Assortment / System Description

Control function
Room controller and setpoints
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The room operator unit cannot influence the heating and cooling setpoints for
Economy or Protection.
The Comfort setpoints for temperature control in the room is mapped in the
central function for seasonal compensation. The central seasonal
compensation (setpoint shift based on outside temperature) causes a gradual
increase in room temperature as a function of the outside temperature. This
prevents too great a difference between the indoor and outdoor temperature in
summer and increases overall comfort in winter.
These values are transferred to the rooms via a group. In the room, the
transferred values are displayed on these two BACnet object:
Description Name
Heating setpoint for Comfort SpHCmf
Cooling setpoint for Comfort SpCCmf
A default command can be made on the BACnet objects listed above if
setpoints for Comfort are to be set directly in the room without influence from
the central function:
Description Name Default value
Default command for heating setpoint for Comfort DefCmd for SpHCmf 21 °C
Default command for cooling setpoint for Comfort DefCmd for SpCCmf 24 °C
The setpoints can be configured on the DXR2.
Description Name Default value
Heating setpoint Delta for Pre-Comfort DSpHPcf 1 K
Heating setpoint for Economy SpHEco 15 °C
Heating setpoint for Protection SpHPrt 12 °C
Cooling setpoint Delta for Pre-Comfort DSpCPcf 1 K
Cooling setpoint for Economy SpCEco 35 °C
Cooling setpoint for Protection SpCPrt 40 °C
The Comfort, Economy and Precomfort setpoints can be adjusted separately for
each room for the heating and cooling sequences centrally from the Desigo CC
management station. Adjusting the Comfort setpoint also changes the Pre-
Comfort setpoint.
The setpoints Economy and Protection as well as the set difference for Pre-
Comfort values can also be adapted in Desigo CC to the individual DXR2
automation stations.
Comfort setpoints as
seasonal compensation
Comfort setpoints
directly for the room
Setpoint configuration
Setpoint setting in
Desigo CC