A.O. Smith 315795-000 MH - Manuel (Page 5)

5
TYPICAL INSTALLATION
GET TO KNOW YOUR WATER HEATER - GAS MODELS
A Vent Pipe
B Securing Clamp
C Anode (Not Shown)
D Hot Water Outlet
E Outlet
F Roof
Jack
G Gas Supply
H Manual Gas Shut-off Valve
I Ground Joint Union
* INSTALL IN ACCORDANCE
WITH LOCAL CODES.
* DRIP LEG AS REQUIRED
BY LOCAL CODES.
FIGURE 1.
J Drip Leg (Sediment Trap)
K Manifold Door
L Outer Door
M Union
N Inlet Water Shut-off Valve
O Cold Water Inlet
P Inlet
Nipple
Q Temperature-Pressure Relief Valve
R Rating Plate
S Flue Baffl e
T Gas Control Valve/Thermostat
U Drain Valve
V Pilot and Main Burner
W Flue
X Air Duct Assembly
Y Metal Drain Pan
Z Thermostat Shield (optional)
ZZ Piezo Igniter
* ALL PIPING MATERIALS TO BE
SUPPLIED BY CUSTOMERS.
TO VENT
TERMINATION
ON ROOF
(T) GAS CONTROL VALVE/ THERMOSTAT
(V) PILOT & MAIN BURNER
THERMOSTAT
SHIELD
(OPTIONAL)
Z