{"product_id":"carrier-ph2pnb024000ac-transformer-h3025m","title":"OEM Carrier Control Transformer 75VA 24V for PH2PNB024000AC","description":"\u003ch1\u003eOEM Carrier Control Transformer 75VA 200\/230\/460V → 24V for Model PH2PNB024000AC\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part #HT01BD242) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH2PNB024000AC\u003c\/strong\u003e packaged heat pump system. The transformer steps down high-voltage supply power to the 24V AC signal that energizes every low-voltage control circuit in your system — including the thermostat, contactor coil, reversing valve solenoid, and control board. When this transformer fails, the entire control circuit goes dark: the thermostat loses power, the system refuses to respond to any commands, and you may detect a faint buzzing or burning smell near the air handler section.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 75VA capacity | Primary: 200\/230\/460V multi-tap | Secondary: 24V AC | 50\/60Hz | Foot-mount configuration | OEM part #HT01BD242\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM transformer wound to factory tolerances. Generic transformers may be under-rated for 75VA continuous loads, leading to overheating, nuisance trips, and premature failure — especially in commercial packaged units with high control-circuit demand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before proceeding. Tools needed: multimeter (verify 24V output after install), flathead and Phillips screwdrivers, wire stripper, needle-nose pliers. Label all low-voltage wires before disconnecting. Confirm primary tap matches your supply voltage before energizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock units ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for the \u003cstrong\u003eCarrier PH2PNB024000AC\u003c\/strong\u003e packaged heat pump unit. Also fits select Carrier air conditioners, furnaces, and other packaged RTU models requiring a 75VA, 24V secondary control transformer with foot-mount configuration. Always verify your unit's supply voltage matches the correct primary tap before installation. Have questions about fitment? Our HVAC parts specialists verify compatibility before you order — in stock and ready to ship today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641459921267,"sku":"CARRIE-PH2PNB024000AC-TRANSFORMER-HT01BD242","price":103.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641459954035,"sku":"CARRIE-PH2PNB024000AC-TRANSFORMER-HT01BD242-GEN","price":91.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BD242_88045677-0f66-4499-930b-22c5a882f755.jpg?v=1775026239","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph2pnb024000ac-transformer-h3025m","provider":"National HVAC Parts","version":"1.0","type":"link"}