Iaq - Co Connection Diagrams - Siemens RDG20 KN Series Basic Documentation

RDG26..KN Chilled/heated ceiling with 6-port control ball
valve
Application
N2 Room thermostat RDG26..KN
S1, S2, S3 Switch (keycard, window contact, presence
detector etc.)
B1, B2, B3 Temperature sensor (return air temperature, external room temperature, changeover sensor, etc.)
CE- KNX data -
6.3 IAQ - CO
A6V11545892_en--_c
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.
connection diagrams
2
For all applications and equipment combination supporting IAQ - CO
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)
IAQ - CO2 connection diagrams
4-pipe with 6-port ball valve as changeover and
PICV
V3 6-port modulating control actuator
V4 PICV control valve
CE+ KNX data +
Connection
6
function (see
2
159 | 180