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
Additional functions
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The swap function optimizes use of heating/cooling energy in mixed systems. E.g.,
when the fan coil units are combined with radiant heating/cooling panels, it is better
to start heating using the panels (1
st
stage heating, YHC1) and start cooling using
the fan coil unit (1
st
stage cooling, YHC2).
Enable the swap function by setting P254 (YHC2 output signal, 1
st
stage in cooling)
to ON, depending on the requested control signal.
Swap function disabled
Swap function enabled
P254 is set to Off
P254 is set to On
● For 2-pipe/2-stage applications, see 2-stage heating and cooling [➙ 75].
● If the equipment requests fan operation only in the 2
nd
stage (heating and/or
cooling), see Fan control [➙ 97] to set up the fan function (fan in the 2
nd
stage).
● For application examples, see Swap function and/or fan in the 2nd stage
[➙ 157].
All heating sequences can also be used for floor heating.
You can use fan coil unit heating/cooling sequences for floor heating or cooling by
disabling the fan via P350.
The following functions allow the control of external equipment connected to the
Q1, Q2 and Q3 relay outputs:
Function description
P40X =
No function
0
Switching off external equipment when the thermostat is in
Protection mode
1
Switching on external equipment during…
● heating/cooling demand
● heating demand
● cooling demand
2
3
4
Energizing the contact when…
● the heating sequence is active
● the cooling sequence is active
5
6
Humidity control:
● Output to control dehumidifier
● Output to control humidifier
7
8
● When P351 = 1 and 2, these functions are not available.
● When fan is DC 0...10 V fan (P351 = 3) or fan is disabled (P350 = 0) and
related relays are not occupied by output (configure 1 stage or 2 stage as
On/Off on RDG260KN), these functions are available.
● Do not use these functions in combination with On/Off valve control
(P201/P203 = 2 / 4 or P204/P205 = 4) to ensure temperature control accuracy.
Note
Floor heating/Floor cooling
(P350)
Qx relay switching
function (P400, P401,
P402)
Note