{"product_id":"carrier-py4gewb42090aa-transformer-h2uxan","title":"OEM Carrier Transformer 460V Pri 230V Sec 1564VA — PY4GEWB42090AA","description":"\u003ch1\u003eOEM Carrier Transformer 460V Primary \/ 230V Secondary 1564VA for Model PY4GEWB42090AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-replacement transformer (part number \u003cstrong\u003eHT01BC701\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PY4GEWB42090AA\u003c\/strong\u003e packaged rooftop unit. This heavy-duty step-down transformer converts 460V primary power to a 230V secondary output at a robust 1564VA rating, supplying reliable power to the unit's internal electrical components and subsystems. When this transformer fails, the entire unit may go completely unresponsive — no fan, no cooling, no heating — because the downstream control and power circuits lose their operating voltage. Diagnosing a failed transformer is typically confirmed by measuring the secondary output with a multimeter while the primary is energized; a reading near 0V on the secondary confirms failure.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 460V Primary | 230V Secondary | 1564VA Rating | OEM Part # HT01BC701 | Cross-reference: BE33426001 \/ RC6800182\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part manufactured to exact OEM voltage and VA tolerances. Off-brand substitutes risk under-rated VA capacity, leading to overheating, nuisance tripping, or premature failure of downstream components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 4\/5\u003c\/strong\u003e — This is a high-voltage commercial transformer (460V primary). Work must be performed by a licensed HVAC\/R technician. Disconnect and lock out all power before beginning. Tools needed: multimeter, insulated screwdrivers, wire strippers, and appropriate PPE. Always photograph and label all wiring connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the direct OEM replacement for the \u003cstrong\u003eCarrier PY4GEWB42090AA\u003c\/strong\u003e packaged rooftop unit. Also compatible with select Carrier, Bryant, and Payne RTU, heat pump, and central air conditioner models requiring a 460V\/230V 1564VA step-down transformer — verify against your unit's data plate and wiring diagram before ordering. Have questions about fitment? Our HVAC parts specialists will confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640334438771,"sku":"CARRIE-PY4GEWB42090AA-TRANSFORMER-HT01BC701","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640334471539,"sku":"CARRIE-PY4GEWB42090AA-TRANSFORMER-HT01BC701-GEN","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01BC701_ad771ba7-bd7a-4e8e-bf7a-1e2ecef613e0.jpg?v=1782942736","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py4gewb42090aa-transformer-h2uxan","provider":"National HVAC Parts","version":"1.0","type":"link"}