Rinnai Demand Duo R Series Installation And Operation Manual page 34

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 6 in. B-Vent
I Operation Unit / Temperature
Control
J Drain Pan
K Pressure Relief Valve Dis-
charge Pipe (do not cap,
plug, or reduce)
L Drip Leg (Sediment Trap)
M Gas Union
N Gas Valve
O Thermostatic Mixing Valve
P Non-Tempered Return Line
Q Non-Tempered Supply Line
* Field Supplied
Demand Duo™ R-Series Installation and Operation Manual
Figure 30
*
B
A
*
Hot Water Supply
*
D
*
*
*
C
*
I
*
K
J
*
*
Mixing Valve Installation
*
*
Figure 31
Q
H
N
M
L
E
D
O
P
F
Cold Water
Supply
G
34