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
100 | 170
A6V11545892_en--_b
Fan speed I = Min. fan speed selectable via P357
Fan speed II = Medium fan speed selectable via P358
When the DC fan characteristic is not linear, the fan speed II can be adapted to an
efficient manual speed II.
Fan speed III = Max. fan speed selectable via P359 (heating), P360 (cooling)
Note: Manual fan settings
do not influence control
signals "Heating" and
"Cooling".
When heating with electric heater only, manual fan speed I is unavailable to
guarantee the necessary minimum air flow for the electric heater and to avoid
overheating.
For heating or cooling with 2 sequences (e.g. heating with a heating coil and an
electric heater, or 2-stage cooling), the fan is always synchronized to the 1
st
stage.
For 2-pipe and 2-stage applications, based on the equipment, the fan may have to
run in the 2-stage only (in the 1
st
stage the fan remains Off), either in the heating or
cooling sequence.
The following settings are available by selecting fan control P350 accordingly:
P350 = 4: 2
nd
stage
Fan runs in the 2
nd
stage in heating and cooling (example 1
or 2 when combined with the swap function)
P350 = 5: Heating and 2
nd
stage
cooling
Fan runs in heating mode and in the 2
nd
stage cooling
(example 3)
P350 = 6: Cooling and 2
nd
stage
heating
Fan runs in cooling mode and in the 2
nd
stage heating
P350 = 7: 2
nd
stage cooling only
Fan runs in the 2
nd
stage cooling only and not in heating
mode
P350 = 8: 2
nd
stage heating only
Fan runs in the 2
nd
stage heating only and not in cooling
mode
The fan runs only in the 2
nd
stage in the heating and cooling sequence (2-pipe and
2-stage application).
Set both P201 and P203 to 4 or 5 (based on the requested control signal) and set
P350 to 4 (fan in the 2
nd
stage).
Heating mode
Cooling mode
Manual operation
DC 0...10 V fan
Note
2 sequences
heating/cooling
Fan in the 2
nd
stage
Example 1