User Manual

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Siemens Room Temperature Controllers N3067en
Building Technologies 2014-10-14
Controller
The controller acquires the room temperature via its built-in sensor and maintains the
setpoint by delivering 2-position valve control commands or compressor output
commands.
The switching differential is 2 K in heating mode and 1 K in cooling mode (adjustable
via parameters P08 and P09).
The display shows the acquired room temperature or the setpoint of the current
operating mode. This can be selected via parameter P18. Factory setting is display of
the current room temperature.
The heating
and cooling symbols on the display show the status of the fan coil.
This means that the symbols are also shown while the controller operates in the neutral
zone.
If required, room temperature and setpoint can also be displayed in °F in place of °C by
changing parameter P17.
Operating modes
The following operating modes are available:
In Normal operation, the controller maintains the setpoint, which can be adjusted via
the + - buttons. The fan can be set to automatic or manual fan speed: Low, medium or
high.
The setpoint setting range can be limited to a minimum (P05) and maximum (P06). This
helps prevent the waste of energy, thus saving costs.
When the controller is in Standby mode
, the relevant setpoints of heating or cooling
are maintained. These setpoints can be adjusted via control parameters P03 and P04.
Factory setting of both setpoints is OFF, which means that the controller is not
activated when in Standby mode.
In Auto Timer mode
AUTO
, the controller will automatically change over between Normal
operation and Economy (Energy saving) mode according to the 8 preprogrammed
timers. The display shows the Auto Timer mode symbol
AUTO
and the symbol of the
operating mode currently maintained, either Normal operation
or Economy (Energy
saving) mode
.
The setpoints of Economy (Energy saving) mode can be adjusted via control
parameters
P01 and P02.
The default fan speed in Auto Timer mode is automatic fan.
To avoid damage due to moisture in very warm and humid climatic zones resulting from
lack of air circulation in Economy (Energy saving) mode, the fan can be kept running all
the time (e.g. in apartments or shops during unoccupied periods), when setting
parameter P20 “ON in dead zone”. In this case, the fan keeps running at minimum fan
speed 1.
Temperature control
Display
Normal operation
Tip!
Standby
Auto Timer mode AUTO
(only with RDF410.21)
Economy (Energy
saving) mode
Avoiding damage
due to moisture