The part number 371-04479-001 is a York IGBT VSD Power Assembly Kit, an OEM replacement component used in York/Johnson Controls HVAC systems. It integrates insulated-gate bipolar transistors (IGBTs) with variable speed drive (VSD) electronics to regulate motor speed and torque, improving energy efficiency and system performance.

Specification & Description of 371-04479-001

• Manufacturer/Brand: York (Johnson Controls)
• Part Type: IGBT VSD Power Assembly Kit
• Function:
  • Controls motor speed and torque by adjusting voltage and frequency.
  • Provides smooth operation and reduces mechanical stress on HVAC motors.
  • Enhances energy efficiency and system reliability.
• Components Included:
  • IGBT modules (power transistors for switching).
  • VSD electronics (control circuitry for motor regulation).
  • Gate drive board for precise IGBT control.
• Dimensions: Approx. 350 mm x 307 mm x 150 mm
• Weight: 0.36 kg
• Application:
  • Used in York chillers and large HVAC systems requiring variable motor control.
  • Critical for systems where load demand fluctuates and efficiency is key.