Planning
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ASD 531, Technical description, T 140 416 en
4
Planning
4.1
General aspects of planning
4.1.1
Standards, regulations, guidelines, approvals
Sec. 4 “Planning” below is a guideline for planning the ASD 531 aspirating smoke detector. These guidelines address the di-
rect application only insofar as it applies to compliance with EN 54-20 and is required to ensure technically trouble-free opera-
tion.
Notice
The use of special fire alarm systems such as the ASD 531 is subject in some cases to country-specific regula-
tions and guidelines and must therefore be approved by the relevant technical bodies and authorities (insurance
companies) prior to implementation.
Notice
For many uses that are country, facility and application specific there are planning guidelines, application exam-
ples and applicable regulations and directives.
These documents can be requested from the manufacturer of the ASD 531 system or from the responsible tech-
nical bodies and authorities.
Danger
The country-specific regulations and guidelines apply as a matter of principle to the intended use, planning and
application of the ASD 531 aspirating smoke detector. In any case the country-specific specifications always take
precedence over the planning specifications outlined below.
The ASD 531 aspirating smoke detector complies with the requirements of European Standard EN 54-20, Class A to C. The
following applies:
•
EN 54-20, Class A
high sensitive
•
EN 54-20, Class B
sensitive
•
EN 54-20, Class C
standard
4.2
Area of application
To comply with a required system configuration, the ASD 531 can be connected via its potential-free change-over contacts or
by using control-panel-specific line modules (e.g. XLM 35) to all common fire alarm systems virtually without restrictions. The
following factors determine which system configuration is best suited and should be used:
•
Laws, regulations, guidelines
•
Customer requirements;
•
System type and area of application;
•
Circumstances specific to the building
•
New system, replacement of an existing system, expansion
•
Cost/benefit ratio
