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as set during configuration). The motor will stop when the humidity drops by a value of 15% compared to
the threshold value (e.g. from 60% to 45%). In order to avoid continuous day and night operation of the
extractor fan, in the event of bad weather, when the system would not be able to reduce the humidity with
ventilation, the appliance behaves as follows:
if the humidity does not drop by 15% RH under the set threshold within 2 hours of operation, the appliance
will switch off for a time of 8 hours. From this moment onwards, in order to ensure a minimum flow of air, the
appliance will run on/off cycles (2 hours on, 8 hours off). When the relative humidity drops by 15% RH under
the set threshold the appliance will automatically return to the standard operation of mode 3.
Mode 4:
The motor starts automatically when the sensor detects a rapid increase in humidity. The operating speed is
V1 (minimum or maximum, as set during configuration). The motor will stop when at least one of the
following conditions occurs:
• the relative humidity falls by a value of 15% compared to the value that caused the motor to switch on;
• after 2 hours of operation. All the variable parameters described above are configured on a value set during
installation. The manual operations can overlap the automatic ones and vice versa.
HCS OFF Operation
With this configuration, you can temporarily disable the action of the humidity sensor. The function is
activated by pressing switch 1, and it turns off automatically one hour after turning off switch 1. Instead of
the switch it is possible to use a button, which must be pressed for at least 0.5 sec. When the function is
active there is only one possible operating mode: the motor is started and stopped manually with switch 2.
The operating speed is V2 (minimum or maximum, as set during configuration). However, when the function
is not active the automations for modes 3 and 4 are operational.
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