2-pipe + RAD
4-pipe
2-pipe/2-stage
2-pipe with
electric heater
4-pipe with
electric heater
4-pipe/2-stage
(RDG20..KN)
1-speed or 3-speed fan, DC 0…10 V fan
Switch (keycard, window contact, presence
detector etc.)
Temperature sensor (return air temperature, external
room temperature, changeover sensor, etc.)
Valve actuators:
On/Off or PWM, 3-position, heating, cooling,
radiator, heating/cooling, 1
st
or 2
nd
stage
Heating/cooling valve actuator
YHC1/YH1/YH2/
YHC2/YC1/YC2
Note: Use X3 instead if there is no KNX.