User Manual

Functions
Additional functions
4
50 | 146 A6V11545892_en--_a
Within the preset energy-
efficient range
Exceed the preset energy-
efficient range
End users can press the red
leaf and return to the energy-
efficient range
Return to the
preset energy-
efficient range
Maximum tolerance of room temperature setpoint shift value is defined by P111
(default is 2 K).
4.6.6 Humidity
Humidity control limits the humidity in the room according to the selected setpoint
(low/high) by shifting the temperature setpoint, or by enabling outputs to release
the external equipment as needed, for example, the dehumidifier or humidifier.
Humidity control is active in Comfort mode when P450 is set to 1. The function can
be disabled by setting P450 to 0 (factory setting).
Humidity function is disabled in Economy or Protection mode.
The humidity level in the room is acquired by the built-in sensor. The thermostat
can receive the relative humidity via the bus if a valid humidity value is available
and selected on KNX (S-Mode or LTE-Mode).
The priorities are set as follows:
1. S-Mode
– By selecting parameter “Room relative humidity” in the ETS to Receive, the
thermostat can display the relative humidity measured by an external
sensor on the bus.
– If the parameter is set to Transmit (factory setting), the thermostat can
display the humidity value measured by the built-in sensor and the value is
sent to the bus.
2. LTE-Mode
The thermostat displays the relative humidity value on the bus if the external
KNX sensor is in the same geographic zone apartment and room (A.R.1) as
the thermostat.
3. In other cases, the thermostat displays the humidity value measured by the
built-in sensor.
To display room humidity (%) on the thermostat, P009 needs to be set to 5.
The high humidity setpoint (%) is selectable via P024 (setpoint humidity high
Comfort) and can be adjusted via parameters in Service level or via the bus.
Setting P024 to OFF disables high humidity control.
Humidity control (P007,
P450)
Room humidity
Note
Setpoint (P024)