User Guide

12 RH180 Manual
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
*
I Combuson Air Screen
J Operaon 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 Thermostac Mixing Valve
*
R Non-Tempered Return Line
*
S Non-Tempered Supply Line
*
Typical Installaons
* Field Supplied
A
B
D
C
E
F
H
P
O
N
J
I
K
G
M
L
S
F
R
Q
A
MIXING VALVE INSTALLATION
RETURN
SUPPLY
COLD WATER
SUPPLY
NON
-
TEMPERED
SUPPLY
COLD WATER
SUPPLY
HOT WATER
OUTLET