5 VELUX
®
Functionality / Additional modules
Comfort ventilation functions
Comfort ventilation OPEN
When the dead-man button is switched on (SW2/2 = ON, see page 6), the staircase smoke exhaust will only open as long
as the OPEN button of the ventilation switch is pressed and held.
When the dead-man button is not switched on (SW2/2 = OFF, see page 6), the staircase smoke exhaust will open once the
OPEN button is pressed.
Indication:
The comfort ventilation OPEN LED in the ventilation switch is on (only for switches with indicator).
Comfort ventilation CLOSE
The staircase smoke exhaust will close once the CLOSE button is pressed.
Indication:
The comfort ventilation OPEN LED in the ventilation switch is off (only for switches with indicator).
Wind/rain sensor CLOSE:
When the wind/rain sensor (not included) is activated – the potential-free contact in the sensor is switched on –, the stair-
case smoke exhaust will close. As long as the alarm is activated, the comfort ventilation functions are not operational.
Indication:
The green wind/rain LED in the control unit is on.
Note: All comfort ventilation functions are blocked in the event of an alarm or power failure.
Additional modules (optional)
Transmitting alarms and/or error indications
An alarm or an error indication can be transmitted potential-free by inserting the alarm/error indication module.
Multi error indication
One change-over contact (max 60 V, 1 A) with a 3-pole connection terminal to transmit potential-free to BMS etc.
Alarm indication
One change-over contact (max 60 V, 1 A) with 3-pole connection terminal to transmit potential-free to BMS etc. or as
monitored 2-core alarm cable to connect control units.
Jumper inserted in J1 = only for alarm transmission to the nearest control unit (connecting).
Jumper inserted in J2 = potential-free alarm contact (factory setting).
2-pole connection terminal for 2-core cable to report errors in connected control units to the break-glass point in the princi-
pal control unit.
Transmitting the wind/rain alarm
The alarm from the wind/rain sensor can be transmitted potential-free to the nearest control unit by inserting the wind/rain
transmission module
Wind/rain alarm
One change-over contact (max 60 V, 1 A) with a 3-pole connection terminal to potential-free transmit the wind/rain alarm.
Automatic closing of comfort ventilation
If a ventilation timer module (not included) has been inserted, the staircase smoke exhaust will automatically close after a
certain period of time. This time can be set between 1 and 30 min.
