This control is built with a rugged NEMA 1 steel enclosure and utilizes a 1/4" male flare pressure connection for seamless integration with standard refrigerant hoses or SEC99 UltraCap capillary tubes

Clean Burning: Contributes to stable flame signals and prevents soot buildup on the heat exchanger

Installation is straightforward for any veteran tech because the Williams 6913 maintains the exact manifold alignment and mounting footprints of the factory-installed unit

Always verify the part number on your existing harness or cross-reference your furnace model with the manufacturer specs

maintaining the integrity of the heat exchanger through consistent flame distribution

Trane VAL11539 TXV R-407C This control is built withWhen you're dealing with a 4 ton system pull down or a standard evaporator coil replacement, the Trane VAL11539 Thermal Expansion Valve is the critical metering device required to maintain stable superheat. This genuine Trane OEM replacement part is specifically calibrated for R 410A refrigerant applications, ensuring the evaporator receives the precise mass flow of refrigerant needed to match the current heat load. Unlike fixed orifice devices, the