User Manual

4/10
Siemens Room temperature controller CE1N3021en
Building Technologies 2017-11-14
To avoid damage due to moisture in very warm or humid climatic zones resulting from
lack of air circulation in energy saving mode, the fan will not be switched off when se-
lecting the function “Temperature-independent fan control“ (with DIP switch no.1)
A changeover switch can be connected to status input D1-GND. When the switch
closes its contact (caused by an open window, for instance), the operating mode will
change from normal operation to energy saving mode (provided DIP switch no.2 is set
to ON), or from normal operation to standby (provided DIP switch no.2 is set to OFF). If
the room temperature falls below 8 °C and if DIP switch no.3 is set to OFF, frost protec-
tion mode will become active.
The operating action of the switch (N.C. or N.O.) can be selected.
Type summary
Type reference Features
RCC10
With input for return air temperature sensor
RCC10.1
*)
Without input for return air temperature sensor,
without frost protection function
*) Type is not orderable any more
Ordering
When ordering, please give name and type reference.
The QAH11.1 temperature sensor (can be used as a return air temperature or change-
over sensor), the changeover sensor mounting kit and the valves are to be ordered as
separate items.
Equipment combinations
Type of unit Type reference Data sheet
*)
Temperature sensor
QAH11.1
1840
Room sensor
QAA32
1747
Changeover mounting kit
ARG86.3
1840
Motoric on/off actuator
SFA21...
4863
Thermal actuator (for radiator valve)
STA21...
4893
Thermal actuator (for small valve 2,5 mm)
STP21...
4878
*) The documents can be downloaded from http://siemens.com/bt/download.
Mechanical design
The unit consists of two parts:
∂ A plastic housing which accommodates the electronics, the operating elements and
the built-in room temperature sensor
∂ A mounting base
The housing engages in the mounting base and snaps on.
The base carries the screw terminals. The DIP switches are located at the rear of the
housing.
Avoiding damage
resulting from mois-
ture
(only with the RCC10.1)
Operating mode
changeover switch