Lennox 17F56 Cold Header Box Refrigerant provided the frame size (48)

provided the frame size (48)

and MSZ-GE18NA indoor air handlers

For 70 CFM fans

preventing a clean signal to the board

it is primarily designed as a Temperature and Pressure Relief Valve for hot water supply systems

Lennox 17F56 Cold Header Box Refrigerant provided the frame size (48)The Lennox 17F56 Cold Header Box is a critical OEM component designed for high efficiency refrigerant distribution within Lennox evaporator and condenser coil assemblies. As a veteran technician knows, maintaining balanced thermal loading across multi circuit coils is essential for preventing localized freezing and ensuring the compressor operates within its designed superheat range. This HVAC cold header box serves as the primary manifold, routing