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Rain/wind sensor If a rain/wind sensor is installed, the windows will close automatically in the event of
rain or strong wind. As long as the rain/wind sensor is active, the windows cannot be
opened with the ventilator switch.
In the event of a fire alarm, the windows will also open when the rain/wind sensor is
active.
Power outage In the event of a power outage, ventilation operation is disabled, which saves the bat-
teries for use in the event of a fire. It is only possible to close the windows which are
already open.
1.4 Fire alarm
Triggering the fire alarm To manually trigger the fire alarm:
1. Break the glass on the RWA switch.
2. Depress the pushbutton until it clicks into place.
The fire alarm is triggered automatically in the following situations:
• A smoke sensor detects smoke.
• A heat differential sensor detects a sharp increase in temperature.
• A fire alarm system transmits an alarm signal to the RWA-Emergency Power
Control System.
Procedures and signals during the fire
alarm
If a fire alarm is triggered, the alarm program of the RWA-Emergency Power Control
System executes:
• Windows and smoke extraction vents open (normal configuration) or close.
• The red fire alarm signal lamp on the RWA switch is illuminated.
• The RWA-Emergency Power Control System transmits external signals, for
example to an audible signal or the fire station.
• The ventilator switches are disabled.
• The rain/wind sensor is ignored.
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