Siemens 125-1957 - Manual (Page 15)

Introduction
Siemens Building Technologies, Inc. 5
Mixed Air/Discharge Air Temperature Sensor
The mixed air/discharge air temperature sensor is a 100K ohm thermistor that connects to
the controller at the screw terminals for Al 3.
For more information about Siemens Building Technologies, Inc. temperature sensors,
contact your local Siemens Building Technologies, Inc. representative.
Actuators
Damper Actuators
The damper actuator used with the Unit Vent Controller—0 to 10V Output is a 0 to 10V spring
return electronic damper motor that positions an outside air damper. A 0 to 10V electronic
damper motor can be used to position a face-and-bypass damper.
Valve Actuators
The valve actuators used with the Unit Vent Controller—0 to 10V Output are modulating
spring return and non-spring return electronic valve motors that position the valves.
Related Equipment
• Relay
Module
• Damper
Actuator(s)
• Valve
Actuator(s)
• Mixed Air/Discharge Air Temperature Sensor (optional)
• TEC Room Temperature Sensor
Contact your local Siemens Building Technologies, Inc. representative for product numbers
and more information.