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This single-pole single-throw (SPST) switch ensures precise combustion by verifying proper static pressure before allowing the ignition sequence to proceed
Standardized Connections: 1/2" NPT pipe threads allow for seamless integration with existing HVAC pipe fittings
This OEM pressure sensing switch is compatible with various sample line tubing
Does this include the actuator or just the internals
This factory-assembled unit is ready for immediate deployment in variable or constant flow bypass loops
Sterling HVAC 11J28R06881 Control/Ignition Board 30067439-890 This single-pole single-throw (SPST) switchThe Sterling HVAC 11J28R06881 Control Ignition Board is the current OEM replacement engineered for Direct Spark Ignition (DSI) operation in Sterling and Beacon Morris gas fired unit heaters. Functionally identical to the legacy J28R06881, this updated controller is optimized specifically for heating only applications, having eliminated the unnecessary cooling relay found on older universal boards to streamline HVAC system reliability. Designed as a
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