User Manual

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Siemens Room Temperature Controllers CE1N3041en
Building Technologies 2017-11-14
Output Y1 (heating): when used in connection with thermic actuators, the selected in-
terval should be 240 seconds. When using electric heaters, it should be 90 seconds.
When used in connection with electric valve actuators, DIP switches no. 5 and no. 6
must be set to ON for two-position control.
PWM actuating signals may never be used for driving electric actuators!
The room temperature setpoint can be limited in increments of 1 K by making use of
the minimum and maximum limitation facility. Arbitrary setpoint readjustments can thus
be prevented.
Operating modes
The following operating modes are available:
Normal operation is activated when the operating mode selector is set to “ “ (RCU
10.1) and the external operating mode changeover switch is not activated. In normal
operation, the controller maintains the adjusted setpoint.
Frost protection mode can be activated either
∂ by manually switching to standby (RCU10.1)
∂ by activating the external operating mode changeover switch, provided DIP switch
no. 1 is set to OFF
If the room temperature falls below 8 °C, the controller will automatically switch to frost
protection mode. In that case, the heating valve opens and the room temperature is
maintained at a setpoint of 8 °C. The setpoint adjusted by the user will be ignored.
Energy saving mode can be activated either
∂ by manually switching to energy saving mode “ “ (RCU10.1).
∂ by activating the external operating mode changeover switch, provided DIP switch
no. 1 is set to ON
In energy saving mode, the setpoint of heating is 16 °C and the setpoint of cooling
28 °C, independent of the position of the setpoint knob.
A changeover switch can be connected to status input D1–GND. When the switch acti-
vates (caused by an open window, for instance), the operating mode will change from
normal operation or standby to energy saving mode (provided DIP switch no. 1 is set to
ON), or from normal operation or energy saving mode to standby (provided DIP switch
no. 1 is set to OFF).
The operating action of the switch (N.C. or N.O.) can be selected.
Type summary
Type reference Features
RCU10
Without operating mode selector
RCU10.1
*)
With operating mode selector
*) Type is not orderable any more
Ordering
When ordering, please give name and type reference, e.g. room temperature controller
RCU10.
Valve and air damper actuators are to be ordered as separate items.
Note
Caution
Energy saver
Normal operation
Frost protection mode
Energy saving mode
Operating mode
changeover switch