Table of Contents
Connection diagrams
Legend
Appication examples
8 / 9
Siemens
Building Technologies
Lx
Q11
3V
Q12
Q14
Q22
Y1
5(2) A
max
Nx
Lx
Live, AC 24...230 V
Nx
Neutral conductor, AC 24...230 V
Y1
Heating valve or wall-hung boiler
Y2
DHW heating equipment
N1
T
F1
T
F2
T
DHW
Y2
M1
Room thermostat with direct control of a
gas-fired wall-hung boiler with inde-
pendent control of DHW
DHW
T
N1
Y1
M1
Room thermostat with direct control of a
heating circuit pump (precontrol by
manual mixing valve) with independent
control of DHW
RDD100.1DHW Room thermostat with independent DHW control
Q21
RDD100.1DHW
Q24
Y2
5(2) A
max
DHW
F2
T
Y2
Room thermostat with direct control of a
gas-fired floor-standing boiler with in-
dependent control of DHW
F1
Thermal reset limit thermostat
F2
Safety limit thermostat
M1
Circulating pump
N1
RDD100.1DHW room thermostat
Y1
Mixing 3-port valve with manual
adjustment
Y2
Magnetic valve
DHW
DHW heating equipment
N1
T
F1
T
M1
CB1N1421en_01
2013-03-14
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