Functions; Temperature Control - Siemens RDG100KN Basic Documentation

General note:
Parameters

Temperature control

Display
K N X
R
Room temperature
/
Concurrent display of
°C and °F
K N X
R
Outside temperature via
bus
K N X
R
Time of day via bus
Note
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Siemens
Building Technologies
3.

Functions

3.1 Temperature control
Setting of the control parameters (P01, etc., mentioned throughout the document)
is described in 3.14.
The thermostat acquires the room temperature via built-in sensor, external room
temperature sensor (QAA32), external return air temperature sensor (QAH11.1) or
via KNX (RDG165KN, via S-Mode or LTE-Mode), and maintains the setpoint by
delivering actuator control commands to heating and/or cooling equipment. The
following control outputs are available:
· On/Off control (2-position)
· Modulating PI/P control with PWM output
· Modulating PI/P control with 3-position control output
· Modulating PI/P control with DC 0...10 V control output
The switching differential or proportional band is 2 K for heating mode and 1 K for
cooling mode (P30 and P31).
The integral action time for modulating PI control is adjustable via P35 (factory
setting: 5 minutes on RDG100KN/45 minutes on RDG16..KN).
The display shows the acquired room temperature or the Comfort setpoint, selecta-
ble via P06. The factory setting displays the current room temperature.
Configure P04 to display the room temperature or setpoint in °F or °C as needed.
The acquired room temperature (internal or external sensor) is available as
information on the bus.
The RDG165KN can also acquire the room temperature via KNX.
· With automatic changeover or continuous heating/cooling, symbols
indicate that the system currently heats or cools (heating or cooling output is
activated)
· With manual changeover (P01 = 2), symbols
currently operates in heating or cooling mode. Thus, the symbols are displayed
even when the thermostat operates in the neutral zone. Symbols
indicate that the system is currently heating or cooling (the heating or cooling
output is activated)
Concurrent display of the current room temperature setpoint or current room
temperature in °C and °F is available (P07 = 1).
The outside temperature displays on the thermostat (P07 = 2). This temperature
value has only informational character.
In LTE-Mode, the outside temperature can only be received on outside temperature
zone 31.
In S-Mode, the corresponding communication object must be bound to a KNX
sensor device.
Time of day via bus displays on the thermostat (P07 = 3 or 4). The display format is
either in 12- or 24-hour format.
The information can be received from a Synco controller with time master
functionality or any other KNX device if the corresponding communication object is
bound.
When an application program is downloaded to the Synco devices via ETS, the
correct group addresses must also be downloaded in order to display the time of
day on the thermostat (see Synco Knowledge Base - KB771).
RDG100KN, RDG160KN, RDG165KN Basic Documentation
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/ indicate that the system
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CE1P3191en
2018-07-03