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DOL 834 CE
Technical User Guide 27
6.2 Alarm test
Regular alarm tests help to ensure that the alarms actually work when needed. Therefore you should test the
alarms every week.
Activate Alarm test to start testing.
Check that the alarm lamp is flashing.
Check that the alarm system alarms as intended.
Press Acknowledge to finish testing.
6.3 Power failure alarm
The controller will always generate an alarm and activate emergency opening in the event of power failure.
6.4 Alarm settings
6.4.1 Alarms for central air intake
Alarm settings | Central air intake
Temperature alarms
Low temperature
An alarm is triggered by the controller when the temperature is at - 20
°C.
The alarm can be disconnected and set to be hard or soft.
High temperature An alarm is triggered by the controller when the temperature is at - 40
°C.
The alarm can be disconnected and set to be hard or soft.
Air intake alarms
Inlet
The inlet alarms are technical alarms.The controller provides an alarm
if the actual opening of the air inlet deviates from the setting that the
controller calculated as correct.
Humidity alarm
Absolute high humidity
The controller triggers an alarm when the humidity exceeds the setting
of the
Abs. high humidity limit
.The alarm can be triggered by, e.g.
lack of ventilation or a technical error in one of the sensors.
Error humidity sensor
The controller triggers an alarm when the humidity sensor is discon-
nected or the air humidity is lower than humidity setpoint.
The alarm limit is factory preset at such a low level (5 %) that the
alarm is only triggered by an actual sensor error.
6.4.2 Alarms for central exhaust
Alarm settings | Central exhaust
Pressure alarms