Measure the vacuum at the 1/4" barb using a manometer while the inducer is running

this industrial HVAC actuator delivers consistent force to manage moderate mechanical loads even in space-constrained installations

What type of compressor is this

allowing for reliable operation with water

Siemens Building Technology GQD156.1P Acutator 323613-751 Measure the vacuum at theThe Siemens OpenAir GQD156. 1P is a high performance, spring return rotary electronic damper actuator engineered for precise control in critical HVAC applications. Delivering a 20 lb in torque (2 Nm) rating, this unit is purpose built for modulating control of small dampers, economizers, and residential zone systems. Operating on a universal 24 VAC DC power supply, the GQD156. 1P utilizes a 2 to 10 VDC modulating control signal with integrated