User Manual

74 / 94
Siemens RDF800KN.., RDF800KN/VB, RDD810KN/NF Basic documentation CE1P3174en
Smart Infrastructure 2020-02-21
An external KNX bus power supply is required if an
RDF800KN../RDF800KN/VB/RDD810KN.. KNX room thermostat is connected
directly to a tool (ACS or ETS) using KNX interface.
The thermostat's control parameters can be set to ensure optimum performance of
the entire system. The parameters can be adjusted using
· Local HMI
· Synco ACS
· ETS
The control parameters of the thermostat can be set to ensure optimum
performance of the entire system (see section 3.14).
· Depending on the application, the control sequence may need to be set via
P01. The factory setting is as follows:
Application
Factory setting P01
2-pipe and chilled/heated ceiling 1 = cooling only
4-pipe, chilled ceiling and radiator 4 = heating and cooling
· When the thermostat is used in connection with a compressor, adjust the
minimum output on-time (P48) and off-time (P49) for Y1/Y2 to avoid damaging
the compressor or shortening its life due to frequent switching.
· Recalibrate the temperature sensor (built-in or external) if the room temperature
displayed on the thermostat does not match the room temperature measured
(after min. 1 hour of operation). To do this, change P05.
· We recommend to review the setpoints and setpoint ranges (parameters for
RDF800KN.., RDF800KN/VB: P08…P12; for RDD810KN/NF: P08…P11) and
change them as needed to achieve maximum comfort and to save energy.
The programming mode helps identify the thermostat in the KNX network during
commissioning.
Touch and hold down the icon for more than 5 seconds to activate
programming mode, which is indicated by the display of Pr09. Programming mode
remains active until thermostat identification is complete.
Assign device address (P81) using the HMI, ACS or ETS tool.
When the device address is set to 255, communication is deactivated (no
exchange of process data).
Use ETS to assign the KNX group addresses of the thermostat's communication
objects.
Each device has a unique KNX serial number inside the front panel. An additional
sticker with the same KNX serial number is enclosed in the packaging box. This
sticker is intended for installers for documentation purposes.
Not
e:
Control parameters
Control sequence (for
RDF800KN..,
RDF800KN/VB only)
Compressor-based
applications (for
RDF800KN..,
RDF800KN/VB only)
Calibrating the sensor
(P05)
Setpoint and range
limitation
Programming mode
Assigning KNX device
address
Assigning KNX group
addresses
KNX serial number