{"product_id":"carrier-fiop200e511ga-pressure-switch-jri7yl","title":"OEM Carrier High Pressure Switch HK02ZA442 for FIOP200E511GA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch HK02ZA442 for Model FIOP200E511GA\u003c\/h1\u003e\u003cp\u003eThis OEM high pressure switch (part number \u003cstrong\u003eHK02ZA442\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier FIOP200E511GA\u003c\/strong\u003e packaged unit. The pressure switch monitors the inducer motor's ability to create adequate negative pressure (draft) in the heat exchanger flue path. When the inducer reaches the correct speed and airflow, the pressure switch closes, signaling the control board to proceed with ignition. A failed or out-of-calibration pressure switch causes the furnace or packaged unit to lock out before ignition — typically throwing a fault code related to pressure switch stuck open or inducer failure.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e High pressure switch configuration | Factory-calibrated W.C. (water column) rating matched to FIOP200E511GA | Single-port or dual-port hose fitting as equipped from factory | OEM part number HK02ZA442\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are pre-set to the exact W.C. rating required by your unit's heat exchanger design. Generic or off-brand switches frequently carry wider tolerances, risking nuisance lockouts or — more dangerously — failure to detect a true blocked flue condition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Shut off power and gas before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, manometer (recommended to verify W.C. rating post-install). Inspect inducer hose and port for cracks or blockages before installing the new switch, as these are common root causes of switch failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eFIOP200E511GA\u003c\/strong\u003e packaged unit. Always verify the W.C. rating stamped on your existing switch against your unit's wiring diagram before installation. If you have questions about fitment, our HVAC parts specialists confirm compatibility before your order ships — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909505601907,"sku":"CARRIE-FIOP200E511GA-PRESSURE_SWITCH-HK02ZA442","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909505634675,"sku":"CARRIE-FIOP200E511GA-PRESSURE_SWITCH-HK02ZA442-GEN","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-draft-inducer-HK02ZA442_5d3c5dbc-b2e5-4bcb-9f69-3aee33943f97.jpg?v=1782924874","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fiop200e511ga-pressure-switch-jri7yl","provider":"National HVAC Parts","version":"1.0","type":"link"}