Overview; Types; Functions - Siemens RDG20 KN Series Basic Documentation

2 Overview

2.1 Types

Product no. Stock no.
RDG200KN S55770-T409
RDG200KN/BK S55770-T452
RDG204KN S55770-T410
RDG260KN S55770-T412
RDG260KN/BK S55770-T453
RDG264KN S55770-T413

2.2 Functions

Control application
A6V11545892_en--_c
For fan coil units, universal applications and compressors in DX-type equipment
applications
Housing Operating
color voltage
3-speed
White AC 24 V or ✓
AC 230 V
Black AC 24 V or
✓
AC 230 V
AC 24 V or
White ✓
AC 230 V
White AC 24 V or
✓
DC 24 V
‒
✓
Black AC 24 V or
DC 24 V
‒
✓
AC 24 V or
White
DC 24 V
‒
1) The terminal Y50 is used as DC 0...10 V output.
2)
The output is relay On/Off.
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
Fan Number of control outputs
DC On/Off PWM
1)
✓ 4 4
1) 4 4
✓
1)
✓ 4 4
1) ‒ ‒
✓
1) 2 2) ‒
✓
1) ‒ ‒
✓
1) 2)
2 ‒
✓
1)
✓ ‒ ‒
1) 2 2) ‒
✓
Overview
Types
Built-in sensor
3-pos DC On/Off T: Temperature
(3-wire)
H: Humidity
2 ‒ 2
2 ‒ 2
2 1 2
T, H, CO
‒ 4 ‒
‒ ‒ ‒
‒ 4 ‒
‒ ‒ ‒
‒ 4 ‒
T, H, CO
‒ ‒ ‒
2
CO
2
T, H
T, H
2
T, H
T, H
2
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