User Manual

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Siemens Building Technologies Room temperature controller CE1N3025en
HVAC Products 12.06.2003
Operating modes
The following operating modes are available:
Heating or cooling mode with automatic changeover and with manually selected fan
speed III, II or I. In normal operation, the controller maintains the adjusted setpoint. In
operating mode selector position
, the controller is switched off.
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. This operating mode will be
activated when input D1 for operating mode changeover is active and DIP switch no.
2 is set to ON.
To avoid damage due to moisture in very warm or humid climatic zones resulting from
lack of air circulation in energy saving mode, DIP switch no. 1 must be set to OFF.
With this configuration, the fan in energy saving mode operates at the speed manually
selected or, if the operating mode selector is set to OFF
, at speed I.
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).
Ordering
When ordering, please give name and type reference. The QAH11.1 temperature
sensor (can be used as a changeover sensor), the changeover 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
Changeover mounting kit
ARG86.3
1840
Motoric actuator (radiator valve)
SSA61...
4893
Motoric actuator (small valve 2,5 mm)
SSP61…
4864
Motoric actuator (small valve 5,5 mm)
SSB61...
4891
Motoric actuator (valve 5,5 mm)
SSC61…
4895
Motoric actuator (valve 5,5 mm)
SQS65…
4573
Normal operation
Energy saving mode
Avoiding damage
resulting from mois-
ture
Operating mode
changeover switch