Carrier 30RB660062 Board Kit 321142-301 featuring a 30-second minimum pre-purge

featuring a 30-second minimum pre-purge to clear the combustion chamber before the 4-second ignition trial

making it a reliable component for HVACR contractors managing chiller loops

this unit is a direct replacement that minimizes downtime and maintains the factory-established efficiency of compatible Reznor heaters

the MP-454 includes a factory-installed SPDT auxiliary switch to allow for auxiliary circuit control or position feedback

Carrier 30RB660062 Board Kit 321142-301 featuring a 30-second minimum pre-purgeThe Carrier 30RB660062 Board Kit is a critical Electronic Expansion Valve (EXV) control module designed for precise refrigerant metering in Carrier AquaForce and 30RB air cooled chillers. As a primary EXVB1,2 interface, this factory authorized kit manages the diagnostic and operational signals between the main system processor and the expansion valves, ensuring tight superheat control and optimal evaporator efficiency. For technicians servicing