Lennox Y4152 HSI Kit Freon Short Circuit Protection: Built-in safeguards

Short Circuit Protection: Built-in safeguards protect internal components from operator wiring errors during commissioning

This is an OEM original component designed specifically for Johnson Controls A-4000-120 indicators

Does this valve require a minimum pressure differential to operate

code-compliant install

Key Benefits Universal Compatibility: Directly replaces multiple Honeywell and Resideo legacy models

Lennox Y4152 HSI Kit Freon Short Circuit Protection: Built-in safeguardsThe Lennox Y4152 HSI Kit is a field proven integrated furnace control board upgrade designed for technical precision in two stage heating systems. Specifically engineered to manage Lennox variable speed (ECM) blower motors, this kit provides a direct drop in replacement for legacy White Rodgers and OEM units. As a veteran grade HVAC replacement part, the Y4152which is functionally identical to the Y415201standardizes high efficiency performance by