Incite Fire ASD 532, Operating Manual

Page: 52 / 121

Planning
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4.9 Restrictions
Notice
The following restrictions apply to the use and application of the ASD 532. For other solutions, please consult the
manufacturer.
General information and space surveillance:
•
The sampling holes of the tube network and the detector housing must be in the same climate zone (pres-
sure/temperature zone) (sampled air may have to be recirculated to the other climate zone). Pressure differ-
ences between detector housing and sampling pipe (sampling holes) are not permitted.
•
If sampling pipes with air at room temperature have to be routed through areas in which the temperature may
drop below 4 °C, the tube parts in these areas may have to be specially installed (possibly by isolating the
sampling pipe as specified by the manufacturer).
•
Applications with a high level of dust and/or high atmospheric humidity require the use of accessory parts as
recommended by the manufacturer, e.g.: Filter-box/filter unit, dirt trap box, water retaining box or manual ball
valve for sporadic cleaning of the sampling pipe using compressed air (see also Sec. 11).
•
The maximum pipe length specified must not be exceeded.
•
Several rooms may only be monitored by one and the same aspirating smoke detector if so permitted by the
relevant guideline (e.g. DIN VDE 0833-2 in Germany, Cantonal Fire Insurance Union in Switzerland).
•
For space surveillance involving premises with a height of more than 16 m, the situation must first be clarified
beforehand with the manufacturer, the insurance companies and, if necessary, the fire brigade (in some cases
larger or higher monitoring areas are possible).
•
In the event of an emergency the sampling holes must be accessible for cleaning (possibly by cleaning using
compressed air from the detector housing or under 0°C with nitrogen).
•
The fan has a noise level (possibly mount the detector housing in an acoustically insulated cabinet – e.g. ASD
sound insulation housing – or ancillary room, see also Sec. 5.4).
•
Special settings (larger airflow window, longer delay time etc.) may have to be made in areas with significant
temperature fluctuations of more than 20°C at both the sampling pipe and on the detector housing.
•
In spaces with high ambient temperatures of > 50°C and/or a humidity of > 80%, cooling sections may have to
be used in the sampling pipe.
•
Only those materials listed and approved by the manufacturer are to be used to create the system (compo-
nent of the device approval according to EN 54-20). Materials from other sources may be used only if the
manufacturer’s written consent has been obtained.
•
It is not permitted to monitor ex-zones with the ASD 532.
•
The environmental influences as listed in Sec. 4.10 must be observed.
Equipment monitoring (additional):
•
See Sec. 4.5
ASD532 Operating Manual