Proper mechanical integration ensures the sensor maintains the specific ohm readings required for the control module to function without nuisance tripping

preventing common communication errors between the indoor and outdoor units

making it essential for professional technicians and facility managers performing routine maintenance or emergency repairs

and a variety of ceramic insulators and bushings (including standard

Siemens Building Technology 331-2968 Actuator R-134A Proper mechanical integration ensures theAs 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