Johnson Controls AFS-222 Sensing Switch check for continuity across the

check for continuity across the terminals

Type J flanges are specifically designed for EPDM and Neoprene sleeves and should not be used with Hytrel inserts

Engineered as a universal replacement relay

While a standard element wrench can be used

Common field issues include a blocked flue

Johnson Controls AFS-222 Sensing Switch check for continuity across theThe Johnson Controls AFS 222 Sensing Switch is the direct performance grade update for legacy A AFS222 and L 200 RH3 models. Engineered specifically for high demand HVACR and energy management applications, this differential air pressure switch features a versatile set point range of 0. 05" ? 0. 02" to 12. 0" w. c., making it ideal for monitoring positive, negative, or differential pressure across coils and filters. The unit is housed in a rugged zinc