OEM Carrier Control Transformer 75VA 208/240/480V to 24V for Model PH1PPB036000ABAA

This is the factory OEM replacement control transformer (part number HT01BD242) for the Carrier PH1PPB036000ABAA packaged heat pump unit. The transformer steps down line voltage (208/240/480V primary) to the 24V AC signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, reversing valve, and control board. At a robust 75VA rating, it handles the full control load of multi-stage packaged equipment without overheating. When this transformer fails, the result is total system non-response: the thermostat goes dark, no contactors pull in, and no staging occurs — essentially the unit is completely dead despite line voltage being present at the unit.

• Specs: 75VA rating | Primary: 208/240/480V (50/60 Hz) | Secondary: 24VAC | Foot-mount configuration | OEM part number HT01BD242
• OEM vs Generic: This is the exact factory-specified transformer. OEM units are wound to precise VA tolerances, protecting downstream controls. Generic transformers often run hot under full control load, causing nuisance trips or premature secondary winding failure.
• Install difficulty: 3/5 — Requires disconnecting line voltage at the disconnect box before accessing the transformer. Tools needed: multimeter (confirm 0V before touching), #2 Phillips screwdriver, wire nuts or spade terminals. Always verify 24VAC output after installation before restoring low-voltage wiring to the board.
• Warranty: 1-year OEM factory warranty. In-stock units ship same business day from our warehouse when ordered by cutoff time.

Compatibility: Engineered for the Carrier PH1PPB036000ABAA packaged heat pump unit. Cross-compatible with Bryant and ICP family units sharing the HT01BD242 specification — always verify primary voltage (208/240/480V) and 75VA rating against your unit's data plate before ordering. Our parts specialists are available to confirm fitment prior to purchase — reach out before you order.