Siemens FDOOTC241 - Connection of the Detector Heating Unit; Protective Cages

Mounting / Installation
65
Building Technologies A6V10209291_f_en_--
Fire Safety & Security Products 05.02.2010
5.9.2 Connection of the detector heating unit
 Connect the cables for the monitored supply from the control panel and the
detector heating unit to the supplied micro terminals DBZ1190-AA.
 The cables can be placed in the same cable harness as the detector line or
separately.
 Several detector heating units can be connected in parallel.
 Detector heating units require a separate supply.
WARNING
Openings on detector housing at risk of clogging by snow and ice
This prevents quick and correct detection of a danger status
 Check the openings on the housing of the detectors affected on a regular
basis.
 Remove snow and ice immediately from the openings on the housing.
+
-
+
-
+
-
+
-
DBZ1190-AA
-
+
LINE
FDBH291
+
-
+
-
+
-
-
+
FDBH291
-
+
DBZ1190-A
A
FDB221
/
FDB221-A
A
FDB222
FDB221
/
FDB221-A
A
FDB222
1
2
1
2
33
4
5
Connection diagram for detector heating unit FDBH291
1 Detector base 4 Control panel
2 Micro terminals 5 Control panel supply (monitored)
3 Detector heating unit
5.10 Protective cages
Protective cage DBZ1194 protects the detector against mechanical damage.
EMC-protective cage FDBZ294 protects the detector against mechanical damage
and electromagnetic fields.
See also
 Protective cage DBZ1194 [ 38]
 EMC-protective cage FDBZ294 [ 38]