Pressure Relief Valve Installation Instructions
To install the pressure relief valve, follow the steps below.
1.
On the bottom of the tankless water heater, hand tighten the Pressure Relief Valve Assembly and Gasket to
the Pressure Relief Valve Union Fitting.
2.
Rotate the Pressure Relief Valve Assembly to the desired accessible position. With a wrench, tighten the
Union Nut to the Pressure Relief Valve Union Fitting.
Pressure Relief Valve
Union Fitting
Gasket
Union Nut
NOTICE:
DO NOT use pipe dope or thread sealant on union fitting with gasket.
NOTICE:
Be careful not to lose or throw away the gasket.
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Pressure Relief Valve Assembly
Rinnai Tankless Water Heater Installation and Operation Manual
The Pressure Relief Valve
Assembly can rotate 360° to
accommodate the application.