Sterling HVAC 11J28R06881 Control/Ignition Board 30067439-890 Field calibration is possible via

Field calibration is possible via the adjustment screw on the stem

This factory-assembled unit is ready for immediate deployment in variable or constant flow bypass loops

Standardized Connections: 1/2" NPT pipe threads allow for seamless integration with existing HVAC pipe fittings

this 3/8-inch NPT valve ensures a reliable seal and efficient flow management for air

you can expand your sequencing control to accommodate large-scale boiler plants or complex VAV applications

Sterling HVAC 11J28R06881 Control/Ignition Board 30067439-890 Field calibration is possible viaThe 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