it
has to be checked regularly. Its operational availability (standby time)
must be checked at regular intervals of six to 12 months or whenever
there are signs of operational availability becoming impaired. Inspect
all warning, indicator and operating components of the UPS.
As described in the UPS operating instructions, you must regularly
check the operational availability to ensure that the unit is functioning
at all times. Please follow the instructions closely.
A defective UPS system must be replaced immediately with a new
unit of the same specifications.
UPS LIFE SPAN
The availability of the UPS depends on accumulator performance.
The life of the accumulators is strongly influenced by environmental
temperature. They achieve the longest life span at temperatures
between +20°C and +25°C.
To ensure operational availability for the benefit of users, the entire
set of accumulators must be replaced with a new set of the same
specifications after a period of four years.
Please dispose of the old accumulators in accordance with your local
waste regulations.
Should you experience any problems with the UPS or require safety-
related information, please contact the manufacturer at the address
stated in the operating instructions.
44 Installation Manual System »bp308« – Control System »bp308«
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