OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH12NA02400GACAA

This is the factory-authorized OEM control transformer (Part #HT01AW229) for the Carrier PH12NA02400GACAA packaged heat pump unit. The transformer steps down high-voltage line power — 115V, 208V, or 230V primary — to the 24V AC signal that powers the entire control circuit: thermostat, contactor coil, reversing valve, and all safety switches. When this transformer fails, the result is total system shutdown — no response from the thermostat, no contactor pull-in, and no operation in any mode. A failed transformer is often mistaken for a bad control board; always verify 24V output at the secondary before condemning any downstream component.

• Specs: 60 VA power rating | 115/208/230V AC primary (multi-tap) | 24V AC secondary | 50/60 Hz | Foot-mount configuration | OEM Part #HT01AW229
• OEM vs Generic: This is a genuine Factory Authorized Parts (FAP) unit built to exact Carrier specifications. Generic transformers are frequently under-rated for VA load, causing overheating under full control circuit demand and premature failure — particularly on packaged units with multiple control loads.
• Install Difficulty: 2/5 — Shut off all power at the disconnect and breaker before proceeding. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade terminals. Verify primary tap wiring matches your supply voltage (115V, 208V, or 230V) before energizing. Confirm 24V output with a multimeter after installation.
• Warranty: 1-year OEM factory warranty on parts and workmanship. In-stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PH12NA02400GACAA packaged heat pump. Also cross-references as HT01AW229A. Verify your unit's data plate voltage requirements before selecting primary tap wiring. Our HVAC parts specialists are available to confirm fitment prior to your order — contact us before you buy if you have any questions.