Siemens RDF800KN Series User Manual

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Siemens RDF800KN.., RDF800KN/VB, RDD810KN/NF Basic documentation CE1P3174en
Smart Infrastructure 2020-02-21
3. Functions
3.1 Room temperature control
Information for setting the control parameters (e.g. P01) is described in
section 3.14.
The thermostat acquires the room temperature using its built-in sensor, external
room temperature sensor (QAA32), or external return air temperature sensor
(QAH11.1), and maintains the setpoint by delivering actuator control commands to
the heating and/or cooling equipment. The following control outputs are available:
· On/Off control (2-position)
· Modulating PI/P control with 3-position control output
(only for RDF.. types, 2-pipe applications)
The switching differential or proportional band is 2 K for heating mode and 1 K for
cooling mode (adjustable via P30 and P31).
The integral action time for modulating PI control is 45 minutes (RDF..), adjustable
via P35.
The display shows the acquired room temperature or the Comfort setpoint, which is
selected using P06. The factory setting displays the current room temperature.
Use P04 to change the room temperature display from °C to °F as needed.
The acquired room temperature (built-in or external sensor) is also available as
information on the bus.
· With automatic changeover or continuous heating/cooling, the icons / on
the top line of the screen indicate that the system currently operates in heating
or cooling mode (heating or cooling output activated).
· With manual changeover (P01 = 2), H or C displays on the INFO page and
indicates that the system currently operates in heating or cooling mode. For
more information, refer to section 4.3.2.
If the outdoor temperature is available, press the icon on the INFO page shown
below, and then use  and  to select the outdoor temperature. This temperature
value has only information character.
In LTE mode, the outdoor temperature can only be received in outdoor temperature
zone 31.
In S-mode, the corresponding communication object needs to be bound with a
KNX sensor device.
General note:
P
arameters
Room temperature
control
Display
Room temperature
/
Outdoor temperature
using the bus

Siemens RDF800KN Series Specifications

General

Brand	Siemens
Model	RDF800KN Series
Category	Thermostat
Language	English