Siemens RDG2 KN Series Basic Documentation

Overview
Types
2
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2 Overview
2.1 Types
For fan coil units, universal applications and compressors in DX-type equipment
applications
Product no.
Stock no.
Housing
color
Operating
voltage
Fan
Number of control outputs
Built-in sensor
3-speed
DC
On/Off
PWM
3-pos
DC
On/Off
(3-wire)
T: Temperature
H: Humidity
CO
2
RDG200KN
S55770-T409
White
AC 24 V or
AC 230 V
✓
✓
1)
4
4
2
‒
2
T, H
RDG200KN/BK
S55770-T452
Black
AC 24 V or
AC 230 V
✓
✓
1)
4
4
2
‒
2
T, H
RDG204KN
S55770-T410
White
AC 24 V or
AC 230 V
✓
✓
1)
4
4
2
1
2
T, H, CO
2
RDG260KN
S55770-T412
White
AC 24 V or
DC 24 V
✓
✓
1)
‒
‒
‒
4
‒
T, H
‒
✓
1)
2
2)
‒
‒
‒
‒
RDG260KN/BK
S55770-T453
Black
AC 24 V or
DC 24 V
✓
✓
1)
‒
‒
‒
4
‒
T, H
‒
✓
1)
2
2)
‒
‒
‒
‒
RDG264KN
S55770-T413
White
AC 24 V or
DC 24 V
✓
✓
1)
‒
‒
‒
4
‒
T, H, CO
2
‒
✓
1)
2
2)
‒
‒
‒
‒
1)
The terminal Y50 is used as DC 0…10 V output.
2)
The output is relay On/Off.
2.2 Functions
The RDG2..KN KNX room thermostats are designed for use with the following:
Fan coil units via On/Off or modulating/DC control outputs:
● 2-pipe system
● 2-pipe system with electric heater
● 2-pipe system with radiator/floor heating
● 2-pipe/2-stage system also suitable for applications with 1-stage heating/
2-stage cooling, or 2-stage heating/1-stage cooling
● 4-pipe system
● 4-pipe system with electric heater
● 4-pipe system with PICV and 6-port ball valve as changeover (RDG26..KN)
● 4-pipe/2-stage system also suitable for applications with 1-stage heating/
2-stage cooling, or 2-stage heating/1-stage cooling
Chilled/heated ceilings (or radiators) via On/Off or modulating/DC control
outputs:
● Chilled/heated ceiling
● Chilled/heated ceiling with electric heater
● Chilled/heated ceiling and radiator/floor heating
● Chilled ceiling and radiator/floor heating
Control application

Siemens RDG2 KN Series Specifications

General

Brand	Siemens
Model	RDG2 KN Series
Category	Thermostat
Language	English