Bosch PRAESENSA, Руководство пользователя

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68 en | Installation wiring PRAESENSA
2021.12.21 | V0.15b | F.01U.402.882
Underwriters Laboratories Listing Document (ULLD)
Bosch Security Systems B.V.
temperature sensor is not mounted correctly, the battery lifetime may be considerably
reduced. When the sensor is not connected, the battery charger will be switched off. Only use
the temperature sensor assembly that is delivered with the device.
i
Notice!
The battery must be an UL‑listed battery with a maximum capacity of 230 Ah. See also Battery
calculation, page 24. The battery shall:
- be rechargeable;
- be suitable to be maintained in a fully charged state;
- be constructed for stationary use;
- be marked with the type designation and date of manufacture;
- be of the sealed type;
- be mounted in in accordance with the manufacturer’s data.
A properly marked and mounted VRLA (Valve Regulated Lead Acid) battery of 12 V fulfils
these requirements. SLA (Sealed Lead Acid) and VRLA are different acronyms for the same
battery. This battery type is maintenance-free, leak-proof and position insensitive. Batteries of
this kind have a safety vent to release gas in case of excessive internal pressure build up.
AGM (Absorbed Glass Mat) refers to a specific type of SLA or VRLA and can be used also.
!
Caution!
1. The battery must be electrically floating. Never connect any battery terminal to ground.
The battery terminals must be wired individually to the battery connection terminals of the
PRA-MPS3.
2. A battery may not be connected to more than one PRA-MPS3, this means that it cannot be
shared by multiple power supplies.
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Notice!
1. To prevent damage to the battery always check the depth of the threaded insert of the
terminals before tightening the bolts. If needed, use shorter bolts.
2. Make sure that all connections are tightened with the correct torque. Not only to prevent
damage, but also to keep the contact resistances as low as possible. It is good practice to
keep the red and black battery cables together and aligned for most of their length, using
cable ties or heat shrink sleeves.
3. It is not allowed to connect any external load to the battery directly, as this will disturb the
charging process.
Battery fault reporting
The battery is monitored continuously to prevent damage to the battery and to make sure that
it is available in good state as a backup power source to the system in case of mains power
failures.
Make sure that this battery can handle a charging current of 8.8 A and the maximum current
draw of the load, see section Accurate battery size calculation.