Installation Precautions - Bosch PRAESENSA Manual

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A life safety system will not operate without any electrical power. If AC power fails, the
system will operate from standby batteries only for a specified time and only if the batteries
have been properly
maintained and replaced regularly.
Equipment used in the system may not be technically compatible with the PRAESENSA
system. It is essential to use only equipment listed for service with your PRAESENSA system.
Telephone lines needed to transmit alarm signals from a premises to a central monitoring
station may be out of service or temporarily disabled. For added protection against telephone
line failure, backup radio transmission systems are recommended.
The most common cause of life safety system malfunction is inadequate maintenance. To
keep the entire life safety system in excellent working order, ongoing maintenance is required
per the manufacturer's recommendations, and UL and NFPA standards. At a minimum, the
requirements of NFPA 72 shall be followed. Environments with large amounts of dust, dirt, or
high air velocity require more frequent maintenance. A maintenance agreement should be
arranged through the local manufacturer's representative. Maintenance should be scheduled
as required by National and/or local fire codes and should be performed by authorized
professional life safety system installers only. Adequate written records of all inspections
should be kept.
1.3

Installation precautions

Adherence to the following will aid in problem-free installation with long-term reliability:
WARNING - Several different sources of power can be connected to the PRAESENSA system.
Disconnect all sources of power before servicing. Control unit and associated equipment may
be damaged by removing and/or inserting cards, modules, or interconnecting cables while the
unit is energized. Do not attempt to install, service, or operate this unit until manuals are read
and understood.
CAUTION - System Re-acceptance Test after Software Changes: To ensure proper system
operation, this product must be tested in accordance with NFPA 72 after any programming
operation or change in site-specific software. Re-acceptance testing is required after any
change, addition or deletion of system components, or after any modification, repair or
adjustment to system hardware or wiring. All components, circuits, system operations, or
software functions known to be affected by a change must be 100 % tested. In addition, to
2021.12.21 | V0.15b | F.01U.402.882
Strobes can, under certain circumstances, cause seizures in people with conditions such
as epilepsy. To reduce this risk make sure strobes in the same visual area are
synchronized.
Studies have shown that certain people, even when they hear a fire alarm signal, do not
respond to or comprehend the meaning of the signal. Audible devices, such as horns and
bells, can have different tonal patterns and frequencies. It is the property owner's
responsibility to conduct fire drills and other training exercises to make people aware of
fire alarm signals and instruct them on the proper reaction to alarm signals.
In rare instances, the sounding of a warning device can cause temporary or permanent
hearing loss.
Underwriters Laboratories Listing Document (ULLD)
PRAESENSA
Bosch Security Systems B.V.