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
102 | 170
A6V11545892_en--_b
Combinatio
n
1
st
stage
signal
2
nd
stage
signal
Fan
type
Fan
synchro
Fan behavior
6
On/off
DC
DC
2
nd
sequence
XpH/XpC,
P/PI control
7
DC
On/off
DC
1
st
sequence
XpH/XpC,
P/PI control
8
DC
On/off
DC
2
nd
sequence
XpH
Fan
/XpC
Fan
,
P-control
9
DC
DC
3-speed
1
st
sequence
XpH/XpC,
P/PI control
10
DC
DC
3-speed
2
nd
sequence
XpH/XpC,
P/PI control
Fan operation can be limited to be active with cooling only or heating only, or even
disabled via P350.
When fan operation is disabled, the fan symbol on the display disappears and
pressing the fan button has no impact.
This function allows for using the thermostat in universal applications such as
chilled/heated ceilings and radiator, etc. (see Chilled/heated ceiling and radiator
applications [➙ 85]).
In automatic mode, a dwelling time of 2 minutes (factory setting) is active. The fan
maintains each speed for at least 2 minutes before changing to the next speed.
The minimum on-time can be adjusted from 1…6 minutes via P362.
In automatic fan mode and with the room temperature in the dead zone, the control
valve is normally closed and the fan is disabled. With the periodic fan kick function,
the fan can be released from time to time at low speed for a minimum on-time (see
above) even if the valve is closed.
This function is used to prevent damage from moisture due to a lack of air
circulation, or to allow a return air temperature sensor to acquire the correct room
temperature.
➀
Periodic fan kick
➁
Minimum on-time
Periodic fan kick time can be selected individually for Comfort via P363, and via
P364 for Economy.
● Fan kick value 0 means the fan runs continuously in the dead zone (only
selectable in Economy via P364)
● Fan kick value 1 and higher: Value in minutes
● Fan kick value Off means the fan does not run in the dead zone
The fan speed in the dead zone (Comfort mode) can be set via P029 (Service level)
ask per customer preferences.
To save energy, the manual fan in the dead zone is controller same as the auto fan
(P029 = 3, 4 or 5).
The following options are available:
● Auto fan does not run in the dead zone
● Auto fan runs in the dead zone at low speed during heating and cooling
(P029 = 1)
Fan operation as per
heating/cooling mode, or
disabled
Fan minimum on- time
Periodic Fan kick (P363,
P364)
Notes
Fan stage in dead zone
P029