The FC charge signifies a medium temperature liquid charge

or a malfunctioning blower motor that prevents adequate heat dissipation

Proper installation ensures optimized sequential control and prevents the overshoot often seen in aged pneumatic hardware

Key Benefits for HVAC Professionals Precision Thermal Protection: Calibrated to trip at exactly 248°F to prevent catastrophic component failure

Cleveland Control AFS-181-43 Switch The FC charge signifies aThe Cleveland Controls AFS 181 43 is a professional grade air flow switch engineered for high accuracy pressure sensing in HVAC, industrial air handling, and process control applications. Functioning as a Single Pole Double Throw (SPDT switch), this unit is designed to monitor positive, negative, or differential air pressure. It features a field adjustable setpoint range of 0. 05" . 02 to 2. 0" w. c., allowing for precise calibration to meet specific