{"product_id":"mcdonnell-miller-153927-pse-802-rx2-24-low-water-cut-off-control","title":"McDonnell \u0026 Miller 153927 PSE-802-RX2-24 Low Water Cut-Off Control","description":"\u003cp\u003eProtect your commercial boiler investment with the \u003cstrong\u003eMcDonnell \u0026amp; Miller 153927\u003c\/strong\u003e, also known by model number \u003cstrong\u003ePSE-802-RX2-24\u003c\/strong\u003e. This high-performance low water cut-off (LWCO) is engineered to provide precise monitoring and immediate response if boiler water levels drop below the critical threshold, effectively preventing catastrophic equipment damage caused by dry firing.\u003c\/p\u003e\u003cp\u003eThe unit utilizes sophisticated electronic sensing technology to detect the presence of water within the boiler vessel. By completing an electrical circuit through the probe, the control ensures the burner circuit remains energized only when sufficient water is present, providing an essential safety interlock for modern hydronic heating systems.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Shutdown:\u003c\/strong\u003e Provides immediate burner interruption when low water conditions are detected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid-State Reliability:\u003c\/strong\u003e Utilizes advanced electronic components for consistent, maintenance-free sensing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Compatibility:\u003c\/strong\u003e Designed for standard 24V boiler control circuitry for easy integration.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for replacement or original equipment installation in commercial hydronic boilers, steam heating systems, and industrial processing vessels requiring automated dry-fire protection.\u003c\/p\u003e","brand":"McDonnell \u0026 Miller","offers":[{"title":"Default Title","offer_id":43125839855710,"sku":"153927","price":408.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/153927_image_f3f198f8-5d58-4321-8b17-342793ecd6b5.png?v=1786039338","url":"https:\/\/nationalboilersupply.com\/products\/mcdonnell-miller-153927-pse-802-rx2-24-low-water-cut-off-control","provider":"National Boiler Supply","version":"1.0","type":"link"}