GEZE hold-open system FA GC 150
38
Wiring diagram
5.5.1 Manual trigger switch UTA
ú
Manual trigger switch UTA, AS500, ID 116266
Surface mounting cap, single, AS500, ID 120503
ú
Note the requirements on the installation of manual trigger switch in chap. 3.5.
ú
Installation in flush-mounted or cavity box
ú
Install in such a way that removing the wireless module and manual trigger switch is only possible after these
two assemblies have been disconnected from one another (e.g. installation of the two assemblies in two dif-
ferent flush-mounted boxes).
2,2 k
GC 175
7
Fig. 5.5.1.1
Several manual trigger switches are connected in parallel. Only connect the 2.2 kΩ resistor in the last one.
UTA
2,2 k
GC 175
UTA
7
7
Fig. 5.5.1.2
The cable to the first manual trigger switch (UTA) must be laid separately or protected.
5.5.2 Contact to the fire alarm system
Line monitoring is active if:
ú
a 2.2 kΩ resistor is connected in parallel at the contact of the fire alarm system.
ú
Connect the potential-free contact as a normally open contact
GC 175
Potential-free contact (BMA)
7
Fig. 5.5.2.1
German
institute for
construction
technology
5.5.3 Contact of the fire alarm system and manual trigger switch UTA
The general construction technique permit requires line monitoring to the potential-free contact of the fire
alarm system and to the manual trigger switch.
Line monitoring is active if:
ú
a 2.2 kΩ resistor is connected in parallel at the end of the cable.
ú
Connect the potential-free contact as a normally open contact
7
Potentialfreier Kontakt (BMA)
2,2 k
GC 175
UTA
7
Fig. 5.5.3.1
The cable to the potential-free contact (fire-alarm system) must be laid separately or protected.
5.6 Alarm output
ú
Potential-free relay output, changer, maximum 24 V, 1 A
ú
In normal operation the contact 11-12 is open, in the event of power failure or alarm closed.
ú
Do not supply alarm display from the hold-open system.
24 V external
Alarm
display
GND external
Fig. 5.6.1
5.7 Mutual triggering of two hold-open systems
ú
Two hold-open systems can trigger each other mutually. For this purpose, the alarm contact of the one lintel-
mounted smoke switch is connected with the input MRB of the other lintel-mounted smoke switch.
ú
If additional manual trigger switches are required, these are connected in parallel to the connection at the
respective input MRB.
ú
Remove jumper J1 from both lintel-mounted smoke switches.
The general construction technique permit requires monitoring of the lines between the two lintel-mounted
smoke switches.
Line monitoring is active if:
ú
jumper J3 of the two lintel-mounted smoke switches to the measuring chamber is set (2-3, see chap. 4.4),
ú
a 43 kΩ resistor is connected in parallel at both lintel-mounted smoke switches directly at the alarm output.
German
institute for
construction
technology
Potential-free contact (BMA)
German
institute for
construction
technology
