Siemens Building Technology GVD221.1U Actuator 322838-753 Key Benefits Multi-Horsepower Versatility: Replaces

Key Benefits Multi-Horsepower Versatility: Replaces both 1/3 HP and 1/6 HP motors

preventing high-speed slippage

Field Adjustable Throttling: Features a patented adjustable bimetal allowing for a 2 to 12°F throttling range

System Protection: Integrated safety protocols monitor flame sense and gas valve synchronization to prevent unsafe ignition states

the Nordyne 626491R Defrost Sensor is the specific OEM replacement part required to restore proper defrost cycle initiation

Siemens Building Technology GVD221.1U Actuator 322838-753 Key Benefits Multi-Horsepower Versatility: ReplacesThe Siemens GVD221. 1U OpenAir damper actuator is a robust 120V spring return actuator engineered specifically for high stakes fire and smoke damper control. This 2 position actuator provides critical fail safe performance, ensuring dampers return to a predetermined safety position upon power loss or alarm signal. Designed for commercial HVAC systems, it delivers 30 lb in of torque, making it a reliable solution for managing smoke containment and