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Running this on a 200V+ circuit will cause immediate component failure
ensure proper wrap-around heat sinking on the 7/8" ODF connections to protect the internal power assembly and diaphragm during brazing
if the sensor is "open" or "shorted" while within its normal operating range
Drop-in Compatibility: Specifically engineered to replace legacy part number S1-331-02936-001 without requiring extensive field modifications
Professional Grade Durability: Specifically built for the high-cycle environments of Lennox G24 and G26 furnace series vestibule panels
Lennox 51M87 Pressure Switch THPU32HP7Y Running this on a 200V+The 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