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Siemens
RXB application library (KNX)
FNC – Fancoil-Applikationen aus FC-10, FC-11, FC-12 CM110672en_0
3
Building Technologies
FNC20 – Four-pipe fan coil, controlled by one damper
30.11.2007
FNC20
Four-pipe fan coil, controlled by one damper
KNX
R
•
Heating with LTHW and cooling with CHW.
•
3-position damper actuator.
•
Automatic or manual fan control.
Plant diagram
N1 Room
controller.
R1
Room unit with temp.
sensor.
B1
Return air sensor.
D1 Window
switch.
D2 Presence
detector.
Q1
Fan (1… 3-speed).
YM 3-position
damper
actuator.
10
3
8
5S
22
T
B1
Q1
N1
R1
D1
D2
T
YM
KNX
R
Operating diagrams
Y Output
signal.
TR Room
temperature.
SpH
Effective heating setpoint.
SpC Effective
cooling
setpoint.
H Heating
sequence.
C Cooling
sequence.
YM Damper
actuator.
Q14
Fan speed 1.
Q24
Fan speed 2.
Q34
Fan speed 3.
10
38
5D
5
2
100
TR [°C]
Y [%]
SpH
SpC
YM
H
C
0
N
TR [°C]
Y
H
C
Q14
Q24
Q34
SpH
SpC
10
38
5D
5
3