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A.O. Smith FMD 40 Manuale Utente

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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