Mounting / Installation
Base attachment wet BA721
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Building Technologies
A6V10305793_m_en_--
Fire Safety
2016-02-15
Mounting for surface-mounted cable entry:
1. Break out the areas required for cable entry in base attachment BA720 (1).
2. Insert the cables into the base attachment BA720 (1) through the broken-out
areas.
3. Install the base attachment BA720 (1) on the ceiling together with a detector
base (2).
4. Connect the cables in the detector base (2).
Figure 14: Surface-mounted cable entry with base attachment BA720
1 Base attachment BA720
2 Detector base DB72x
5.6 Base attachment wet BA721
Base attachment wet BA721 is for surface-mounted feed lines in humid and cold
environments. The cables are inserted using M20 x 1.5 metal cable glands (Fig. 3).
Protective cages DBZ1194/FDBZ294 can be installed on 'base attachment wet
BA721'.
●
Protective cage DBZ1194 (Fig. 3) protects the detector against mechanical
damage.
●
EMC-protective cage FDBZ294 (Fig. 4) protects the detector against
mechanical damage and electromagnetic fields.
Note the dimensions of the protective cages (Fig. 3) before installing base
attachment wet BA721!
You will find information on connecting detector heating unit FDBH291 in the
'Connection of the detector heating unit' chapter.
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