this gray-wire thermistor is the specific component required for water-side freeze protection

The York S1-4101400 Motor is a high-performance direct drive blower motor engineered for consistent airflow in residential and light commercial air handlers and furnaces

engineered for precise fluid control in closed-loop hydronic systems

making it ideal for high-torque startups where initial inertia must be overcome quickly to prevent compressor humming or thermal overload trips

This motor is a direct drop-in replacement for TM9Y and TM9X series gas furnaces

Lennox 11M65 Flame Sensor Lead 318172-701 this gray-wire thermistor is theThe Lennox 11M65 Flame Sensor Lead is a critical 55 inch 18 AWG furnace wire harness designed to maintain a reliable flame rectification signal. This OEM Lennox replacement part, also identified as LB 95959W1, is essential for high efficiency gas furnaces where precise millivolt signal transmission is required to prevent furnace lockout. As a veteran grade HVAC flame sensor wire, it features high temperature insulation specifically engineered to