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streamlining maintenance workflows for building managers and contractors
Installing a switch with a different water column rating can bypass safety protocols or cause the furnace to short cycle
it is designed for use in both direct-acting (air-to-close) and reverse-acting (air-to-open) configurations where the 30041087-107 part number is specified in the technical manual
Measuring 55
MARS 33217 Sequencer Els PW 17895 streamlining maintenance workflows for buildingThe MARS 33217 is a heavy duty 240V heat sequencer engineered for precise multi stage control in electric furnaces, heat pumps, and air handlers. Designed for veteran contractors, this thermal time delay relay features a DPST (Double Pole Single Throw) or SPDT (Single Pole Double Throw) switch action, allowing for the staggered activation of heating elements to prevent localized circuit overloads and nuisance tripping. Built with a solid state PTC
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