Standard Built In Antifrost Protection Of The Heat Exchanger; Display On The Rc (Remote Control) - aldes DFE Compact micro-watt Manuel D'installation Et De Maintenance

4.2 Standard built in antifrost protection of the heat exchanger

This functionality is built in the standard DFE Compact control and must not be configured by the installer.
Description:
In order to avoid the risk of frosting the heat exchanger, the supply airflow is linked to the temperature value of the exhaust
airflow measured after the heat exchanger (sensor T3). The exhaust airflow remains unchanged.
•
T° (S3) > +5° C: the assigned airflow is as defined by SETUP
•
+1° C < T° (T3) < +5° C : the airflow assigned by SET UP is automatically modified as follows :
- If CA or LS working mode : the supply airflow will progressively drop down to 33% (AF
(AF )
n
- If CPs mode, the assigned pressure will drop to 50% (AF
- In these conditions LED AF is ON.
•
T° (T3) < +1° C : the supply fan is stopped for as l ong as T° (T3) < +1° C. In these conditions LED AF is blinking.
All these temperature SET values can be modified using ADVANCED SETUP.
Antifreeze diagram :
S3
(° C)
5°C
1°C
AF low
4.3 Display on the RC
a) Standard display
By default, only airflow and fan pressure values as well as alarm status are displayed on the LCD.
b) Display all the parameters
Press on the left knob on the diagram so that the SETUP LED ignites
↑ ↓
By pressing and it is possible to display the status of all the working parameters:
- DFE Compact type
- working mode and set values
- airflow/pressure of each fan
- pressure alarm setup (CA/LS working mode only)
- alarm status
- status of K1/K2/K3 inputs on the CBr
- status of the anti-freeze protection
- T° values of sensors 1/2/3
LED AF ON
LED AF blinking
AF n
46
) of the assigned pressure (AF
low
) of the assigned airflow
low
)
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