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The Lennox 89M57 is a critical OEM replacement gas valve designed for single-stage heating legacy systems
The VG7241ST+823C00 is rated for hot water
Enhanced Flow Control: The equal percentage plug design provides superior part-load performance and prevents hunting in hydronic loops
ensuring smooth reversals even at low pressure differentials
crucial for consistent performance in various HVAC system components
Heil Quaker ICP 1184605 Thermistor Assembly 321894-709 The Lennox 89M57 is aThe Heil Quaker ICP 1184605 Thermistor Assembly is a critical OEM replacement part designed for precision temperature monitoring in high efficiency HVAC systems. This NTC thermistor assembly features a 45 inch lead length, providing ample reach for secure integration into its designated sensing location within the evaporator coil or air stream. As a veteran technician knows, accurate resistance to temperature feedback is vital for the control board to