Siemens RDG20 KN Series User Manual

Functions
Control outputs
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4.8.2 Control output configuration for 6-port valve (P201)
The RDG26.. can control an actuator connected to a 6-port control ball valve or a
6-port PICV, that provides heating and cooling with one DC 0…10 V or
DC 2…10 V signal. The control output is Y10 and cannot be changed.
The 2 signals control Siemens and third-party valves/actuators.
For the same application, RDG26.. can also provide an inverse signal DC 10…0 V
or DC 10…2 V signal for inversed hydraulic connections on the valve.
The control signal is set via P201. See tables below for details.
For supporting the actuators GDB161.9../6W, the thermostat control algorithm for
P201 values (6, 7, 8 and 9) is adjusted to optimize temperature control
performance.
A new RDG26.. that controls an older actuator GDB161.9E or third-party actuator,
must set P201 to 10 or 11. This setting is also important when replacing devices in
the field.
See tables below for details.
Description
Explanation
P201 = 6
6-port valve (DC 0…10 V control
signal)
Suitable for Siemens 6-port control valves and actuators
with DC 0…10 V signal
P201 = 7
6-port valve (DC 2…10 V control
signal)
Suitable for Siemens 6-port control valves and actuators
with DC 2…10 V signal
P201 = 8
inverse signal, 6-port valve
(DC 10…0 V control signal)
For inversed hydraulic connection on the 6-port control ball
valve with Siemens DC 0…10 V actuator *
P201 = 9
inverse signal, 6-port valve
(DC 10…2 V control signal)
For inversed hydraulic connection on the 6-port control ball
valve with Siemens DC 2…10 V actuator *
P201 = 10
6-port valve (DC 0…10 V control
signal) 3
rd
part
Suitable for Siemens actuators GDB161.9E or competitor
DC 0…10 V actuators, with 6-port control valves
P201 = 11
6-port valve (DC 2…10 V control
signal) 3
rd
part
Suitable for Siemens actuators GDB161.9E or competitor
DC 2…10 V actuators, with 6-port control valves (e.g.
Belimo)
* Inverting the signal may cause hydraulic balancing issues
Version compatibility RDG’s, actuators and valves:
1) When replacing RDG260.. connected to the actuator GDB161.9E, verify the
settings for control output signal P201.
2) RDG with previous product indices do not support the GDB161.9.../6W
actuators. We recommend upgrading (via KNX SW download tool) or replacing the
RDG260.. with a new version.
Actuator / valve combination
Product: Product index
P201
GDB161.9../6W with
6-port PICV VWPG51.. or 6-port ball valve
VWG41..
● RDG260KN..: D or higher
● RDG264KN..: B or higher
● RDG260T..: Z, A or higher
6, 7, 8, 9
GDB161.9E with
6-port ball valve VWG41..
● RDG260KN..: Z, A, B, C
● RDG264KN..: Z, A
6, 7, 8, 9
GDB161.9E with
6-port ball valve VWG41..
● RDG260KN..: D or higher
● RDG264KN..: B or higher
● RDG260T..: Z, A or higher
10, 11
1)
GDB161.9.../6W with
6-port PICV VWPG51.. or
6-port ball valve VWG41..
● RDG260KN..: Z, A, B, C
● RDG264KN..: Z, A
Need new RDG.
2)
DC 0...10 V
DC 2…10 V
(RDG26.. only)
Note
Note

Siemens RDG20 KN Series Specifications

General

Brand	Siemens
Model	RDG20 KN Series
Category	Thermostat
Language	English