Sediment traps, Awarning, Sediment trap -17 – Kenmore POWER MISER 153.336261 User Manual
Page 17: Fire
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Sediment Traps
AWARNING
Fire
and Explosion Hazard
Contaminants in gas lines can
cause fire or explosion.
Clean
all
gas
piping
before
installation.
Install
drip
leg
in accordance
with NFPA 54.
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 drip leg (sometimes called a sediment trap)
must be incorporated in the piping. The drip leg must be readily
accessible. Install in accordance with the
Gas Piping
section.
Refer to the current edition of the National Fuel Gas Code,
ANSIZ223.1/NFPA54.
A sediment trap shall be installed as dose 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.
FIGURE 19. GAS PIPING WITH FLEXIBLE CONNECTOR
GAS
CONTROL
VALVE
FIGURE 20. GAS PIPING WITH ALL
BLACK IRON PIPE TO GAS CONTROL
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