Intermatic K4221C Control or a malfunctioning pressure switch

or a malfunctioning pressure switch that causes excessive cycling

technicians can effectively neutralize water hammer effects and oscillations that otherwise lead to mechanical fatigue and premature instrument failure

If the seat is removable

Broad Cross-Reference: Directly replaces popular 20VA models from Jard

Intermatic K4221C Control or a malfunctioning pressure switchProfessional grade Intermatic K4221C Control units are the industry standard for reliable dusk to dawn lighting control. Built for the rigors of the field, this thermal photocontrol features a robust mechanical bimetal switch and a precision cadmium sulfide photocell to ensure consistent performance across extreme temperature ranges from 40? F to 158? F. The stem and swivel mount design, featuring a 1 2" 14 NPSM threaded stem, allows for flexible