Application Mode - Siemens RDG200KN Basic Documentation

4.7.2 Application mode

Application mode
ACS
Heating or cooling
A6V11545892_en--_a
The behavior of the thermostat can be influenced via building automation and
control system (BACS) and bus using command "Application mode".
Cooling, heating or both can be enabled or disabled using this signal. Application
mode is supported in LTE-Mode and S-Mode.
RDG2..KN KNX thermostats support the following commands:
# Application mode Description
0 Auto
1 Heat
2 Morning warm-up If "Morning warm-up" is
3 Cool
4 Night purge
5 Pre-cool
6 Off
8 Emergency heat
9 Fan only
With all other commands, the thermostat behaves as if in Auto mode, thus, heating
or cooling by demand.
The heating and cooling states of the thermostat can be monitored with the ACS
tool (diagnostic value "Control sequence"). The last active mode is displayed when
the thermostat is in the dead zone or temperature control is disabled.
With a 2-pipe application, the control sequence state is determined by the
application mode and the state of the heating/cooling changeover signal (via local
sensor or bus), or fixed according to the selected control sequence (P001 =
heating (0)/cooling (1)).
The thermostat automatically
changes over between heating
and cooling.
The thermostat only allows for
heating.
received, the room is heated
up as fast as possible (as
needed). The thermostat only
allows for heating.
The thermostat only allows for
cooling.
Not supported by fan coil
applications.
If "Pre-cool" is received, the
room is cooled down as fast
as possible (as needed). The
thermostat only allows for
cooling.
Thermostat does not control
outputs, that is, all outputs go
to off or 0%.
The thermostat heats as much
as possible. The thermostat
allows only heating.
All control outputs are set to
0% and only the fan is set to
high speed.
The function is terminated by
any operation on the
thermostat.
Functions
4
Control sequences
Control sequence
enabled
Heating, cooling or both
Heating only
Heating only
Cooling only
N/A (= Auto)
Cooling only
Neither heating nor
cooling
Heating only
Run fan at high speed
57 | 150