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and AR series
Technicians should check the motor nameplate for the specific MFD/uF rating to ensure proper torque and motor life
providing a reliable airflow of 80 CFM
Industrial Construction: High-grade cast iron provides superior heat dissipation and resists groove wear
What symptoms indicate a rebuild is necessary
Lennox 12W49 Pressure Switch 320788-703 and AR seriesThe Lennox 12W49 Pressure Switch (Model R20558702) is a critical OEM safety component engineered for precise combustion air monitoring in Lennox gas furnaces. This SPST pressure switch is factory calibrated to actuate at 1. 35" W. C., ensuring the inducer motor generates sufficient draft for safe venting before the ignition sequence begins. Designed for professional grade reliability, it features a standardized 1 4" barb connection for secure
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