{"product_id":"carrier-ph2pnb024000aa-transformer-h3025m","title":"OEM Carrier Transformer 75VA 208\/240\/480V–24V for PH2PNB024000AA","description":"\u003ch1\u003eOEM Carrier Transformer 75VA 208\/240\/480V to 24VAC for Model PH2PNB024000AA\u003c\/h1\u003e\u003cp\u003eThe \u003cstrong\u003eCarrier HT01BD242\u003c\/strong\u003e is the factory-specified OEM control transformer for the \u003cstrong\u003ePH2PNB024000AA\u003c\/strong\u003e packaged heat pump unit. Its job is critical: it steps high-voltage line power (208, 240, or 480V primary) down to the 24VAC signal voltage that powers every low-voltage control circuit in your system — the thermostat, contactor coil, gas valve, and control board alike. When this transformer fails, the entire control circuit goes dead. Symptoms include a completely unresponsive system, a tripped fuse on the control board, or a unit that won't respond to any thermostat command.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 75VA power rating | Primary: 208\/240\/480V multi-tap | Secondary: 24VAC | Frequency: 50\/60Hz | Foot-mount configuration | OEM part number HT01BD242\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers from Carrier are wound to exact VA tolerances, ensuring the control circuit never browns out under peak load. Generic transformers frequently run undersized VA ratings, causing nuisance resets and premature contactor coil burnout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Line-voltage wiring is involved. Always disconnect power at the breaker and confirm zero voltage with a multimeter before proceeding. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade connectors. Photograph all wiring before removal. If unfamiliar with line-voltage work, consult a licensed HVAC technician.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units ship same business day from our warehouse when ordered by cutoff time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for Carrier model \u003cstrong\u003ePH2PNB024000AA\u003c\/strong\u003e packaged heat pump. Also cross-references to a wide range of Carrier, Bryant, Payne, Tempstar, Heil, and ICP equipment using the same 75VA multi-tap transformer specification — always verify primary voltage tap and VA rating on your unit's data plate before ordering. Questions about fitment? Our HVAC parts specialists verify compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641461068147,"sku":"CARRIE-PH2PNB024000AA-TRANSFORMER-HT01BD242","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641461100915,"sku":"CARRIE-PH2PNB024000AA-TRANSFORMER-HT01BD242-GEN","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-multitap-HT01BD242.jpg?v=1782943247","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph2pnb024000aa-transformer-h3025m","provider":"National HVAC Parts","version":"1.0","type":"link"}