{"product_id":"carrier-py2pnb042090ab-pressure-switch-jria74","title":"OEM Carrier High Pressure Switch 395\/295 PSI for PY2PNB042090AB","description":"\u003ch1\u003eOEM Carrier High Pressure Switch HK02ZA395 — 395\/295 PSI for Model PY2PNB042090AB\u003c\/h1\u003e\u003cp\u003eThe \u003cstrong\u003eCarrier HK02ZA395\u003c\/strong\u003e is the factory-specified OEM high pressure safety switch for the \u003cstrong\u003eCarrier PY2PNB042090AB\u003c\/strong\u003e packaged unit. This critical refrigerant-circuit safety device monitors system discharge pressure and cuts power to the compressor when pressure exceeds safe operating limits — protecting your compressor from catastrophic failure. A failed or out-of-calibration high pressure switch causes nuisance lockouts, compressor short-cycling, or a unit that trips on high pressure fault codes without a true refrigerant overpressure condition present.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Opens at 395 PSI | Closes (auto-reset) at 295 PSI | 1\/8\" NPT male thread fitting | 240 VAC rated | 6(6)A contact rating | PMAX 41 Bar | Sensata PS80-03-0018 \/ HK02ZA395A cross-reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM part manufactured to exact factory pressure thresholds. Generic substitutes may carry ±5–10% pressure tolerances, risking either premature nuisance trips or — more dangerously — delayed shutoff that exposes your compressor to damaging overpressure events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Recover all refrigerant before removing the switch (EPA Section 608 required). Tools needed: refrigerant recovery machine, manifold gauges, adjustable wrench or 1-1\/8\" open-end wrench, Teflon tape. Always leak-check after reinstallation before recharging. Verify no fault codes remain after startup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM manufacturer warranty against defects. In stock — 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 OEM replacement for \u003cstrong\u003eCarrier model PY2PNB042090AB\u003c\/strong\u003e packaged gas\/electric units. Also replaces legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, and HK02ZA401. Always verify the PSI rating on your existing switch's data label before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640537698675,"sku":"CARRIE-PY2PNB042090AB-PRESSURE_SWITCH-HK02ZA395","price":67.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640537731443,"sku":"CARRIE-PY2PNB042090AB-PRESSURE_SWITCH-HK02ZA395-GEN","price":59.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_d1367556-5e63-49e9-a15c-68bb7f46ddb0.jpg?v=1775033316","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py2pnb042090ab-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}