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NEMA 4X Watertight Enclosure: Engineered for protection in harsh
including 2A6H and 2TTZ units
High-Accuracy Regulation: Integrated regulator maintains 3
Key Benefits: OEM Precision: Guaranteed factory-authorized part compatibility with Carrier 48HCDA
this board manages the reversing valve solenoid and outdoor fan motor operations during the defrost sequence
Lochinvar & A.O. Smith 100288663 Insulation 320788-704 NEMA 4X Watertight Enclosure: EngineeredThe Lochinvar & A. O. Smith 100288663 Burner Plate Insulation Door is a critical thermal barrier designed for high efficiency gas fired boilers and water heaters. Engineered from high density ceramic fiber insulation, this OEM component sits behind the burner mounting plate to contain combustion heat within the chamber. By preventing radiant heat transfer to the exterior cabinet, the 100288663 insulation maintains peak thermal efficiency and protects