Proper installation helps stabilize the burner flame and optimizes thermal output

While the operating set point is limited to 50" W

and maintain the original engineering specifications of your HVAC system

analog electronic VAV flow controller-actuator engineered for pressure-independent variable air volume terminal units

With a compact aluminum back plate

Dwyer Instruments DA-31-2-1 Pressure Switch 328140-751 Proper installation helps stabilize theThe Dwyer Instruments DA 31 2 1 Pressure Switch is a high sensitivity control solution designed for demanding mechanical HVAC and process equipment applications. Featuring a durable brass bourdon tube, this DA series pressure switch provides exceptional repeatability of 1% across its full range. This specific model is a mercury switch configuration, offering a single pole single throw (SPST) contact that is open on increase (open on rise). With an