Designed for use with high-pressure refrigerants including R-410A

ensuring responsive shifting between heating and cooling cycles

reducing installation errors

making the 10J42 an essential part of the installation

Smith 100208395 Gas Pressure Switch

Carrier HK50AA054 Board 326058-757 Designed for use with high-pressureThe Carrier HK50AA054 Board is a precision engineered integrated furnace control designed for heavy duty service in specific residential furnaces, air handlers, and commercial rooftop units. As a direct fit HVAC circuit board replacement, it functions as the central processor for the unit, managing critical sequences of operation including inducer motor startup, ignition timing, and blower fan speeds. This OEM Carrier control board ensures factory