Siemens Building Technology 331-2968 Actuator 321142-301 preventing accidental installation of incompatible

preventing accidental installation of incompatible infrared or ultraviolet-only amplifiers into the 7800 series module

secure installation in tight cabinet clearances

It should never be mounted with the actuator projecting downwards to prevent moisture or debris from entering the electronics

this Model 3 E-P valve serves as a critical interlock between electrical signals and pneumatic actuators

allowing for flexible mounting in dense equipment footprints

Siemens Building Technology 331-2968 Actuator 321142-301 preventing accidental installation of incompatibleAs a veteran HVACR technician, you know the reliability of the Siemens 331 2968 No. 4 pneumatic actuator. This pneumatic damper actuator is built with a rugged, all metal body designed for the positive or gradual actuation of HVAC dampers in mixing boxes, terminal units, and unit ventilators. Featuring a 4 inch stroke and an effective diaphragm area of 17. 9 sq. in., this unit provides the necessary thrust for precise air volume control. The 8 13 psi