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The MCC POWERS 390 067 is a mixing valve replacement kit designed to restore proper function to hydronic mixing valve assemblies used in heating and plumbing systems. Mixing valves regulate the blending of hot and cold water to maintain a consistent outlet temperature, protecting occupants from scalding and maintaining system efficiency. This replacement kit provides the components needed to service an existing mixing valve without replacing the entire valve body. It is typically installed by licensed plumbers or HVAC technicians during routine maintenance or corrective service calls.
This kit is suited for hydronic heating and domestic hot water systems where mixing valve components have worn or failed. It is used in both residential and light commercial applications. Replacing worn internal components with a factory kit restores valve accuracy and helps the system meet temperature control requirements. Installers working on boiler systems, radiant heating loops, or domestic hot water distribution lines will find this kit applicable to standard service procedures.
Designed as an OEM-style replacement kit for MCC POWERS mixing valve assemblies. Confirm valve model and series against the kit part number 390 067 before installation.
Installation should be performed by a licensed plumber or qualified HVAC technician. Shut off the water supply and relieve system pressure before disassembling the mixing valve. Follow applicable IPC and local plumbing code requirements when servicing domestic hot water or hydronic systems. Do not reuse worn seals or components from the original assembly when a full kit replacement is indicated.
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