User Manual

Functions
Control sequences
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In this case that an electric heater is connected directly to outputs Q2
(RDG260KN), the current causes the relay contact to heat up. This falsifies the
reading of the internal temperature sensor. The thermostat compensates the
temperature if the rated power of the electric heating is entered at P217.
Factory setting P217: 0.0 kW, setting range: 0.0…1.2 kW.
The diagrams below show the control sequence for On/Off control.
Heating mode
(changeover = heating or heating only)
Cooling mode
(changeover = cooling or cooling only)
The diagrams below show the control sequence for modulating control.
Heating mode
(changeover = heating or heating only)
Cooling mode
(changeover = cooling or cooling only)
● The diagrams only show the PI thermostat’s proportional part.
For setting sequence and control outputs, see Applications overview [➙ 36],
Sequence overview (setting via P001) [➙ 54] and Control outputs [➙ 75].
Parameter P256 (RDG260KN) sets the heating flow limitation when using a PICV.
See Additional functions [➙ 41].
On/Off control
Control sequence
On/Off output
Modulating control:
3-position, PWM or
DC 0…10 V
Control sequence
modulating control output
Note
Note