while the 1/8" NPT air connection facilitates straightforward integration into existing pneumatic lines

this mechanism eliminates the need for bellows

The Johnson Controls T-3100-3 is a precision-engineered pneumatic thermostat designed for non-relay type proportional control in commercial HVAC systems

Universal Voltage Compatibility: Field-configurable for 110V

What is the maximum operating temperature for the display

Siemens Building Technology 147-314 Kit 322057-301 while the 1/8" NPT airThe Siemens Building Technology 147 314 Kit is a specialized pneumatic damper actuator mounting kit engineered for field installation of the RL 147 positioning relay. Designed specifically for compatibility with No. 4 pneumatic actuators, this professional grade hardware set ensures precise feedback and localized control in complex HVACR air handling systems. A veteran technician understands that proper actuator linkage and relay alignment are