Siemens OOH740 - Connection of the Detector Heating Unit

Mounting / Installation
Detector heating unit FDBH291
5
91 |
108
Building Technologies
A6V10305793_m_en_
--
Fire Safety
2016-02-15
5.12.2 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.
NOTICE
Risk of icing
Malfunction
●
To ensure smooth operation, the detector must be checked regularly for icing.
Figure 22: Connection diagram for detector heating unit FDBH291
1 Control panel supply (monitored) 2 Control panel
+
-
DBZ1190-AA
-
+
LINE
FDBH291
-
+
FDBH291
DBZ1190-AA
1
2
-
+
1a 1b
5 6
1a 1b
5 6
+
DB721
DB110xx
DB721
DB110xx