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4. Function description
4.1. Smoke and heat extraction
Smoke and heat extraction system alarm trip
The acoustic signal will only sounds in the primary break glass unit if the door is closed or if the door contact
switch is pressed.
Break glass unit
Break the glass in the break glass unit! Press the red button min. 0.5 sec. 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 panel and the red LED in the break glass unit are lit.
Smoke detector and heat detector
Smoke and heat detector
Break glass unit
WSC 204 / WSC 204KP / WSC 204MH
Opens
Opens
WSC 204BZ
Closes
Opens
WSC 204 / WSC 204KP / WSC 204MH
If smoke / heat develop, the smoke extraction system automatically opens.
An acoustic alarm signal sounds (continuous sound) in the primary break glass unit.
All ventilation functions are out of operation.
Display:
The red alarm LED in the smoke control panel, the red LED in the break glass unit, and the red LED
at the tripped automatic detector are lit.
WSC 204BZ
If smoke / heat develops, the smoke extraction system automatically closes.
An acoustic alarm signal sounds (continuous sound) in the primary break glass unit.
All ventilation functions are out of operation.
Display:
The red alarm LED in the smoke control panel, the red LED in the break glass unit, and the red LED
at the tripped automatic detector are lit.
Reopening the actuators
The first 30 min. after a SHE-trig (on WSC 204BZ only when triggered the break glass unit) the actuators will
be cyclically activated every 2 min in OPEN direction (to loosen frost fastened windows, domes e.g.).
Resetting a tripped smoke control panel
Press min. 0.5 sec. on
the „CLOSE button“ in the break glass unit or on the „Reset button” in the smoke control
panel.
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 panel, the red LED in the break glass unit, and the red LED
at the tripped automatic detector extinguish.
Change fuse after too high temperature
If too high temperature the yellow fault-LED in the break glass unit will flash and an acoustic pulse tone sounds
(only if WSK 320). The green LEDs in the break glass unit and the smoke control panel will stop lighting.
Note
The built-in thermal switch is destroyed. The smoke control panel has to be returned for checking.
Alarm trip caused by a malfunction signal (SW2/1 to be switched to ON)
If the function is activated (ON), the smoke control panel will trip
in the event of an actuator, smoke detector,
blown temperature fuse 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.
If the temperature exceed 73°C the automatically SHE-alarm will be activated.
An acoustic alarm signal in the smoke control panel will start.
