Engineering Drawings
Thermostats
www.usa.siemens.com/hvaccomponents
A-40
Wiring Diagrams
RAB30.1U...
RAB10.1U...
Key
L
Operating
Voltage
M1
3-speed Fan
N
Neutral
N1
Room
Thermostat
G1
Control Output Fan Speed I
G2
Control Output Fan Speed II
G3
Control Output Fan Speed III
ZV
Zone or Thermal Valve
W/Y
Control Output Actuator
AS
Aqua Sensor
RAB20.1U...
Key
T
Room
Temperature
SD
Switching Differential
SP
Room
Temperature
Setpoint
W
Valve Output Signal Heating
Y
Valve Output Signal Cooling
Operating Diagrams
Heating Mode
Cooling Mode