Siemens RDG20 KN Series User Manual

Functions
Additional functions
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4.6 Additional functions
Functions (parameters)
Description
Standalone
RDG
KNX
Sensors and changeover functions [➙ 49]
● Heating/cooling changeover via bus
(KNX)
Central control of heating / cooling via bus
✓
2..KN
● Automatic heating/cooling changeover
via changeover sensor
● Changeover switch (P150, P153, P155)
Auto changeover on each equipment
✓
✓
✓
✓
2..
● Manual heating/cooling changeover
(P001)
Heating / cooling controlled manually by user
(via HMI)
✓
✓
2..
● External/return air temperature sensor
(P150, P153, P155)
Temperature measurement with external
sensors
✓
✓
2..
Presence detector [➙ 50]
● Standard presence mode (P150 / P153 /
P155)
Switch operating mode locally or via bus
✓
✓
2..
● Hotel presence mode (P150 / P153 /
P155)
Switch operating mode locally or via bus
✓
✓
2..
Output functions [➙ 52]
● Purge function (P251)
To ensure correct acquisition of the water
temperature
✓
✓
2..
● Minimum output On/Off time (P212,
P213)
To protect the HVAC equipment, for example,
the compressor and reduce wear and tear
✓
✓
2..
● Swap outputs for 2-pipe and 2-stage
applications (P254)
To optimize the use of heating/cooling energy in
mixed systems
✓
✓
2..
● Floor heating/cooling (P350)
Application without fan control
✓
✓
2..
● Qx relay switching function (P400, P401,
P402)
Control external equipment based on function
status (Heating/cooling demand, operating
mode, sequence, humidity, …)
✓
✓
2..
Monitoring and limiting functions [➙ 54]
● Floor temperature limitation function
(P252)
For user Comfort and protect the floor
✓
✓
2..
● Supply air temperature limitation (P063,
P064)
To increase the comfort, by avoiding too warm
or too cold air in the room
✓
✓
2..
● Flow limitation in heating and cooling for
PICV (P260, P261 (only RDG264KN:
P256))
To balance heating and cooling systems and
avoid hydraulic problems caused by different
flow rates
✓
✓
2..
● Dewpoint monitoring
● Fault state "condensation" (P150, P153,
P155 = 4)
To prevent condensation damages in the
building
✓
✓
✓
✓
2..
● Valve kick/exercising (P250)
To prevent valve freezing after extended
inactivity
✓
✓
2..
● Return flow temperature control (P061,
P062)
To save energy by adjusting flow speed in
district heating systems
✓
✓
2..
User operation / Indication [➙ 57]
● Button lock (P028)
To limit access to unauthorized people
✓
✓
2..
● Green leaf (P110, P111)
Indication about energy efficient
✓
2..KN
● Set time / date
To set the time of day (AM/PM, hours and
minutes) and date (weekday, month and year)
✓
✓
2..
● Set Away (holiday mode)
To set a holiday period
✓
✓
2..

Siemens RDG20 KN Series Specifications

General

Brand	Siemens
Model	RDG20 KN Series
Category	Thermostat
Language	English