Applicatio Manual
Universal Interface 4 DIN/NTC EK- CG2-TP
Revisione 1.0.0 - Aggiornato: 04/09/2017
© SBS S.p.A.
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MAEKCG2TP_EN
Pag. 70
Nome oggetto
Condizioni
Dim.
Flags
DPT
N° Ogg. Com.
HVAC scene number
1 Byte
C-W---
[17.001] scene number
[18.001] scene control
54
It stores or recalls a scenario. The six least significant bits (0 to 5) in the byte of the code
represent the number of the scene, while the most significant bit (7) is the operation code (1 =
stores, 0 = recalls).
If the room thermostat is configured as slave (
General
folder
Device operation as
=
slave) all scenes sento to the device have no effect: the device is therefore configured
only to answer to the chrono program it is enslaved to.
If the room thermostat is configured as stand-alone, it is not possible to activate a scene
that sets the device to automatic mode (
HVAC mode
= auto): all other HVAC modes are
available to be activated by a scene.
If the room thermostat is configured as stand-alone/chrono, it is possible to activate scene
that recall all HVAC modes, including Automatic mode (
ModoHVAC
= auto): the latter will
enslave the room thermostat to the configured chrono program.
i
•
9.9 Relative humidity control
The
Relative humidity control
folder includes the following secondary folders:
•
Dehumidification
•
Humidification
The secondary folders
Dehumidification
and
Humidification
appear if at a humidity sensor is enabled. The acquisition
of relative humidity is made by bus from a KNX R.H. sensor.
The sensor acquires the air humidity value inside the room, which can be used for the following purposes:
•
Local display and sending on the bus (for information purpose) through DPT [9.007] percentage (%);
•
Use of detected value for derivated psycrometric values calculations and sending on the bus through
corresponding DPTs;
•
Calculation of correlated indexes (perceived temperature) for local display or sending on the bus;
•
Use for room ventilation through ventilation start, external intakes opening, window opening through
motorized actuators. Control is performed upon thresholds;
Use for control of thermoigrometric comfort conditions of radiant panel cooling systems equipped with integration of
latent heat (starting of dedicated terminals without modification of cooling water flow temperature);
Use for safety control in radiant panel cooling systems not equipped with integration of latent heat through calculation
of critical thermoigrometric conditions (dew point) and corresponding modification of cooling water flow temperature.