Lennox 38M64 Pressure Switch 320788-702 maintaining alignment and calibration over

maintaining alignment and calibration over extended duty cycles without the frequent need for field adjustments

Designed with a rugged brass body and durable EPDM diaphragm

while the TWN75 rating specifies suitability for wet or damp locations at a maximum of 75°C

Utilizing genuine Carrier OEM parts like this 77 amp 3 pole breaker ensures exact mechanical and electrical fitment

Lennox 38M64 Pressure Switch 320788-702 maintaining alignment and calibration overThe Lennox 38M64 Pressure Switch is a critical safety component designed for precise draft pressure monitoring in residential and commercial HVAC systems. This OEM Lennox furnace part is factory calibrated to a set point of 1. 95" WC (Water Column), providing the exact differential pressure required to verify inducer motor operation and flue gas venting. Engineered as a direct replacement for Lennox 38M6401, this component ensures your furnace or air