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
Functions
Fan control
4
A6V11545892_en--_b
99 | 170
1. The switching point for low fan speed is synchronized to the heating/cooling
output. P353 (switching point fan speed low) is not relevant.
2. The maximum switching range of the fan (XpH
Fan
/XpC
Fan
) is defined by the
switching differential (SDH/SDC) via a reference table.
Heating/cooling
1- or 3-speed fan
DC 0...10 V fan
T [°C] Room temperature
w Room temperature setpoint
Q Fan speed
Y Control command "Valve"
SDH Switching differential
"Heating" (P051)
SDC Switching differential
"Cooling" (P053)
X
dz
Dead zone (P055)
XpH
Fan
Switching range for fan
"Heating" (Table)
XpC
Fan
Switching range for fan
"Cooling" (Table)
Fan 3-speed switching point
high (P355)
Fan 3-speed switching point
med (P354)
Fan_max Max. DC 0...10 V fan
speed (P359 for heating & P360 for
cooling)
Fan_med Med. DC 0...10 V fan
speed
(P358)
Fan_min Min. DC 0...10 V fan
speed (P357)
SDH/SDC [K]
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
>4.5
XpH
Fan
/XpC
Fan
[K]
2
3
4
5
6
7
8
9
10
The thermostat can control a 1- or 3-speed fan (selected via P351). A 1-speed fan
is connected to terminal Q1, and a 3-speed fan to terminals Q1, Q2 and Q3.
1-speed/3-speed fan
Reference table with
On/Off control