Siemens Desigo RXB Technical Manual page 424

Operating diagrams
Application mode "Auto" (0).
Y
1-stage
1 K
H
ON
OFF
Y
Mod.
H
ON
YR
OFF
SpH
Y Output signal.
TR Room temperature.
SpH Effective heating setpoint.
SpC Effective cooling setpoint.
H Heating sequence.
C Cooling sequence.
YH Heating/cooling valve.
YR Contactor or solid state relay for electric
heating coil.
Y Output signal.
TR Room temperature.
SpH Effective heating setpoint.
SpC Effective cooling setpoint.
H Heating sequence.
C Cooling sequence.
Q14 Fan speed 1.
Q24 Fan speed 2.
Q34 Fan speed 3.
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Siemens
Building Technologies
Application mode " Heating" (1).
In "Heating" mode, the electric heating
coil operates as a reheater for LTHW
heating, i.e. only when the valve is fully
open.
C
ON
YH YC
OFF
TR [°C]
SpH SpC
C
ON
YH YC
OFF
TR [°C]
SpC
Y
Q34
Q24
Q14
RXB application library (KNX)
FNC05 – Four-pipe fan coil with electric reheater
Y
1 K
H
YH
SpH
Y
H
YR YH
SpH
H
SpH SpC
FNC – Fancoil-Applikationen aus FC-10, FC-11, FC-12
Application mode "Cooling" (3).
In "Cooling" mode, the electric heating
coil is the only heating source once the
temperature falls below SpH.
Y
ON
YR
OFF
TR [°C]
SpH
Y
H
100%
YR
0%
TR [°C]
SpH
C
TR [°C]
C
YC
TR [°C]
SpC
C
YC
TR [°C]
SpC
CM110672en_03
30.11.2007