it is recommended to install it with the solenoid coil in a vertical

Streamlined Integration: Features 1/4" barbed ports and a compact footprint for fast differential pressure switch replacement in tight cabinets

By utilizing AC current on the probes to minimize electrolysis

000 and 138

Carrier HM56SERIES308 Ignition Control 321042-401 it is recommended to installThe Carrier HM56SERIES308 Direct Spark Ignition Control (DSI) is a critical integrated furnace control designed for precise HVAC combustion management. Functioning as a direct replacement for legacy Carrier and Bryant ignition modules, this DSI control board manages the induction motor, pressure switch monitoring, and electrode spark gap timing for reliable burner ignition. It features a sophisticated microprocessor that executes a pre purge cycle to