{"product_id":"carrier-py1pjb048115nbaa-pressure-switch-jria74","title":"OEM Carrier High Pressure Switch 395\/295 PSI — PY1PJB048115NBAA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch HK02ZA395 — 395\/295 PSI for Model PY1PJB048115NBAA\u003c\/h1\u003e\u003cp\u003eThis genuine OEM high pressure switch (part number \u003cstrong\u003eHK02ZA395\u003c\/strong\u003e) is the factory-specified refrigerant-side safety device for the \u003cstrong\u003eCarrier PY1PJB048115NBAA\u003c\/strong\u003e packaged unit. Wired in series with the compressor control circuit, it continuously monitors refrigerant discharge pressure and opens the circuit at \u003cstrong\u003e395 PSI\u003c\/strong\u003e to protect the compressor from catastrophic over-pressure damage. Once system pressure drops, the switch automatically resets at \u003cstrong\u003e295 PSI\u003c\/strong\u003e, restoring normal operation. Common failure symptoms include nuisance high-pressure lockouts, compressor short-cycling, or the unit refusing to cool even when refrigerant charge and airflow appear normal — a faulty switch can signal a fault where none exists.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Opens at 395 PSI | Closes (resets) at 295 PSI | 1\/8\" NPT male port | 240 VAC rated | SPST normally-closed | Sensata PS80 platform (cross-ref: PS80-03-0018)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine Carrier OEM switches are calibrated to factory ±tolerance. Aftermarket equivalents can drift in setpoint over time, causing either nuisance trips or — more dangerously — failing to open under true over-pressure conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Recover refrigerant before removing the switch (EPA Section 608 required). Tools needed: adjustable wrench, refrigerant recovery machine, manifold gauge set, Teflon tape. Always leak-check the new fitting after installation.\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 before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Verified fit for Carrier model \u003cstrong\u003ePY1PJB048115NBAA\u003c\/strong\u003e. Also replaces legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435, HK02ZA500, and HK02ZA501. Confirm your unit's data plate and existing switch port size before ordering. Our fitment team is available to verify compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641012048243,"sku":"CARRIE-PY1PJB048115NBAA-PRESSURE_SWITCH-HK02ZA395","price":65.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641012081011,"sku":"CARRIE-PY1PJB048115NBAA-PRESSURE_SWITCH-HK02ZA395-GEN","price":57.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_98e236ff-740d-420a-8ff5-81331380df43.jpg?v=1775033384","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1pjb048115nbaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}