Technical function description WSC 304 01
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Smoke control unit - WSC 304 01
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Smoke and heat extraction system alarm trip:
Break glass unit:
:
Break the glass in the break glass unit! Press the red button. The smoke extraction opens.
An acoustic alarm signal sounds (continuous sound) in the break glass unit.
All ventilation functions are out of operation.
Display:
The red alarm LED in the smoke control unit and the red LED in the break glass unit are lit.
Smoke detector:
If smoke develops, the smoke extraction system automatically opens.
An acoustic alarm signal sounds (continuous sound) in the break glass unit.
All ventilation functions are out of operation.
Display:
The red alarm LED in the smoke control unit, the red LED in the break glass unit, and the red LED at
the tripped automatic detector are lit.
Resetting a tripped smoke control unit:
Press the „CLOSE button“ in the break glass unit or the „Reset button” in the smoke control unit.
The acoustic alarm signal in the break glass unit stops sounding.
The ventilation functions are operational again once the smoke extraction system has closed.
(Prior to resetting, blow out or replace the detector after it was tripped by an automatic detector).
Display:
The red alarm LED in the smoke control unit, the red LED in the break glass unit, and the red LED at
the tripped automatic detector extinguish.
Tripping caused by high temperature:
The smoke control system automatically trips if the temperature inside the smoke control unit exceeds 70°C.
An acoustic alarm signal sounds (continuous sound) in the break glass unit.
Display:
The red alarm LED in the smoke control unit and the red LED in the break glass unit are lit.
The yellow malfunction
LED in the break glass unit flashes.
Resetting a trip caused by high temperature:
The smoke extraction system can be closed again by pressing the „Reset button“ in the smoke control unit or
the „CLOSE button“ in the break glass unit.
After operating the CLOSE function, an acoustic pulse tone sounds, and the flashing malfunction LED is only
displayed in the break glass unit. The green operation LED remains lit as a special fault diagnosis.
Operating the ventilation button, OPEN or STOP will lead to the tripping
of another alarm.
Note:
The built-in thermal switch will then be irreversibly destroyed. The smoke control unit has to be returned for
checking.
Alarm trip caused by a malfunction signal:
When this function is activated (SW2/1 = ON), the smoke control unit will trip
in the event of a motor, smoke
detector or break glass unit circuit malfunction. An acoustic alarm signal sounds (continuous sound) in the
break glass unit.
No trip occurs as a result of a malfunction in the mains or battery circuit.
Display:
The red alarm LED in the smoke control unit and the red LED in the break glass unit are lit.
The yellow malfunction LED in the break glass unit and the corresponding yellow malfunction
LED in the smoke control unit flash.
Option: External signalling of the alarm or malfunction signal
It is possible to send an alarm or malfunction signal potential free, by plugging in the alarm/malfunction
signalling module.
Cascading smoke control units:
The smoke control units can be cascaded by a monitored 2 wire connection from the alarm module of the
master smoke control unit to the smoke detector input of the slave central panel.
A malfunction in the cascaded smoke control units is detected via the 2 wire BUS cable. The malfunction is
only displayed in the corresponding smoke control unit and in the break glass unit connected to the master
smoke control unit.
