Technical data

The comfort setpoint w (e.g. customer setting on the display) and the current
setpoint w2 (used by the thermostat for temperature control, but not visible on the
unit) is handled differently depending of the selected application and setting:
The comfort setpoint w and current setpoint w2 have the same value
Heating mode Cooling mode
XpH
100
0
w
Y [%]
3076D03_01
T[°C]
Y1
XpC
Y [%]
100
0
w
3076D04_01
T[°C]
Y1
The comfort setpoint w (value selectable via e.g. rotary knob) is in the middle of
the dead zone (P33). The current setpoints w2.. (used by the thermostat for
temperature control) are at the boundaries of the dead zone.
w2h = Comfort setpoint (w) – ½ dead zone (Xdz)
w2c = Comfort setpoint (w) + ½ dead zone (Xdz)
Y [%]
100
0
w
3076D12_01
T[°C]
Y2
XpH
Y1
XpC
½
x
dz
½
x
dz
w2h
w2c
• The supported communication objects are different in LTE mode and S-mode.
• Changes via the local HMI or via tool have the same priority (last always wins).
• Setting the Comfort basic setpoint will reset the runtime Comfort setpoint to the
basic setpoint.
• Central setpoint shift is used for summer / winter compensation in particular.
• Setpoint shift does not affect the setpoints stored in parameters P08, P11, P12,
P33.
• Local shift and central shift are added together.
• Applies only to Comfort and Economy setpoints; Protection setpoints are not
shifted centrally.
• The resulting (current) setpoint heating and cooling is limited by the Protection
setpoint; if Protection setpoint is OFF, then minimum 5 °C and maximum 40 °C
are used.
• The resulting setpoints for cooling and heating of the same operating mode
have a minimum distance of 0.5 K between them.
• The result of local and central shift, together with the room operating mode, is
used by the thermostat for temperature control (current setpoint).
• The room thermostat always adopts the received setpoints from the controller
RMB795. Thus the setpoints locally adjusted on the RDG room thermostats are
overwritten by the setpoints of the room group (e.g. every 15 min).
RDG160KN: On RMB SW Version >= 2.0 it is possible to define under which
circumstances the controller has to send out the setpoints. See "Setpoint
priority" and "Setpoint Master" functions on RMB.
RDG100KN: The local setpoints are always overwritten.
Clarification concer
-
ning current setpoint in
Comfort mode
2
-pipe or
4-pipe with P09>P10
4-pipewith P09<P10
General notes:
Notes on setpoint
adjust
ment (LTE mode
with Synco only)
Setpoint priority
Setpoint Master (RMB)
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Siemens RDG100KN, RDG160KN Basic documentation CE1P3191en
Building Technologies Functions 2014-05-23