Basic Documentation
Table Of Contents
- 1 About this document
- 2 Overview
- 3 Notes
- 4 Functions
- 4.1 Temperature control
- 4.2 Operating modes
- 4.3 Room temperature setpoints
- 4.4 Application overview
- 4.5 Power supply selection for RDG200KN
- 4.6 Additional functions
- 4.7 Control sequences
- 4.7.1 Sequence overview (setting via P001)
- 4.7.2 Application mode
- 4.7.3 2-pipe fan coil unit
- 4.7.4 2-pipe fan coil unit with electric heater
- 4.7.5 2-pipe fan coil unit with radiator or floor heating
- 4.7.6 2-stage heating and cooling
- 4.7.7 4-pipe fan coil unit
- 4.7.8 4-pipe fan coil unit with electric heater
- 4.7.9 Chilled/heated ceiling and radiator applications
- 4.7.10 Compressor applications
- 4.7.11 Applications with external AQR sensor or QMX room operator unit
- 4.7.12 Setpoints and sequences
- 4.8 Control outputs
- 4.9 Fan control
- 4.10 Multifunctional input, digital input
- 4.11 Handling system faults
- 4.12 KNX communications
- 4.12.1 S-Mode
- 4.12.2 Master/slave configuration in KNX S-Mode
- 4.12.3 LTE-Mode
- 4.12.4 Zone addressing in LTE-Mode (with Synco)
- 4.12.5 Master/slave configuration in LTE-Mode
- 4.12.6 Example of heating and cooling demand zones
- 4.12.7 Send heartbeat and receive timeout
- 4.12.8 Startup
- 4.12.9 Heating and cooling demand
- 4.12.10 Fault and alarms function on KNX
- 4.13 Communication objects
- 4.14 Communication objects (LTE-Mode)
- 4.15 Control parameters
- 5 Supported KNX tools
- 6 Connection
- 7 Technical data
- 8 Dimensions
- Index
Overview
Types
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2 Overview
2.1 Types
For fan coil units, universal applications and compressors in DX-type equipment
applications
Product no.
Stock no.
Operating
voltage
Fan
Number of control outputs
Built-in
sensor
3-
speed
DC
On/Off
PWM
3-pos
DC
On/Off
(3-wire)
Humidity,
temperature
RDG200KN
S55770-T409
AC 24 V
or
AC 230 V
✓
✓
1)
4
4
2
‒
2
✓
RDG260KN
S55770-T412
AC 24 V
or
DC 24 V
✓
✓
1)
‒
‒
‒
3
‒
✓
‒
✓
1)
2
2)
‒
‒
‒
‒
1)
The terminal Y50 is used as DC 0…10 V output.
2)
The output is relay On/Off.
2.2 Functions
The RDG2..KN KNX room thermostats are designed for use with the following:
Fan coil units via On/Off or modulating/DC control outputs:
● 2-pipe system
● 2-pipe system with electric heater
● 2-pipe system with radiator/floor heating
● 2-pipe/2-stage system also suitable for applications with 1-stage heating/
2-stage cooling, or 2-stage heating/1-stage cooling
● 4-pipe system
● 4-pipe system with electric heater
● 4-pipe system with PICV and 6-port ball valve as changeover (RDG260KN)
● 4-pipe/2-stage system also suitable for applications with 1-stage heating/
2-stage cooling, or 2-stage heating/1-stage cooling
Chilled/heated ceilings (or radiators) via On/Off or modulating/DC control
outputs:
● Chilled/heated ceiling
● Chilled/heated ceiling with electric heater
● Chilled/heated ceiling and radiator/floor heating
● Chilled ceiling and radiator/floor heating
● Chilled and/or heated ceiling/2-stage
● Chilled/heated ceiling (4-pipe) with 6-port ball valve (RDG260KN)
● Chilled/heated ceiling with PICV and 6-port ball valve as changeover
(RDG260KN)
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
Control application