ABB i-bus KNX Product Manual page 90

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ABB i-bus KNX
Parameters
7.6.7.1.1 2-point 1 bit (On/Off), 2-point 1 byte (0/100 %)
The following parameters are enabled if the 2-point 1 bit (On/Off) or 2-point 1 byte (0/100%) option has
been selected in the Additional-stage heating control value type parameter.
7.6.7.1.1.1 —
Dependent parameter
Temperature difference from basic-stage heating
Options:
The temperature difference from basic-stage heating specifies the value from which or up to which
the additional-stage heating is to be active. If the actual temperature is below the setpoint temperature by
the value selected here, the additional stage is active.
This action occurs both if the actual temperature drops below the threshold and if it is already below
the threshold.
Example 1:
Temperature difference from basic-stage heating: 2 K
Setpoint temperature: 23 °C
Actual temperature: 19 °C
Additional stage is active until the actual temperature reaches 21 °C.
Example 2:
Temperature difference from basic-stage heating: 2 K
Setpoint temperature: 23 °C
Actual temperature: 22 °C
Additional stage is inactive as long as the actual temperature is above 21 °C.
88 2CDC508220D0211 Rev. A | VC/S 4.x.1
00.0...02.0...25.5 K