and Dunkirk Empire II Series II boilers

it can lead to compressor flooding

manually operated shut-off ball valve designed for bi-directional flow in demanding HVACR environments

and battery-powered gas-fired appliances

While optimized for natural gas

Dwyer Instruments 1823-10 Pressure Switch 320735-701 and Dunkirk Empire II SeriesFor technicians and contractors requiring reliable airflow monitoring, the Dwyer Instruments 1823 10 Pressure Switch delivers professional grade precision in a compact footprint. This low differential pressure switch is engineered for a range of 2. 0" w. c. to 10" w. c., making it an ideal choice for HVAC mechanical equipment control and industrial process applications. It features a single pole double throw (SPDT) switch configuration, allowing for