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4.6 Additional functions
Functions (parameters)
Sensors and changeover functions [➙ 48]
●
Heating/cooling changeover via bus (KNX)
●
Automatic heating/cooling changeover via changeover
sensor
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Changeover switch (P150, P153, P155)
●
Manual heating/cooling changeover (P001)
●
External/return air temperature sensor (P150, P153,
P155)
Presence detector [➙ 49]
●
Standard presence mode (P150 / P153 / P155)
●
Hotel presence mode (P150 / P153 / P155)
Output functions [➙ 50]
●
Purge function (P251)
●
Minimum output On/Off time (P212, P213)
●
Swap outputs for 2-pipe and 2-stage applications
(P254)
●
Floor heating/cooling (P350)
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Qx relay switching function (P400, P401, P402)
Monitoring and limiting functions [➙ 53]
●
Floor temperature limitation function (P252)
●
Supply air temperature limitation (P063, P064)
●
Flow limitation in heating for PICV (P256)
●
Dewpoint monitoring
●
Fault state "condensation" (P150, P153, P155 = 4)
●
Valve kick/exercising (P250)
●
Return flow temperature control (P061, P062)
User operation / Indication [➙ 56]
●
Button lock (P028)
●
Green leaf (P110, P111)
●
Set time /date
●
Set Away (holiday mode)
Humidity [➙ 59]
●
Humidity control (P007, P450)
Scheduler [➙ 62]
●
Scheduler (P005)
M/S, Manager/subordinate [➙ 64]
Preventive operation [➙ 68]
●
Avoid cold air in heating mode (P365)
●
Avoid damage from moisture (P363, P364)
NFC communication [➙ 68]
●
NFC (P500)
IAQ – CO2 monitoring and control [➙ 68] (RDG204KN, RDG264KN)
●
IAQ monitoring (P450)
●
CO
indication (P009)
2
●
IAQ control (P023, P450, P453, P454, P455, P456)
●
Frost protection (P109)
A6V11545892_en--_c
Description
Central control of heating / cooling via bus
Auto changeover on each equipment
Heating / cooling controlled manually by user (via HMI)
Temperature measurement with external sensors
Switch operating mode locally or via bus
Switch operating mode locally or via bus
To ensure correct acquisition of the water temperature
To protect the HVAC equipment, for example, the
compressor and reduce wear and tear
To optimize the use of heating/cooling energy in mixed
systems
Application without fan control
Control external equipment based on function status
(Heating/cooling demand, operating mode, sequence,
humidity, ...)
For user Comfort and protect the floor
To increase the comfort, by avoiding to warm or too cold
air in the room
To balance heating and cooling systems and avoid
hydraulic problems caused by different flow rates
To prevent condensation damages in the building
To prevent valve freezing after extended inactivity
To save energy by adjusting flow speed in district
heating systems
To limit access to unauthorized people
Indication about energy efficient
To set the time of day (AM/PM, hours and minutes) and
date (weekday, month and year)
To set a holiday period
Limit min. and max. humidity in the room
To set time schedule
To save energy in open spaces
To make sure reaching setpoint temperature during
heating mode
To prevent from damage of moisture
NFC communication via Siemens smartphone
application
To monitoring and controlling indoor air quality
Functions
4
Additional functions
RDG26..KN
RDG20..KN
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