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such as poor fit or electrical arcing against the burner housing
Using a multimeter set to the Ohms scale
airtight seal over the sensor face
the blower wheel hub includes the necessary hardware to lock the wheel to the motor's flat-milled shaft
Cleveland Controls AFS-460-121 Switch such as poor fit orThe Cleveland Controls AFS 460 121 is a professional grade adjustable air pressure sensing switch engineered for high accuracy performance in HVAC and energy management systems. Designed to monitor positive, negative, or differential air pressure, this proving switch features a versatile setpoint range of 0. 4" w. c. to 12. 0" w. c., making it a reliable solution for verifying fan operation or filter status. As a safety critical component, it utilizes
