4 VELUX
®
Functionality
Important
Smoke exhaust systems must be serviced at least once a year by qualified personnel. As a reminder that mainte-
nance is due, the break-glass point is equipped with an automatic optical and acoustic maintenance alarm
(see page 6).
Activation of fire alarm
Break-glass point
Break the glass cover and press the red button in the break-glass point. The staircase smoke exhaust is opened. An acoustic
alarm (continuous) sounds from the break-glass point.
All comfort ventilation functions are blocked.
Indication:
The red alarm LED in the control unit and the red alarm LED in the break-glass point are on.
Smoke detector / temperature detector
In the event of smoke development/high temperatures, this will result in automatic opening of the staircase smoke exhaust.
An acoustic alarm (continuous) sounds in the break-glass point.
All comfort ventilation functions are blocked.
Indication:
The red alarm LED in the control unit, the red alarm LED in the break-glass point and the red alarm LED in the
activated automatic detector are on.
Fire alarm system
The smoke detector input is used to trigger an alarm via a fire alarm system. Therefore, no smoke detectors should be con-
nected to the control unit.
This requires a potential-free normally open contact from the fire alarm system and the external
alarm module (FAM monitoring module).
After triggering the system, an acoustic alarm (continuous) sounds in the break-glass point.
All comfort ventilation functions are blocked.
Indication:
The red alarm LED in the control unit and the red alarm LED in the break-glass point are on.
Resetting fire alarm
Press the RESET-button in the break-glass point or in the control unit. The acoustic alarm in the break-glass point stops.
Once the staircase smoke exhaust has been closed, the comfort ventilation functions are operational again. (After an alarm
via an automatic detector, blow out smoke or replace the detector before resetting).
Indication:
The red alarm LED in the control unit, the red alarm LED in the break-glass point and the red alarm LED in the
activated automatic detector are off.
Alarm triggered by high temperatures
If the inside temperature of the control unit rises above 72 °C, an error is displayed. An acoustic alarm (pulsing) sounds in
the break-glass point.
Indication:
The yellow error LED in the break-glass point flashes. The green operation LED in the break-glass point and in
the control unit respectively are off.
Note:
The built-in temperature detector is irreversibly destroyed. The printed circuit board must be replaced.
Alarm triggered by error message
If this function is activated (SW2/1 = ON, see page 6), an alarm triggers in case of high temperatures or a circuit error in
either the motor, smoke detector or break-glass point. An acoustic alarm (continuous) sounds in the break-glass point. An
error in the mains or battery circuits does not trigger an alarm.
Indication:
The red alarm LED in the control unit and the red alarm LED in the break-glass point are on.
The yellow error LED in the break-glass point and the corresponding yellow error LED in the control unit flash.
The green operation LED in the break-glass point and the control unit respectively are off.
Connecting control units
The control units can be connected using a monitored 2-core cable from the alarm/error module of the principal control unit
to the smoke detector inputs of the additional control units.
An error in the connected control units is detected via the 2-core cable.
The error is only indicated in the control unit concerned and in the break-glass point of the principal control unit. There must
be an alarm/error module in every control unit (see page 6).
