Siemens RDF800KN Series User Manual

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Siemens RDF800KN.., RDF800KN/VB, RDD810KN/NF Basic documentation CE1P3174en
Smart Infrastructure 2020-02-21
3.6.2 Application mode
The behavior of the thermostat can be influenced by a building automation and
control system (BACS) via the bus using the "Application mode" command.
With this signal, cooling and/or heating mode can be enabled or disabled.
Application mode is supported in LTE mode and S-mode.
The RDF800KN../RDF800KN/VB/RDD810KN.. room thermostats support the
following commands:
No. Application
mode
Description Control
sequence
enabled
(RDF800
..
)
Control
sequence
enabled
(RDD
8
1
0
..
)
0 Auto Thermostat automatically
changes between heating and
cooling
Heating
and/or cooling
Heating or
Heating OFF
1)
1 Heat Thermostat is only allowed to
heat
Heating only
2 Morning
warm-up
If "Morning warm-up" is
received, the room should be
heated up as fast as possible (if
necessary). Thermostat only
allows heating
Heating only
3 Cool Thermostat is only allowed to
provide cooling
Cooling only Heating OFF
1)
4 Night purge Not supported by fan coil
applications
N/A (= Auto)
5 Pre-cool If "Pre-cool" is received, the
room should be cooled down as
fast as possible (if necessary).
The thermostat will only allow
cooling
Cooling only Heating OFF
1)
6 OFF Thermostat is not controlling the
outputs, which means all
outputs go to off or 0%
Neither heating nor cooling
8 Emergency
heat
Thermostat should heat as
much as possible. It only allows
heating
Heating only
9 Fan only All control outputs are set to 0%
and only the fan is set to high
speed.
This function is terminated by
any operation on the thermostat
Run fan in
high speed
Heating OFF
1)
1)
RDD810KN/NF thermostat turns off the heating output.
With all other commands, the thermostat behaves like in Auto mode, such as,
heating or cooling according to demand.
The state (heating or cooling) 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 when room temperature control is disabled.
Application mode
ACS

Siemens RDF800KN Series Specifications

General

Brand	Siemens
Model	RDF800KN Series
Category	Thermostat
Language	English