Heat Protection Setpoint (Building Protection, Cooling); Send Current Setpoint - ABB i-bus KNX Product Manual

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ABB i-bus KNX
Parameters
7.7.6

Heat protection setpoint (building protection, cooling)

This parameter is only visible if the device has been parameterized for cooling and the Deactivated option
has not been selected for the Basic-stage cooling parameter in the Application parameters parameter
window.
Options:
This parameter is used to set the temperature that is to apply in the Building Protection operating mode
in the type of operation cooling.
This setpoint temperature also becomes active if the controller receives the information "Window open",
"Fill level alarm" or "Dew point alarm", or is deactivated via the Request On/Off (Master) group object.
The controller does not change the type of operation to reach this temperature, instead it ensures this
temperature is not dropped below on a reduction in the actual temperature.
This setpoint is used to protect the building and the installation against damage, and at the same time
to prevent unnecessary energy wastage. For this reason the temperature should not be selected too low,
and also not too high.
An example of this aspect is the opening of a window: As long as the window is open, further cooling will
waste energy. However, if the outside temperature is very high (e.g. 50 °C), the room temperature will
continuously approach this temperature. Here there is a risk of persons becoming too hot and also
damage to the installation and the equipment in the room. To prevent this situation from arising, the
controller becomes active again on reaching the temperature set and attempts to prevent exceeding this
temperature.
However, if the setpoint for heat protection is selected too high, the controller starts this attempt much
earlier, e.g. at a time that is acceptable on opening a window, and wastes unnecessary energy.
7.7.7

Send current setpoint

Options:
This parameter is used to define when the setpoint currently valid is to be sent via the Current setpoint
group object.
27...35...45 °C
Note
Note
After a change and cyclically
After a change
VC/S 4.x.1 | 2CDC508220D0211 Rev. A 139