Lennox 63W40 Pressure Switch L99H008 2-speed induced draft motor engineered

2-speed induced draft motor engineered specifically for technical compatibility with DBYY series air conditioners and various heat pump models

Durable Copper Probe: The 5/16" bendable copper probe allows for custom serpentine routing to capture a true average temperature

from full load down to pilot flow applications

eliminating the calibration drift often seen with generic sensors

Lennox 63W40 Pressure Switch L99H008 2-speed induced draft motor engineeredThe Lennox 63W40 Pressure Switch is a critical OEM replacement component for two stage furnaces and heat pumps, including the G60DF and G60UH series. Designed to ensure safe combustion cycles, this dual pressure switch features factory calibrated set points of 0. 20" WC for low stage operation and 0. 40" WC for high stage performance. As a veteran grade HVAC pressure switch, it monitors the negative pressure generated by the inducer motor, providing