GROUND JOINT
GASCONTROL
UNION
VALVE
{OPTIONAL)
3" MIN. | (SEDIMENT | TRAP) |
(76=2 m _])_ | DRIP | LEG |
FIGURE19. GAS PIPING WITH FLEXIBLECONNECTOR.
A sediment trap shall be installed as close to the inlet of the water heater as practical at the time of water heater installation. The sediment trap shall be either a tee fitting with a capped
nipple in the bottom outlet or other device recognized as an effective sediment trap. If a tee fitting is used, it shall be installed in conformance with one of the methods of installation, shown in Figures 19 and 20.
UNION | BLACK | PIPE |
eROtJNn JOINT _ | _ BLA)K | PIPE j{_ |
(OPTIONAL) |
|
|
|
| CONTROL |
|
| VALVE |
3" MIN, |
|
|
(76,_ m _ |
| GAS |
FIGURE 20. GAS PIPING WITH ALL
BLACK IRON PIPE TO GAS CONTROL.
17
