Order No. 2104 ..
"Heating and cooling" mixed operating mode
In the "Heating and cooling" mixed operating mode, the controller is capable of triggering
heating and cooling systems. In this connection, you can set the change-over behaviour of the
operating modes...
-
"Change over between heating and cooling" parameter in the "Room temperature control ->
Controller general -> Setpoints" parameter branch set to "Automatic".
In this case, a heating or cooling mode will be automatically activated, depending on the
room temperature determined and on the given temperature basic setpoint, or on the
deadband, respectively. If the room temperature is within the preset deadband neither
heating nor cooling will take place (both command values = "0"). If the room temperature is
higher than the cooling temperature setpoint cooling will take place. If the room
temperature is lower than the cooling temperature setpoint heating will take place.
When the heating/cooling operating mode is switched over automatically, the information
can be actively output to the bus via the object "Heating/cooling switchover" to indicate
whether the controller is working in the heating mode ("1" telegram) or in the cooling mode
("0" telegram). In this connection, the "Automatic heating/cooling change-over
transmission" parameter specifies when an operating mode change-over will be
transmitted...
- Setting "On changing the operating mode": In this case, a telegram will be transmitted
solely on switchover from heating to cooling (object value = "0") or from cooling to heating
(object value = "1"), respectively.
- Setting "On changing the output command value": with this setting, the current operating
mode will be transmitted whenever there is a modification of the output command value. If
the variable = "0" the operating mode which was active last will be transmitted. If the room
temperature determined is within the dead band the operating mode activated last will be
retained in the object until a switch-over into the other operating mode takes place, if
necessary. In addition, the object value can be output in cycles when automatic switch-over
is being made.
The "Cyclical transmission heating/cooling change-over" parameter enables cyclic
transmission (factor > "0" setting) and specifies the cycle time.
With an automatic operating mode change-over, it should be noted that under certain
circumstances there will be continuous change-over between heating and cooling if the
deadband is too small. For this reason, you should, if possible, not set the deadband
(temperature difference between the setpoint temperatures for the comfort heating and
cooling modes) below the default value (2 K).
Page 65 of 171
Software "KNX CO2 sensor"
Functional description
Содержание CO2-Sensor
Страница 42: ...Order No 2104 Figure 7 CO2 concentration Page 42 of 171 Software KNX CO2 sensor Functional description...
Страница 74: ...Order No 2104 Page 74 of 171 Software KNX CO2 sensor Functional description...
Страница 165: ...Order No 2104 See channel 1 Disable Page 165 of 171 Software KNX CO2 sensor Parameters...