{"product_id":"mcdonnell-miller-144706-fpc-1000-u-lwco-with-extended-barrel-probe","title":"McDonnell \u0026 Miller 144706 FPC 1000-U LWCO with Extended Barrel Probe","description":"\u003cp\u003eProtect your hydronic heating system from dry-firing damage with the \u003cb\u003eMcDonnell \u0026amp; Miller 144706\u003c\/b\u003e FPC 1000-U Low Water Cut-Off. This reliable control is designed for precision water level sensing, utilizing an \u003cb\u003eFPC 1000-U\u003c\/b\u003e extended barrel probe to ensure your boiler shuts down instantly when water levels drop below the required threshold, preventing costly equipment failure.\u003c\/p\u003e\u003cp\u003eThe unit operates using advanced conductive sensing technology that monitors the electrical circuit between the probe and the boiler shell. When water level exposure is lost, the circuit breaks, signaling the controller to interrupt the burner circuit immediately. This configuration provides a fast-acting safeguard essential for maintaining the longevity of high-efficiency boiler systems.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eReliable Sensing:\u003c\/b\u003e Uses advanced probe-based conductance technology for accurate water level monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eExtended Reach:\u003c\/b\u003e Features an extended barrel probe design tailored for specific mounting configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFail-Safe Operation:\u003c\/b\u003e Automatically interrupts burner operation during low-water conditions to prevent overheating.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Designed for commercial and residential hydronic boilers, space heating applications, and industrial steam systems requiring high-reliability low-water cutoff protection.\u003c\/p\u003e","brand":"McDonnell \u0026 Miller","offers":[{"title":"Default Title","offer_id":43125826748510,"sku":"144706","price":354.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/144706_image_f165c912-874f-4281-94c1-202d952e32ed.png?v=1786039034","url":"https:\/\/nationalboilersupply.com\/products\/mcdonnell-miller-144706-fpc-1000-u-lwco-with-extended-barrel-probe","provider":"National Boiler Supply","version":"1.0","type":"link"}