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Functions
Function
Two-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 FNC18 includes the following functions
(refer to the description of functions CM110385 for detailed information):
Brief description)
– PI control.
– Proportional control sequence, selectable:
Only heating sequence, only cooling sequence or changeover.
– Heating/cooling coil: Control of thermal or motorized valve actuators
(AC 24 V, PDM / AC 24 V, 2-position / AC 24 V, 3-position).
– Control of motorized KNX bus actuator valves.
– Radiator: Control of thermal valve actuators
(AC 24 V, PDM).
– Downdraft compensation
– Valve exercising feature.
– 1 ... 3-speed, automatic, or
– 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.
FNC18 is supplied with RXB21.1/FC-11.
RXB application library (KNX)
FNC18 – Two-pipe fan coil (changeover) and radiator
/Auto switch on room unit, presence detector,
FNC – Fancoil-Applikationen aus FC-10, FC-11, FC-12
CM110672en_03
30.11.2007
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