Siemens RDG20 KN Series - Page 165

Connection
Connection diagrams
6
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RDG26..KN
DC 0…10 V fan
1-speed/3-speed fan
Application
Equipment
Terminals
Terminals
V1
Q1
Y10
Y50
Q1, Q2, Q3
Y10
2-pipe
YHC
DC
3-speed
Control outputs:
DC
V1
✓
✓
V1
On/Off
V1
Application
Equipment
Terminals
Terminals
V1
V2
Q1
Q2
Y10
Y20
Y50
Q1, Q2, Q3
Y10
Y20
2-pipe + RAD
4-pipe
2-pipe/2-stage
YHC
YH
YHC1
YR
YC
YHC2
DC
3-speed
Control outputs:
DC
DC
V1
V2
✓
✓
V1
V2
DC
On/Off
V2
V1
On/Off
DC
V1
V2
On/Off
On/Off
V1
V2
Application
Equipment
Terminals
Terminals
V1
V2
Q1
Q2
Y10
Y20
Y50
Q1, Q2, Q3
Y10
Y20
2-pipe with
electric heater
YHC
YE
DC
3-speed
Control outputs:
DC
DC
V1
V2
✓
✓
V1
V2
DC
On/Off
V2
V1
On/Off
DC
V1
V2
On/Off
On/Off
V1
V2
Application
Equipment
Terminals
Terminals
V1
V2
V3
Q2
Y10
Y20
Y30
Y50
Q1, Q2, Q3
Y10
Y20
Y30
4-pipe with
electric heater
YH
YC
YE
DC
3-speed
Control outputs:
DC
DC
DC
V1
V2
V3
✓
✓
V1
V2
V3
DC
DC
On/Off
V3
V1
V2
Application
Equipment
Terminals
Terminals
V1
V2
V3
V4
U1
Y10
Y20
Y30
Y50
Q1, Q2, Q3
Y10
Y20
Y30
U1
4-pipe/2-stage
(RDG26..KN)
YH1
YC1
YH2
YC2
DC
3-speed
Control outputs:
DC
DC
DC
DC
V4
V1
V2
V3
✓
✓
V1
V2
V3
V4
N1
Room thermostat RDG26..
M1
1-speed or 3-speed fan, DC 0…10 V fan
S1, S2, S3
Switch (keycard, window contact, presence detector
etc.)
V1, V2, V3, V4
Valves actuators:
On/Off or DC 0...10 V, heating, cooling,
radiator, heating/cooling, 1
st
or 2
nd
stage
YE
Electric heater
B1, B2, B3
Temperature sensor (return air temperature,
external room temperature, changeover
sensor, etc.)
YH
Heating valve actuator
YHC
Heating/cooling valve actuator
YC
Cooling valve actuator
YR
Radiator valve actuator
CE+
KNX data +
YHC1/YH1/YH2/
YHC2/YC1/YC2
1
st
/2
nd
stage
CE-
KNX data -
Note: Use X3 instead if there is no KNX.