Rinnai Tankless Water Heater Installation and Operation Manual
53
4.8.2 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
Pressure Relief Valve Assembly
The Pressure Relief Valve
Assembly can rotate 360°
to accommodate the
application.
Figure 55
•
Do not use pipe dope or thread sealant on union fitting with gasket.
•
Be careful not to lose or throw away the gasket.
IMPORTANT
