Lennox 51M87 Pressure Switch THPU32HP7Y ensure proper wrap-around heat sinking

ensure proper wrap-around heat sinking on the 7/8" ODF connections to protect the internal power assembly and diaphragm during brazing

Drop-in Compatibility: Specifically engineered to replace legacy part number S1-331-02936-001 without requiring extensive field modifications

This motor features a 5/16-inch diameter shaft that extends 2

What are the set points for S1-024-35267-000

25-inch expanded discharge port reduces backpressure during full-flow relief events

Lennox 51M87 Pressure Switch THPU32HP7Y ensure proper wrap-around heat sinkingThe Lennox 51M87 is a precision engineered furnace pressure switch designed for critical venting safety within Lennox HVAC systems. This 1. 6" WC SPDT N. O. pressure switch functions as a fail safe, ensuring the inducer motor is generating adequate static pressure before allowing the ignition sequence to proceed. The 51M8701 is the identical direct replacement, maintaining the exact factory set point of 1. 60 inches of water column. As a Single Pole