Sediment Traps - Kenmore 153.331762 Use & Care Manual

pound per square inch (3.5 kPa). It should be isolated from the gas
supply piping system by closing its individual manual shut-off valve
during any pressure testing of the gas supply piping system at test
pressures equal to or less than 1/2 pound per square inch (3.5 kPa).
Connecting the gas piping to the gas control valve of the water
heater can be accomplished by either of the two methods shown
in Figures 20 and 21.

SEDIMENT TRAPS

Contaminants in the gas lines may cause improper operation of
the gas control valve that may result in fire or explosion. Before
attaching the gas line be sure that all gas pipe is clean on the
inside. To trap any dirt or foreign material in the gas supply line,
a sediment trap must be incorporated in the piping. The sediment
trap must be readily accessible. Install in accordance with the Gas
Piping section. Refer to the current edition of the National Fuel
Gas Code, ANSI Z223.1/NFPA 54.
Fire and Explosion Hazard
Contaminates in gas lines can cause
fire or explosion.
Clean all gas piping
installation.
Install sediment trap in accordance
with NFPA54.
A sediment trap should be installed as close to the inlet of the
water heater as practical at the time of water heater installation. The
sediment trap should 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 should be installed in conformance with
one of the methods of installation, shown in Figures 20 and 21.
FIGURE 20. GAS PIPING wITH FlEXIBlE CONNECTOR.
before
FIGURE 21. GAS PIPING wITH All
BlACK IRON PIPE TO GAS CONTROl.
19