{"product_id":"carrier-ph2pnb060000ab-pressure-switch-jria74","title":"OEM Carrier High \u0026 Low Pressure Switch Kit HK02ZA395 \/ HK02ZB044 — PH2","description":"\u003ch1\u003eOEM Carrier High \u0026amp; Low Pressure Switch Kit HK02ZA395 \/ HK02ZB044 for Model PH2PNB060000AB\u003c\/h1\u003e\u003cp\u003eThis OEM pressure switch kit includes both the \u003cstrong\u003ehigh pressure switch (HK02ZA395)\u003c\/strong\u003e and the \u003cstrong\u003elow pressure switch (HK02ZB044)\u003c\/strong\u003e — the factory-specified refrigerant safety switches for \u003cstrong\u003eCarrier model PH2PNB060000AB\u003c\/strong\u003e heat pumps. These switches protect the compressor from operating outside safe refrigerant pressure limits. When either switch fails or trips, the system will lock out and refuse to run heating or cooling cycles. Common failure symptoms include the system shutting off immediately after startup, an error code indicating a pressure fault, or a unit that won't call for cooling or heating despite a valid thermostat signal.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — High Pressure Switch (HK02ZA395):\u003c\/strong\u003e Opens at 406 PSI | Closes at 300 PSI | 1\/8\" NPT thread | Sensata PS80 platform | 240 VAC rated | Replaces legacy part numbers including 312926-217, HK02ZA380, HK02ZA400, and HK02ZA435\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — Low Pressure Switch (HK02ZB044):\u003c\/strong\u003e Opens at 7 PSI | Closes at 22 PSI | 50\" lead wires | 24V | Country of origin: Mexico | OEM Carrier RCD component\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier pressure switches are manufactured to exact factory tolerances and certified to EN12263, EN60730-2-6, and ENEC05 safety standards. Aftermarket alternatives frequently deviate from specified cut-in\/cut-out pressures, risking compressor damage and voiding equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires recovering refrigerant before disconnecting high-side switch per EPA Section 608 regulations. Tools needed: manifold gauge set, torque wrench, 1\/8\" NPT fittings, leak detector. Always verify system pressure after reinstallation before restarting the compressor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on both switches. In stock — ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for \u003cstrong\u003eCarrier PH2PNB060000AB\u003c\/strong\u003e packaged heat pump units. Verify your model and serial number on the unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641451893107,"sku":"CARRIE-PH2PNB060000AB-PRESSURE_SWITCH-HK02ZA395","price":116.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641451925875,"sku":"CARRIE-PH2PNB060000AB-PRESSURE_SWITCH-HK02ZA395-GEN","price":102.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_3f316bd0-974d-4ade-a6d1-9222e2daa7fb.jpg?v=1775033166","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph2pnb060000ab-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}