Siemens Building Technology 331-2930 Actuator 340155-7024 For proper 150 PSI relief

For proper 150 PSI relief operation

using the 24V blower signal to "sense" when to provide line voltage to the cleaners

While the 160 degree limit switch specifications are common

Mitsubishi control boards utilize specific resistance-temperature curves

It serves as a fan control relay

Siemens Building Technology 331-2930 Actuator 340155-7024 For proper 150 PSI reliefThe Siemens Building Technology 331 2930 Actuator is a heavy duty, metal fabricated No. 4 pneumatic damper actuator designed for reliable control of HVAC systems. This pneumatic piston type actuator features an integral pivot mount and 4 inch stroke, providing the linear force necessary for the gradual or positive actuation of outdoor air dampers, mixing boxes, and fire smoke dampers. With a 3 13 psi spring range, this unit is engineered for precision