The Carrier LH33WZ518 Flame Sensor is a critical OEM replacement part designed for precise flame rectification in high-efficiency gas furnaces

the K1-3 is compatible with R-410A and other common refrigerants

preventing pressure loss

Does this seal cap function as a vent limiter

Cleveland Controls AFS-460-121 Switch The Carrier LH33WZ518 Flame SensorThe 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