Siemens Desigo RXB Technical Manual page 440

Function
Four-pipe fan coil.
Fan control.
Temperature measurement. – Room temperature sensor or
Room operating modes.
Setpoint shift.
General functions.
Room units.
Compatible controllers.
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Siemens
Building Technologies
Application FNC12 includes the following functions
(refer to the description of functions CM110385 for detailed information):
Brief description)
– PI control.
– Two proportional control sequences, heating and cooling.
– Control of thermal valve actuators (AC 24 V, PDM).
– Control of motorized KNX bus actuator valves.
– Outside air damper.
– Valve exercising feature.
– 1 ... 3-speed automatic.
– Manual with room unit.
– Return air sensor.
– Comfort, Precomfort, Economy and Protection mode..
– Change of operating mode via
window contact or central command.
– Locally via room unit or centrally.
– Presence detector.
– Window switch.
– Master/slave operation.
– Boost heating, night cooling.
– Free inputs / outputs
Available with temperature sensor, setpoint adjuster,
button for /Auto and fan speed control, and LCD display.
FNC12 is supplied with RXB21.1/FC-11.
RXB application library (KNX)
FNC12 – Four-pipe fan coil with outside air damper
/Auto switch on room unit, presence detector,
FNC – Fancoil-Applikationen aus FC-10, FC-11, FC-12 CM110672en_03
30.11.2007