Siemens RDE100 Series Manual page 2

Functions
Temperature control
Floor heating limitation function (RDE100.1 only)
Operating mode switchover function
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Siemens
Building Technologies
• Room temperature control via built-in sensor or external input
• Selection of operating mode with operating mode touchkey
• Setting auto time switch (individual day, 7 day or 5-2 day)
• Display of current room temperature or setpoint in °C or °F
• Touchkey lock (manually)
• Setpoint lock
• Periodic pump run
• Reloading factory settings for commissioning and control parameters
• One multifunctional input (RDE100.1 only) freely selectable for:
Floor Heating temperature limitation function
Operating mode switchover contact (keycard, window contact, etc.)
The RDE100.. acquires the room temperature with its built-in sensor and maintains
the setpoint by delivering control commands. The switching differential is 1 K.
Q14
ON
W
OFF
SD
The factory setting for this function is Off (disabled) and must be set to "On" if floor
heating is used.
The external floor temperature sensor is connected to input X1,
the floor temperature. If the floor temperature exceeds the parameterized
temperature limit xx ºC (P14 = 1, P15 = 1, P16 = xx ºC), the heating valve is fully
closed until the floor temperature returns to a level below the parameterized limit.
Typical application is rooms (dry floor).
If the application does not require floor heating temperature limitation but instead
uses the external sensor as a source for both room temperature display and
control, the parameters will have to be set as follows: P14 = 1, P15 = 0. A typical
application is the bathroom (wet floor) where a constant floor temperature is
required.
It is not recommended to have only an internal built-in room sensor for floor
heating since there is a potential risk of overheating.
This function allows keycard application, please refer to the section "Operating
notes, Economy mode".
RDE100.. Room thermostat with Auto Timer, Option External Input
T Room temperature
SD Switching differential
W Room temperature setpoint
Q14 Output signal for heating
T[°C]
and acquires
CB1N1422en
2016-03-10