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supporting up to 4 stages of heating and 2 stages of cooling
maintaining combustion safety and thermal efficiency depends on utilizing exact-match components like the 073336504 to prevent pressure drops and ensure proper BTU input throughout the heating cycle
Rugged Construction: Durable brass body with a Nema 4X watertight enclosure for indoor and outdoor use
essential for low-pressure gas applications
Key Benefits for HVACR Contractors OEM Compatibility: Specifically engineered for Alco T-Series take-apart valves to ensure a leak-proof seal and precise superheat regulation
Lennox Y4152 HSI Kit Refrigerant supporting up to 4 stagesThe 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