Rinnai Demand Duo CX Series Installation Instructions Manual page 40

Table 19
A Hot Water Outlet
B Hot Water Outlet Valve
C Cold and Hot Unions
Temperature-Pressure
D
Relief Valve
Operation Unit /
E
Temperature Control
Temperature-Pressure
F Relief Valve Discharge Pipe
(do not cap, plug, or reduce)
Pressure Relief Valve
G Discharge Pipe (do not cap,
plug, or reduce)
Condensate Discharge Pipe
H
(Must include air gap)
I Drain Pan
J Thermal Expansion Tank
K Gas Control Valve
L Gas Union
M Drip Leg (Sediment Trap)
N Cold Water Supply Valve
O Cold Water Supply
P Non-Tempered Supply Line *
Q Thermostatic Mixing Valve
*
Field Supplied
Demand Duo H-Series with SENSEI CX Installation Instructions
Figure 43
Hot Water
*
Supply
*
*
B
A
D
*
E
F
*
*
I
*
*
*
G H
*
*
*
Mixing Valve Installation
*
Figure 44
*
P
Hot
C
Water
Union
K
L
M
C
N
Cold
Water
Union
Q
Cold Water Supply
O
J
40