Page 22 of 28
CLIMATE ALARM CODES
Alarm code
Description
Alarm unknown (xxx)
An unknown and non-documented alarm code has occurred. Note down the
number that is displayed and contact your supplier.
Outside sensor faulty
Value measured by outside temperature sensor < -50.0°C or > +50.0°C
Sensor faulty
The values measured by the sensor (temperature, etc.) are outside the preset
limits
Temperature too high
The temperature measured is higher than the maximum alarm limit calculated
Temperature too low
The temperature measured is lower than the minimum alarm limit calculated
Temperature sensor faulty Value measured by temperature sensor < -50.0°C or > +100.0°C
Thermo-differential
sensor x
The temperature difference between the last two measurements by the sensor is
greater than the maximum difference allowed or the sensor temperature is higher
than the absolute limit, see page 23.
Ventilation 0%
The measuring fan has stopped.
Invalid value
Invalid value (0), enter a valid value (see AQC table).
Ventilation too high
1
The ventilation measured is higher than the maximum alarm limit calculated
Ventilation too low
1
The ventilation measured is below the minimum alarm limit calculated
1
If a flap control is concerned, first check that the flap is not running in manual mode.
ROOM TEMPERATURE
You can set the alarm limits for the room temperature here. If
temperature compensation is active, the maximum alarm limit can be
adjusted by means of the corrected “Temperature setting”. If an outdoor
sensor is used, the maximum alarm limit can be adjusted by the current
outside temperature.
Alarm code
Depending on the type of sensor, the alarm status can be indicated by one
of the texts listed in the table, see page 22.
ROOM VENTILATION
You can switch off the measuring fan(s) in this window. In addition, this
window displays the calculated measuring fan alarm limits.
The calculations shown in this window concern the controlled ventilation
group and not the total room ventilation. The values shown may differ
from the readings in other windows as a result.
A measuring fan that is switched off no longer influences the
output signal and the ventilation group alarm detection.
Measuring fan 1
on
:
the output signal depends on the difference between the calculated ventilation and the
measured ventilation.
Measuring fan 1
off
:
the calculated ventilation defines the output signal.
Measuring fan 2
on
:
the output signal depends on the difference between the calculated ventilation and the
measured ventilation.
Measuring fan 2
off
:
If measuring fan 1 is
on
and the calculated ventilation exceeds the start
percentage of the 2nd fan, the output of the fan 2 will follows the output of the fan
1.
If both measuring fans are
off
, the calculated ventilation will define the output
signal.
