User Manual
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-pipe/2-stage heating or 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
- 4.13 Communication objects (S-Mode)
- 4.14 Communication objects (LTE-Mode)
- 4.15 Control parameters
- 5 Supported KNX tools
- 6 Connection
- 7 Technical data
- 8 Dimensions
- Index /
Functions
Control sequences
4
72 | 150 A6V11545892_en--_a
4.7.9.1 Chilled/heated ceiling with 6-port control ball valve
(RDG260KN)
The RDG260KN is able to control a 6-port control ball valve for a chilled and
heated ceiling application.
This application is available, if the thermostats are set as 4-pipe with 6-port ball
valve applications (DIP4 = ON, see Applications for universal systems [➙ 39]).
Only one signal DC 0…10V (Y10 output) is used to control the 6-port control ball
valve for heating and cooling.
Hydraulic and control di
agram of the 6
-
port control ball valve
W
Room temperature setpoint
YH Control command "Valve" (heating)
YC Control command "Valve" (cooling)
Kv Vale flow
Default integral action time TN is set to 45 minutes.
If the thermostat is set to control sequence “H/C ceiling with 6-port control ball
valve”, only output Y10 can be used to control the 6-port control ball valve.
Output voltage range of Y10 can be configured via P201. For details, see Overview
[➙ 78].
P201
= 6
6
-
port valve (DC
0…10 V control signal)
P201
= 7
6
-
port valve (DC 2… 10 V control signal)
P201
= 8
Inverse signal, 6
-
port valve (DC 10… 0 V control
signal)
P201
= 9
Inverse signal, 6
-
port valve (DC 10… 2 V control signal)
If the thermostat is set to control sequence “H/C ceiling with 6-port control ball
valve”, fan control is set to disable and cannot be changed.
Parameter P350 (Fan control) is set to 0 and cannot be changed.
YH
YC
Kv
W
Y
Principle
Control output
configuration
Fan control