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When performing a furnace repair or preventive maintenance
replacement is required to protect the motors
including the high-capacity KGA300S4-1 and various LGH/LGC rooftop unit series
making it the professional choice for systems utilizing polyolester (POE) lubricants
effectively cutting the burner circuit if the heat exchanger exceeds safe operating temperatures
Cleveland Control AFS-227-121 Air Flow Switch Els PW 17895 When performing a furnace repairAs an HVAC technician, you know that consistent pressure monitoring is the backbone of safe furnace and air handler operation. The Cleveland Controls AFS 227 121 is a professional grade air flow switch and differential pressure sensing switch designed to tackle complex HVACR and energy management applications. This SPDT air pressure switch features a versatile field adjustable set point range from . 05" . 02" to 12. 0" w. c., allowing for precision