ABB -free@home WBI-S-1-xx-WL Series Product Manual page 19

3.8.8 Frost, rain and wind alarm (only universal detector via connection of external sensor)
These functions must be selected when connecting the relevant sensors, to protect blinds or
roller blinds from damage.
The channel of a detector configured with this function must be linked with one or several
channels of a blind actuator (blind and roller blind or awning).
During a frost alarm the respective channel of the blind actuator is blocked to make movement
impossible. During rain or wind alarm the blind is moved to the top end position and then the
associated channel of the blind actuator is blocked. Operating the blind with further free@home
devices or Venetian blind switches is then impossible.
3.8.9 Switchover of heating/cooling (only universal detector via connection of external
sensor)
This function must be selected if there is to be a manual switchover between heating and
cooling modes via a connected switch.
If the associated heating/cooling system offers a corresponding binary output for
heating/cooling, it can be connected to the universal detector.
3.8.10 Window contact
The "Window contact" function must be selected when a room temperature controller is to be
connected with the detector (as window contact).
If the associated channel of the detector is connected with the room temperature controller, the
room temperature controller switches to "Frost protection" mode when an open window is
detected and reduces the set-point temperature to prevent unnecessary loss of energy.
Product manual 2CKA001473B9425
Setup and function
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