37 / 46
Siemens RDF300… / RDF340... / RDF400… / RDF600… Basic Documentation CE1P3076.en
Smart Infrastructure 2020-02-21
6.2 Connection diagrams
6.2.1 Water-based fan coil applications with RDF300... /
RDF400... / RDF600…
Application:
2-pipe fan coil units
M1 3-speed fan
N1 Room thermostat
RDF300... / RDF400... / RDF600…
V1 Zone valve
S1, S2 Switch (keycard, window contact, etc.)
B1, B2 Temperature sensor (return air temperature,
external room temperature, changeover
sensor, etc.)
Application:
2-pipe fan coil units
with electrical heater
M1 3-speed fan
N1 Room thermostat
RDF300... / RDF400... / RDF600…
V1 Zone valve
E1 Electrical heater
S1, S2 Switch (keycard, window contact, etc.)
B1, B2 Temperature sensor (return air temperature,
external room temperature, changeover
sensor, etc.)
Application:
4-pipe fan coil units
M1 3-speed fan
N1 Room thermostat
RDF300... / RDF400... / RDF600…
V1 Zone valve “Heating”
V2 Zone valve “Cooling”
S1, S2 Switch (keycard, window contact, etc.)
B1, B2 Temperature sensor (return air temperature,
external room temperature, changeover
sensor, etc.)
Application:
2-pipe fan coil units,
3-position
M1 3-speed fan
N1 Room thermostat
RDF300... / RDF400... / RDF600…
V1 Zone valve, 3-position
S1, S2 Switch (keycard, window contact, etc.)
B1, B2 Temperature sensor (return air temperature,
external room temperature, changeover
sensor, etc.)
Application:
2-pipe fan coil units
with single-speed fan
Note: Single-speed fan
possible also in other
applications!
M1 Single-speed fan
N1 Room thermostat
RDF300... / RDF400... / RDF600…
V1 Zone valve
S1, S2 Switch (keycard, window contact, etc.)
B1, B2 Temperature sensor (return air temperature,
external room temperature, changeover
sensor, etc.)