OEM Carrier Power Transformer 460V Primary / 230V Secondary 1564VA for Model PY3GEAA42090NA

This is the genuine OEM factory-replacement power transformer for the Carrier PY3GEAA42090NA rooftop packaged unit. Part number HT01BC701 is a heavy-duty step-down transformer that converts the unit's 460V primary supply voltage down to a 230V secondary output, delivering 1564VA of capacity to power internal components and control circuits. When this transformer fails, the result is typically a complete loss of system operation — no response from the thermostat, no contactor engagement, and no blower or compressor activity.

• Specs: 460V Primary | 230V Secondary | 1564VA Rating | Factory-matched Carrier OEM replacement | Cross-reference: BE33426001
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part manufactured to exact voltage and VA tolerances. Non-OEM substitutes risk under-rated VA capacity, voltage instability, and premature failure under commercial RTU load demands.
• Install Difficulty: 4/5 — This is a high-voltage commercial transformer. Requires full system lockout/tagout (LOTO) before servicing. Tools needed: multimeter, insulated screwdrivers, wire crimpers, torque screwdriver. Recommended for qualified commercial HVAC technicians only.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse on orders placed before 3 PM local time.

Compatibility: Designed as the direct OEM replacement for the Carrier PY3GEAA42090NA packaged rooftop unit. Verify your unit's primary supply voltage (460V) and VA requirements against your equipment data plate prior to ordering. Also cross-references as BE33426001. Our parts specialists are available to confirm fitment before you order — no guesswork required.