{"product_id":"carrier-ph12na024000adaa-transformer-h4oyjb","title":"OEM Carrier Transformer 60VA 115\/208\/230V–24V for PH12NA024000ADAA","description":"\u003ch1\u003eOEM Carrier 60VA Control Transformer HT01AW229 for Model PH12NA024000ADAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-authorized replacement control transformer for the \u003cstrong\u003eCarrier PH12NA024000ADAA\u003c\/strong\u003e packaged heat pump unit. The transformer steps down line voltage (115, 208, or 230V primary) to the 24V AC signal that powers your thermostat, contactor coil, and all low-voltage control circuits. When this component fails, the entire control circuit loses power — the result is a completely unresponsive system: no thermostat display, no contactor pull-in, and no heating or cooling operation whatsoever.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60 VA rating | Primary voltage: 115 \/ 208 \/ 230 VAC | Secondary voltage: 24 VAC | Foot-mounted design | OEM part number HT01AW229 (also supersedes HT01AW229A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact factory VA and impedance tolerances. Undersized or off-spec generic transformers can cause nuisance tripping, brownouts on the 24V circuit, or premature board damage — especially in multi-stage systems drawing higher control-circuit loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power to the unit before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, wire nuts. Photograph all wiring connections before disconnecting the old transformer. Verify the primary voltage tap matches your supply voltage (115V, 208V, or 230V) before energizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for \u003cstrong\u003eCarrier PH12NA024000ADAA\u003c\/strong\u003e packaged heat pump units. Always verify the existing transformer's VA rating and primary voltage configuration on your unit's data plate before ordering. Our technical team is available to confirm fitment prior to purchase — order with confidence and get your system back online today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641967432051,"sku":"CARRIE-PH12NA024000ADAA-TRANSFORMER-HT01AW229","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641967464819,"sku":"CARRIE-PH12NA024000ADAA-TRANSFORMER-HT01AW229-GEN","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01AW229_a6e0fe8b-151d-41de-a593-a42e0f73d32d.jpg?v=1782943133","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph12na024000adaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}