Data Sheet for Product

13
Siemens
A6V12048672_en--_c
Smart Infrastructure
2021-05-17
Diagrams
Connection terminals
L, N Operating voltage AC 230 V
Y50 DC 0...10 V fan output
M Reference for DC fan
Y1, Y2 Control output “Valve” AC 230 V (N.O., for normally closed valves), output for
compressor or output for electrical heater
X1, X2 Multifunctional input for temperature sensor (e.g. QAH11.1) or potential-free switch
M Measuring neutral for sensor and switch
Connection diagrams
N1 Room thermostat
M1 DC 0...10 V fan
V1...V3 Valve actuator
E1 Electrical heater
S1 Switch (keycard, window contact, etc.)
B1 Temperature sensor (return air
temperature, external room temperature,
changeover sensor, etc.)
C1, C2 Compressor
Application examples
The thermostats support the following applications, which can be configured using the DIP
switches on the front panel of the unit. Depending on the type, On/Off or modulating control
outputs are available.