{"product_id":"lochinvar-a-o-smith-100113143-blocked-inlet-switch","title":"Lochinvar \u0026 A.O. Smith 100113143 - Blocked Inlet Switch","description":"\u003cp\u003eMaintaining proper airflow is critical for efficient boiler combustion, and the \u003cstrong\u003e100113143\u003c\/strong\u003e Blocked Inlet Switch serves as a protective safeguard for your system. Designed for compatibility with select Lochinvar and A.O. Smith units, this switch monitors intake pressure to prevent hazardous operating conditions.\u003c\/p\u003e\u003cp\u003eThis safety component functions by sensing negative pressure within the venting system. If the inlet becomes obstructed, the switch triggers an automatic system shutdown, preventing incomplete combustion and protecting the burner assembly from potential damage.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Integration:\u003c\/strong\u003e Directly communicates with the ignition control module to halt operation during intake blockages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Calibration:\u003c\/strong\u003e Factory-tested to meet specific pressure thresholds for consistent, reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Housing:\u003c\/strong\u003e Encased in high-grade materials designed to withstand the thermal fluctuations of hydronic mechanical rooms.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e This switch is engineered for specific Lochinvar and A.O. Smith boiler models requiring intake monitoring for code-compliant venting safety.\u003c\/p\u003e","brand":"LOCHINVAR","offers":[{"title":"Default Title","offer_id":43138001502302,"sku":"100113143","price":156.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/aaa_323b2a67-a76d-4b3e-8a12-3cee2c51a649.jpg?v=1786205141","url":"https:\/\/nationalboilersupply.com\/products\/lochinvar-a-o-smith-100113143-blocked-inlet-switch","provider":"National Boiler Supply","version":"1.0","type":"link"}