E/0310/50/22
General
An alarm or failure is indicated via a short text in the display and status-LEDs.
Conditions that activate the alarm relay are shown in the following table. The delay with which the
alarm relay is activated, depends on the failure and is documented in the table.
Texts for alarms and failures are only shown in operation mode "start", in menu item 1 , and in
operation mode "stop". All alarms and failures that have occured up to this time and corresponding
operation modes are indicated by showing up every four seconds.
Warnings
Warnings have no direct influence on the function of the unit, i.e. after a warning has occured, the
unit can be continued in operation for a while. The alarm relay is not activated.
These functions are only supervised in start mode:
- Ultrasonic humidifier (5µS/cm)
- Filter
Alarms
Actual values are supervised not to reach limit values. After a delay of about 30 seconds the limit
alarm is activated. Limit values are supervised even in operation mode "stop".
Alarm "humidity" is only evaluated if dehumidification and humidification
hysteresis is not set at "0".
Failures
Failures on the following functions are only supervised in the operation mode "start":
- Reheat Compressor 1 low pressure
- Humidification (20µS/cm) Compressor 1 failure
- Airflow Compressor 2 low pressure
Compressor 2 failure
Failures on the following functions are
also supervised in the operation mode "stop".
- Aux 1 / water sensor
- Aux 2 / fire and smoke detector
- Sensor break-down
5. Alarms and Failures
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