Siemens RDF302/VB User Manual

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Siemens RDF302 Basic documentation CE1P3079en
Smart Infrastructure 2022-06-17
3.4.1 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 electric
heater ON/OFF
(heating or cooling)
1
ON
2 3
3076D20
(B1)
M1
V1
T
B2
T
T
(B1)
V1
M1
3171D 21
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
3076D 22
(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
*)
RDF302.B does not have inputs X1 and X2, so sensor B1 and B2 are not
included in RDF302.B application.

Siemens RDF302/VB Specifications

General

Brand	Siemens
Model	RDF302/VB
Category	Thermostat
Language	English