{"product_id":"lochinvar-100166248-pressure-switch-0-95-with-tubing-for-lochinvar-ch-1801-boiler","title":"Lochinvar 100166248 - Pressure Switch, 0.95\", with Tubing, for CH1801 Boiler","description":"\u003cp\u003eThis reliable pressure switch monitors airflow within your boiler system to ensure safe and efficient combustion operation. Specifically engineered for use in Lochinvar CH 1801 boilers, the \u003cstrong\u003e100166248\u003c\/strong\u003e provides a precise 0.95 inch water column (WC) activation threshold to verify exhaust and intake integrity. The unit arrives ready for integration, including the necessary tubing for a streamlined installation process.\u003c\/p\u003e\u003cp\u003eAs an SPDT (Single Pole Double Throw) switch, this component acts as a safety interlock that prevents the boiler from firing if proper venting pressure is not detected. It operates by sensing pressure differentials across the system, signaling the ignition control board to proceed only when airflow meets the manufacturer's specified safety parameters.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Calibration:\u003c\/strong\u003e Factory-set at 0.95 IN WC for exact venting safety requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Interlock:\u003c\/strong\u003e SPDT contact configuration ensures reliable system shutdown if airflow is compromised.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Integration:\u003c\/strong\u003e Includes essential tubing to minimize field installation time and complexity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Engineered to withstand the thermal demands of high-capacity hydronic environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e This pressure switch is specifically compatible with Lochinvar Copper-Fin CB and CW series boilers and water heaters, model range 987 through 2067, as well as the CH 1801 series.\u003c\/p\u003e","brand":"LOCHINVAR","offers":[{"title":"Default Title","offer_id":43137694236766,"sku":"100166248","price":254.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/187175172.jpg?v=1786197719","url":"https:\/\/nationalboilersupply.com\/products\/lochinvar-100166248-pressure-switch-0-95-with-tubing-for-lochinvar-ch-1801-boiler","provider":"National Boiler Supply","version":"1.0","type":"link"}