The Rinnai Isolation Valve Kit, part number 107000284, is a service valve assembly designed for use with compatible Rinnai tankless water heaters to allow simplified flushing, maintenance, and system isolation.
This kit provides integrated hot and cold water isolation valves with service ports, enabling descaling and routine servicing without disconnecting the heater from the plumbing system. It is intended for residential and light commercial tankless installations where code-compliant shutoff and service access are required.
The valve kit installs directly to the water connections of approved Rinnai tankless units and is commonly used during initial installation or retrofit upgrades. Integrated purge ports allow connection of hoses for flushing and cleaning procedures, helping maintain heat exchanger efficiency over time.
Installation must follow local plumbing codes and manufacturer guidelines to ensure proper flow control and safe operation.