MBD1201
Fire door control unit
Functional Solutions for 25 Years
.nerival.fi sales@nerival.fi Nerival Oy
Safety
Only an authorized and experienced electrician
should operate, operate, service, or install this unit.
Use only insulated tools when installing the device.
Note!
angerous voltages and currents are present in the
device when the internal fuses are on or off.
This manual must be read carefully and understood
by all operating personnel.
If there is the slightest ambiguity in the structure,
operation, components or safety of the system, the
supplier must be contacted.
Check that the circuit boards are securely fastened
and that they have not been damaged during
transport.
If batteries are used, they are always
electrochemically active.
o not short-circuit the battery terminals.
Installation
Install the device on a wall surface.
Free space on all sides at least 100mm.
Connect the voltage 230VAC.
The mains voltage LE lights up.
Check that the output voltage is correct.
If necessary, adjust the output voltage with V1 on
the circuit board.
If the mains indicator does not light up, check the
supply voltage and input fuses.
Connect the battery and then the load.
The detector loop must not be short-circuited.
Connect a 4.7kΩ terminating resistor in parallel
with the last detector.
When using the release button, connect a 470Ω
resistor in series with the button.
Press the release button or the Fel/test (fault/test)
button to test the fire.
Check the connections carefully before using the
device.
etector loop
max. 6pcs detectors 4,7kΩ
0,5W
470Ω
0,5W
Release-
button
Electromagnetic door holder
24V C max. 0,5A
Electromagnetic door holder
(delay 5 seconds)
Siren continuous
Siren pulsed
Battery 24V C
2pcs 12V C 0,8Ah
+24V C
COM
NC Alarm relay
NO max. 24V C/1A
COM
NC Fault relay
NO max. 24V C/1A
L
N
Wiring example
230VAC
V1
