Siemens RDG2 KN Series Basic Documentation

Connection
IAQ - CO2 connection diagrams
6
A6V11545892_en--_c
159 | 180
RDG26..KN
Chilled/heated ceiling with 6-port control ball
valve
4-pipe with 6-port ball valve as changeover and
PICV
Application
N2
Room thermostat RDG26..KN
V3
6-port modulating control actuator
S1, S2, S3
Switch (keycard, window contact, presence
detector etc.)
V4
PICV control valve
B1, B2, B3
Temperature sensor (return air temperature, external room temperature, changeover sensor, etc.)
CE-
KNX data -
CE+
KNX data +
Note: In application "4-pipe with 6-port ball valve as changeover and PICV", Y50
can be connected with a DC 0...10 V fan.
6.3 IAQ - CO
2
connection diagrams
For all applications and equipment combination supporting IAQ - CO
2
function (see
IAQ – CO2 monitoring and control [➙ 68]), the fresh air damper (DC or On/Off) can
be controlled via KNX S-Mode objects or directly connected to the thermostat as
follows:
• DC damper is connected to terminal U1
• ON/Off damper is connected to terminal Q3 (relay output).
Exception:
RDG204KN, for applications with 3-speed fan control: terminal Y4 (triac
output)

Siemens RDG2 KN Series Specifications

General

Brand	Siemens
Model	RDG2 KN Series
Category	Thermostat
Language	English