4
Undertaking modernization
Step 1: Detector modernization
20
Building Technologies
A6V10323158_d_en_--
Fire Safety
2015-04-09
Variant 2: The existing detector base is replaced
1. Use one of the FDB221, FDB221-AA or FDB222 detector bases.
2. Install the detector to replace DO1131A or SDF1200/2200 directly on the new
detector base.
3. Install an additional, standard resistor to replace another detector.
– Use the table below to determine the resistor that corresponds to the
existing detector type.
– Install the selected resistor.
– Use the auxiliary terminal DBZ1190-AA for multiple assignment.
D 113 A
T
2
DO 1131A
T
DT1131A
SDF 00
31
SDT2100
+
-
+
-
+
-
R
DO113 A
1
R =
Ω
+
R = 10 k
Ω
±2 k
Ω
(0,25 W)
R = 18 k
Ω
±2 k
Ω
(0,25 W)
R = 27 k
Ω
±2 k
Ω
(0,25 W)
1
Variant 2: Resistor connection
1
R =
∞Ω
Do not install a resistor.