Siemens RDF, Application Manual, Page: 20 / 31

20
How to prepare and set up
your room thermostats
Introduction
The versatile RDG and RDF thermostats enable you to better satisfy the requirements of
your customer. This information supports you in setting up your RDG and RDF thermostats.
Control parameters
A number of control parameters can be readjusted to optimize control performance and
enable additional functions. Because of this, the RDG and RDF can be used in almost any
application.
The control parameters are assigned to 2 levels:
– “Service” level, and
– “Expert” level
The “Service” level contains a small set of parameters to set up the controller for HVAC
systems (control sequence) and to adjust the user interface.
The “Expert” level contains control parameters for fan, control inputs/outputs and other
functions. Always change the parameters at the “Expert” level carefully, as they impact the
control performance and functionality of the thermostat.
In general, after selecting the required application via DIP switch, it is not necessary to
adjust the parameters as the unit works correctly with the factory-set parameters.
Nevertheless, in some cases, it might be necessary to readjust the application-specific
parameters:
– Control sequence (P01): select heating/cooling sequence and
changeover function
– Multifunctional inputs (P38…P42): select the input functionality for X1, X2 and D1
– Control output (P46…P47): select type of output signal (on/off, PWM, 3-pos)
– Fan function (P52...P62): select fan functionality
Installation and set up
1. Select a suitable thermostat
2. Set application via DIP switch according to the mounting Instructions
3. Wire and install the thermostat. Apply power
4. If necessary set parameter P01 (control sequence) and other
application-specific parameter
Note: ARG71 – conduit box suitable for RDF semi flush-mount thermostats is
available as accessory
TIP
TIP