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If the resistance is zero (shorted) or infinite (open)
even in complex Daikin-McQuay HVAC air handler configurations
the "C" suffix typically denotes commercial packaging
Common Questions What are the symptoms of a failing 100108592 gas valve
Cleveland Controls AFS-298-391 Sensing Switch R-22 If the resistance is zeroThe Cleveland Controls AFS 298 391 is a high performance air pressure sensing switch designed for precision in commercial HVAC and energy management systems. Engineered as a general purpose differential pressure switch, it monitors positive, negative, or vacuum air pressure with a field adjustable set point range from 0. 05" w. c. to 12. 0" w. c. This unit is factory calibrated to change contacts on increasing pressure at 0. 30" w. c. ( 0. 02" w. c.),