Check your pitch diameter

reducing callbacks

covering everything from cryogenic storage to high-temp exhaust

Integrated with internal pressure-sensitive interrupters

Johnson Controls AFS-222 Sensing Switch Check your pitch diameterThe 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