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The CARRIER p201-3401 is a control transformer with wire leads designed for residential and light commercial HVAC applications. It steps down incoming line voltage of 120, 208, or 240 VAC to a 24 VAC output, delivering 40 volt-amps (VA) of power to support low-voltage control circuits. This includes thermostats, contactors, relay coils, and control boards found throughout heat pump and air conditioning systems. The transformer operates across both 50 and 60 Hz power supplies, making it suitable for a wide range of installations. Wire leads are included for direct integration into existing wiring harnesses.
This transformer is used in residential and light commercial HVAC systems where a reliable 24 VAC control circuit is required. It is a direct OEM replacement part intended for heat pump systems and related HVAC equipment. Compatible models listed in the input include LCA100S-01, LGA088S-01, and LGA088H-02. It is appropriate for service, maintenance, and repair work performed by licensed HVAC technicians.
Designed as a genuine OEM replacement transformer for Carrier HVAC equipment, including models LCA100S-01, LGA088S-01, and LGA088H-02.
Installation should be performed by a licensed HVAC technician in accordance with applicable local codes and the NEC. Disconnect and lock out all power to the unit before removing the existing transformer or making any wiring connections. Verify that the input voltage tap matches the supply voltage at the unit before energizing. Do not energize the transformer without confirming all low-voltage control wiring is properly terminated and insulated.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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