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Dual-Voltage Versatility: Field-selectable 120 or 240 Vac power input accommodates diverse electronic actuator drive power sources
How can I verify the accuracy of my solid state enthalpy sensor readings
ensuring the burner circuit is interrupted if levels drop below safe thresholds
As a Nordyne furnace part
Proper calibration and maintenance of this sensor are essential for maintaining life safety protocols and optimizing ventilation control strategies
Siemens Building Technology GJD221.1U Actuator 320074-702 Dual-Voltage Versatility: Field-selectable 120 orThe Siemens GJD221. 1U is a high performance fire smoke damper actuator designed for critical life safety applications. Engineered for 120V systems, this OpenAir model delivers 20 lb in torque to ensure reliable operation of UL listed smoke control and combination fire smoke dampers. As a veteran grade spring return actuator, it features a 2 position (on off) control signal with a rapid 30 second driving time and a 15 second fail safe spring return.
US$ 33.89
US$ 189.19
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