{"product_id":"mcdonnell-miller-144726-rb-24se-l-low-water-cut-off","title":"McDonnell \u0026 Miller 144726 RB-24SE-L Low Water Cut-Off","description":"\u003cp\u003eProtect your boiler investment with the \u003cstrong\u003eMcDonnell \u0026amp; Miller 144726 RB-24SE-L\u003c\/strong\u003e, a dependable low water cut-off designed to monitor critical water levels and prevent damage from dry firing. This unit, identified by model \u003cstrong\u003eRB-24SE-L\u003c\/strong\u003e, serves as an essential safety mechanism for commercial and residential hydronic heating systems, ensuring operational continuity by interrupting burner circuits when water levels drop below the safe threshold.\u003c\/p\u003e\u003cp\u003eThis device utilizes an advanced probe-type sensing technology that detects the presence of water through conductivity, providing a rapid, reliable response time. Unlike mechanical floats that may become obstructed by sediment or scale, this electronic probe system offers consistent performance in varying water quality conditions, maintaining burner shutdown integrity to protect your heat exchanger from thermal stress.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Protection:\u003c\/strong\u003e Prevents dry-fire scenarios and potential catastrophic boiler damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Sensing:\u003c\/strong\u003e Utilizes electronic probe technology for consistent, low-maintenance monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Switching:\u003c\/strong\u003e Designed for rapid circuit interruption during low-water events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Engineered to withstand the rigors of high-temperature hydronic environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for steam and hot water boilers requiring dependable low-water protection, including residential space heating systems and light commercial boiler equipment.\u003c\/p\u003e","brand":"McDonnell \u0026 Miller","offers":[{"title":"Default Title","offer_id":43125826879582,"sku":"144726","price":159.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/144726_image_5931f444-4167-424d-b51c-257baa9aa68d.png?v=1786039058","url":"https:\/\/nationalboilersupply.com\/products\/mcdonnell-miller-144726-rb-24se-l-low-water-cut-off","provider":"National Boiler Supply","version":"1.0","type":"link"}