{"product_id":"carrier-ph3ana030000bcaa-pressure-switch-1vlc9v","title":"OEM Carrier High Pressure Switch 670\/470 PSI for PH3ANA030000BCAA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch 670\/470 PSI for Model PH3ANA030000BCAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier high pressure switch (part number \u003cstrong\u003e312926-252\u003c\/strong\u003e), the factory-specified replacement for \u003cstrong\u003eCarrier model PH3ANA030000BCAA\u003c\/strong\u003e packaged heat pump systems. The high pressure switch is a critical refrigerant-circuit safety control: it continuously monitors system high-side pressure and cuts out the compressor if pressure exceeds the safe operating threshold, protecting the compressor and refrigerant circuit from catastrophic over-pressurization damage. A failed or out-of-spec pressure switch commonly causes nuisance lockouts, a compressor that shuts off prematurely, or a system that will not run at all. Always confirm a faulty switch with manifold gauge readings before replacing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Cut-out pressure 670 PSI | Reset pressure 470 PSI | Genuine Carrier OEM part | Meets EN12263 and EN60730-2-6 safety standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM switches are calibrated to exact factory cut-out and reset pressures. Aftermarket switches frequently carry wider pressure tolerances, risking either false trips or — more dangerously — failure to protect the compressor at true over-pressure conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Refrigerant circuit work requires EPA 608 certification. The system must be recovered or isolated before replacing the switch. Tools needed: manifold gauge set, adjustable wrenches, leak detection solution. Always verify pressure thresholds after installation with a gauge set before returning the unit to service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered by 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for \u003cstrong\u003eCarrier model PH3ANA030000BCAA\u003c\/strong\u003e packaged heat pump equipment. Verify OEM part number \u003cstrong\u003e312926-252\u003c\/strong\u003e against your unit's data plate or wiring diagram before ordering. Not sure it fits? Our parts specialists verify fitment before you buy — contact us anytime.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641437901171,"sku":"CARRIE-PH3ANA030000BCAA-PRESSURE_SWITCH-312926-252","price":61.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641437933939,"sku":"CARRIE-PH3ANA030000BCAA-PRESSURE_SWITCH-312926-252-GEN","price":53.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-312926-252_ec66fb83-efe5-48e5-8a5c-f00231f8e4be.jpg?v=1775033513","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph3ana030000bcaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}