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the 511-330-197 pilot assembly includes the pilot burner
the 176F1177 ensures active cooling for D-frame and larger drives
you ensure that the internal raceway tolerances meet the original equipment manufacturer’s specifications for heat dissipation and radial load capacity
Using it for liquid service will result in improper lift and potential system damage
Trane VAL11539 TXV 321042-401 the 511-330-197 pilot assembly includesWhen 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