Siemens RDG20 KN Series Basic Documentation page 10

Overview
2
Functions
General functions
Setpoints and display
10 | 180
●
Chilled and/or heated ceiling/2-stage
●
Chilled/heated ceiling (4-pipe) with 6-port ball valve (RDG26..KN)
●
Chilled/heated ceiling with PICV and 6-port ball valve as changeover
(RDG26..KN)
Compressor applications via On/Off control:
●
Heating or cooling, compressor in DX-type equipment
●
Heating or cooling, compressor in DX-type equipment with electric heater
●
Heating and cooling, compressor in DX-type equipment
●
Heating or cooling/2-stage, compressor in DX-type equipment
●
Selectable weekly scheduler
●
M/S - manager/subordinate function between thermostats
●
Room temperature control via built-in temperature sensor or external room
temperature/return air temperature sensor
● Room relative humidity control via built-in humidity sensor or external room
humidity sensor (humidity function can be disabled.)
●
Min./max. humidity control by shifting temperature setpoint and releasing
contact for dehumidifier/humidifier
●
Delta temperature control
Limiting temperature difference between flow and return temperature for water
to optimize the system and reduce energy consumption in district heating
systems
●
Floor heating temperature limitation
●
Min. and max. supply air temperature limitation
●
Selection of operating modes via operating mode button
●
Button lock for all buttons independently (automatically or manually)
●
Changeover between heating and cooling mode (automatic via local sensor or
bus, or manually)
●
Parameters protected by password (disabled by default)
●
Purge function together with 2-port valve
●
Valve kick/exercising function to prevent gripping
●
Reminder to clean fan filters
● Indoor air quality monitoring and controlling (CO
(RDG204KN & RDG264KN)
● Black color versions (RDG200KN/BK & RDG260KN/BK)
●
Min. and max. limitation of room temperature setpoint:
– Comfort limitation (min. and max. limitation)
– Energy saving concept (min. and max. limitation separate for heating and
cooling)
●
Temporary Comfort mode extension
●
Green leaf indication function
●
Display of current room temperature or setpoint in ℃, ℉ or both
●
Absolute and relative setpoint indication
● Display of CO value in ppm (parts per million) or with text (GOOD; POOR;
2
BAD: RDG204KN & RDG264KN)
) via fresh air damper
2
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