OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH12NA060000ACAA

This is the factory OEM control transformer for the Carrier PH12NA060000ACAA packaged heat pump unit. The transformer steps down line voltage (115, 208, or 230V primary) to a safe 24V AC secondary signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, and all safety safeties. When this transformer fails, the entire control system goes dark: the thermostat becomes unresponsive, the unit will not start, and no fault codes will display on the board. A shorted transformer may also trip the unit's low-voltage fuse.

• Specs: 60 VA power rating | 115/208/230 VAC primary (multi-tap) | 24 VAC secondary | 50/60 Hz | Foot-mount configuration | OEM Part Number: HT01AW229
• OEM vs Generic: This is a genuine Factory Authorized Parts (FAP) OEM transformer built to Carrier's exact VA rating and insulation class. Generic alternatives often carry lower insulation ratings and tighter-wound cores that run hot under continuous load — shortening board and contactor life downstream.
• Install difficulty: 2/5 — Shut off ALL power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Label all low-voltage wires before disconnecting. Confirm primary tap is wired to match your actual supply voltage.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for the Carrier PH12NA060000ACAA packaged heat pump. Also cross-references Bryant and Payne units sharing the same 60VA, 115/208/230V-to-24V control transformer specification. Always verify supply voltage and VA rating on your unit's data plate before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy — order now and ship today.