Siemens Building Technology 331-4510 Actuator 321894-708 protecting both the equipment and

protecting both the equipment and the structure from improper combustion cycles

When executing a refrigerator thermostat fix

Contractor Friendly: Designed with a small footprint for easy retrofitting and clear terminal designations (G

this is a single stage control board

Siemens Building Technology 331-4510 Actuator 321894-708 protecting both the equipment andThe Siemens 331 4510 is a heavy duty No. 3 pneumatic damper actuator designed for reliable, modular, or two position control of HVAC dampers and air valves. Built with a rugged, metal fabricated housing, this pneumatic actuator features an ozone resistant rolling rubber diaphragm that ensures consistent performance in demanding mechanical environments. It operates with a 5 to 10 psi nominal spring range and delivers a precise 2 3 8 inch stroke for