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Maintenance and Installation
Operation and maintenance of hazard warning systems (HWS)
Requirements as per VdS guidelines and VDE 0833-1 and 2:
The operator of the HWS must have received proper training or must have the work performed by someone who
has received proper training. The operator or the person he/she commissions must take responsibility for
ensuring that inspections are carried out when there are signs that the constant readiness of the system may
have been impaired, in event of irregularities in the functioning of the system and in cases of alterations (e.g. in
the use or design of the room) that may influence the monitoring tasks of the HWS. All necessary maintenance
and alteration work on the HWS must be carried out immediately by the operator or the trained person who
he/she commissions. HWS must be regularly serviced by an electrician. If there are faults, the HWS must be
immediately inspected and corrected by an electrician.
Inspections
Perform inspections according to VDE 0833-1 at least four times per year at roughly equal intervals.
Repairs
Must be carried out immediately if it is confirmed during an inspection that there unauthorised deviations from
the nominal conditions of the HWS.
Maintenance work
Perform maintenance work according to the manufacturer instructions, however no less than once per year.
This includes, for example: maintenance of system parts, replacing elements with limited service life (e.g. light
bulbs), alignment, setting and adjusting of components and devices. The specifically required annual
maintenance work may be performed along with the quarterly inspections.
In addition, the HWS must be inspected every five years to ensure that it fulfils all requirements of this
standard..
Regular tests
In principle, the statutory standards, regulations and local requirements apply for the maintenance of the voice
alarm system. However, these may be restricted by the manufacturer's specifications. For example, the
manufacturer may stipulate that the maintenance intervals or replacement cycles of the devices must be shorter
than required by law.
•
Regular tests must be carried out to ensure that there is not and will not be any restriction on the emission
of sound from the loudspeakers or on their function
•
Regular tests must be carried out to check whether rooms excluded from the public address system in the
planning documents now need to be included in the public address system.
•
Regular tests must be carried out to ensure that when the voice alarm system or even one of the individual
parts of the voice alarm system is switched off or malfunctions there is a suitable backup measure available
(e.g. security personnel with megaphones etc.).
•
Loudspeaker testing must be carried out at least once per year using suitable audio tests. If there is any
doubt, a measurement must be carried out to prove the speech comprehensibility.
•
In accordance with EN 60849, a maintenance contract must be concluded.
•
Maintenance work must be carried out in accordance with DIN VDE 0833-4 or TRVB S 158.
•
All events such as fault / replacement / maintenance / calibration of the VAS must be documented
in a log book (Part No. 798671).
•
The operating log must be stored near the system (or on the operator's premises).
Important information
After an interruption of the power supply due to maintenance or if call stations are relocated during
maintenance, the proper functioning of each individual call station must be checked.
The fire department / evacuation call stations in particular must be checked by executing relevant
functions as well as performing a "test announcement".
FB 798666.HO.GB0 / 07.13
Operation Instruction VARIODYN
®
D1 Comprio
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