Data Sheet for Product

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Siemens RDF800… A6V101123362_en--_d
Smart Infrastructure Touch screen flush-mount standalone room thermostats 2019-10-29
Connection diagrams
Application
N1 Room thermostat RDF800...
M1 1- or 3-speed fan
V1 Valve actuator, 2- or 3-position
V1, V2 Valve actuator, 2-position
E1 Electric heater
C1, C2 1-stage compressor
S1, S2 Switch (keycard, window contact,
presence detector, etc.)
B1, B2 Temperature sensor (return air
temperature, external room
temperature, changeover sensor,
etc.)
X1, X2 Inputs
2-pipe / heating or
cooling – ON/OFF
2-pipe, / heating or
cooling – 3-position
− Y1 = Open
− Y2 = Close
2-pipe and el.
heater/
Heating or cooling
and el. heater
4-pipe /
Heating and radiator
− V1 = Heating
− V2 = Cooling
1-stage compressor
− C1 = Heating
and / or
− C2 = Cooling
1-stage compressor
and electric heater
Example1: With SUA21/3
2-pipe fan coil application
Example2: With SUA21/3
4-pipe fan coil application
L
N
10 A
L
N
Y1
Y2
AC 230 V
X1
M
X2
N1
M1
V1
5(2)A
Max.
5(2)A
Max.
B2
S2
B1
S1
3171A12
Q1 Q2 Q3
I II III
V1
5(2)A
Max.
E1
5(2)A
Max.
5(2)A
Max.
V1
C1
5(2)A
Max.
V1
5(2)A
Max.
V2
5(2)A
Max.
C1
5(2)A
Max.
E1
5(2)A
Max.
C2
5(2)A
Max.