Advanced Distributor Products 176799984 Piston Orifice 318423-701 replacing a failed interface with

replacing a failed interface with this OEM HVAC control board prevents erratic system behavior and maintains the factory-defined operational parameters required for long-term unit integrity

the Rheem-Ruud 42-21593-02 Sequencing Relay functions as a critical OEM control component

including TAM7 and 4TEE air handler series

System Protection: Acts as a primary safety to prevent air and moisture from being drawn into the system during a leak

ensuring compatibility with specific York air handlers and cased coils without the need for extensive field modifications

Advanced Distributor Products 176799984 Piston Orifice 318423-701 replacing a failed interface withThe Advanced Distributor Products 176799984 Piston Orifice is a high precision HVAC expansion device engineered to regulate refrigerant flow within your cooling system. Specifically designed as a #84 R22 piston orifice, this critical component ensures the optimal pressure drop required for efficient heat exchange. As a direct replacement for 100000045, this orifice provides a seamless fit for compatible ADP and Lennox evaporator coils, restoring