{"product_id":"carrier-py1ppb048115aaaa-pressure-switch-jria74","title":"OEM Carrier High Pressure Switch 395\/295 PSI — PY1PPB048115AAAA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch HK02ZA395 — 395\/295 PSI for Model PY1PPB048115AAAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM high pressure switch (part number \u003cstrong\u003eHK02ZA395\u003c\/strong\u003e) factory-specified for the \u003cstrong\u003eCarrier PY1PPB048115AAAA\u003c\/strong\u003e packaged heat pump unit. The high pressure switch is a refrigerant-side safety device that monitors system discharge pressure in real time. When head pressure rises beyond safe operating limits — due to a dirty condenser coil, failed condenser fan motor, refrigerant overcharge, or blocked airflow — the switch opens the control circuit, shutting down the compressor to prevent catastrophic failure. A faulty switch will trigger nuisance lockouts, cause repeated high-pressure fault codes, or fail to protect the system if it sticks closed.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Opens at \u003cstrong\u003e395 PSI\u003c\/strong\u003e | Closes at \u003cstrong\u003e295 PSI\u003c\/strong\u003e | 1\/8\" NPT thread | Quick-connect electrical terminals | Rated 6(6)A at 240 VAC | Sensata PS80-03-0018 platform\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HK02ZA395 is manufactured to exact Carrier factory tolerances for cut-out and cut-in pressure. Aftermarket switches can deviate significantly in trip point accuracy, risking either false lockouts or inadequate compressor protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always recover and evacuate refrigerant before removing the switch (EPA 608 certification required). Tools needed: refrigerant recovery machine, manifold gauges, 1\" open-end wrench, quick-connect terminal puller. Photograph wiring before disconnecting. Leak-check with nitrogen after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as the direct factory replacement for \u003cstrong\u003eCarrier PY1PPB048115AAAA\u003c\/strong\u003e packaged heat pump units. Also replaces legacy part numbers including 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435, HK02ZA500, and HK02ZA501. Verify your unit's data plate and existing switch PSI rating before ordering. Our parts specialists are available to confirm fitment — order with confidence.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640792404339,"sku":"CARRIE-PY1PPB048115AAAA-PRESSURE_SWITCH-HK02ZA395","price":122.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640792437107,"sku":"CARRIE-PY1PPB048115AAAA-PRESSURE_SWITCH-HK02ZA395-GEN","price":107.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_73998916-a4cf-4e8c-928e-c800dc0628e3.jpg?v=1775033387","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1ppb048115aaaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}