{"product_id":"carrier-py3pna060115nb-transformer-h30291","title":"OEM Carrier Control Transformer 40VA 208\/240V–24V for PY3PNA060115NB","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/240V to 24V for Model PY3PNA060115NB\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part #HT01BD209) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3PNA060115NB\u003c\/strong\u003e packaged unit. The transformer steps down 208\/240V line voltage to the 24V signal used by your thermostat, control board, contactor coil, and all low-voltage safety circuits. When this transformer fails, the entire control circuit goes dead — your thermostat goes blank, the system won't respond to any calls for heating or cooling, and you may blow a fuse repeatedly. Replacing it with the correct OEM unit restores the factory-spec voltage supply your system depends on.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 208\/240V primary | 24V secondary | 50\/60Hz | Class 2 control transformer | Direct replacement for HT01BD207, HT01CN232, and 9076-00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and potted to Carrier's exact VA and voltage tolerances. Undersized or off-spec generics can overheat under load, trip thermal cutoffs prematurely, and damage downstream control boards — a far more expensive repair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Note wire colors and terminal markings before disconnecting the old unit. Verify 24V output with a multimeter before restoring full system power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty included. Ships same business day from our warehouse — order by 3PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the Carrier \u003cstrong\u003ePY3PNA060115NB\u003c\/strong\u003e packaged gas\/electric unit. Confirm your unit's data plate lists 208\/240V single-phase power supply before ordering. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you buy — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640373563763,"sku":"CARRIE-PY3PNA060115NB-TRANSFORMER-HT01BD209","price":50.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640373596531,"sku":"CARRIE-PY3PNA060115NB-TRANSFORMER-HT01BD209-GEN","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BD209_07b14666-a275-4443-be6b-cad6b732fdfd.jpg?v=1775025717","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3pna060115nb-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}