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TF7128_A_NOT_INST_DXR230_EXC_MB
Aereco S.A.
6.4. DETERMINATION OF THE NUMBER OF SENSORS CONNECTED
This step serves to check the connection of the CO
2
or presence sensors to the DXR unit via the
RJ45 cables.
Enter the number of sensors connected to the DXR unit.
If the number of sensors entered matches to the number of sensors detected by the system, the
initialization process goes to the next step. If the number of sensors entered does not match the
number of sensors detected by the system, a pop-up message appears indicating the number of
sensors detected by the system. Two actions are then recommended:
a. Check that the sensors are correctly connected.
b. Check the index of the sensors (index 1 to 8). This index number has to be different from a
sensor to another one. The index numbers must be incremented to each other so that there is no
digit jump. Never use the index 0
Example: if 6 sensors are in use, the index numbers must be 1, 2, 3, 4, 5, and 6
The initialization process returns to the previous step.
6.5. PAIRING OF SENSORS AND SUPPLY DUCTS
This step serves to pair the supply ducts with their CO
2
or presence sensors.
Each intermediate step consists in indicating for each room, the duct(s) supplying fresh air and
the sensor(s) installed in this room. To facilitate locating the supply units, a strong stream of air
emerges from the unit concerned, while the other ducts deliver the minimum airflow.
For each room, proceed as follows:
1. Enter a room name
2. Press “+” button to display the available duct(s) and a sensor for the room:
a. Select one of the available duct to assign it to the room. Selected duct supplies higher
airflow than other. Only blue duct can be chosen. Grey duct indicates duct already
attributed to a room.
b. In the corresponding room, choose the index of the sensor. If the index is correct
(i.e. the index corresponds to the sensor position), the sensor's LED blinks.
3. Once, the duct(s) and the sensor(s) are paired to the room, the duct length must be
determined:
a. Short: corresponds to a length between 0.1 m to 7 m.
b. Medium: corresponds to a length between 7 m to 12 m.
c. Long: corresponds to a length between 12 m to 15 m.
If pipe is longer than 15m, 2 pipes may be used to enshure 28 m
3
/h at least.
Once the three steps are done, use the arrow to assign duct and sensor to another room.
Note: The duct / sensor pairing can be checked only if the system has been installed in accordance with good practice
(limiting leaks and pressure losses in the network).
If the pairing has been correctly entered, the initialization process goes to the next step.
If the pairing of the supply units with the sensors is not correctly entered, a screen is displayed,
indicating the type of error detected.
4. Finish button enables to complete and to register the device configuration.
