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Chapter 6 • Safety devices
6
Safety devices
By installing the Automatic Purging Unit F-BO-AFE70 in the customer's pipe network, and
through the connection to the other components also provided by the customer, namely the aspirat-
ing smoke detector, the fire detection control panel, the electrical power supply as well as the com-
pressed-air supply, a machine in the sense of the Directive 2006/42/EC is created.
Therefore the adherence to this directive must be ensured during the whole installation; therefore
corresponding measures have to be taken which depend on the system construction, the installed
components as well as the use of the building, and which can also exceed the minimum require-
ments listed below. Therefore a corresponding danger evaluation is required in any case.
The following basic minimum requirements must always be fulfilled in any case and at any time:
A protection against contact with the movable valve piston of the Purging unit must be in place;
this requirement is fulfilled if both 25mm push-in fittings have been installed as described in
Chapter 5.1: „Final assembly" and suitable pipes of the customer's pipe system have been inser-
ted in such a way that it is not possible to enter and touch the valve piston without a tool, also
compare Chapter 8.2: „Connection to the sampling pipe and to the aspirating smoke detector".
The possibility that the compressed air that is introduced into the pipe system during the Pur-
ging process can eject parts which can cause injuries or damage to property, must have been
prevented altogether. This can be done, for example, by altogether preventing such parts from
entering the compressed-air system or the piping, or by making sure that at the time of the Pur-
ging process nobody can stay in the danger zone, or by implementing other suitable protective
measures (e.g., deflectors) in the system.
All parts that will be pressurised during operation (for example, pipes, fittings, valves, hoses,
pressure regulators and filters) must have been approved for the application of compressed air
within the pressure range that is to be expected.
A device must be installed by means of which the system can be easily shut down both in the
event of an emergency as well as during normal operation. This is ensured, for example, if the
compressed-air supply to the Automatic Purging Unit F-BO-AFE70 can be interrupted easily
and quickly by means of a hand-actuated pneumatic valve. This valve must be freely accessible
and has to be appropriately labelled or signposted with „EMERGENCY STOP".
If, in spite of all the safety precautions and protective measures that have been taken, unavoidable
risks still exist, the necessary warnings and warning devices have to be put up.
A failure to meet the requirements described here can have serious consequences for life,
limb and property; therefore make sure that all required devices are in place and function
flawlessly.
User Manual Series F-BO-AFE70
I56-4252-010
D200-104-00
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