User Manual

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Siemens RDF800KN… CB1N3174en
Smart Infrastructure Touch Screen Flush-mount Room Thermostats with KNX Communications 2020-02-21
Applications for fan coil systems
Application and output signal, DIP switches, diagram
· 2-pipe fan coil unit ON/OFF
(heating or cooling)
1
ON
2 3
· 2-pipe fan coil unit with el. heater
(heating or cooling) ON/OFF
1
ON
2 3
3076D20
(B1)
M1
V1
T
B2
T
T
(B1)
V1
M1
3171D21
T
B2
E1
T
(B1)
T
(B1)
· 2-pipe fan coil unit 3-position
(heating or cooling)
1
ON
2 3
· 4-pipe fan coil unit ON/OFF
(heating and cooling)
1
ON
2 3
3076D20
(B1)
M1
V1
T
B2
T
T
(B1)
T
V2
V1
M1
3076D22
(B1)
T
(B1)
V1 Heating or heating / cooling valve actuator B1 Return air temperature sensor or external room
temperature sensor (optional)
V2 Cooling valve actuator B2 Changeover sensor (optional)
E1 Electric heater M1 3- or 1-speed fan