Typical Installations - Rinnai RH180 Installation Fundamentals

Piping – Typical Installation

Typical Installations.

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A Hot Water Outlet
B Hot water Outlet Valve
C Temperature – Pressure
Relief valve
D Cold and Hot Unions
E Cold Water Supply valve
F Cold Water Supply
G Thermal Expansion Tank
H 4" B-Vent
Mixing Valve Installation
* I Combustion Air Screen
* J Operation Unit /
Temperature Control
K Outlet Receptacle
* L Drain Pan
* M Temperature – Pressure
Relief Valve Discharge
*
Pipe (do not cap plug or
* reduce)
* N Drip Leg (Sediment Trap)
O Gas Union
P Gas control valve
Q Thermostatic Mixing Valve
R Non-Tempered Return
Line
S Non-Tempered Supply
Line
* Field Supplied
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