{"product_id":"lennox-75w61-gas-furnace-pressure-switch-0-75-in-wc","title":"Lennox 75W61 Gas Furnace Pressure Switch 0.75 in Wc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe LENNOX 75W61 is a gas furnace pressure switch rated at 0.75 inches water column (WC). Pressure switches are safety devices that monitor the negative pressure created by the inducer motor during furnace operation. When the inducer establishes the correct draft, the switch closes and allows the ignition sequence to proceed. If draft pressure falls outside the set point, the switch opens and locks out the furnace, preventing unsafe operation. Licensed HVAC technicians install and replace this component as part of routine furnace diagnostics and maintenance.\u003c\/p\u003e\u003cp\u003eThis pressure switch is designed for use in gas furnace applications where a 0.75 inches WC set point is required. It is typically found in induced-draft and condensing gas furnace systems. When a furnace fails to ignite or displays a pressure switch fault code, this component is a common diagnostic target. Replacement is standard practice when the switch tests open under correct draft conditions or when the diaphragm has failed.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSet point rated at 0.75 inches water column (WC)\u003c\/li\u003e\n\u003cli\u003eFunctions as a safety interlock monitoring inducer motor draft pressure\u003c\/li\u003e\n\u003cli\u003ePrevents ignition sequence from proceeding under unsafe draft conditions\u003c\/li\u003e\n\u003cli\u003eDirect OEM-style replacement for gas furnace applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement pressure switch for induced-draft gas furnace systems requiring a 0.75 inches WC set point.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and replacement should be performed by a licensed HVAC technician. Before servicing, shut off power to the furnace at the disconnect switch and turn off the gas supply at the shutoff valve. Inspect the pressure tubing and port for blockages or cracks before installing the new switch, as a failed tube can cause repeat pressure switch faults. Follow all applicable local mechanical codes and manufacturer service instructions during replacement.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Pressure Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Point\u003c\/strong\u003e: 0.75 inches WC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsed On\u003c\/strong\u003e: Gas Furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: LENNOX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 75W61\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LENNOX","offers":[{"title":"Default Title","offer_id":51284006797618,"sku":"75W61","price":27.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309278072.png?v=1781065822","url":"https:\/\/voomisupply.com\/products\/lennox-75w61-gas-furnace-pressure-switch-0-75-in-wc","provider":"Voomi Supply","version":"1.0","type":"link"}